Kohler MPac1500 User Manual

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Operation

Automatic Transfer Switches

Controls:

Decision-Makerr MPAC 1500

Transfer Switch Models:

KCS/KCP/KCC

KBS/KBP/KBC

KAS/KAP

KGS/KGP

KEP

TP-6883 4/21d

Table of Contents

Safety Precautions and Instructions 7........................................................

Introduction 9..............................................................................

List of Related Materials 9.....................................................

Service Assistance 10........................................................................

Section 1 Operation 11.......................................................................

1.1 Introduction 11..........................................................

1.2 Source Names 11........................................................

1.3 User Interface Panel 11...................................................

1.3.1 Display 12......................................................

1.3.2 Display Contrast 12..............................................

1.3.3 Pushbuttons 12..................................................

1.3.4 LED Indicators 13................................................

1.3.5 Lamp Test 13....................................................

1.3.6 Examples 13....................................................

1.4 Main Menu 15...........................................................

1.5 Passwords 16...........................................................

1.5.1 Changing Passwords 16..........................................

1.5.2 Test Password Reset and Disable 16...............................

1.6 Normal Operation Menus 17..............................................

1.7 System Test 18..........................................................

1.7.1 Unloaded System Test 19.........................................

1.7.2 Loaded System Test 19...........................................

1.7.3 Closed-Transition Loaded Test 19..................................

1.7.4 Auto-Loaded System Test 20......................................

1.7.5 Sync Check (closed-transition) 20..................................

1.8 Automatic Operation Test 20..............................................

1.9 Exercise 23.............................................................

1.9.1 Unloaded Exercise 23............................................

1.9.2 Load Bank Control 23............................................

1.9.3 Loaded Exercise 23..............................................

1.10 Warnings and Faults 24...................................................

1.10.1 Fault Reset 25...................................................

1.1 1 Accessory Module Faults 25..............................................

1.11.1 Module Status Change 25.........................................

1.11.2 Module Status Conflict 26.........................................

1.12 Reset Data 27...........................................................

1.12.1 Reset Maintenance Records 27....................................

1.12.2 Reset Event History 27...........................................

1.12.3 Reset Default Parameters 28......................................

1.12.4 Reset and Disable Test Password 28...............................

Section 2 Sequence of Operation 29..........................................................

2.1 Controller Power-up/Reset 29.............................................

2.2 Sequence of Operation, Standard Transition Models 30.......................

2.2.1 Preferred Source Loss and Return, Standard Transition 30............

2.2.2 Exerciser Operation, Standard Transition 30.........................

2.2.3 Test Sequence, Standard Transition 31.............................

2.3 Sequence of Operation, Programmed-Transition 32..........................

2.3.1 Preferred Source Loss and Return, Programmed Transition 32.........

2.3.2 Exerciser Operation, Programmed Transition 32

2.3.3 Test Sequence, Programmed Transition 33..........................

.....................

TP-6883 4/21 Table of Contents 3

Table of Contents, continued

2.4 Sequence of Operation, Closed-Transition Models 34.........................

2.4.1 Preferred Source Loss and Return, Closed Transition 34..............

2.4.2 Failure to Synchronize (Programmed-Transition Override) 34..........

2.4.3 Exerciser Operation, Closed Transition 35...........................

2.4.4 Test Sequence, Closed Transition 35...............................

2.4.5 Extended Transfer Time Relay 36..................................

2.5 Sequence of Operation, Service Entrance Models 37.........................

2.5.1 Preferred Source Loss and Return, Service Entrance Models 37.......

2.5.2 Exerciser Operation,

Service Entrance Models 37.......................................

2.5.3 Test Sequence,

Service Entrance Models 38.......................................

Section 3 View Screens 39...................................................................

3.1 Introduction 39..........................................................

3.2 Main Screen 39..........................................................

3.3 View Screens 39.........................................................

3.4 View Event History 40....................................................

3.5 View Maintenance Records 40.............................................

3.6 View Exerciser Setup 41..................................................

3.7 View Prime Power Setup 41...............................................

3.8 View System Setup 41...................................................

3.9 View Source Setup 42....................................................

3.10 View Time Delays, Source 1 44............................................

3.1 1 View Time Delays, Source 2 46............................................

3.12 View Inputs/Outputs 48...................................................

3.13 View Common Alarms 48.................................................

3.14 View Communications Setup 49...........................................

3.15 View Control Parameters 49...............................................

Section 4 Setup 51...........................................................................

4.1 Introduction 51..........................................................

4.2 Setup Menus 51.........................................................

4.3 Time/Date 52............................................................

4.4 Exerciser 53............................................................

4.4.1 Setting the Exerciser 53..........................................

4.4.2 Source/Source Mode 53..........................................

4.5 Prime Power Run 55.....................................................

4.5.1 Prime Power Mode Setup 55......................................

4.5.2 Prime Power Mode Operation 55...................................

4.6 Time Delays 56..........................................................

4.6.1 Time Delays 56..................................................

4.6.2 Load Control Time Delays 56......................................

4.6.3 Set S1 Time Delays 57...........................................

4.6.4 Set S2 Time Delays 59...........................................

4.7 Load Control 61.........................................................

4.7.1 Time-Based Load Control 61......................................

4.7.2 Current-Based Load Control 63....................................

4.8 Set Sources 65..........................................................

4.8.1 Phase Rotation 65...............................................

4.8.2 In-Phase Monitor 65..............................................

4.8.3 Preferred Source Selection 65.....................................

4.8.4 System Voltage and Frequency 67

4.8.5 Voltage and Frequency Pickup and Dropout Settings 67...............

4.8.6 Set Sources 68..................................................

.................................

TP-6883 4/21Table of Contents4

Table of Contents, continued

4.9 Inputs and Outputs 71....................................................

4.9.1 Controller Inputs and Outputs 71...................................

4.9.2 Input/Output Modules 71..........................................

4.9.3 Input Functions 72...............................................

4.9.4 Output Functions 73..............................................

4.9.5 User-Defined I/O Descriptions 74..................................

4.10 Common Alarms 75......................................................

4.10.1 Common Alarm Output 75........................................

4.10.2 Audible Alarm 75................................................

4.10.3 Chicago Alarm 75................................................

4.11 Set System 76..........................................................

4.11.1 Default Settings 76...............................................

4.11.2 Source Type/Source Type 76......................................

4.11.3 Transition Type 76...............................................

4.11.4 Service Entrance 78..............................................

4.11.5 Rated Current 78................................................

4.11.6 Three Source Engine Start Mode 78................................

4.11.7 Transfer Commit 78..............................................

4.11.8 Remote Test Loading 78..........................................

4.11.9 Peak Shave TD Bypass 78........................................

4.12 Three-Source Systems 79................................................

4.12.1 Three Source Engine Start Mode 79................................

4.12.2 Preferred Source Toggle 79.......................................

4.12.3 Three Source System Te st and Exercise 79.........................

4.12.4 Three-Source System Setup 81....................................

4.12.5 ATS1 and ATS2 System Setup 81..................................

4.13 Communications 83......................................................

4.14 Set Passwords 83.......................................................

4.15 Calibration 84...........................................................

4.16 Setting the Current to Zero 84.............................................

4.17 Reset Data 84...........................................................

Section 5 Communications 85................................................................

5.1 Introduction 85..........................................................

5.2 Connections 85..........................................................

5.2.1 USB Port SiteTech Connection 85..................................

5.2.2 Modbus Connection 86...........................................

5.2.3 Ethernet Connection 86...........................................

5.3 Communications Setup 87................................................

5.3.1 Modbus Serial Communication Setup 87............................

5.3.2 Network Communication Setup 87.................................

5.3.3 Setup Using the Controller Keypad 87..............................

5.3.4 Setup Using SiteTech 87..........................................

5.4 Parameter Files 91.......................................................

5.5 Controller Firmware Updates 91...........................................

Section 6 Scheduled Maintenance 93..........................................................

6.1 Introduction 93..........................................................

6.2 Testing 94..............................................................

6.2.1 Weekly Generator Set Exercise 94.................................

6.2.2 Monthly Automatic Control System Test 94..........................

TP-6883 4/21 Table of Contents 5

Table of Contents, continued

6.3 Inspection and Service 94.................................................

6.3.1 External Inspection 94............................................

6.3.2 Internal Inspection 95.............................................

6.3.3 SPD Inspection 95...............................................

6.3.4 Other Inspections and Service 95..................................

6.3.5 Model KGS/KGP Bypass/Isolation Switches 95......................

6.4 Service Schedule 96.....................................................

Section 7 Accessories 97....................................................................

7.1 Introduction 97..........................................................

7.2 Accessory Modules 97...................................................

7.2.1 Input/Output (I/O) Modules 98.....................................

7.2.2 External Battery Supply Module (EBSM/BOB) 99.....................

7.2.3 Alarm Module 100................................................

7.3 Controller Disconnect Switch 102...........................................

7.4 Current Sensing 103......................................................

7.5 Digital Meter 105..........................................................

7.6 Heater 105...............................................................

7.7 Line-to-Neutral Voltage Monitoring 106.......................................

7.8 Load Shed (Forced Transfer to OFF) 106....................................

7.8.1 Description 106...................................................

7.8.2 Customer Connection 107..........................................

7.9 Supervised Transfer Control Switch 108......................................

7.9.1 Manual Transfer 108..............................................

7.9.2 Automatic Transfer Switches 108....................................

7.9.3 Non-Automatic Transfer Switches 109...............................

7.10 Surge Protection (SPD) 110................................................

7.10.1 SPD Status Indicators 112.........................................

7.10.2 SPD Remote Status Indicator 112...................................

7.10.3 SPD Replacement 112............................................

7.11 User Interface Cover 113..................................................

Appendix A Abbreviations 115................................................................

Appendix B Screen Summaries 117...........................................................

TP-6883 4/21Table of Contents6

Safety Precautions and Instructions

IMPORT ANT SAFETY INSTRUCTIONS.

Electromechanical equipment, including generator sets, transfer switches, switchgear, and accessories, can cause bodily harm and pose life-threatening danger when improperly installed, operated, or maintained. To prevent accidents be aware of potential dangers and act safely. Read and follow all safety precautions and instructions. SAVE THESE INSTRUCTIONS.

This manual has several types of safety precautions and instructions: Danger, Warning, Caution, and Notice.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

NOTICE is used to address practices not related to physical injury.

Safety decals affixed to the equipment in prominent places alert the operator or service technician to potential hazards and explain how to act safely. The decals are shown throughout this publication to improve operator recognition. Replace missing or damaged decals.

Accidental Starting

WARNING

Accidental starting. Can cause severe injury or death.

Disconnect the battery cables before working on the generator set. Remove the negative (- ) lead first when disconnecting the battery. Reconnect the negative (- ) lead last when reconnecting the battery.

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Move the generator set master switch to the OFF position. (2) Disconnect the power to the battery charger. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent starting of the generator set by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer.

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

Hazardous Voltage/ Moving Parts

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

DANGER

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

Grounding electrical equipment. Hazardous voltage will cause severe injury or death. Electrocution is

possible whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set, transfer switch, and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Short circuits. Hazardous voltage/current will cause severe injury or death. Short circuits can

cause bodily injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.

TP-6883 4/21 7Safety Precautions and Instructions

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power

sources before servicing. Turn off the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Move all generator set master controller switches to the OFF position. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (- ) leads first. Reconnect negative (- ) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

Making line or auxiliary connections. Hazardous voltage will cause severe injury or death. To

prevent electrical shock deenergize the normal power source before making any line or auxiliary connections.

deenergized by inline connector separation. Test circuits with a voltmeter to verify that they are deenergized before servicing.

Testing live electrical circuits. Hazardous voltage or current will cause severe injury or death. Have

trained and qualified personnel take diagnostic measurements of live circuits. Use adequately rated test equipment with electrically insulated probes and follow the instructions of the test equipment manufacturer when performing voltage tests. Observe the following precautions when performing voltage tests: (1) Remove all jewelry. (2) Stand on a dry,approved electrically insulated mat. (3) Do not touch the enclosure or components inside the enclosure. (4) Be prepared for the system to operate automatically.

(600 volts and under)

Heavy Equipment

WARNING

Notice

NOTICE

Improper operator handle usage.

Use the manual operator handle on the transfer switch for maintenance purposes only . Return the transfer switch to the normal position. Remove the manual operator handle, if used, and store it in the place provided on the transfer switch when service is completed.

NOTICE

Electrostatic discharge damage.

Electrostatic discharge (ESD) damages electronic circuit boards. Prevent electrostatic discharge damage by wearing an approved grounding wrist strap when handling electronic circuit boards or integrated circuits. An approved grounding wrist strap provides a high resistance (about 1 megohm), not a direct short,to ground.

Servicing the transfer switch controls and accessories within the enclosure. Hazardous voltage will cause severe injury or death.

Disconnect the transfer switch controls at the inline connector to deenergize the circuit boards and logic circuitry but allow the transfer switch to continue to supply power to the load. Disconnect all power sources to accessories that are mounted within the enclosure but are not wired through the controls and

Unbalanced weight. Improper lifting can cause severe injury or death and equipment damage.

Use adequate lifting capacity. Never leave the transfer switch standing upright unless it is securely bolted in place or stabilized.

TP-6883 4/218 Safety Precautions and Instructions

Introduction

This manual provides operation instructions for the Kohlerr Decision-Makerr MPAC 1500 automatic transfer switch controller and related accessories.

The Decision-Makerr MPAC 1500 controller is available for the transfer switch models shown below.

Model Description

KCS Standard-Transition Any Breaker ATS *

KCP Programmed-Transition Any Breaker ATS *

KCC

KBS

KBP

KBC

KAS Standard-Transition Electrically Operated

KAP Programmed-Transition Electrically Operated

KGS

KGP

KEP

* Available with automatic or non-automatic controller [ Available with automatic controller only

Closed-Transition Any Breaker ATS [

Standard-Transition Bypass/Isolation ATS [

Programmed-Transition Bypass/Isolation ATS [

Closed-Transition Bypass/Isolation ATS [

Bypass/Isolation ATS [

Standard-Transition Bypass/Isolation ATS [

Programmed-Transition Bypass/Isolation ATS [

Service Entrance ATS [

For Bypass/Isolation models, refer to the Installation Manual for instructions to bypass and isolate the transfer switch. See List of Related Materials for document part numbers.

Information in this publication represents data available at the time of print. Kohler Co. reserves the right to change this literature and the products represented

without n otice and without any obligation or liability whatsoever.

The equipment service requirements are very important to safe and efficient operation. Inspect parts often and perform required service at the prescribed intervals. Obtain service from an authorized service distributor/ dealer to keep equipment in top condition.

Read this manual and carefully follow all procedures and safety precautions to ensure proper equipment operation and to avoid bodily injury. Read and follow the Safety Precautions and Instructions section at the beginning of this manual. Keep this manual with the equipment for future reference.

List of Related Materials

A separate transfer switch installation manual provided with the unit contains instructions for transfer switch installation instructions, manual operation procedures, and bypass/isolation instructions, if applicable.

Literature Item Part Number

Specification Sheet, MPAC 1500 Controller G11-128

Installation Manual, Model KCS/KCP/KCC TP-6833

Installation Manual, Model KBS/KBP/KBC TP-6835

Installation Manual, Model KGS/KGP TP-6836

Installation Manual, Model KEP TP-6946

Installation Manual, Model KAS/KAP TP-7190

Operation Manual, Modbus Protocol TP-6113

TP-6883 4/21 9Introduction

Service Assistance

For professional advice on generator set power requirements and conscientious service, please c ontact your nearest Kohler distributor or dealer.

D Visit the Kohler Co. website at KOHLERPower.com.

D Look at the labels and decals on your Kohler product

or review the appropriate literature or documents included with the product.

D Call toll free in the US and Canada 1-800-544-2444.

D Outside the US and Canada, call the nearest regional

office.

Headquarters Europe, Middle East, Africa (EMEA)

Kohler EMEA Headquarters Netherlands B.V. Kristallaan 1 4761 ZC Zevenbergen The Netherlands Phone: (31) 168 331630 Fax: (31) 168 331631

Asia Pacific

Kohler Asia Pacific Headquarters Singapore, Republic of Singapore Phone: (65) 6264-6422 Fax: (65) 6264-6455

China

North China Regional Office, Beijing Phone: (86) 10 6518 7950

(86) 10 6518 7951 (86) 10 6518 7952

Fax: (86) 10 6518 7955

East China Regional Office, Shanghai Phone: (86) 21 6288 0500 Fax: (86) 21 6288 0550

India, Bangladesh, Sri Lanka

India Regional Office Bangalore, India Phone: (91) 80 3366208

(91) 80 3366231

Fax: (91) 80 3315972

Japan, Korea

North Asia Regional Office Tokyo, Japan Phone: (813) 3440-4515 Fax: (813) 3440-2727

TP-6883 4/2110 Service Assistance

Section 1 Operation

1.1 Introduction

This section contains operation instructions, including:

D User interface panel, with display, pushbuttons, and

LED indicators

D Main menu D System status, warnings, and faults D Passwords D Te s ts D Warnings and Faults D Reset Data

1.2 Source Names

Throughout this manual, the sources are referred to as follows. Source 1 (S1) is connected to the Normal side of the transfer switch and is also referred to as Source N. Source 2 (S2) is connected to the Emergency side of the transfer switch and is also called Source E. The engine start contacts are associated with Source 2.

ThePreferredSourceisthesourcethatwillbeusedif both sources are available. Typically, this is the normal utility source 1. If the transfer switch is equipped with the optional alarm module, the Set Preferred Source menu allows the operator to select either source as the preferred source. Source 2 (connected to the emergency side of the contactor) can be set as the preferred source using this menu. See Section 4.8.3 for more information about preferred source selection.

Other applications may use different configurations, such as the gen-gen configuration which uses two generator set sources and no utility.

1.3 User Interface Panel

The user interface panel is located on the transfer switch door. Figure 1-1 shows the user interface pushbuttons and LED indicators.

3 4

1. Source N Available LED

2. Source N Position LED

3. Source E Position LED

4. Source E Available LED

5. USB port for SiteTecht

connection

Figure 1-1 User Interface Panel

6. System Alert LED

7.NotinAutoLED

GM85884

8. Pushbuttons (4)

9. Display

TP-6883 4/21 11Section 1 Operation

1.3.1 Display

The four-line display indicates transfer switch status and setup, including the following:

D System status D Faults and warnings D Active time delays D Source voltages D Source frequency (Hz) D Current (amps) D Source setup information D Time and date D Time and date of next scheduled exercise

The display also identifies the pushbutton functions, which can change from menu-to-menu.

Down arrow (closed). Step down to the next menu or scroll through a list.

Up arrow (closed). Step back to the previous menu.

Right arrow (closed). Move to the next submenu.

Up arrow (open). Increases the selected numerical value.

Down arrow (open). Decreases the selected numerical value.

Right arrow (open). Steps to the next digit in a selected numerical value.

Back Steps back to the previous menu or submenu.

1.3.2 Display Contrast

To adjust the display contrast, press and hold the second button until two rows of asterisks (*) appear. Then press the up arrow button to increase the contrast or the down arrow button to decrease the contrast. The display will return to the main menu after a few seconds if no buttons are pressed.

1.3.3 Pushbuttons

The user interface panel has four pushbuttons below the display. Pushbutton functions are shown above each button in the last line of the display and can change from menu-to-menu. The pushbutton functions are defined in Figure 1-2.

Note: The current can be set to zero (0) by pressing the

first and last pushbuttons together. See section

4.16 for instructions.

End

Delay

End

OK Enters the displayed numerical value

Reset Reset the fault condition shown on the display,

Save Saves settings shown on the display.

Start From the Test menu, starts the test sequence.

Test From the main menu, moves to the test

Ends the current time delay.

Ends an active test sequence. See

Tes t

Section 2.2.3.

(password or setting).

Main Returns to the main menu.

Next Steps to the next parameter in an item with

multiple settings (for example, in Exerciser Setup).

or reset an accessory module after connection.

Set From the main menu, moves to the first

setup menu.

sequence menus. See Section 1.7.

View From the main menu, moves to the first

view menu.

Figure 1-2 Pushbutton Functions

TP-6883 4/2112 Section 1 Operation

1.3.4 LED Indicators

1.3.5 Lamp Test

LEDs on the user interface indicate contactor position, source availability, faults, and other conditions. The table in Figure 1-3 describes the functions of the LED indicators.

See Section 1.10 for more information about warnings and faults.

Some programmable inputs will trigger the LEDs to light or flash. See Section 4.9.

LED Indicator Condition

Source N Available, Green

Source E Available, Red Source E is available.

Position A, Green Contactor is in Normal position.

Position B, Red Contactor is in Emergency position.

System Alert, Red Fault. Identify and correct the cause

Not in Auto, Red ATS is not set for automatic

Source N is available.

of the fault condition, then reset faults at the controller. See Section 1.10.

Input active: Low Battery Voltage or Remote Common Alarm. See Section 4.9.

operation or a load shed (forced transfer to OFF) sequence is active.

Flashes for manual transfer waiting.

Input active: Inhibit Transfer, Forced Transfer to OFF. See Section 4.9.

Figure 1-3 User Interface LED Indicators

To test the LEDs on the controller’s user interface, go to the Main menu. Press the down arrow button once, then press the Lamp Test button and verify that the LCD menu and all 6 LEDs on the user interface illuminate. SeeFigure1-4.

System Ready

LD Exer 12/14 @ 16:00

Norm 480V Emer 480V

Press the down arrow button.

B View Set Test

Norm AB BC AC ##Hz ###V ###V ###V

Lamp

Press and hold the Lamp Test button.

BYTe s t Ma in

Figure 1-4 Lamp Test

1.3.6 Examples

Figure 1-5 illustrates navigation through the menus.

Figure 1-6 illustrates how to use the pushbuttons to step through menus and change settings. This example shows setting the time.

Set Common Alarms

BY"Main

Press the right arrow button to enter the Set Common Alarms menu.

Set Common Alarms

Alarm Group 1

BY "Back

Press the up and down arrow buttons to step between alarm groups 1 and 2.

Press the right arrow to modify settings in the displayed group.

Figure 1-5 Example: Set Common Alarms

Modify Alarm

BY "Back

Press the up and down arrow buttons to select Modify Alarm or Remove All Alarms

Remove All Alarms

BY "Back

Alarm Description

Common Audible

BY "Back

Press the up and down arrow buttons to step through the alarm descriptions. Then press the right arrow to change the common and audible assignments for that function.

Remove All Alarms

Yes/N o

Back Save

Press the up arrow button to toggle yes or no. If Yes is displayed, pressing Save will remove all alarms from the selected group (1 or 2). Pressing Back exits without executing the Remove command.

Alarm Description

Common Y Audible N

Back Save

Press the up arrow button to step through all combinations of yes and no for common and audible.

Press Save to save the common and audible alarm settings.

TP-6883 4/21 13Section 1 Operation

System OK

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

Set Time

BY "Back

Press the SET button.

Enter Password

Time to Enter #:##

???

Press the open UP arrow button to increase the first digit of the password from 0 through 9.

Note: The default password is 0000.

Press the open RIGHT arrow button to move to the next digit. Repeat Steps 2 and 3 until the correct password is displayed.

Enter Password

Time to Enter #:##

Enter Password

000

Press the right arrow button to enter the Set Time submenu.

Set Time #

Back Save

Press the open up arrow button to increase the first digit. (Use 00:00 to 23:59 for time.)

Set Time 1#:##

Back Save

Press the open right arrow button to step to the next digit. Repeat steps 7 and 8 until the correct time is displayed.

Set Time 14:37

#:##

Press OK to enter the password.

Set Time/Date

BY "Main

Press the right arrow button to enter the Set Time/Date submenu.

Figure 1-6 Example: Setting the Time

Back Save

Press Save.

TP-6883 4/2114 Section 1 Operation

1.4 Main Menu

The main menu appears at system startup and displays the following information(seeFigure1-7):

D System Status (see F igure 1-8)

Press the Test button to enter the Test mode. A password is required. See Section 1.7.

The display returns to the main menu after 10 minutes of no activity (no buttons pressed).

D Date and time of the next scheduled exercise run (if

programmed)

D Measured source voltages

D Pushbutton functions

Pressing the down arrow button steps to the normal operation menus shown in Section 1.6. Step through these menus to check the measured frequency, line voltages, current (if the current sensing accessory is installed), and other system information.

Some parameters will appear only under certain conditions. For example:

D If no exercise runs are scheduled, the second line of

themainmenuisblank.

D The Daylight Saving Time settings are displayed only

if DST is enabled.

D Phase rotation and in-phase monitoring are

displayed only for three-phase systems.

D Some parameters and time delays appear only for

programmed-transition models.

D The menus displayed during a test or exercise

sequence will vary depending on the time delay settings.

Pressing the View button steps to the view menus shown in Section 3.3.

Passwords are required to enter the setup and test modes. See Section 1.5 for more information about passwords.

System Ready

LD Exer 12/14 @ 16:00

Norm 480V Emer 480V

B View Set Test

1. System status message

2. Next scheduled exercise, if programmed

3. Source voltages detected

Figure 1-7 Main Menu

System Status Messages

Aux Switch Fault

Aux Switch Open

Exerciser Active

External Battery Low

Fail to Acquire Pref

Fail to Acquire Stby

Fail to Transfer

In Phase Waiting

Inhibit Transfer

Low Battery Voltage

Maint DIP Switch

Module Lost Comm

New Module

Peak Shave Active

Phase Rotation Error

Remote Common Alarm

System Ready

Test Mode Active

Figure 1-8 System Status Messages

6446

Press the Set button to enter the setup mode. A password is required. See Section 4.2 for system setup menus.

TP-6883 4/21 15Section 1 Operation

1.5 Passwords

Passwords are required to enter the Test and Setup menus. Passwords are 4-digit numbers. See Figure 1-9 for instructions to enter the password using the pushbuttons on the controller’s user interface.

There a re two passwords:

Setup Password. The setup password controls access to the system setup menus, which allow changes to system settings, time delays, etc.

For closed-transition models, the setup password is required to initiate a transfer when the programmed transition override function is set to manual. See Section 1.7.3.

Note: The factory default password is 0000.

Enter Password

Time to Enter #:##

???<

Press the open up arrow button to increase the first digit of the password from 0 to 9.

Enter Password

Time to Enter #:##

>0???<

Test Password. The test password controls access to the test sequence menus. The test password is required to initiate a loaded, unloaded, or auto-loaded test, and also to initiate a sync check test on closed-transition models.

If the correct password is not entered within 30 seconds, the display returns to the main menu.

The factory default password is 0000. Change the password to allow only authorized personnel to start and end tests or change settings.

1.5.1 Changing Passwords

Use the Passwords Setup Menu to change passwords. See Section 4.14.

1.5.2 Test Password Reset and Disable

The test password can be reset to the default value or disabled. Use the Setup Menu- Reset Data menu. See Figure 1 -26.

Note: Disable the test password only during service

unless the transfer switch is located in a secure location.

Press the open right arrow button to step to the next digit. Repeat for all four digits.

Enter Password

Time to Enter #:##

>0000

Press the OK button to enter the password.

Incorrect Password

If the wrong password is entered, the Incorrect Password message appears. Check the password and try again.

Figure 1-9 EnteringaPassword

Disabling the test password allows any user to initiate a test sequence from the controller’s user interface without entering a password. Initiating a t est starts the generator set and, if a loaded test is selected, transfers the load.

TP-6883 4/2116 Section 1 Operation

1.6 Normal Operation Menus

During normal transfer switch operation, the screens shown in Figure 1-10 or Figure 1-11 are displayed. Use the up a nd down arrow buttons to view the sy stem status information as shown. Press Main to return to the main menu from any screen.

The Sequence of Operation descriptions in Sections 2.2 through 2.4 describe the transfer switch normal operation for standard, programmed, and closed transition models.

System Ready

LD Exer 12/14 @ 16:00

Norm 480V Emer 480V

B View Set Test

System Ready

LD Exer 12/14 @ 16:00

Norm 480V Emer 480V

B View Set Test

Norm AB BC AC ##Hz ###V ###V ###V

Lamp

BYTe st M ai n

Norm AN BN CN ##Hz ###V ###V ###V

BY Main

Emer AB BC AC ##Hz ###V ###V ###V

Norm L1 L2 ##Hz ###V ###V

Lamp

BYTe s t Ma i n

Emer L1 L2 ##Hz ###V ###V

BY Main

Amps L1 L2

#### ####

BY Main

Time/Date

09:10 DST 01/13/06

BY Main

Daylight Saving Time

Clock Ahead 1 Hour

Sun 03/12/06

BY Main

Daylight Saving Time

ClockBack1Hour

Sun 11/05/06

BY Main

Normal Preferred

Util-Gen Operation

No Commit Transfer

BY Main

Standard Transition

BY Main

Emer AN BN CN ##Hz ###V ###V ###V

BY Main

Amps LA LB LC

#### #### ####

BY Main

Time/Date

09:10 DST 01/13/06

BY Main

Daylight Saving Time

Clock Ahead 1 Hour

Sun 03/12/06

BY Main

Daylight Saving Time

Clock Back 1 Hour

Sun 11/05/06

BY Main

Normal Preferred

Util-Gen Operation

No Commit Transfer

BY Main

Standard Transition

Phase Rotation ABC

In Phase Enabled

BY Main

Figure 1-11 Three-Phase Operation

BY Main

Figure 1-10 Single-Phase Operation

TP-6883 4/21 17Section 1 Operation

1.7 System Test

Use the system test feature to:

D Start and run the generator set.

D Simulate a preferred source failure, resulting in a

transfer to the standby source.

D Check source synchronization (closed-transition

models only).

time delays. See Figure 1-16 for Sync Check menus for closed-transition models.

Press the End Test designated pushbutton to end the test. Time delays will execute as programmed when the test is ended. Press the End Delay button to end the currently displayed time delay, if desired.

To check the source voltage and frequency while a test is running, press the Main button. Press the Test button to return to the test sequence menus.

See Figure 1-12 for the test sequence menus. From the main menu, press the Test button and then enter the password. The password ensures that only authorized personnel can start a test.

Press the down arrow button to navigate to the desired test sequence. Press the Start button to start the test.

Figure 1-13 shows the menus displayed during the test run. Menus are dependent on the system settings and

System Ready

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

Enter Password

Time to Enter #:##

???<

Press the Test button to enter the Test mode. A password is required.

If the emergency source is lost during a system test, the fail to acquire standby signal is indicated immediately, and the test is terminated. If the contactor is in the standby position, it transfers immediately to the preferred position.

See Section 4.9.3 for additional information about the remote test input.

Type of Test

Auto Load

Time :## min

B Main " Start

Type of Test

Loaded

B Main Start

Type of Test

Unloaded

B Main Start

Auto Load Test

Enter Time

Time ?? min

Back OK

Figure 1-12 Test Selection Menus

Type of Test Sync Check

B Main Start

TP-6883 4/2118 Section 1 Operation

Engine Start in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

LD# Disc in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

Xfr to Off in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

XfrtoEmerin##:##

Norm ###V Emer ###V

End End

Main Delay Test

Add LD# in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

System on Test

Norm ###V Emer ###V

End End

Main Delay Test

LD# Disc in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

Xfr to Off in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

XfrtoNormin##:##

Norm ###V Emer ###V

End End

Main Delay Test

Add LD# in ##:##

Norm ###V Emer ###V

End End

Main Delay Test

Appears if load control time delays are set

Programmed-transition models only

Appears if load control time delays are set

Programmed-transition models only

Appears if load control time delays are set

1.7.1 Unloaded System Test

When an unloaded test is initiated, the controller immediately signals the generator to start, without waiting for the engine start time delay to expire. The contactor does not change position during an unloaded test, but if the normal source should fail, the contactor will transfer to the emergency source.

The unloaded test feature is available only with the Util-Genset and Genset-Genset modes of operation.

The load bank control output is active during an unloaded exercise or unloaded system test. If the contactor transfers to the standby position during the test, the load bank control is deactivated. (The standby source supplies power to the load.)

1.7.2 Loaded System Test

A loaded test simulates a preferred source failure, except that the engine start time delay is bypassed. The generator set is signaled to start immediately upon test activation. Load control signals are issued prior to transfer with their associated time delays. Since the loaded test transfer will be between two live sources, the in-phase monitor or closed transition feature will be activated if it is enabled. If the preferred source is lost during a loaded test with the contactor in the standby position, the test will continue to be active, even on restoration of preferred. If the standby source is lost and the preferred source is available, the test will be terminated, and the transfer switch will immediately transfer to the preferred source position, bypassing all time delays except the off-position requirements in a programmed-transition system.

When a loaded test is terminated normally, the retransfer sequence operates as though the preferred source has been restored after a failure. All time delays are executed and an in-phase transfer will occur if enabled. The loaded test feature is available with the Util-Genset, Util-Util and Genset-Genset modes of operation.

1.7.3 Closed-Transition Loaded Test

Eng Cooldown ##:##

Norm ###V Emer ###V

End End

Main Delay Test

When a loaded test is initiated on a closed-transition model, the generator set is signaled to start and the controller monitors the sources for synchronization. The load is transferred when the sources are synchronized.

Note: See Figure 1-16 for Sync Check menus.

Figure 1-13 Test Sequence Menus

TP-6883 4/21 19Section 1 Operation

If the sources do not sync before the Fail to Sync time delay expires, the programmed-transition override function operates.

D If the override function is set to Automatic, a

programmed-transition transfer will occur when the Fail to Sync time delay expires. The contactor stops in the OFF position for the length of the off-to standby time delay before proceeding to transfer to the standby source.

D If the override function is set to manual, the user can

either initiate a programmed-transition type transfer (setup password required) or cancel the test sequence. See Figure 1-14. If neither action is taken, the controller will continue to check for synchronization and transfer if the sources synchronize.

See Section 4.11.3 for instructions to set the programmed-transition override function.

Manual Transfer

Password:

Cancel OK

1. Use arrow buttons to enter the setup password and click OK to initiate a manual programmed-transition transfer. OR

2. Press the Cancel button to cancel the test.

Figure 1-14 Manual Transfer Menu for

Programmed-Transition Override

1.7.5 Sync Check (closed-transition)

The Sync Check allows a test of the synchronization of two available sources without initiating a transfer. Navigate to the Type of Test, Sync Check menu and press the Start button to begin the test. The controller displays Syncing during the test, and the phase angle difference is shown between two arrows. For example, > 10 < indicates that the sources are 10 degrees out of phase. The arrows move closer together as the sources approach synchronization. When the sources synchronize, the controller indicates Synced and continues to monitor the source synchronization. The load is not transferred. See Figure 1-16. Press the End Te st button to end the test.

Type of Test Sync Check

B Main Start

System on Test

Norm ###V Emer ###V

Syncing

End

Main > 102 < Test

System on Test

Norm ###V Emer ###V

Synced

End

Main >< Test

Figure 1-16 Sync Check Menus

1.7.4 Auto-Loaded System Test

The auto-loaded test feature is a timed, loaded test. The auto-loaded time delay determines how long after the transfer to standby to terminate the test and transfer back to the preferred source. The time is defaulted to 30 minutes and can be adjusted from 1 minute to 60 minutes. See Figure 1-15.

Type of Test Auto Loaded Time :## min

B Main " Start

1. Press right arrow button to go to the Enter Time menu.

2. Use the open arrow buttons to enter the duration time for the test. Then press OK.

3. Press Start to start the test.

3 2

Figure 1-15 Auto Loaded Test Menus

Auto Loaded Test

Enter Time

Time: ?? min

Back OK

1.8 Automatic Operation Test

Note: Close and lock the enclosure door before starting

the test procedure.

Preferred Source Selection. The test procedure assumes that Source N is the preferred source. If the ATS is equipped with the alarm board accessory, check the preferred source selection before proceeding with the automatic operation test. To check the preferred source selection, use the down arrow button to step down from the main s creen until Normal Preferred or Emergency Preferred is displayed. See Figure 1-10 or Figure 1-11.

Supervised Transfer Switch. If the transfer switch is equipped with a supervised transfer switch, verify that it is set to the Auto position.

Follow the procedure below to start a loaded test. Verify that the ATS starts the generator set and transfers the load to the emergency source, executing all time delays that are set up to operate during a loss of the normal source. End the test and verify that the transfer switch transfers the load back to the normal source and removes the engine start signal, executing all

TP-6883 4/2120 Section 1 Operation

appropriate programmed time delays. Refer to Section

2.2.3 for a more detailed description of the test sequence of operation.

Load control time delay settings may affect the operation sequences.

Note: If the standby source fails during a loaded test,

theATSwillimmediatelyattempttotransfertothe preferred source.

Automatic Operation Test Procedure

1. Check the controller LED indicators to verify that the Position N and Source N Available indicators are lit.

If the sources do not synchronize before the fail to sync time delay expires, operation depends on the programmed transition override setting. If automatic override is enabled, the ATS will transfertheloadusingaprogrammedtransition transfer. If automatic override is not enabled, the ATS will continue to monitor the source synchronization and transfer when/if the sources synchronize. The operator can initiate a programmed-transition transfer (password required) or cancel the transfer.

8. Press the End Test button.

9. Verify that the switch transfers the load back to Source N.

2. Verify that the generator set m aster switch is in the AUTO position.

3. Refer to Figure 1-17. From the main screen, press the Test button. Enter the test password when prompted and press OK.

4. Press the down arrow button to display Type of Test Loaded.

5. Press the Start button.

6. Verify that the generator set starts and the Source E Available LED lights.

7. Verifythat the switch transfers the load to Source E. Observe the controller LEDs and display as the time delays execute and the load is transferred.

a. Standard-Transition Models: After the

preferred-to-standby transfer time delay, verify that the Position N LED turns off and the Position E LED lights, indicating that the switch has transferred the load to Source E.

b. Programmed-Transition Models: After the

preferred-to-off time delay, verify that the Position N LED turns off. After the off-to-standby time delay, check that the Position E LED lights, indicating that the switch has transferred the load to Source E.

c. Closed-Transition Models: See Section 1.7.3.

After the preferred-to-standby time delay, the controller monitors the sources for synchronization. When the sources are in sync,theATStransferstheloadtoSourceE and the Position E LED lights. Both sources will be connected for less than 100 milliseconds before Source N is disconnected and the Position N LED turns off.

a. Standard-Transition Models: After the

standby-to-preferred time delay, verify that the Position E LED goes out and the Position N LED lights, indicating that the switch has transferred the load to Source N.

b. Programmed-Transition Models: After the

standby-to-off time delay, verify that the Position E LED goes out. After the off-topreferred time delay, check that the Position N LED lights, indicating that the switch has transferred the load to Source N.

c. Closed-Transition Models: See Section 1.7.3.

After the standby-to-preferred time delay, the controller monitors the sources for synchronization. When the sources are in sync, the ATS transfers the load to Source N and the Position N LED lights. Both sources will be connected for less than 100 milliseconds before Source E is disconnected and the Position E LED turns off.

10. After the engine cooldown time delay expires, the engine start s ignal is removed. Verify that the generator set stops.

Note: The generator set may have an engine

cooldown time delay that causes the generator set engine to run after the transfer switch engine start signal is removed.

TP-6883 4/21 21Section 1 Operation

System OK

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

On the main screen, press the Test button.

Enter Password

Time to Enter #:##

???<

Typ e of Test

Auto Load

Time :## min

B Main " Start

Typ e of Test

Loaded

B Main Start

Engine Start in ##:##

Norm ###V Emer ###V

End End Delay Test

Use the open arrow buttons to enter the Test password. See Section 1.5 for instructions. Then press t he OK button.

Press the down arrow button to step to the loaded test screen.

Press the Start button to initiate the test sequence.

Additional test sequence screens may appear, depending on the system settings.

System on Test

Norm ###V Emer ###V

End

Main Test

PresstheMainbuttontoreturntothemainscreen during the test, if desired. From the main screen, press Test to return to the test screen.

PresstheEndTestbuttontoendthetest.

Figure 1-17 Starting and Stopping the Automatic Operation Test

TP-6883 4/2122 Section 1 Operation

1.9 Exercise

Schedule exercise runs through the Set Exercise menus. See Section 4.4. To run the generator set at a time other than a scheduled exercise sequence, use the Test function. See Section 1.7 for instructions.

When a scheduled exercise is running, the menus shown in Figure 1-18 appear. Press Main to return to the main menu, if desired. Press the End button to end the exercise sequence before the scheduled stop time, if necessary.

If a system test or peak shave is active when the exercise is scheduled to occur, the exercise is skipped. A preferred-source failure during an exerciser period causes the exercise to be terminated and normal ATS operation to resume.

An exercise event can be temporarily disabled to prevent its execution and then re-enabled later using the enable/disable setting in the Set Exercise menus. See Section 4.4.

1.9.1 Unloaded Exercise

An unloaded exercise starts and runs the generator set without transferring the load.

contactor transfers to the standby position, the load bank control will be deactivated. (The standby source supplies power to the load.)

1.9.3 Loaded Exercise

A loaded exercise starts the generator set and transfers the load from the normal source to the standby source.

On closed-transition models, transfer will occur when the sources are synchronized. If the sources do not sync, press Cancel to end the exercise.

Exerciser Active

Fail to Acquire 00:59

Norm ###V Emer ###V

Main End

Exerciser Active

Time Remaining 00:29

Norm ###V Emer ###V

Main End

Figure 1-18 Exercise Sequence Menus

Display during generator set engine start or if engine does not start immediately.

Display during exercise run.

1.9.2 Load Bank Control

The load bank control output is active during an unloaded exercise or unloaded system test. If the

TP-6883 4/21 23Section 1 Operation

1.10 Warnings and Faults

When a fault exists, the System Alert indicator flashes, a designated output and the common fault output are turned on, and an appropriate message is displayed to indicate the fault. See Figure 1-19 for the location of the System Alert indicator.

ATS warnings and faults are shown in Figure 1-20. There are three types of warning/fault conditions:

Warning. Warnings automatically reset with a source availability change or a transfer request.

Fault Requiring Manual Reset. Under these conditions, normal ATS operation is halted. Active modes are turned off. If the contactor is in the preferred source position, the engine cooldown time delay executes and the engine start contacts open, allowing the generator set to shut down. See Section 1.10.1 for instructions to reset faults.

Self Resetting Faults. Under these conditions, active modes are turned off. If the contactor is in the preferred source position, the engine cooldown time delay executes and the engine start contacts open, allowing the generator set to shut down. When the fault condition is corrected, the fault is automatically cleared from the controller and normal ATS operation continues.

1. System Alert LED

GM85888

Figure 1-19 Fault Indication

Condition Ty p e Description

Failure to Acquire Standby Source Warning The source voltage did not reach the acceptable range within a set

Failure to Acquire Preferred Source Warning

IPM Synching (In-Phase Monitor Synching)

External Battery Low Warning The voltage of the battery connected to the external battery supply

Failure to Transfer Warning The signal to transfer is sent to the contactor and the main shaft

Src N (or Src E) Rotation Err Self-Resetting Fault The detected phase rotation of one or both sources does not match

I/O Module Lost Comm Self-Resetting Fault An I/O device has stopped communicating or does not have a

Auxiliary Switch Fault Manual Reset Fault The main shaft auxiliary switches indicate that the ATS is in more

Auxiliary Switch Open Manual Reset Fault The main shaft auxiliary switches indicate that the ATS is in neither

Source1/Source2 Breaker Trip (service entrance models only)

Module Status Change Manual Reset Fault An accessory module has been disconnected OR a new module is

Module Status Conflict Manual Reset Fault An accessory module has been replaced with a different type of

External Fault Self-Resetting Fault The external input dedicated to this condition is closed.

Warning (status) ThetwosourcesdidnotcomeintophasewithintheFailto

Manual Reset Fault The Source1 or Source2 circuit breaker in the service entrance

time (see Time Delays). For example, the standby source generator set did not start.

Synchronize time delay. Note: If the sources do come into phase after the time delay expires, the warning is automatically cleared and normal ATS operation continues.

module (EBSM) is low.

auxiliary switch fails to indicate a complete ATS position change. The controller will attempt to transfer the unit three times before the fault is indicated.

the preselected setting.

correct address specified. Fault resets if communication is reestablished.

than one position, or the position changed when no signal was sent to initiate the change.

position (all inputs are open).

transfer switch has tripped due to an overcurrent condition. Identify and correct the cause of the fault before resetting the controller.

detected. See Section 1.11.1 to reset.

module with the same address. See Section 1.11.2 to reset.

Figure 1-20 Warnings and Faults

TP-6883 4/2124 Section 1 Operation

1.10.1 Fault Reset

To clear a fault or warning condition and reset the System Alert LED, go to the Main menu and press the down arrow button to open the Reset menu. See Figure 1 -19 and Figure 1-21. Then press the button labeled Reset. A fault reset does not change the controller settings.

Module Status Change

Norm ###V Emer ###V

Reset View Set Test

Reset

New Module

Press Reset.

See Section 1.11, Accessory Module Faults, for instructions to correct and reset faults related to the I/O modules and other accessory modules.

When a fault message is displayed, press the down arrow on the Main menu to step to the Reset Fault menu.

Then press the Reset button.

(B) button

Fault Message

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

Reset

Fault Description

BYReset Main

Figure 1-21 Fault Reset

1.11 Accessory Module Faults

Accessory modules are optional equipment.

1.11.1 Module Status Change

Connecting or disconnecting one or more accessory modules can cause the Module Status Change message to be displayed.

Module Connection (new or reconnected module)

Installing or reconnecting one or more accessory modules triggers the Module Status Change message. See Figure 1-22. Press the Reset button to display Reset New Module. Press the Reset button from that menu. The controller recognizes the module type(s). See Figure 1-23.

BYReset Main

Figure 1-22 Menus after Module Connection

Module

Type

AOB

SOB

POB

Description

Switch/Alarm Module (alarm option board)

Standard I/O Module (standard option board)

High-Power I/O Module (power option board)

Figure 1-23 Module Types

Disconnected Module

If one or more accessory modules are disconnected from the controller, the message Module Status Change appears. See Figure 1-24. Pressing the Reset button displays the m essage Check Module Setup to Clear Fault. Use the following Module Uninstall Procedure to uninstall modules after disconnection.

Module Status Change

Norm ###V Emer ###V

Reset View Set Test

Check Module Setup

to Clear Fault

BYReset Main

Press Reset.

Press Main and follow Module Uninstall Procedure.

Figure 1-24 Menus after Module Disconnection

Navigate to the Set Input/Outputs>Set Aux I/O menu to check that the controller has recognized the connected modules.

See Section 4.9 for instructions to assign programmable inputs and outputs to I/O modules. Go to Section 4.10 for instructions to assign functions to the audible alarm for an Alarm Module.

TP-6883 4/21 25Section 1 Operation

Module Uninstall Procedure

1.11.2 Module Status Conflict

1. Press Main t o return to the main menu.

2. Press Set to enter setup mode.

3. Enter the setup password.

4. Press the down arrow to step to the Set Inputs/ Outputs menu.

5. Navigate to the Set Auxiliary I/O menu. See Figure 1-25. Press the right arrow button to see the status of module 1. Press the down arrow to step to the next module, if necessary, until the menu shows Status: Lost.

6. Press the right arrow button to move to the Uninstall Module menu. Verify that the menu says Uninstall Module Yes. (Press the open arrow button to toggle no/yes, if necessary.)

7. When Yes is displayed, press Save to uninstall the module.

8. Repeat the uninstall procedure for additional modules, if necessary.

Other Module Status Change Conditions

A Module Status Change message that cannot be cleared as described in this section may indicate a failure of the controller’s real-time clock. Carefully follow the Module Connection or Module Uninstall procedures to attempt to reset the fault. If the fault cannot be reset, the controller’s logic board may need to be replaced. Contact an authorized distributor/dealer for service.

The message Module Status Conflict appears if one type of module is replaced with another type of module that has the same address. Follow the procedure below to resolve the conflict.

Procedure to Clear a Module Status Conflict

1. Disconnect power to the transfer switch.

2. Disconnect the module.

3. Close the enclosure door and reconnect power to the ATS. The display will show Module Status

Change.

4. Press the button labeled Reset. The display will show Check Module Setup to Clear Fault.

5. Follow the procedure in Section 1.11.1 to uninstall the module through the ATS controller keypad.

6. Disconnect power to the ATS.

7. Connect the new module.

8. Close the enclosure door and reconnect power to the ATS. The display will show Module Status Change. SeeFigure1-22.

9. Press the button labeled Reset to display Reset New Module. Press the reset button from that menu. The controller will now recognize the new module type.

10. Navigate to the Set Auxiliary I/O menu to check the status and settings for the new module. See Figure 1-25. Press the right arrow button to see the status of module 1. Press the down arrow t o step to the next module, if necessary,

Set Inputs/Outputs

BY"Main

Main Board I/O

BY"Back

Auxiliary I/O

BY"Back

Figure 1-25 Uninstall Module

Set

Module 1

Type POB Addr 1

Status: Lost

BY"Back

Pressthedownarrowbuttontosteptothe next module, if necessary.

Module 1

Uninstall Module

Yes

Save Back

TP-6883 4/2126 Section 1 Operation

1.12 Reset Data

1.12.1 Reset Maintenance Records

Be sure to read and understand the information in this section before resetting records or parameters.

Note: Resetting to the d efault parameters will reset all

parameters to a factory default setting.

Use the Reset Data menus to set records or parameters back to factory default settings. See Figure 1-26.

1. Use the black arrow buttons to step to the desired menu.

2. Press the open up arrow button to toggle Yes or No until Yes is displayed.

3. Press Save to reset the records or parameters to the factory defaults. Pressing Back exits the menu without resetting.

Reset Data

BY "Main

B Save Back

Reset

Maintenance Records

Yes /No

Reset

Event History

Yes /No

Reset the maintenance records after transfer switch service to update the last maintenance date and totals since reset that are displayed in the maintenance records menu.

1.12.2 Reset Event History

Resetting the event history clears the events from the event history log. The history lists the 100 most recent transfer switch events, including transfers and DIP switch setting changes as well as faults and alarms.

Figure 1-26 Reset Data

Reset

Default Parameters

Yes /No

B Save Back

Reset

Exerciser Setup

Yes /No

B Save Back

Reset

Test Password

Yes /No

B Save Back

Disable

Test Password

Yes /No

B Save Back

Note: Resetting to the default parameters will reset all

parameters, including the system voltage and frequency, to a factory default setting. The transfer switch will not operate correctly if the system voltage and frequency do not matc h the sources.

Note: Disable the test password only during service

unless the transfer switch is installed in a secure location.

TP-6883 4/21 27Section 1 Operation

1.12.3 Reset Default Parameters

1.12.4 Reset and Disable Test Password

Resetting to the default parameters will reset all parameters, including the system voltage and frequency, to a factory default setting. The default system voltage and frequency settings may not match the settings for your application.

The transfer switch will not operate correctly if the system voltage and frequency do not match the sources. Use the Set Sources menu to set the system voltage and frequency after resetting to the default parameters. See Section 6 for instructions.

Check the system operation to verify the settings after resetting.

Reset the Test password to r eturn the test password to the default, 0000.

Note: Disable the test password only during service

unless the transfer switch is installed in a secure location.

Disabling the test password allows any user to initiate a test sequence from the controller’s user interface without entering a password. Initiating a test starts the generator set and, if a loaded test is selected, transfers the load.

TP-6883 4/2128 Section 1 Operation

Section 2 Sequence of Operation

This section explains the transfer switch sequence of operation during the following events:

D Controller power-up or reset

D Preferred source loss and return

D Te s t

D Exercise

D Emergency source loss and return

The Sequence of Operation descriptions in Sections 2.2 through 2.4 describe the transfer switch normal operation for standard, programmed, and closed transition models. Operation can be affected by faults such as the normal or emergency contacts failing to open or close when signaled to do so.

2.1 Controller Power-up/Reset

Following is an explanation of the sequence of operation for the Decision-Makerr MPAC 1500 ATS Controller when power is initially applied to the controller or a controller reset occurs.

1. Controller self test is executed.

2. System parameters are downloaded from nonvolatile memory.

3. Contactor position and source availability are determined.

4. If neither source is acceptable, the contactor does not change p osition.

5. If both sources are available, the controller immediately transfers the contactor to the preferred source.

6. If only one source is available, the controller immediately transfers the contactor to that source, executing only the off-position and load control time delays.

If the available source is the preferred source, and the contactor is in the standby position, the contactor transfers to preferred, the engine cooldown time delay runs, and then the engine start contacts open.

If the available source is the preferred source and the contactor is already in the preferred position, the engine start contacts open immediately, bypassing the engine cooldown time delay.

TP-6883 4/21 29Section 2 Sequence of Operation

2.2 Sequence of Operation, Standard Transition Models

2.2.2 Exerciser Operation, Standard Transition

Operation can be affected by faults such as the normal or emergency contacts failing to open or close when signaled to do so.

2.2.1 Preferred Source Loss and Return, Standard Transition

Following is an explanation of the transfer switch sequence of operation when Preferred Source failure is detected.

Preferred Source Fails

1. Load control contacts open.

2. Engine start time delay expires.

3. The generator is signaled to start.

4. The generator starts and the standby source becomes available.

5. Preferred-to-standby time delay expires.

6. Contactor transfers to standby.

7. Post-transfer load control sequences run.

Unloaded Exercise Sequence Starts

1. Exerciser timer begins.

2. The generator is signaled to start.

3. The generator starts and the standby source becomes available.

4. The load bank control is activated.

Unloaded Exercise Sequence Ends

1. The load bank control is deactivated.

2. Engine cooldown time delay expires.

3. The engine start contacts open, signaling the generator to stop.

Loaded Exercise Sequence Starts

1. Exerciser timer begins.

2. The generator is signaled to start.

3. The generator starts and the standby source becomes available.

8. Load control contacts close.

Preferred Source Returns

1. Standby-to-preferred and pre-transfer load control time delays expire.

2. Load control contacts open.

3. Contactor transfers to preferred source.

4. Post-transfer load control sequences and engine cooldown time delay expire.

5. Load control contacts close.

6. The engine start contacts open, signaling the generator to stop.

4. Preferred-to-standby time delay and pre-transfer load control sequences run.

5. Load control contacts open.

6. Contactor transfers to standby.

7. Post-transfer load control sequences run.

8. Load control contacts close.

Emergency Source Fails (Normal Source is available)

1. Exerciser is deactivated.

2. Load control contacts open.

3. Contactor immediately transfers to preferred.

4. Immediate failure to acquire standby alarm.

5. Post-transfer load control sequences and engine cooldown time delay expire.

6. Load control contacts close.

7. Engine start contacts open.

TP-6883 4/2130 Section 2 Sequence of Operation

Loaded Exercise Sequence Ends

1. Pre-transfer load control sequences run.

2. Load control contacts open.

3. Contactor transfers to preferred.

4. Post-transfer load control sequences and engine cooldown time delay expire.

Emergency Source Fails (Normal Source is available)

1. Test function is deactivated.

2. Load control contacts open.

3. Contactor immediately transfers to preferred.

4. Immediate failure to acquire standby alarm.

5. Load control contacts close.

6. The engine start contacts open, signaling the generator to stop.

2.2.3 Test Sequence, Standard Transition

Unloaded Test Function is Initiated

1. The generator set is signaled to start.

2. The generator starts and the standby source becomes available.

3. The load bank control is activated.

Unloaded Test Function is Ended

1. The load bank control is deactivated.

2. Engine cooldown time delay expires.

3. The generator is signaled to stop.

5. Post-transfer load control sequences and engine cooldown time delay expire.

6. Load control contacts close.

7. Engine start contacts open.

Loaded Test Function is Ended

1. Standby-to-preferred time delay and pre-transfer load control sequences run.

2. Load control contacts open.

3. Contactor transfers to preferred.

4. Post-transfer load control sequences and engine cooldown time delay expire.

5. Load control contacts close.

6. The engine start contacts open, signaling the generator to stop.

Loaded Test Function is Initiated

1. The generator is signaled to start (engine start contacts close).

2. The generator starts and the standby source becomes available.

3. Pre-transfer load control time delays expire and load control contacts open.

4. Preferred-to-standby time delay expires.

5. Contactor transfers to standby.

6. Post-transfer load control time delays expire and load control contacts close.

TP-6883 4/21 31Section 2 Sequence of Operation

2.3 Sequence of Operation, Programmed-Transition

2.3.2 Exerciser Operation, Programmed Transition

Programmed-transition models operate with a pause in the off position during transfer. The time in the off position is set through the off-to-standby and off-to-preferred time delays.

Operation can be affected by faults such as the normal or emergency contacts failing to open or close when signaled to do so.

2.3.1 Preferred Source Loss and Return, Programmed Transition

Preferred Source Fails

1. Load control contacts open.

2. Engine start time delay expires.

3. The generator is signaled to start (engine start contacts close).

4. The generator starts and the standby source becomes available.

5. Preferred-to-standby time delay expires.

6. Contactor transfers to OFF position.

7. Off-to-standby time delay expires.

8. Contactor transfers to standby source.

Unloaded Exercise

The unloaded exercise sequence is the same as for standard transition. See Section 2.2.2.

Loaded Exercise Sequence Starts

1. Exerciser timer begins.

2. The engine start contacts close, signaling the generator set to start.

3. The generator starts and the standby source becomes available.

4. Preferred-to-standby time delay and pre-transfer load control sequences run.

5. Load control contacts open.

6. Contactor transfers to OFF position.

7. Off-to-standby time delay expires.

8. Contactor transfers to standby source.

9. Post-transfer load control sequences run.

10. Load control contacts close.

Emergency Source Fails (Normal Source is available)

9. Post-transfer load control sequences run.

10. Load control contacts close.

Preferred Source Returns

1. Standby-to-preferred and pre-transfer load control time delays expire.

2. Load control contacts open.

3. Contactor transfers to OFF position.

4. Off-to-preferred time delay expires.

5. Contactor transfers to preferred source.

6. Post-transfer load control sequences and engine cooldown time delay expire.

7. Load control contacts close.

8. The generator is signaled to stop (engine start contacts open).

1. Exerciser is deactivated.

2. Immediate failure to acquire standby alarm.

3. Load control contacts open.

4. Contactor transfers to OFF position.

5. Off-to-preferred time delay expires.

6. Contactor transfers to preferred source.

7. Post-transfer load control sequences and engine cooldown time delay expire.

8. Load control contacts close.

9. Engine start contacts open.

TP-6883 4/2132 Section 2 Sequence of Operation

Loaded Exercise Sequence Ends

1. Pre-transfer load control sequences run.

2. Load control contacts open.

3. Contactor transfers to OFF position.

4. Off-to-preferred time delay expires.

5. Contactor transfers to preferred source.

6. Post-transfer load control sequences and engine cooldown time delay expire.

Emergency Source Fails (Normal Source is available)

1. Test function is deactivated.

2. Immediate failure to acquire standby alarm.

3. Load control contacts open.

4. Contactor moves to the OFF position.

5. Off-to-preferred time delay expires.

6. Contactor transfers to preferred.

7. Load control contacts close.

8. The engine start contacts open, signaling the generator to stop.

2.3.3 Test Sequence, Programmed Transition

Unloaded Test Sequence

The unloaded test sequence is the same as for standard transition. See Section 2.2.3.

Loaded Test Sequence is Initiated

1. The generator is signaled to start (engine start contacts close).

2. The generator starts and the standby source becomes available.

3. Pre-transfer load control time delays expire and load control contacts open.

4. Preferred-to-standby time delay expires.

5. Contactor transfers to the OFF position.

7. Post-transfer load control sequences and engine cooldown time delay expire.

8. Load control contacts close.

9. Engine start contacts open.

Loaded Test Sequence is Ended

1. Standby-to-preferred time delay and pre-transfer load control sequences run.

2. Load control contacts open.

3. Contactor moves to the OFF position.

4. Off-to-preferred time delay expires.

5. Contactor transfers to preferred.

6. Post-transfer load control sequences and engine cooldown time delay expire.

7. Load control contacts close.

8. The engine start contacts open, signaling the generator to stop.

6. Off-to-standby time delay expires.

7. Contactor transfers to standby.

8. Post-transfer load control time delays expire and load control contacts close.

TP-6883 4/21 33Section 2 Sequence of Operation

2.4 Sequence of Operation, Closed-Transition Models

Closed-transition transfer switches operate with no interruption of power to the load during transfer when both sources are available. The controller monitors the sources for synchronization before initiating transfer. Sources are paralleled for less than 100 milliseconds during transfer. (See Section 2.4.5, Extended Transfer Time Relay.)

Operation can be affected by faults such as the normal or emergency contacts failing to open or close when signaled to do so.

5. Standby source contacts open within 100 milliseconds.

Note: If the standby source contacts do not open

within 100 ms, the extended transfer time relay trips the standby source breaker.

6. Post-transfer load control sequences and engine cooldown time delay expire.

7. Load control contacts close as programmed through the Load Add settings.

8. The generator is signaled to stop (engine start contacts open).

2.4.1 Preferred Source Loss and Return, Closed Transition

Preferred Source Fails

1. Load control contacts open.

2. Engine start time delay runs and expires.

3. The generator is signaled to start (engine start contacts close).

4. The generator starts and the standby source becomes available.

5. Preferred-to-standby time delay expires.

6. Preferred source contacts open.

7. Off-to-standby time delay expires.

8. Emergency power contacts close.

9. Post-transfer load control sequences run and load control contacts close, as programmed through the Load Add settings.

Preferred Source Returns

1. Standby-to-preferred and pre-transfer load control time delays expire.

2. Load control contacts open according to the Load Disconnect time delay settings.

2.4.2 Failure to Synchronize (Programmed-Transition Override)

If the sources do not synchronize before the Fail to Sync time delay expires, the programmed-transition override function can initiate a transfer. The override function transfers to the other source using programmedtransition mode, which causes an interruption in power to the load during transfer. The contactor stops in the OFFpositionforaprogrammedperiodoftime,whichis set by the off-to-preferred or off-to-standby time delay. Theoverridefunctioncanbesettooperate automatically or to require manual activation.

D If Automatic programmed-transition override is

selected, a programmed-transition transfer will be initiated automatically when the Fail to Sync time delay expires.

D If Manual programmed-transition override is

selected, an operator can initiate a programmedtransition transfer by entering the setup password and pressing a button after the Fail to Sync time delay expires. If a manual transfer is not initiated, the controller continues to monitor the sources and transfers if synchronization occurs.

See Section 4.11, Set System, to set the programmed-transition override function to automatic or manual. See Section 4.6, Time Delays, to set the off-to-preferred and off-to-standby time delays.

Programmed-Transition Override Sequence

3. Check/wait for source synchronization.

Note: If the sources do not synchronize before the

Fail to Sync time delay expires, the programmed-transition override function operates. See Section 2.4.2.

4. When sources are synchronized, preferred source contacts close.

1. Fail to Sync time delay expires.

2. If Automatic programmed-transition override is enabled, go to step 4.

3. If manual programmed-transition override is enabled, the Manual Transfer screen opens. The

TP-6883 4/2134 Section 2 Sequence of Operation

operator enters the setup password and manually initiates programmed-transition transfer.

4. Standby source contacts open.

5. Off-to-preferred time delay runs and expires.

6. Preferred source contacts close.

7. Post-transfer load control time delays expire and load control contacts close.

8. The engine cooldown time delay expires and the generator set is signaled to stop (engine start contacts open).

2.4.3 Exerciser Operation, Closed Transition

Unloaded Exercise

The unloaded exercise sequence is the same as for standard transition. See Section 2.2.2.

Loaded Exercise Sequence Ends

1. Pre-transfer load control sequences run.

2. Load control contacts open.

3. Check/wait for source synchronization.

Note: If the sources do not synchronize before the

Fail to Sync time delay expires, the programmed-transition override function operates. See Section 2.4.2.

4. When sources are synchronized, preferred source contacts close.

5. Standby source contacts open within 100 milliseconds.

Note: If the standby source contacts do not open

within 100 ms, the extended transfer time relay trips the standby source breaker.

6. Post-transfer load control sequences and engine cooldown time delay expire.

Loaded Exercise Sequence Starts

1. Exercise timer begins.

2. Engine start time delay runs and expires.

3. The generator is signaled to start (engine start contacts close).

4. The generator starts and the standby source becomes available.

5. Load control contacts open.

6. Check/wait for source synchronization.

Note: If the sources do not synchronize before the

Fail to Sync time delay expires, the programmed-transition override function operates. See Section 2.4.2.

7. When sources are synchronized, emergency source contacts close.

8. Normal source contacts open within 100 milliseconds.

7. Load control contacts close as programmed through the Load Add settings.

8. The generator is signaled to stop (engine start contacts open).

2.4.4 Test Sequence, Closed Transition

Unloaded Test Sequence

The unloaded test sequence is the same as for standard transition. See Section 2.2.3.

Loaded Test Sequence is Initiated

1. Engine start time delay runs and expires.

2. The generator is signaled to start (engine start contacts close).

3. The generator starts and the standby source becomes available.

4. Load control contacts open.

Note: If the normal contacts do not open, the

emergency contacts will be signaled to open and a Fail to Transfer fault will be activated.

TP-6883 4/21 35Section 2 Sequence of Operation

5. Check/wait for source synchronization.

Note: If the sources do not synchronize before the

Fail to Sync time delay expires, the programmed-transition override function operates. See Section 2.4.2.

6. When sources are synchronized, emergency source contacts close.

7. Normal source contacts open within 100 milliseconds.

Note: If the normal contacts do not open, the

emergency contacts will be signaled to open and a Fail to Transfer fault will be activated.

Loaded Test Sequence is Ended

1. Standby-to-preferred and pre-transfer load control time delays expire.

2. Load control contacts open according to the Load Disconnect time delay settings.

3. Check/wait for source synchronization.

Note: If the sources do not synchronize before the

Fail to Sync time delay expires, the programmed-transition override function operates. See Section 2.4.2.

4. When sources are synchronized, preferred source contacts close.

5. Standby source contacts open within 100 milliseconds.

2.4.5 Extended Transfer Time Relay

The extended transfer time relay is provided on closed-transition transfer switches. The relay is provided to prevent paralleling t he standby and utility sources for longer than the acceptable time if the closed-transition transfer time exceeds 100 ms.

The relay operation time is adjustable between 100 ms and 10 seconds. The recommended setting is 1% =

0.1 seconds (100 ms). If it is necessary to set the relay to a longer time, ensure that the time setting is in accordance with applicable codes. See the transfer switch installation manual for instructions to change the time setting.

The relay activates only if the closed-transition transfer time exceeds the set time. A Fail to Open Source1 (or Source2) fault message will display on the ATS controller. Identify and correct the cause of the source disconnect problem before resetting the fault.

Note: If the standby source contacts do not open

within 100 ms, the extended transfer time relay trips the standby source breaker.

6. Post-transfer load control sequences and engine cooldown time delay expire.

7. Load control contacts close as programmed through the Load Add settings.

8. The generator is signaled to stop (engine start contacts open).

TP-6714

Figure 2-1 Extended Transfer Time Relay

TP-6883 4/2136 Section 2 Sequence of Operation

2.5 Sequence of Operation, Service Entrance Models

2.5.2 Exerciser Operation, Service Entrance Models

Service entrance models operate in programmedtransition mode, with a pause in the off position during transfer. The time in the off position is set through the off-to-standby and off-to-preferred time delays. If the OFF time delay is shorter than the time required for the circuit breaker to open, the transfer time will be controlled by the circuit breaker operation time.

2.5.1 Preferred Source Loss and Return, Service Entrance Models

Preferred Source Fails

1. Load control contacts open.

2. Engine start time delay expires.

3. The generator is signaled to start (engine start contacts close).

4. The generator starts and the standby source becomes available.

5. Preferred-to-standby time delay expires.

6. Source 1 circuit breaker opens.

7. Off-to-standby time delay expires.

8. Source 2 circuit breaker closes.

9. Post-transfer load control time delays expire.

Unloaded Exercise

The unloaded exercise sequence is the same as for standard transition. See Section 2.2.2.

Loaded Exercise Sequence Starts

1. Exerciser timer begins.

2. The engine start contacts close, signaling the generator set to start.

3. The generator starts and the standby source becomes available.

4. Pre-transfer load control time delays expire.

5. Load control contacts open.

6. Preferred-to-standby time delay expires.

7. Source 1 circuit breaker opens.

8. Off-to-standby time delay expires.

9. Source 2 circuit breaker closes.

10. Post-transfer load control time delays expire.

11. Load control contacts close.

Emergency Source Fails (Normal Source is available)

10. Load control contacts close.

Preferred Source Returns

1. Pre-transfer load control time delays expire.

2. Load control contacts open.

3. Standby-to-preferred time delay expires.

4. Source 2 circuit breaker opens.

5. Off-to-preferred time delay expires.

6. Source 1 circuit breaker closes.

7. Post-transfer load control sequences and engine cooldown time delay expire.

8. Load control contacts close.

9. The generator is signaled to stop (engine start contacts open).

TP-6883 4/21 37Section 2 Sequence of Operation

1. Immediate failure to acquire standby alarm.

2. Exerciser is deactivated.

3. Load control contacts open.

4. Source 2 circuit breaker opens.

5. Off-to-preferred time delay expires.

6. Source 1 circuit breaker closes.

7. Post-transfer load control time delays expire and load control contacts close.

8. Engine cooldown time delay expires and engine start contacts open.

Loaded Exercise Sequence Ends

1. Pre-transfer load control sequences run.

2. Load control contacts open.

3. Source 2 circuit breaker opens.

4. Off-to-preferred time delay expires.

5. Source 1 circuit breaker closes.

6. Post-transfer load control time delays expire and load control contacts close.

Emergency Source Fails (Normal Source is available)

1. Test function is deactivated.

2. Immediate failure to acquire standby alarm.

3. Load control contacts open.

4. Source 2 circuit breaker opens.

5. Off-to-preferred time delay expires.

6. Source 1 circuit breaker closes.

7. Engine cooldown time delay expires.

8. The engine start contacts open, signaling the generator to stop.

2.5.3 Test Sequence, Service Entrance Models

Unloaded Test Sequence

The unloaded test sequence is the same as for standard transition. See Section 2.2.3.

Loaded Test Sequence is Initiated (Loaded)

1. The engine start contacts close, signaling the generator set to start.

2. The generator starts and the standby source becomes available.

3. Pre-transfer load control time delays expire and load control contacts open.

4. Preferred-to-standby time delay expires.

5. Source 1 circuit breaker opens.

7. Post-transfer load control sequences and engine cooldown time delay expire.

8. Load control contacts close.

9. Engine start contacts open.

Loaded Test Sequence is Ended

1. Standby-to-preferred time delay and pre-transfer load control sequences run.

2. Load control contacts open.

3. Source 2 circuit breaker opens.

4. Off-to-preferred time delay expires.

5. Source 1 circuit breaker closes.

6. Post-transfer load control sequences and engine cooldown time delay expire.

7. Load control contacts close.

8. The engine start contacts open, signaling the generator to stop.

6. Off-to-standby time delay expires.

7. Source 2 circuit breaker closes.

8. Post-transfer load control time delays expire and load control contacts close.

TP-6883 4/2138 Section 2 Sequence of Operation

Section 3 View Screens

3.1 Introduction

This section illustrates the view screens. Use the view screens to check system settings, event history, and maintenance records. No password is required to navigate through the view screens.

For detailed instructions for using the password-protected setup and test screens, see Section 4.

Some parameters will appear only under certain conditions. For example:

D The Daylight Saving Time settings are displayed only

if DST is enabled.

D Phase rotation and in-phase monitoring are

displayed only for three-phase systems.

D Some parameters and time delays appear only for

programmed-transition models.

3.2 Main Screen

The main screen appears at system startup. See Figure 3 -1.

3.3 View Screens

From the main screen, press the View button to step to the first view screen, View Event History.

In the View screens, press the down arrow step to the next view screen. Press the right arrow ( button to view details.

System Ready

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

View

Event History

Main Screen. Press theViewbuttontostep to the first View screen.

Press the down arrow button ( the next screen.

BY"Main

View

Maintenance Records

BY"Main

View

Exerciser Setup

BY"Main

Source2TimeDelays

BY"Main

(B)buttonto

B)tomoveto

View

Press the View button to navigate to the View screens shown in the following sections.

The display returns to the main screen after 10 minutes of no activity (no buttons pressed). See Section 1.6 for instructions to view system status from the main screen.

System Ready

LD Exer 12/14 @ 16:00

Norm 480V Emer 480V

B View Set Test

6446

Figure 3-1 Main Screen

View

Prime Power Setup

BY"Main

View

System Setup

BY"Main

View

Source Setup

BY"Main

View

Source1 Time Delays

BY"Main

View

Inputs/Outputs

BY"Main

View

Common Alarm

BY"Main

View

Communications Setup

BY"Main

View

Control Parameters

BY"Main

TP-6883 4/21 39Section 3 View Screens

3.4 View Event History

The Event History screens show recent transfer switch events. Examples of events recorded in the event history are shown in Figure 3-2. Events are time- and date-stamped. Check the event history for recent transfer switch operation, faults, or changes to settings. The event history is especially useful for transfer switch troubleshooting.

View

Event History

BY "Main

Press the right arrow

")buttontoview

( events in the event history log.

Event Descriptions

EndTimeDelayBtn Tes t B t n Exercise Btn Lamp Test Service Req’d Reset Maint DIP Switch Pwd DIP Switch Manual Option Switch New Module Contactor in Off Contactor in Src N Contactor in Src E Low Battery Exerciser Active Fail to Acquire Pref Fail to Acquire Stby Fail to Sync Fail to Transfer I/O Module Lost Comm Aux Switch Fault Aux Switch Open Rem End Time Delay Forced Trans to Off Peak Shave Mode Inhibit Transfer Remote Test Low Battery Voltage

Remote Common Alarm

Event Description

ON / OFF MM/DD/YY HH:MM

Additional Info

B Back

Press the down arrow

(B)buttontosteptothe

next event in the log.

Bypass Contactor Dis 3 Src System Disable Over Frequency Under Frequency Phase Loss Phase Rotation Error Over Voltage L1- L2 Over Voltage L2- L3 Over Voltage L3- L1 Under Voltage L1- L2 Under Voltage L2- L3 Under Voltage L3- L1 Voltage Imbalance Save History To File Auto Loaded Test End Test Loaded Changed Pref Source Changed Reload Dflt Params MODBUS Peak Shave MODBUS Forced to OFF MODBUS System Test Battery Control Out USB Connected USB Disconnected Minimum Values Maximum Values Breaker Trip

3.5 View Maintenance Records

View

Maintenance Records

BY "Main

Press t he right arrow

")buttontoview

( maintenance items.

Maintenance Items

Tot a l M i n no t i n P r e f

Reset Min Not Pref

Total Min in Standby

Reset Min in Standby

Total Min Operation

Reset Min Operation

Total Transfers

Reset Transfers

TotalFailTransfer

Reset Fail Transfer

Tot a l L os s P r e f Tr a n

ResetLossPrefTran

View Maintenance

Maintenance Item

#######

BY Back

Press the down arrow

(B)buttontosteptothe

next maintenance item.

Transfer Time N>E

Transfer Time E>N

Dual Src Conn Time

S1 to Open Time

S1 to Close Time

S2 to Open Time

S2 to Close Time

System Start Date

Last Maint Date

Last Loss Date/Time

Last Loss Duration

Figure 3-2 Examples of Event Descriptions

TP-6883 4/2140 Section 3 View Screens

3.6 View Exerciser Setup

3.8 View System Setup

Start date and time

Exercise event number

View

Exerciser Setup

BY "Main

Exercise interval and loaded or unloaded

Press the right arrow

")buttontoview

( programmed exercise

Press the up arrow button next exercise event.

Run time

Ex#??DisabledHH:MM Start MM/DD @ HH:MM Weekly Unloaded

BY Back

(Y)tosteptothe

times.

3.7 View Prime Power Setup

View

Prime Power Setup

BY "Main

Press the right arrow

")buttontoview

( source S1 and S2 run settings.

Enabled/Disabled S1 Duration DD:HH:MM S2 Duration DD:HH:MM

BY Back

View

System Setup

BY "Main

Standard Transition, Programmed Transition, or Closed Transition

No, MCCB, or ICCB

Position: Off or Position: SRC/E (Emergency)

System Setup

Standard Transition

Util-Gen Operation

BY Back

System Setup

Service Entrance

MCCB

BY Back

System Setup

Service Disconnect

Position: Off

BY Back

System Setup

In Phase Disabled

Commit Transfer

BY Back

System Setup

2 I/O Mods Installed

BY Back

System Setup Rated Current

225 Amps

BY Back

System Setup

3SrcEngStartMode

Mode 1/Mode 2

BY Back

System Setup

Remote Test Loading

Loaded/Unloaded

BY Back

System Setup

Peak Shave TD Bypass

Enabled/Disabled

BY Back

TP-6883 4/21 41Section 3 View Screens

3.9 View Source Setup

View

Source Setup

BY "Main

3-phase only

View Source Setup

ABC Rotation

BY Back

View Source Setup

Norm 120V Emer 120V

60 Hz 60 Hz

BY Back

View Source Setup

Normal Under Voltage

PU 90% DO 90%

BY"Back

View Source Setup Normal Under Freq PU 90% DO 99%

BY"Back

View Source Setup

Norm Volt Unbalance

Enable

BY"Back

View Source Setup

Emer Under Voltage

PU 90% DO 90%

BY"Back

View Source Setup

Normal Over Voltage

PU 95% DO 115%

" Back

View Source Setup

Normal Over Freq

PU 110% DO 101%

" Back

View Source Setup

Normal Volt Unbalance

PU 10% DO 20%

Back

View Source Setup Emer Over Voltage

PU 95% DO 115%

" Back

View Source Setup

Debounce 0.5S

Back

View Source Setup

Debounce 3.0S

Back

View Source Setup

Debounce 0.5S

Back

3-phase only

View Source Setup

Emer Under Freq

PU 90% DO 99%

BY"Back

View Source Setup

Emer Volt Unbalance

Enable

BY"Back

Continuedonnextpage

View Source Setup

Emer Over Freq

PU 110% DO 101%

" Back

View Source Setup

Emer Volt Unbalance

PU 10% DO 20%

Back

View Source Setup

Debounce 3.0S

Back

TP-6883 4/2142 Section 3 View Screens

View Source Setup, Continued

Continued from previous page

Standard Transition Only

Closed Transition Only

View Source Setup

In Phase Monitor

BY"Back

View Source Setup

In Phase Xfer Fail

BY"Back

View Source Setup

Synchronization

Voltage Differential

BY"Back

View Source Setup

Synchronization Freq Differential

BY"Back

View Source Setup

Synchronization

Angle Differential

BY"Back

View Source Setup

In Phase Monitor

Enabled/Disabled

" Back

View Source Setup

In Phase Xfer Fail

Enabled/Disabled

" Back

View Source Setup Voltage Differential

## Percent

Back

View Source Setup

Freq Differential

0.# Hz

Back

View Source Setup

Angle Differential

XX Degrees

Back

View Source Setup

In Phase Monitor

Angle XX Degrees

Back

View Source Setup

in Phase Xfer Fail

##:##

Back

View Source Setup

Fail to Sync

BY"Back

View Source Setup

Fail to Sync

Enabled/Disabled

" Back

View Source Setup

Fail to Sync

##:##

Back

TP-6883 4/21 43Section 3 View Screens

3.10 View Time Delays, Source 1

View

Source1TimeDelays

BY"Main

View S1 Time Delays

Engine Start

##:##

BY Back

View S1 Time Delays

Engine Cooldown

##:##

BY Back

View S1 Time Delays

Xfr Pref > Stby

##:##

BY Back

View S1 Time Delays

Xfr Off > Stby

##:##

BY Back

View S1 Time Delays

Fail to Acquire Pref

##:##

BY Back

Load Control Mode None/Time/Current Loads to Control: #

BY Back

Time-Based Control

Load ## Disc N > E

##:##

Time-based

View S1 Time Delays

Time-Based Control

load control.

BY"Back

See current-based load control screens in the following figure.

Time-Based Control

Load ## Reconn E>N

BY Back

##:##

TP-6883 4/2144 Section 3 View Screens

View Time Delays, Source 1, Continued

Current-based load control screens, continued from Source 1 time delay screens.

View S1 Time Delays Current-Based Contrl

Load Disc N>E

BY"Back

View S1 Time Delays Current-Based Contrl

Load Control Source1

BY"Back

Current-Based Contrl

Amps Lvl Remove Srce1

Amps: ####

BY"Back

Current-Based Contrl

Amps Lvl Add Source1

Amps: ####

BY"Back

Current-Based Contrl

Load ## Disc N>E

##:##

BY Back

Current-Based Contrl

Load Ctrl # Source1

Enabled/Disabled

BY"Back

Current-Based Contrl

Load # Add Source1

##:##

BY"Back

Current-Based Contrl Load # Add Source1

Priority: #

BY"Back

Current-Based Contrl

Load # Remove Source1

BY"Back

####

Current-Based Contrl

Load # Remove Source1

Priority: #

BY Back

TP-6883 4/21 45Section 3 View Screens

3.11 View Time Delays, Source 2

View

Source2TimeDelays

BY"Main

View S2 Time Delays

Engine Start

##:##

BY Back

View S2 Time Delays

Engine Cooldown

##:##

BY Back

View S2 Time Delays

Xfr Stby > Pref

##:##

BY Back

View S2 Time Delays

Xfr Off > Pref

##:##

BY Back

View S2 Time Delays

Fail to Acquire Stby

##:##

BY Back

Load Control Mode None/Time/Current Loads to Control: #

BY Back

Time-Based Control

Load ## Disc E > N

##:##

BY"Back

Time-based load control only.

View S2 Time Delays

Time-Based Control

BY"Back

See current-based load control screens in the following figure.

Time-Based Control

Load ## Reconn N>E

##:##

BY Back

TP-6883 4/2146 Section 3 View Screens

View Time Delays, Source 2, Continued

Current-based load control screens, continued from Source 2 time delay screens.

View S2 Time Delays Current-Based Contrl

Load Disc E>N

BY"Back

View S2 Time Delays Current-Based Contrl

Load Control Source2

BY"Back

Current-Based Contrl

Amps Lvl Remove Srce2

Amps: ####

BY"Back

Current-Based Contrl

Amps Lvl Add Source2

Amps: ####

BY"Back

Current-Based Contrl

Load ## Disc E>N

##:##

BY Back

Current-Based Contrl

Load Ctrl # Source2

Enabled/Disabled

BY"Back

Current-Based Contrl

Load # Add Source2

##:##

BY"Back

Current-Based Contrl

Load # Add Source2

Priority: #

BY"Back

Current-Based Contrl

Load # Remove Source2

BY"Back

####

Current-Based Contrl

Load # Remove Source2

Priority: #

BY Back

TP-6883 4/21 47Section 3 View Screens

3.12 View Inputs/Outputs

View

Inputs/Outputs

BY"Main

BY"Back

View

Main Board I/O

View

Auxiliary I/O

See Section 4.9 for input and output function descriptions.

3.13 View Common Alarms

View

Common Alarm

BY "Main

View Common Alarms

Alarms Group #

BY "Main

Main Board I/O

Input ##

Function Description

BY Back

Main Board I/O

Output ##

Function Description

BY Back

Module #1

Type ### Addr 1

Status: OK

BY "Back

View Common Alarms

Alarm Description

Audible:N Common:Y

BY Back

Module #1

Input ##

Function Description

BY Back

Module #1

Output ##

Function Description

BY Back

TP-6883 4/2148 Section 3 View Screens

3.14 View Communications Setup

3.15 View Control Parameters

Ethernet communication requires the Ethernet communication accessory board.

View

Communications Setup

BY "Main

Baud Rates: 9600 19200 57600

View Comm Setup

MODBUS Server TCP

Enabled/Disabled

BY Back

View Comm Setup

MODBUS Server Port 0

Enabled/Disabled

BY Back

View Comm Setup

MODBUS Addr Port 0

###

BY Back

View Comm Setup

Baud Rate Port 0

#####

BY Back

View Comm Setup

MODBUS TCP Unit ID

######

BY Back

View Comm Setup

IP Address

###.###.###.###

BY Back

View Comm Setup

Subnet Mask

###.###.###.###

BY Back

View Comm Setup

MAC Address

##-##-##-##-##-##

BY Back

View Comm Setup

Default Gateway

##-##-##-##-##-##

BY Back

View Comm Setup

DHCP Status

Enabled/Disabled

BY Back

The site designation, load description, branch description, and location are designed to identify the transfer switch. Use a personal computer and Kohlerr SiteTecht software to enter descriptions that uniquely identify the transfer switch. In SiteTech, these items appear under ATS Information.

Kohler SiteTech software is available to Kohler authorized distributors and dealers.

View

Control Parameters

BY "Main

Control Parameters

Application Ver:

BY Back

Control Parameters ATS Serial Number:

#######

BY Back

Control Parameters

Controller Ser. #:

#######

BY Back

Control Parameters

Contactor Serial #:

#######

BY Back

Control Parameters

Site Designation:

NOT SET

BY Back

Control Parameters

Load Description:

NOT SET

BY Back

Control Parameters Branch Description:

NOT SET

BY Back

Control Parameters

Location:

NOT SET

BY Back

Note: Serial numbers are factory-set. Use

SiteTecht soft ware to set the other parameters to identify the transfer switch.

TP-6883 4/21 49Section 3 View Screens

Notes

TP-6883 4/2150 Section 3 View Screens

Section 4 Setup

4.1 Introduction

The Decison-Makerr MPAC 1500 controller is factory-set for your transfer switch model. Some settings may need to be changed at installation or during service. This section lists factory default settings and includes instructions to change parameter settings using the setup menus.

Use the Setup menus to change the controller time delays, pickup and dropout settings, inputs, outputs, and options, if necessary.

Settings can also be assigned using a personal computer with Kohlerr SiteTecht software or over Modbus. SiteTecht software is available to authorized Kohler distributors. See TP-6701, SiteTech Software Operation Manual, for instructions to change settings using SiteTech software. See TP-6113, Modbus Protocol Manual, for Modbus register maps.

System Ready

LD Exer ##/## @ ##:##

Norm ###V Emer ###V

B View Set Test

Press the Set button in the main menu to enter the Setup menus. The setup password is required.

4.2 Setup Menus

From the main operation window, press the Set button to enter the setup menus.

The setup password is required. The default password is 0000. Changing the password is recommended. See Section 4.14 for instructions to change the password.

After entering the password, use the black arrow keys to step through the setup menus as shown in Figure 4-1.

Timeout. After 10 minutes of no activity (no buttons pressed) the controller exits the setup mode and returns to the main menu.

The following sections discuss the setup menus in the order of appearance on the controller.

Enter Password

Time to Enter #:##

???<

Set Time/Date

BY "Main

Set Exerciser

BY "Main

Set Prime Power Run

BY "Main

SetS1TimeDelays

BY "Main

Password D isabled

Press t he down arrow Press the right arrow

Appears if the password disable DIP switch is set (disable for service only). Press the OK

B button to step to the next menu.

" button to enter the detailed setup menu.

Set Sources

BY "Main

Set Inputs/Outputs

BY "Main

Set Common Alarms

BY "Main

button to proceed.

Set Communications

BY "Main

Set Passwords

BY "Main

Calibration

BY "Main

SetS2TimeDelays

BY "Main

Press the down arrow B button. Press the down arrow B button.

Set System

BY "Main

Reset Data

BY "Main

Figure 4-1 Main Setup Menus

TP-6883 4/21 51Section 4 Setup

4.3 Time/Date

Note: Set the current time and date after transfer switch

installation or after an extended period of no power.

Set the current time and date. The time and date are used by the exercise function and event history functions.

The Time/Date setup menu includes the option to enable automatic Daylight Saving Time and set the start andstopdate. SeeFigure4-2.

Set Time/Date

BY "Main

Set Time

BY "Back

Set Date

BY "Back

Set Automatic

Daylight Saving Time

BY "Back

Example: 2nd Sun of Mar

Figure 4-2 Setting the Time and Date

Set Time ?

Back Save

Set Date ??/??/??

Back Save

Clock Ahead 1 Hour

### DDD of MMM

Back Next Back Next

?:??

ClockBack1Hour ### DDD of MMM

Enable Daylight Saving

Time

YES/NO

Back Save

TP-6883 4/2152 Section 4 Setup

4.4 Exerciser

4.4.2 Source/Source Mode

The exerciser uses a calendar-based scheduling system. Up to 21 different exercise events can be scheduled, each with different settings. Exerciser settings include the start date, start time, run duration, type (loaded or unloaded), interval, and repeat rate.

An exercise event can be temporarily disabled to prevent its execution and then re- enabled later using the enable/disable setting.

In the Util-Gen mode, the exercise function occurs on the standby source. In Gen-Gen mode, the standby source generator set is exercised.

In a three-source system, there are two generators on the standby transfer switch. The exercise function is programmed and controlled by the standby transfer switch. For a loaded exercise, the standby transfer switch schedule is synchronized with the preferred

transfer switch and the standby exercise occurs within The next scheduled exercise time and date are indicated on the main menu. (See Figure 1-7.)

the preferred transfer switch exercise period. This

allows either generator set to run under the load

designated by the utility exercise periods.

4.4.1 Setting the Exerciser

SeeFigure4-3andFigure4-4.

Exerciser Parameter Description

Event Number Each scheduled exercise is called an event. Up to 21 different exercise events can be set, each with different

Enable/Disable Enable the event to allow it to run as scheduled. Disable an event to prevent it from running. The event remains

Loaded/Unloaded A loaded exercise starts the generator set and transfers the electrical load from the normal source to the

settings for the parameters shown in this table.

on the calendar so that it can be enabled again at a later time. This allows you to temporarily prevent a scheduled exercise event from running, and then enable it again later without having to re-enter all the settings.

standby generator set. An unloaded exercise will start and run the generator set without transferring the load.

Interval Daily, weekly, monthly, or day/month. This setting works with the repeat rate to set the time interval between

Repeat Rate The repeat rate works with the interval to set the time interval between exercise runs. For example, if Day is

Duration Enter the exercise run duration in hours:minutes. For example, a run time of 00:30 will run the generator set for

Start Date Enter the date, month/date/year, of the first exercise event. Subsequent events will be scheduled based on the

Start Time Enter the desired start time of the exercise run in hours:minutes. The time settings range from 00:00 to 23:59,

exercise runs.

The day/month selection allows you to set the exerciser to run on the same day every month. For example, the exerciser can be set to run the first Sunday of every month. Use caution with the day/month selection. For example, selecting day/month on the 5th Friday of the month will cause the exerciser to run only during months that have five Fridays.

selected as the interval, and 5 is selected as the repeat rate, then the exercise will repeat every 5 days. Select a number between 1 and 12.

30 minutes. The maximum run time is 24 hours.

interval and repeat rate.

with 00:00=midnight.

Figure 4-3 Exerciser Settings

TP-6883 4/21 53Section 4 Setup

Set Exerciser

BY "Main

Exerciser Event ##

BY "Back

Exercise Event ##

Enable/Disable

Back Next

Exerciser Event ##

Loaded/Unloaded

Back Next

Exerciser Event ##

Interval Weekly

Back Next

Weekly Monthly Day/Month Daily

Exerciser Event ##

Repeat Rate 01

Back Next

Figure 4-4 Setting the Exerciser

1- 12

Exerciser Event ##

Duration H

Back Next

R:MM

Exerciser Event ##

Start Date M

Back Next

Exerciser Event ## Start Time H

Back Save

O/DD/YR

R:MM

TP-6883 4/2154 Section 4 Setup

4.5 Prime Power Run

The transfer switch can be used between two prime power sources (two generator sets). The prime power run feature allows the controller to sequence the usage of each generator set to equalize the run times. Prime power mode is not available for service entrance models.

Note: Follow the generator set requirements for prime

power operation and maintenance. Not all generator sets are approved for prime power applications; check the generator set documentation.

An external battery module is recommended for this type of application. See Section 7.2.2.

4.5.1 Prime Power Mode Setup

D In the Set System menu, set the source type to

Gen-Gen. See Section 4.11, Set System.

D Connect the engine start leads of the source 2

generator set to the ATS engine start leads. See the ATS Operation/Installation Manual for the engine start connection terminals.

generator set run duration times in days:hours:minutes (i.e. how long each generator set runs before transfer to the other generator set). See Figure 4-5.

D In the Prime Power Event menu, use the up arrow

button to switch between Start and Stop. Select Start and then press Save to save the duration settings and start the prime power sequence.

4.5.2 Prime Power Mode Operation

During a prime power run sequence, the main menu

displays a countdown of the run time remaining for the

generator set that is currently running.

The transition type selected in the Set System menu

determines the type of transfer between the two prime

power sources. For example, on closed-transition

model transfer switches, the transfer between sources

will be closed, resulting in no power interruption to the

load during transfer. Other transition types use a

break-before-make transfer that can cause a brief

interruption of power to the load.

Note: Only Model KCC and KBC transfer switches can

operate in closed-transition mode.

D Connect the engine start leads of the source 1

generator set to output 1. Connect to a different output on the main logic board or accessory I/O module if output 1 is not available. Assign the Source N Start Signal function to the output connected to the source 1 generator set engine start leads. See Section 4.9, Programmable Inputs and Outputs.

D Check the overfrequency and underfrequency pick

up and drop out settings for both sources, and adjust if necessary.

D Set the normal source engine start and engine

cooldown time delay settings.

D Navigate to the Set Prime Power Run menu. Enable

the prime power event and program the S1 and S2

Set Prime Power Run

BY "Main

Prime Power Event

Enable/Disable

Back Next

During a prime power sequence, the preferred source

selection alternates so that the generator set operating

at the time is designated as the preferred source.

Press the end button to start the other generator set and

transfer the load. The generator set run time may be

ended by pushing the end time delay button. This will

start the alternate source, transfer the source, and run

on the alternate source for the programmed period of

time. The first generator set will run for the programmed

engine cooldown time and then be signaled to stop.

To stop the prime power run sequence, enter the Set

menus (password required), navigate to the Set Prime

Power Run menu, Prime Power Event Sequence

Start/Stop. Use the up arrow button if necessary to

switch to Stop, and press Save.

Duration at Source1

??:??:?? DD:HH:MM

Back Next

Duration at Source2

??:??:?? DD:HH:MM

Back Next

Prime Power Event

Sequence: Start/Stop

Back Save

Figure 4-5 Set Prime Power Run Menu

TP-6883 4/21 55Section 4 Setup

4.6 Time Delays

4.6.1 Time Delays

The factory settings and adjustment ranges for the time delays are shown in Figure 4-6.

The engine start time delay and transfer time delays can prevent nuisance transfers caused by brief voltage dips or surges. The engine cooldown time delay holds the engine start contacts closed for a designated time after transfer to allow the generator set to run without load before shutting down.

transfers. The pre-transfer signals are active only when

both sources are available. The pre-transfer signals

overlap the transfer time delays (Xfr N>E and E>N).

The longer delay determines the time delay before

transfer. Uptonineloadscanbecontrolledwith

independent timing sequences for pre- and post-

transfer delays in either direction of transfer.

Current-based load control is also available.

Current-based load control uses the Load Disconnect,

Load Add Source1/Source2, and Load Remove

Source1/Source2 time delays. See Section 4.7.2 for

more information about the time delays used for

current-based load control.

4.6.2 Load Control Time Delays

Proceed to Section 4.7, Load Control, for more

information. The pre/post-transfer load control time delays allow

loads to be sequenced on and off prior to and following

Time Delay Description Description/Note Default Time Adjustment Range

Engine Start, Source S2 Source S2 - Util/Gen and Gen/Gen modes

Engine Start, Source S1 Source S1 - Use for Gen/Gen mode

Engine Cooldown, Source S2 Source S2 - Util/Gen and Gen/Gen modes

Engine Cooldown, Source S1 Source S1 - Gen/Gen mode

Xfr Pref>Stby Transfer delay, preferred to standby

Xfr Stby>Pref Transfer delay, standby to preferred

Xfr Off>Stby Time in the OFF position (Preferred to Standby for

Xfr OFF>Pref Time in the OFF position (Standby to Preferred for

Fail to Acquire Pref If the preferred source does not reach acceptable

Fail to Acquire Stby If the standby source does not reach acceptable

Fail to Synch (found in the Set Sources menu)

In-Phase Xfr Fail (found in the Set Sources menu)

Load # Disc N>E Disconnect load before-transfer to s tandby source.

Load # Rec N>E Reconnect load after-transfer to standby source. Used

Load # Disc E>N Disconnect load before-transfer to preferred source.

Load # Rec E>N Reconnect load after-transfer to preferred source.

Load # Add Source1/Source2 For current-based load control. See Section 4.7.2.

Load # Remove Srce1/Srce2 For current-based load control. See Section 4.7.2.

* The optional external battery module allows extended engine start time delays from 0- 60 min.

programmed transition models only)

voltage and stabilize within the allowed time, the Fail to Acquire Preferred Source fault is activated.

voltage and stabilize within the allowed time, the Fail to Acquire Standby Source fault is activated.

For closed-transition models only. Operates when two sources are available. If the sources do not synchronize before the Fail to Sync time delay expires, the programmed- transition override function operates. See Section 4.11.

For in-phase monitoring: the time allowed for the two sources to come into synchronization within specified phase angle before a Fail to Sync fault is activated. See Section 4.8.

Used for time-based and current-based load control. See Section 4.7.

for time-based load control. See Section 4.7.

Used for time-based and current-based load control. See Section 4.7.

Used for time-based load control. See Section 4.7.

3sec

5sec

2sec

3sec

15 min

1sec 1 sec. - 60 min

1min

1min 10 seconds - 15 min

30 sec

0sec

0sec 0- 60 min

0- 6 sec*

0- 60 min

Figure 4-6 Time Delay Settings

TP-6883 4/2156 Section 4 Setup

4.6.3 Set S1 Time Delays

Set S1 Time Delays

BY"Main

Programmed-transition models only

SetS1TimeDelays

Engine Start

BY "Back

SetS1TimeDelays

Eng Cooldown

BY "Back

SetS1TimeDelays

Xfr Pref>Stby

BY "Back

SetS1TimeDelays

Xfr Off>Stby

BY "Back

SetS1TimeDelays

Fail to Acquire Pref

BY "Back

External Battery

Yes /No

Back " Save

Eng Cooldown

?:??

Back Save

Xfr Pref>Stby

?:??

Back Save

Xfr Off>Stby

?:??

Back Save

Fail to Acquire Pref

Enable/Disable

Back " Save

Engine Start

?? : ??

Back Save

Fail to Acquire Pref

?:??

Back Save

Load Control Mode

Mode

Loads to Control: #

BY "Back

Set S1 Time Delays

Time-based load

Time-Based Control

control only

BY "Back

See the next page for currentbased load control menus for S1.

SetS1TimeDelays

Load Control Mode

None/Time/Current

Back " Save

Time-Based Control

Load Control #?

BY "Back

SetS1TimeDelays

Loads to Control:?

Back Save

Load #? Disc N>E

??:??

Back Next

Load #? Rec E>N

?:??

Back Save

TP-6883 4/21 57Section 4 Setup

Current-Based Load Control M enus Continued from Previous Page:

SetS1TimeDelays

Current-Based Control

Load Disc N>E

BY "Back

Current-Based Control

Load Control Source1

BY "Back

SetS1TimeDelays

Current-Based Control

Load #? Disc N>E

BY "Back

Current-Based Control

Source1LoadCtrl#

BY "Back

Load #? Disc N>E

??:??

Back Save

Load #? Add Source1

??:??

Back Next

Current-Based Control Load #? Add Source1

Priority : ?

Back Next

Load #? Remove Src1

??:??

Back Next

Current-Based Control

Load #? Remove Src1

Priority : ?

Current-Based Control

Set Hi Current Level

Load Remove Source1

BY "Back

Current-Based Control

Set Lo Current Level

Load Add Source1

BY "Back

Back Next

Current-Based Control

Source1 Load Cntrl#?

Enable/Disable

Back Save

Set Hi Current Level

Amps: ????

Back Save

Set Lo Current Level

Amps: ????

Back Save

TP-6883 4/2158 Section 4 Setup

4.6.4 Set S2 Time Delays

Set S2 Time Delays

BY"Main

Programmed-transition models only

SetS2TimeDelays

Engine Start

BY "Back

SetS2TimeDelays

Eng Cooldown

BY "Back

SetS2TimeDelays

Xfr Stby>Pref

BY "Back

SetS2TimeDelays

Xfr Off>Pref

BY "Back

SetS2TimeDelays

Fail to Acquire Stby

BY "Back

External Battery

Yes /No

Back " Save

Eng Cooldown

?:??

Back Save

Xfr Stby>Pref

?:??

Back Save

Xfr Off>Pref

?:??

Back Save

Fail to Acquire Stby

Enable/Disable

Back " Save

Engine Start

?? : ??

Back Save

Fail to Acquire Stby

?:??

Back Save

Load Control Mode

Mode

Loads to Control: #

BY "Back

SetS2TimeDelays

Time-based load

Time-Based Control

control only

BY "Back

See the next page for currentbased load control menus for S2.

SetS2TimeDelays

Load Control Mode

None/Time/Current

Back " Save

Time-Based Control

Load Control #?

BY "Back

SetS2TimeDelays

Loads to Control:?

Back Save

Load #? Disc E>N

??:??

Back Next

Load #? Rec N>E

?:??

Back Save

TP-6883 4/21 59Section 4 Setup

Current-Based Load Control M enus Continued from Previous Page:

SetS2TimeDelays

Current-Based Control

Load Disc E>N

BY "Back

Current-Based Control

Load Control Source2

BY "Back

SetS2TimeDelays

Current-Based Control

Load #? Disc E>N

BY "Back

Current-Based Control

Source2 Load Ctrl #

BY "Back

Load #? Disc E>N

??:??

Back Save

Load #? Add Source2

??:??

Back Next

Current-Based Control Load #? Add Source2

Priority : ?

Back Next

Load #? Remove Src2

??:??

Back Next

Current-Based Control

Load #? Remove Src2

Priority : ?

Current-Based Control

Set Hi Current Level

Load Remove Source2

BY "Back

Current-Based Control

Set Lo Current Level

Load Add Source2

BY "Back

Back Next

Current-Based Control

Source2 Load Cntrl#?

Enable/Disable

Back Save

Set Hi Current Level

Amps: ????

Back Save

Set Lo Current Level

Amps: ????

Back Save

TP-6883 4/2160 Section 4 Setup

4.7 Load Control

The controller allows control of up to 9 separate loads. Two load control modes allow selected loads to be disconnected and reconnected to the source:

Note: The load control setup parameters are found in

the Set S1 Time Delays and Set S2 Time Delays menus. See Section 4.6.3 and Section 4.6.4 for thetimedelaymenus.

D Time-based load control adds and removes loads

according to a timed sequence before and after transfer.

D Current-based load control adds or removes loads

according to the current measured through the transfer switch. This mode allows load control based on power usage.

The load control function is not activated if the controller detects no available source. The pre-transfer signals are active only when both sources are available; for example, during loaded test, loaded exercise, or programmed transfers for peak shave operation when the transfer is controlled.

Note that the load control can be set up to operate during transfer to Source1 and/or Source2. Your application may require load control during transfer to one source (e.g. a generator set) but not the other source (e.g. the utility).

Twotypes of load control are available: time-based load control and current-based load control.

4.7.1 Time-Based Load Control

The time-based load control function allows selected

loads to be disconnected from the source before

transfer and reconnected to the source after transfer at

different time intervals. The loads can be connected and

disconnected at different times for each source. The

pre-transfer signals are active only when both sources

are available.

When the load control function is activated, the contacts

open a programmed length of time before transfer to

allow controlled disconnection of selected loads. After

transfer, the contacts remain open for a programmed

length of time and then close to allow controlled

application of selected loads. For example, large motor

loads such as an air conditioner can be delayed to start

after other essential loads have been transferred.

The pre-transfer signals overlap the preferred-to-

standby and the standby-to-preferred time delays. See

Figure 4-7. If any of the pre -transfer load disconnect

time delays are longer than the transfer time delay, the

longest delay will control the time delay before transfer.

Example 1: The transfer time delay is longer than the load control pre-transfer time delays.

Time, in

01:002:003:00

1:00

minutes

Transfer

Time Delay

Load 2

Disconnect

Load 1

Disconnect

Transfer

Load 1

Reconnect

Example 2: One or more load control pre-transfer time delays are longer than the transfer time delay.

Time, in

01:002:003:00

1:00

minutes

Load 2

Disconnect

Transfer

Time Delay

Load 1

Disconnect

Transfer

Load 1

Reconnect

Figure 4-7 Time-Based Load Control and Transfer Time Delays

2:00

Load 2

Reconnect

2:00

Load 2

Reconnect

6446

TP-6883 4/21 61Section 4 Setup

Time-Based Load Control Setup

The Load # Disc N>E pre-transfer time delay disconnects loads a programmed time before transfer from Normal to Emergency. The pre-transfer delays operate during loaded test, loaded exercise, or programmed transfers for peak shave operation when the transfer is controlled.

The Load # Reconn E>N post-transfer time delay reconnects loads a programmed time after transfer to Normal. The post-transfer time delay allows delayed or staggered addition of selected loads to avoid starting numerous large motors or other large loads at the same time. Staggering the loads can minimize voltage dips as large loads come online.

4. In the Set S1 Time Delays menu, select Time as the load control mode.

5. Enter the number of loads to control, which is equal to the number of loads connected to outputs in step 1.

6. Use the Set S1 Time Delays menu to set the following associated time delays.

a. Load # Disc N>E: Enter the pre-transfer time

delay in Minutes: seconds, up to 60 minutes.

b. Load # Reconn E>N: Enter the post-transfer

time delay in Minutes: seconds, up to 60 minutes.

The Loads to Add setting is the number of loads that have been connected to load control outputs for pre-transfer disconnect and delayed reconnect. Up to 9 separate loads can be connected.

Setting up the load control function requires the following steps:

1. Connect each selected load to an output terminal on the main logic board or one of the input/output modules. The high power module accessory is available for high voltage or high current loads.

2. Use the Set Inputs/Outputs menu to assign the connected output to one of the load control outputs 1- 9. See Section 4.9.

3. Navigate to the Set S1 Time Delays or Set S2 Time Delays menu. See Section 4.6.3 and Section 4.6.4 for the time delay menus.

Note: Save the setting after each step and then

use the Back and arrow buttons to navigate to the next setting as needed.

c. Loads to Add: Enter the number of loads that

have been connected to load control outputs, from 1 to 9.

7. If time -based load control is r equired for source 2, go to the Set S2 Time Delays menu and repeat steps 3 through 6 for source 2.

TP-6883 4/2162 Section 4 Setup

4.7.2 Current-Based Load Control

Current-based load control allows the addition and removal of loads based on the measured current through the transfer switch. This feature requires an optional current sensing kit, which includes appropriately rated current transformers (CTs) and wiring designed for your transfer switch. See Section 7.4, Current Sensing.

Current-based load control can be enabled for one or both sources. The feature incorporates high and low current setpoints for either source in amps. The user can designate up to 9 outputs for current-based or time-based load control.

Non-critical loads can be removed during periods of high power usage. When the current exceeds a high current limit, loads are removed in sequence according to their priority settings until the current falls below the high current limit. If the current level drops below the low current limit, loads are added in order of their priority.

4. Enter the number of loads to control, which is equal to the number of loads connected to outputs in step 1.

5. Navigate to the Current-Based Control menu under Set S1 Time Delays or Set S2 Time Delays to set the following parameters for each connected load.

a. Load Disc N>E (or E>N): Set the load

disconnect time delay before transfer to source E (or Source N). See Figure 4-8. Save the setting.

b. Load Ctrl # Source 1: Step through each load

connected to a load control output and set the following parameters.

c. Load # Add Source1: Enter the time to wait

before the load is added. This prevents nuisance changes caused by brief current dips. SeeFigure4-8.

The add priority and remove priority settings are set separately and can be different for the same load. Add Priority #1 loads are added first. Remove Priority #1 loads are removed first.

Example: If you have four loads, with one load that should be added first and removed last, set Add Priority = 1 and Remove Priority = 4 for that load. Prioritize the other loads according to the order in which they should be added and removed.

Adjustable time delays prevent load addition and removal caused by momentary current variations. There are three time delays associated with each load. See Figure 4-8 for time delays and other load control parameters.

Current-Based Load Control Setup Procedure:

1. Connect each selected load to an output terminal on the main logic board or one of the input/output modules. The high power module accessory is available for high voltage or high current loads.

2. Use the Set Inputs/Outputs menu to assign the connected output to one of the load control outputs 1- 9. See Section 4.9.

3. In the Set S1 or Set S2 Time Delays menu, select Current as the load control mode.

d. Load # Add Source1 (Source2) Priority: Assign

a priority to each load. This number will be used to determine the order in which loads are added if the current drops below the low limit.

e. Load # Remove Src1 (Src2): Enter the time to

wait before the load is removed. This prevents nuisance changes caused by brief current spikes. See Figure 4-8.

f. Load # Remove Src1 (Src2) Priority: Assign a

priority to each load. This number will be used to determine which loads are removed first if the current rises above the high limit. (The priority 1 load is removed first.)

g. Source1 Load Ctrl # Enable/Disable: Toggle to

Enable and press Save to enable load control for the selected load.

6. Set Hi Current Level, Load Remove Source1/Source2: Set the high current level. If the current rises above this limit, loads will be removed in order of their remove priority settings until the current falls back to an acceptable level.

7. Set L o Current Level, Load Add Source1/Source2: Set the low current level. If the current drops below this level a nd some loads are not connected, loads will be added in the order of their add priority settings. (The add priority and remove priority settings for a load may be different.)

TP-6883 4/21 63Section 4 Setup

Parameter Description Adjustment Range

Outputs

Load Control Mode

Loads to Control

High Current Level

Low Current Level

Load Control # Enable/Disable

Add Priority

Remove Priority

Disconnect (Disc) Time Delay

Load Add Source1 or Source2

Load Remove Src1 or Src2

Assign Load Control Out # to each connected load output. Use the Set Inputs/Outputs menu. See Section 4.9, Programmable Inputs and Outputs.

Select Current for current-based load control. See Section 4.7.2 for more information.

Enter the number of loads to be controlled. Each load must be connected to a separate output on the main logic board or accessory I/O module.

If the current rises above this limit, loads will be removed in order of their remove priority settings until the current falls back to an acceptable level.

If the current drops below this level and some loads are not connected, loads will be added in the order of their add priority setting.

Enable or disable current-based load control for each load on each source.

Assign a priority for the addition of each load when the current level falls below the low current level. Add Priority #1 loads are added first. The add priority and remove priority for a given load canbedifferent.

Assign a priority for the removal of loads when the current level rises above the high current level. Remove priority #1 loads are removed first. The add priority and remove priority for a given load can be different.

Time delay after a transfer signal to allow disconnection of selected loads before transfer to the other source. (Operates when both sources are present.)

Time delay after the current falls below the low limit until the load is added. Prevents load add caused by a momentary drop in the current.

Time delay after the current rises above the high limit until the load is removed. Prevents load removal caused by a momentary rise in the current.

Load Control Out 1- 9

None/Time/Current

1- 9

0- 4000 Amps

Enable or Disable

1- 9

00:00 to 59:59

min:sec

00:00 to 59:59

min:sec

00:00 to 59:59

min:sec

Figure 4-8 Current-Based Load Control Parameters

TP-6883 4/2164 Section 4 Setup

4.8 Set Sources

4.8.1 Phase Rotation

The Phase Rotation menu appears only if a three-phase source is selected. (See Set Number of Phases later in the Set Sources menus for the Normal and Emergency sources.)

Select ABC, BAC, or disabled. Phase rotation can be disabled for programmed-transition models or standard-transition models in applications that do not have phase-sensitive loads. Phase rotation cannot be disabled on closed-transition models.

4.8.2 In-Phase Monitor

Standard-Transition Models

The in-phase monitor can be enabled or disabled for standard-transition models. The in-phase monitor operates prior to transfer when both sources are available. Transfer is inhibited while both sources are greater than 2 cycles apart. If the connected source falls below 70% of its nominal voltage rating, the in-phase monitor terminates and allows transfer.

The synchronism window has a default value of 5_ and is adjustable from 15_ to 5_ before synchronism only. The in-phase monitor feature can be enabled for Util-Gen and Gen-Gen modes of operation. In Util-Util mode, it is assumed that both sources are always in phase with each other, and immediate transfer occurs when in-phase monitoring is enabled.

Programmed-Transition Models

The in-phase monitor is disabled for programmedtransition models.

Closed-Transition Models

The in-phase monitor is always enabled for closedtransition models. Synchronization settings for closedtransition models include voltage differential, frequency differential, angle differential, and the Fail to Sync time delay . Transfer is inhibited when any of the differential readings between the two sources are outside the set limits. See Figure 4-9.

Adjustment

Parameter

Voltage Differential

Frequency Differential

Angle Differential

Fail to Sync time delay

Range

0- 5% 5%

0- 0.3 Hz 0.1 Hz

0- 10 degrees 10 degrees

10 sec- 15 min. 1min.

Default Setting

Figure 4-9 Synchronization Settings for Closed-

Transition Switches

4.8.3 Preferred Source Selection

The preferred source selection function allows selection of either Source N or Source E as the preferred source.

Note: The alarm module accessory must be installed

for this function to operate. See Section 7.2.3.

The transfer switch seeks and transfers to the preferred source whenever it is available. Source N is always the source connected to the Normal side of the transfer switch, and Source E is always connected to the Emergency side. Generator engine start relays are assigned to the source (Source N or Source E). The engine start relays do not change when the preferred source selection changes. This prevents the need to change the wiring of the engine start relay(s) when the preferred source changes.

Time Delays and Source Parameters. Engine start relays and time delays, source voltage and frequency trip points, and load shed time delays are assigned to the source (N or E). They do not change assignment when the preferred source selection is changed.

Note: Source N is always connected to the Normal side

of the transfer switch, and Source E is always connected to the Emergency side.

Other time delays are assigned to the source function (preferred or standby). System parameters that are assigned to the function automatically change source when the preferred source selection changes. Figure 4-10 shows which parameters are assigned to the source and which are assigned to the f unction. The last two columns of the table show the effect of the preferred source selection on each parameter or time delay.

TP-6883 4/21 65Section 4 Setup

Preferred Source Selection

Item Assignment

Source N generator engine start relay Source N N

Source E generator engine start relay Source E E

Source N engine start time delay Source N N

Source E engine start time delay Source E E

Source N engine cooldown time delay Source N N

Source E engine cooldown time delay Source E E

Source N voltage and frequency trip points Source N N

Source E voltage and frequency trip points Source E E

In-phase monitor sync Source E E

Pre-transfer to source N Source N N

Pre-transfer to source E Source E E

Post-transfer to source N Source N N

Post-transfer to source E Source E E

Preferred-to-standby time delay Function NtoE EtoN

Standby-to-preferred time delay Function EtoN NtoE

Failure to acquire standby source Function E N

Off-to-standby time delay (programmed-transition only) Function Off to E Off to N

Off-to-preferred time delay (programmed-transition only) Function Off to N Off to E

Note: Source N is connected to the Normal side of the transfer switch, and Source E is connected to the Emergency side.

Normal Emergency

Figure 4-10 Preferred Source Selection Effect on System Parameters and Time Delays

TP-6883 4/2166 Section 4 Setup

4.8.4 System Voltage and Frequency

available when its voltage and frequency are within the range of dropout settings. The debounce time prevents

For each source, set the number of phases, nominal voltage, and nominal frequency (50 or 60 Hz). Then proceed to set the pickup and dropout settings.

nuisance transfers caused by brief voltage spikes and dips. If the voltage or frequency of the active source is outside the acceptable range f or a length of time longer than the debounce time, the system attempts to transfer

4.8.5 Voltage and Frequency Pickup and Dropout Settings

The controller senses the voltage on both sources with

theloadtothealternatesource.

See Figure 4-11 for default settings and adjustment ranges.

an accuracy of ±0.5%. A source is considered

Description Settings Default Setting Adjustment Range

Normal source voltage

Emergency source voltage

Normal source frequency (Gen-Gen mode of operation only)

Emergency source frequency

Under voltage dropout 90% 75% to 98% of Pickup

Under voltage pickup 90% 85% to 100% of Nominal

Over voltage dropout 115% (110% for

Over voltage pickup 95% 95 to 100% of Dropout

Unbalance enable Enable Enable or disabled

Unbalance drop out 20% 5% to 20%

Unbalance pick up 10% 3% to 18%

Debounce time 0.5 seconds 0.1 to 9.9 seconds

Under voltage dropout 90% 75% to 98% of Pickup

Under voltage pickup 90% 85% to 100% of Nominal

Over voltage dropout 115% (110% for

Over voltage pickup 95% 95 to 100% of Dropout

Unbalance enable Enable Enable or disabled

Unbalance drop out 20% 5to20%

Unbalance pick up 10% 3to18%

Debounce time 0.5 seconds 0.1 to 9.9 seconds

Under frequency dropout 99% 95% to 99% of Pickup

Under frequency pickup 90% 80% to 95% of Nominal

Over frequency dropout 101% 101% to 115% of Pickup

Over frequency pickup 110% 105% to 120% of Nominal

Debounce time 3 seconds 0.1 to 15 seconds

Under frequency dropout 99% 95% to 99% of Pickup

Under frequency pickup 90% 80% to 95% of Nominal

Over frequency dropout 101% 101% to 115% of Pickup

Over frequency pickup 110% 105% to 120% of Nominal

Debounce time 3 seconds 0.1 to 15 seconds

600 V systems)

106% to 135% of Nominal (maximum 690 Volts)

106% to 135% of Nominal (Except 600 V Apps)

Figure 4-11 Pickup and Dropout Settings

TP-6883 4/21 67Section 4 Setup

4.8.6 Set Sources

Set Sources

BY"Main

Set Phase Rotation

BY"Back

???Rotation

Save Back

Three-phase models only. ABC BAC Disable

Standard transition

models only

Closed transition

models only

Set Inphase Monitor

Enable/Disable

BY"Back

Set Inphase Monitor

Angle

BY"Back

Set Inphase Monitor

In Phase Xfr Fail

BY "Back

Set Synchronization

Voltage Differential

BY"Back

Set Synchronization

Frequency Differential

BY"Back

Set Synchronization

Angle Differential

Enable/Disable

Save Back

? ?Degrees

Back Save

In Phase Xfr Fail

Enable/Disable

Back " Save

? ? Percent

Back Save

? ?Hz

Back Save

? ?Degrees

In Phase Xfr Fail

?:??

Back Save

BY"Back

Set Fail to Sync

BY "Back

Alarm module

required

Set Preferred Source

BY"Back

Source Setup Menus Continued on Next Page

Back Save

Fail to Sync

Enable/Disable

Back " Save

Preferred Source

Normal/Emergency

Save Back

Fail to Sync

?:??

Back Save

TP-6883 4/2168 Section 4 Setup

Source Setup Menus Continued from Previous Page:

Set Normal Source

Emergency

BY"Back

Note: The same menus are available

for the Emergency source.

Normal Source

Set Number of Phases

BY"Back

Normal Source

Set Voltage

BY"Back

Normal Source

Set Frequency

BY"Back

Normal Source

Set Under Voltage

Pickup

BY"Back

Normal Source

Set Under Voltage

Dropout

BY"Back

Normal Source

Set Over Voltage

Pickup

BY"Back

?Phase

Save Back

Set Voltage

?? VAC

Back Save

Set Frequency

Back Save

Pickup

??? % of Nominal

85- 100%

Save Back

Dropout

??? % of Pickup

75- 98%

Save Back

Pickup

??? % of Dropout

95- 100%

Save Back

Three-phase only

Normal Source

Set Over Voltage

Dropout

BY"Back

Normal Source

Set Voltage Debounce

BY"Back

Normal Source

Voltage Unbalance

Enable/Disable

BY"Back

Normal Source

Voltage Unbalance

Pickup

BY"Back

Normal Source

Voltage Unbalance

Dropout

BY"Back

Dropout

??? % of Nominal

106- 135%

Save Back

Debounce Time

?.? Seconds

0.1 - 9.9 Seconds

Save Back

Voltage Unbalance

Enable/Disable

Save Back

Pickup

??%

3- 18%

Save Back

Dropout

??%

5- 20%

Save Back

Source Setup M enus Continued on Next Page

TP-6883 4/21 69Section 4 Setup

Source Setup Menus Continued from Previous Page:

Normal Source

Set Under Frequency

Pickup

BY"Back

Normal Source

Set Under Frequency

Dropout

BY"Back

Normal Source

Set Over Frequency

Pickup

BY"Back

Normal Source

Set Over Frequency

Dropout

BY"Back

Normal Source

Set Freq Debounce

BY"Back

Pickup

??? % of Nominal

80- 95%

Save Back

Dropout

??? % of Pickup

95- 99%

Save Back

Pickup

??? % of Nominal

105- 120%

Save Back

Dropout

??? % of Pickup

101- 115% Nominal

Save Back

Debounce Time

?.? Seconds

0.1 - 15.0 Seconds

Save Back

TP-6883 4/2170 Section 4 Setup

4.9 Inputs and Outputs

Inputs and outputs are unassigned (except as noted in Figure 4-13) until t he installer or operator assigns a function to the I/O.

The programmable inputs and outputs can be assigned to the functions shown in Figure 4-14 and Figure 4-15. Programmable inputs and outputs on the controller and input/output (I/O) modules can be assigned in several ways:

D Using the controller’s keypad and display; see

Figure 4-12.

D Using a PC with Kohlerr SiteTecht software; see

TP-6701, SiteTech Software Operation Manual, for instructions.

D Over Modbus; see TP-6113, Modbus Protocol

Manual, for Modbus registers.

verifying the transfer switch input and output connections.

4.9.1 Controller Inputs and Outputs

There are two programmable inputs and two programmable outputs on the controller. Additional inputs and outputs are available through the installation of optional input/output modules.

See the Installation Section for connection information for main logic board inputs and outputs.

4.9.2 Input/Output Modules

Input/output (I/O) modules are optional accessories. The standard I/O Module has two inputs and six outputs. The high-power I/O module has two inputs and three outputs. The I/O modules specifications are shown in Section 7.2.1.

Each programmable input and output requires a connection to the transfer switch. Do not change the programmable input/output assignments without

Set Inputs/Outputs

BY"Main

Press the right arrow button to enter the Set Inputs/Outputs menu.

Set

Main Board I/O

BY"Back

Set

Auxiliary I/O

BY"Back

Main Board I/O

Set Inputs

BY"Back

Main Board I/O

Set Outputs

BY"Back

Module #?

Type ### Addr #

Status: #######

BY"Back

Main Board I/O

BY"Back

Main Board I/O

BY"Back

See Section 7.2.1 for I/O module connection information.

Input #?

Outputs #?

Module ## Set Inputs

Input ##

Function

????????

Save Back

Output ##

Function

????????

Save Back

Module ##

Input #?

BY"Back

Input ##

Function

????????

Save Back

Output ##

Function

????????

Save Back

Module #?

Uninstall Module?

Yes/No

Save Back

Press the down arrow button to step to the next module.

Module ##

Set Outputs

BY"Back

Module ## Output #?

BY"Back

Figure 4-12 Assigning Inputs and Outputs

TP-6883 4/21 71Section 4 Setup

4.9.3 Input Functions

Available input functions are shown in Figure 4 -14. Some inputs will trigger an indicator LED on the user interface and/or display a message on the LCD menu when they are activated.

All of the inputs may be assigned to either one or both of thecommonalarms.

The transfer switch then transfers to Source N if it is available, executing the applicable time delays.

Remote Monitored Inputs. There are four remotely monitored input functions. These functions can be assigned to any of the inputs on either the main logic board or standard/high voltage/high current I/O b oards. The state of any or all of these inputs can be monitored using SiteTecht software or over Modbus.

Note: Some models have factory-set input functions as

shown in Figure 4-13. Do not change these settings.

Model or Factory-Installed Accessory

Bypass/isolation Models Bypass Contactor Disable

Service Entrance Models Service Disconnect

Load Shed Kit Forced Transfer to OFF

Main Board Input Factory Setting

Figure 4-13 Factory Set Inputs

Service Disconnect Input. Service Entrance (KEP)

models have one input factory-set to Service Disconnect. Do not attempt to change this setting.

Forced Transfer to OFF Input. This function requires theloadshedaccessoryinstalledonaprogrammedtransition or closed-transition model transfer switch. (Exception: The load shed accessory is NOT required for model KEP Service Disconnect to O FF models.) Activation of this input signals the transfer switch to transfer immediately from Source E to the OFF position.

Peak Shave/Area Protection Input. Starts the generator set and transfers to the standby source, ignoring the engine start time delay. The pre/posttransfer, delayed-transition time delays, and in-phase monitor will be active if enabled.

When the peak shave signal is removed, the load transfers back to the preferred source. The pre/posttransfer, delayed-transition, and engine cooldown time delays, along with the in-phase monitor if enabled, will be executed.

If the s tandby source is lost during peak shave, the unit will transfer back to the preferred source.

See Section 4.11.9 for information about the Peak Shave TD Bypass.

Remote End Time Delay Input. Allows a r emote signal to end an active time d elay. The signal ends only the time delay that is active at the time the signal is applied. Repeated signals are required to end additional time delays. Does not end the programmed-transition time delays or an exerciser run.

Programmable Inputs * LED

Bypass Contactor Disable* None Flashing Bypass Contactor Disable *

Forced Transfer to OFF* (programmed-transition or closed-transition models; requires load shed accessory)[

Inhibit Transfer* (maintenance mode) None Flashing Inhibit Transfer

Low Battery Voltage Steady None Low Battery Voltage

Peak Shave Mode None None Peak Shave

Remote End Time Delay None None None

Remote Common Alarm Steady None Remote Common Alarm

Remote Test None None Normal test sequence menus. See Section 1.7.

Remote Monitor In #1- 4 None None None

Service Disconnect* None Flashing Service Disconnected

Three-Source System Disable None None None

* See Figure 4-13 for factory-set input functions for selected models. Do not change the factory settings. [ The load shed accessory is not required on model KEP Service Disconnect to OFF models.

None Flashing Forced Off

Figure 4-14 Available Programmable Inputs

LED

Display Message

TP-6883 4/2172 Section 4 Setup

Remote Test Input. Activating the input starts a test, and deactivating the input stops the test. Tests follow the sequence described in Section 1.7. A remote test can be stopped locally, if necessary, by pressing the END TEST button on the controller.

MPAC firmware versions before 1.10: If a local test is already running, activating the remote t est input will stop the local test.

MPAC firmware versions 1.10 or higher: If a local test is already running, activating the remote test input will NOT stop the local test.

The default type for a remote test is unloaded. There are several ways to change the remote test type:

D Use the Set System, Remote Test Loading menu.

D Use a computer and Kohler SiteTech Software to set

the Remote Test Loaded parameter.

D Set the remote test type over Modbus.

4.9.4 Output Functions

Output functions are shown in Figure 4-15. Information about selected output functions is shown below. Refer to the section number shown in Figure 4-15 for more information about the output function.

Note: On Service Entrance (KEP) models, one output is

factory set and not available for customer use.

Service Disconnect Gen Cntrl. Service Disconnect (KEP) models that use the Service Disconnect to OFF mode of operation have one output set to Service Disconnect Gen Cntrl. This output is factory-set and should not be changed. See Section 4.11.4 for more information about service disconnect modes of operation.

In-Phase Monitor Sync Output. Is activated when the in-phase transfer fail or fail to sync time delays expire, indicating that the sources did not synchronize in the allotted time. See Section 4 .8.2 for more information about the in-phase monitor. For closed-transition models, customer-supplied equipment used to boost the generator set can be connected to this output. See the transfer switch installation manual for output connection information.

Note: The In-phase Transfer Fail and/or Fail to Sync

time delays are set in the Set Sources menu. See Section 4.8.

See

Programmable Output Type

3 Src Sys Disabled Control 4.12

Alarm Silenced Monitor 7.2.3

Audible Alarm Control 7.2.3

Aux Switch Fault Fault 1.10

Aux Switch Open Fault 1.10

CommonAlarmActive(1and2) Fault 4.10

Contactor in OFF position Monitor —

Contactor in Preferred Position Monitor —

Contactor in Source E Position Monitor —

Contactor in Source N Position Monitor —

Contactor in Standby Position Monitor —

Exerciser Active Monitor 4.4, 2.2.2

Fail to Acquire Preferred Fault 1.10

Fail to Acquire Standby Fault 1.10

Fail to Transfer Fault 1.10

Fail to Open Source1 Fault —

Fail to Close Source1 Fault —

Fail to Open Source2 Fault —

Fail to Close Source2 Fault —

I/O Module Lost Comm Fault 1.10

In-Phase Monitor Sync Control 4.9.4, 4.8.2

Load Bank Control Active Control 4.9.4

Load Control Active Monitor 4.7.1

Load Control Out 1- 9 Control 4.7.1

Low Battery (external battery) Monitor 7.2.2

Non-Emergency Transfer Monitor —

Not in Auto Monitor 1.3.4

Peak Shave Active Monitor 4.11.9

Preferred Source Available Monitor 4.8.5

MBUS Control RDO #1- 4 Control 4.9.4

Service Disconnect Gen Cntrl * Control 4.9.4

Source E (Phase) Rotation Error Fault —

Source E Loss of Phase Fault —

Source E Over Frequency Fault 4.8.5

Source E Over Voltage Fault 4.8.5

Source E Start Signal Control 4.9.4

Source E Under Frequency Fault 4.8.5

Source E Under Voltage Fault 4.8.5

Source E Voltage Unbalance Fault 4.8.5

Source N (Phase) Rotation Error Fault —

Source N Loss of Phase Fault —

Source N Over Frequency Fault 4.8.5

Source N Over Voltage Fault 4.8.5

Source N Start Signal Control 4.9.4, 4.12

Source N Under Frequency Fault 4.8.5

Source N Under Voltage Fault 4.8.5

Source N Voltage Unbalance Fault 4.8.5

Standby Source Available Monitor 4.8.5

Test Mode Active Monitor 1.7

* Factory set; do not change.

Section

Figure 4-15 Available Programmable Outputs

TP-6883 4/21 73Section 4 Setup

Load Control Output, 1- 9. Connect up to nine loads that can b e connected or disconnected using either time-based or current-based load control. Assign load control outputs 1 through 9 to the corresponding outputs on the main board or I/O modules, and then go to the Time Delay setup menu to set up the load control sequences. See Section 4.6 for the Time Delay setup menus, and Section 4.7 for more information about load control.

MBUS-Controlled Outputs. There are four Modbus-Controlled Output functions. These four functions can be assigned to any of the outputs on either the main logic board or the optional I/O boards. The state of any or all of these four functions can be controlled and monitored via Modbus messages only.

Source N Engine Start Signal. Use if Source N is a generator set, especially for three-source systems or prime power mode. See Section 4.12 for more on three-source systems. See Section 4.5 for more about prime power mode.

Source E Engine Start Signal. Analternativetothe engine start contacts on the transfer switch.

Load Bank Control Active. The load bank control output is a C form contact that can be used to apply a load to the generator set during an unloaded exercise or test. The load bank control output is active during each unloaded test and unloaded exercise. See Figure 4-16.

The load bank control output closes or opens a contact that can be used to signal the load bank controller to operate. Connect the normally open or normally closed output contact to the load bank controller as required for proper operation. Refer to the connection instructions provided by the load bank manufacturer.

If the Normal source is lost during an exercise period, the load bank control output is deactivated to remove the load bank and allow the transfer of the building load to the emergency source.

Start unloaded test or exercise

Generator set starts

Emergency (standby)

source available

Load bank control

output is active

Load bank applied

Normal source lost?

End unloaded

exercise or test

Load bank control output deactivated

Load bank removed

Engine cooldown

Generator set stops

YES

Load bank control

output deactivated

Load bank removed

Transfer load to

emergency source

6447

Figure 4-16 Load Bank Control Sequence

4.9.5 User-Defined I/O Descriptions

The controller can store a 19-character string description for each of the 9 user controllable/monitored I/Os. Use a personal computer with Kohlerr SiteTecht software to enter descriptions. Descriptions are only available for reading and writing through SiteTech and over Modbus. Descriptions are not used by the controller.

TP-6883 4/2174 Section 4 Setup

4.10 Common Alarms

4.10.1 Common Alarm Output

Use the Common Alarms setup menu to assign events to the controller’s common alarm groups. See Figure 4-17 for a list of functions that can be assigned to thecommonalarmandtheaudiblealarm. See Figure 4-18 for the common alarms setup menus.

Alarm Descriptions

Aux Switch Fault*

Aux Switch Open*

Contactor in Off

Contactor in Pref

Contactor in Src E

Contactor in Src N

Contactor in Stby

Exerciser Active

Fail to Acquire Pref *

Fail to Acquire Stby *

Fail to Transfer *

IPM Synching

Load Bank Ctl Active

Load Control Active

External Battery Low *[

Non-Emergency Trans

Not in Auto

Peak Shave Active [

Pref Src Available

Remote Common Alarm *

Remote Monitor In #1- 4

Src E Loss of Phase

Src E Over Freq

* Assigned to Critical Service Required alarm [ Assigned to Non-Critical Service Required alarm

Src E Over Voltage

Src E Rotation Err *

Src E Under Freq

Src E Under Voltage

Src E Voltage Unbal

Src N Loss of Phase

Src N Over Freq

Src N Over Voltage

Src N Rotation Err *

Src N Under Freq

Src N Under Voltage

Src N Voltage Unbal

Stby Src Available

System Ready

Test Mode Active

Critical Service Required

Man Transfer Waiting

Module Lost Comm *

Non-Critical Service Req

Source E Available

Source N Available

MBUS-Control RDO #1- 4

Figure 4-17 Alarm Descriptions

Functions can be assigned to two alarm groups. The groups can then be assigned to programmable outputs, if desired. Any function assigned to the Common Alarm triggers the Common Alarm programmable output. See Section 4.9, Programmable Inputs and Outputs, for more information about programmable outputs.

4.10.2 Audible Alarm

The audible alarm setting requires the Alarm Module accessory for operation. See Section 7.2.3 for more information about the alarm module.

Enable the audible alarm for any alarm function by navigating to the Alarm Description, Common, Audible menu. press the open up arrow button until the display shows Audible Y and Y or N for Common as desired. press Save.

4.10.3 Chicago Alarm

The Chicago Alarm function requires the alarm module accessory.

The Chicago alarm function is a programmable feature of the MPAC 1500 controller. The alarm is active when the transfer switch is in the Emergency position. The alarm can be silenced via the user interface, which will also activate a light indicating the alarm-silenced condition. The alarm silenced light is deenergized when the transfer switch returns to the Normal position.

For Chicago Alarm Mode, use the Common Alarm Setup menu to assign the necessary faults and conditions to the audible alarm. Be sure to assign the Contactor in Standby function to trigger the audible alarm.

Set Common Alarms

BY"Main

Press the up and down arrow buttons to step between alarm groups 1 and 2. Press the right arrow to modify settings in the displayed group.

Set Common Alarms

Alarm Group 1

BY "Back

Modify Alarm

BY "Back

Remove All Alarms

BY "Back

Alarm Description

Common Y Audible N

BY "Back

Remove All Alarms

Yes/N o

Back Save

Alarm Description

Common Y Audible N

Back Save

Figure 4-18 Setting Common Alarms

TP-6883 4/21 75Section 4 Setup

4.11 Set System

See Figure 4-21 for the Set System menus.

4.11.1 Default Settings

The system parameter factory settings are shown in Figure 4 -19.

System Parameter Factory Setting

Standard or programmed transition Set to order [

Single/three phase Set to order [

Operating voltage Set to order [

Operating frequency (50 or 60 Hz) Set to order [

Phase rotation ABC

Commit to transfer (yes or no) No

Rated current Set to order [

Operating mode:

Generator-to-Generator, Utility-to-Generator, or Utility-to-Utility

In-phase monitor Disabled

In-phase monitor transfer angle 5_

Transfer mode (automatic or non-automatic)*

* The transfer mode (automatic or non-automatic) cannot be

changed in the field.

[ See the ATS nameplate.

Utility-to-Generator

Set to order

The gen-gen type source type uses two generator sets and requires the assignment of a second engine start output. Use the Input/Output Setup menu to assign a controller terminal strip output or an I/O module output to Start Source N Generator, and connect the engine start leads for the Source N generator set to the corresponding terminals on the controller terminal strip or the I/O module. See Section 4.9. The programmable engine start output remains tied to the Source N generator set regardless of the preferred source selection.

The utility-utility source type is designed to use utility power for both sources.

4.11.3 Transition Type

The transition type is factory set for each model and should not require change except in the case of controller replacement. Select standard, programmed, or closed transition, if necessary.

Note: Thetransitiontypeisindicatedbythethirdletter

of the ATS model designation as indicated Figure 4-20. Do not attempt to change the transition type to one that is not listed for your model.

Figure 4-19 System Parameters

4.11.2 Source Type/Source Type

Set the source type selection for the types of sources used:

D One utility source and one generator set D Two generator sets (gen-gen) (Use for prime power

run mode. See Section 4.5.)

D Two separate utility sources D One utility source and two generator sets for a

three-source system (see Section 4.12)

The transfer switch is factory-set for the utility-generator set source type. This type uses one generator set, which is connected to the Emergency side of the contactor (Source E), and one engine start relay. The engine start contact is assigned to the generator set that is connected to the Emergency side of the transfer switch.

Model Tra nsit ion Type

KBS

KCS

KAS

KGS

KBP

KCP

KEP

KAP

KGP

KBC

KCC

Standard (S)

Programmed (P)

Closed (C)

Figure 4-20 Transition Types by Model

Standard-transition (S) (alsoreferredtoasopen

transition) models use a break-before-make transfer that does not require source synchronization for transfer between available sources.

Programmed-transition (P) models stop momentarily in the OFF position during transfer between two available sources. The time in the OFF position can be adjusted using the transfer time delays. See Section

4.6.

TP-6883 4/2176 Section 4 Setup

Closed-transition (C) models provide make-beforebreak transfer for uninterrupted power to the load when both sources are available. The sources are monitored for synchronization and are paralleled for approximately 100 milliseconds during the transfer.

Programmed-transition override (for closedtransition models only). When closed transition is

selected, the programmed-transition override menu appears. The override function operates if the sources do not synchronize before the Inphase Transfer Fail time delay expires. In this case, the transfer switch can be set to transfer to the other source using programmed-transition mode, with a short interruption in power to the load during transfer.

Set System

BY "Main

Source Type Source Type

BY "Back

D Select Automatic to set the unit to initiate a

programmed-transition transfer automatically after the Inphase Transfer Fail time delay expires.

D Select Manual to require an operator to initiate a

programmed-transition transfer by pressing a button after the Inphase Transfer Fail time delay expires.

If a manual transfer is not initiated, the controller continues to monitor the sources and transfers if synchronization occurs.

D Set the Xfr Off>Stby (transfer off-to-standby) time

delay for the desired “off” time during the transfer. See Section 4.6 for the default time delays.

* Source Types:

Util-Gen

?????? - ??????

Back Save

Gen-Gen Util-Util Util-Gen-Gen

** Transition Types:

Standard Transition Programmed Transition Closed Transition

Serviceentrancenot available if source type Gen-Gen is selected

Transition Type

BY "Back

Service Entrance

BY "Back

Rated Current

BY "Back

3 Src Eng Start Mode

BY "Back

Transfer Commit

BY "Back

Transition Type

????????

Back " Save

Disconnect to OFF

Service Entrance

No/ICCB/MCCB

Back Save

Rated Current

??? Amps

Back Save

3SrcEngStartMode

Mode 1/Mode 2

Back " Save

Transfer Commit

Commit/No Commit

Back Save

Prog Transition Override

Automatic/Manual

Back Save

Closed transition only

Pref Source Toggle

Enable/Disable

Back Save

Remote Test Loading

BY "Back

Peak Shave TD Bypass

BY "Back

Remote Test Loading

Loaded/Unloaded

Back Save

Peak Shave TD Bypass

Enabled/Disabled

Back Save

Figure 4-21 Set System Menus

TP-6883 4/21 77Section 4 Setup

4.11.4 Service Entrance

The model KEP is a service entrance rated programmed-transition transfer switch. ICCB denotes insulatedcasecircuitbreakers or switches. MCCB denotes molded-case circuit breakers or switches. Check the model designation on the ATSnameplate and see the model designation key in the specification sheet or the Installation Manual to identify ICCB and MCCB models.

D The Commit setting allows the complete transfer

sequence to execute even if the preferred source returns before the load has been transferred to standby.

D The No Commit setting causes the transfer sequence

to be cancelled without transfer if the preferred source returns before the load has been transferred to standby.

Two service disconnect positions are possible for the Model KEP Service Entrance rated transfer switches. The service disconnect position is factory-set and cannot be changed at the controller.

D Service Disconnect to Emergency (SRC/E). When

the service disconnect switch is moved to the SERVICE DISCONNECT position, the transfer switch signals the generator set to start and transfers to the Emergency source.

D Service Disconnect to OFF. When the service

disconnect switch is moved to the SERVICE DISCONNECT position, the utility breaker opens. Utility power is disconnected and the ATS is in the OFF position.

The service disconnect position is shown in the System Setup screen as Service Disconnect to SRC/E or ServiceDisconnecttoOFF. Transferswitcheswithno service disconnect position indication in the system setup screen use the Service Disconnect to Emergency position. See the Model KEP ATS Operation and Installation Manual for more information about the service disconnect position.

4.11.5 Rated Current

This value is factory-set for each unit and should not require adjustment. If necessary, enter the rated current from the transfer switch nameplate.

4.11.6 Three Source Engine Start Mode

See Section 4.12, Three-Source Systems.

4.11.8 Remote Test Loading

Select loaded or unloaded for a remote test sequence initiated by a remote test input.

4.11.9 Peak Shave TD Bypass

Peak Shave Operation. When the peak shave input is

activated, the generator set starts immediately, bypassing the engine start time delay. The pre/posttransfer time delays, programmed-transition time delays, and in-phase monitor are active if enabled. The ATS transfers the load to the standby source.

Peak Shave TD Bypass. In normal operation, retransfer from standby to preferred is delayed (15 minutes default setting) to ensure that the preferred source is stable before transfer. The Peak Shave TD Bypass allows you to skip the retransfer time delay after peak shave operation.

When the peak shave input is removed, the ATS transfers back to the preferred source according to the Peak Shave TD Bypass setting:

D If the Peak Shave TD Bypass is enabled,the

retransfer (standby to preferred) time delay is bypassed when the peak shave signal is removed. Notice that by enabling the TD bypass, you are ordering the system to skip the retransfer time delay.

D If the Peak Shave TD Bypass is disabled,the

retransfer (standby to preferred) time delay executes before the ATStransfers back to the preferred source. Transfer is delayed by the retransfer time delay. The retransfer time delay is adjustable, with a 15-minute factory setting.

4.11.7 Transfer Commit

The transfer commit setting controls operation if the preferred source returns after a transfer to standby sequence has been initiated but not completed (i.e., preferred returns during the transfer time delay).

If the standby source is lost during peak shave operation, the unit transfers back to the preferred source.

TP-6883 4/2178 Section 4 Setup

4.12 Three-Source Systems

4.12.2 Preferred Source Toggle

A three-source system provides the means to connect a utility and two generators to a single load. See Figure 4-22. Two generators and two transfer switches are required.

Note: The second transfer switch (ATS2) requires an

external battery supply module (EBSM; also called battery option board or BOB) to provide power to the controller.

During normal operation, the utility source supplies the load with power. In the event of a utility failure, generator set G1 or G2 will supply the load as described in Sections 4.12.1 and 4.12.2.

4.12.1 Three Source Engine Start Mode

There a re two modes of operation for three-source engine start. Select Mode 1 or Mode 2 on ATS2 as needed for t he application.

Mode 1

In mode 1 there will be an attempt to start only the preferred source generator. If the preferred source does not achieve voltage and frequency within a fail to acquire time period, the standby engine start contact will close. The fail to acquire will be indicated. If the standby source subsequently fails to achieve voltage and frequency, a separate fail to acquire standby will be indicated.

The preferred source toggle function alternates between the two generator sets each time the three-source function is activated. If G1 is the preferred source during the first run, then G2 will be preferred during the next run. The preferred source selection will continue to alternate between G1 and G2 for each subsequent run.

4.12.3 Three Source System Test and Exercise

Unloaded Test

Unloaded testing is possible at each transfer switch. Initiating the unloaded test function at ATS1 starts and runs the preferred generator set attached to ATS2. Initiating the unloaded test function at ATS2 starts and runs the standby generator set.

Loaded Test

Loadedtestingisalsoallowedateachtransferswitch. Loaded testing of the standby generator set is only possible during a loaded test from ATS1 because the standby generator can only be connected to the load when ATS1 is connected to emergency. To initiate a loaded test of the standby generator set, first use ATS1 to start a loaded test of the preferred source generator set. Then use ATS2 to start a loaded test of the standby generator set.

Mode 2

In mode 2 both generators receive a start signal simultaneously. The ATS2 will transfer to the first generator set to reach proper voltage and frequency. If the first source to reach available status is the preferred source, the engine start signal to the standby source will open immediately. If the standby source is the first to reach available status, the contactor will transfer to the standby position. When the preferred source generator output reaches available status, the controller will transfer to the preferred source and open the engine start contacts to the standby generator (after the cooldown delay has elapsed).

Unloaded Exercise

The exercise program in ATS2 controls the operation of each generator. The exercise function does not require interaction with ATS1. If the utility is lost during an unloaded exercise event, the event is canceled and the load is transferred to the preferred generator set.

Loaded Exercise

The exercise program in ATS2 controls the operation of each generator. The loaded exercise event requires synchronization with a loaded exercise from ATS1. Program the ATS1 exercise to start before the ATS2 exercise. Set the ATS2 exercise to end before the ATS1 exercise ends. If the utility is lost during a loaded exercise event, the event is canceled and the load is transferred to the preferred generator set.

TP-6883 4/21 79Section 4 Setup

SINGLE LINE DIAGRAM

G1 G2

ATS 2

ATS 1

LOAD

LEGEND

ATS - AUTOMATIC TRANSFER SWITCH EBSM - EXTERNAL BATTERY SUPPLY MODULE G1 - GENERATOR #1 G2 - GENERATOR #2 K1 - NORMAL RELAY K2 - EMERGENCY RELAY LED1 - LIGHT EMITTING DIODE (BATTERY 1 REVERSED) LED2 - LIGHT EMITTING DIODE (BATTERY 1 REVERSED) LED3 - LIGHT EMITTING DIODE (BATTERY SUPPLYING POWER) MLB - MAIN LOGIC BOARD P(#) - CONNECTOR PIOM - PROGRAMMABLE INPUT/OUTPUT MODULE MLB - MAIN LOGIC BOARD TB(#) - TERMINAL BLOCK SW - SWITCH U- UTILITY

ENGINE START

N/C

NOTE: THE CLOSED IN EMERGENCY AUXILLIARY CONTACT THAT IS USED IN THE ENGINE START CIRCUIT OF THE ATS MUST BE REMOVED FROM THE CIRCUIT WHEN USED WITH THIS THREE SOURCE CONTROL SCHEME.

REFERENCE ATS WIRING DIAGRAM FOR CONNECTIONS.

Note: ATS2 requires an external battery module

ENGINE START

TO G2

to maintain power to the controller.

OPERATION

WHEN UTILITY FAILS ATS2 STARTS G1. ATS1 TRANSFERS TO THE EMERGENCY POSITION. IF G1 FAILS ATS2 WILL START G2 AND ATS2 WILL TRANSFER TO EMERGENCY. IF G1 RETURNS THEN ATS2 WILL RE- TRANSFER BACK TO NORMAL. ATS1 WILL RE- TRANSFER BACK TO NORMAL AFTER THE UTILITY RETURNS. WHEN THE UTIITY IS AVAILABLE, THE BATTERY SUPPLY MODULE WILL PROVIDE POWER TO THE CONTROLLER ON ATS2. THE 3 SOURCE SYSTEM DISABLE INPUT AND OUTPUT WILL PREVENT ATS2 FROM STARTING EITHER GENSET WHILE THE UTILITY SOURCE IS AVAILABLE.

THE BATTERY SUPPLY MODULE USES UP TO TWO BATTERY INPUTS (9 - 36VDC) AND PROVIDES A 12V OUTPUT THAT POWERS THE ATS CONTROLLER. THIS IS CONNECTED TO THE CONTROLLER BY SNAPPING IT TO AN EXISTING I/O MODULE OR THROUGH A HARNESS TO P3 ON THE CONTROLLER (WHEN AN I/O MODULE IS NOT USED). THE BATTERY SUPPLY MODULE WILL CONTINUALLY PROVIDE POWER TO THE CONTROLLER UNLESS THE ON/OFF INPUT ON THE BATTERY SUPPLY MODULE IS ENABLED. THE ON/OFF INPUT ON TB1 OF THE BATTERY SUPPLY MODULE CAN BE USED IN CONJUNCTION WITH THE NORMALLY OPEN CONTACT OF A PROGRAMMABLE OUTPUT FROM AN INPUT/OUTPUT MODULE TO TURN THE BATTERY SUPPLY MODULE OFF WHEN A SOURCE IS AVAILABLE.

Figure 4-22 Three-Source System Transfer Switch and Source Connections

GM28627B

TP-6883 4/2180 Section 4 Setup

4.12.4 Three-Source System Setup

See Figure 4-22 and Figure 4-24 for connections during the following steps.

1. Connect the power sources to the transfer switches as described below. Refer to the transfer switch operation/installation manual or specification sheet for cable sizes. See Figure 4-22 for connections.

a. Connect the utility power source to the normal

side of ATS1.

b. Connect the load to the load side of ATS1.

c. Connect the emergency side of ATS1 to the

load side of ATS2.

d. Connect generator set 1 to the normal side of

ATS2.

e. Connect generator set 2 to the emergency side

of ATS2.

2. Three-source systems require the following input/ output connections to control the engine start commands for generator sets 1 and 2. Observe the polarity of all connections shown in Figure 4-24. Use wire sizes from #14 AWG to #20 AWG for EBSM (a.k.a. BOB) and I/O module connections.

a. Connect the ATS2 engine start contacts to the

engine start circuit on generator set 2 (G2).

3. Connect battery power. Use #14-28 AWG wire to connect the generator set engine starting battery (or batteries) to the BATT1 terminals on terminal block TB13 on the external battery supply module (EBSM or BOB). (Another battery(ies) can be connected to terminals BATT2 but is not required.) Follow the marking on the board for the positive (+) and negative (- ) connections. See Figure 7-8 and Figure 7-9.

Note: If the battery connections are reversed, red

LED1 or LED2 will light. Incorrect battery connections can damage the battery module.

4. Set voltage selector switch SW11-1 on the battery module (EBSM or BOB) to 12 or 24VDC.

Note: See Section 7.2.2 for more information on

the EBSM (or BOB).

5. Assign the ATS1 programmable output connected in step 2b. to Three-Source System Disable.

6. Assign the following inputs and outputs for the second transfer switch.

a. Assign ATS2 controller programmable input 1

to Three-Source System Disable.

b. Assign the ATS2 controller programmable

output connected in step 2c. to Source N Start Signal.

Note: See the Installation Section for the engine

start contact locations. Engine start contacts are labeled with a decal.

b. Connect one ATS1 programmable output from

the controller to one ATS2 main logic board programmable input as shown in Figure 4-24. This I/O connection will be set to Three-Source System Disable.

c. Connect one ATS2 programmable output from

the controller to the engine start connection on generator set 1 (G1). The ATS1programmable output will be set to Source N Start Signal.

Transfer Switch

ATS 1 Util-Gen Not Required Not Required Not Required

ATS 2 Util-Gen-Gen Mode 1 or Mode 2

Source Type

3SrcEngine

Start Mode

(See Section 4.12.1)

Preferred

Source Toggle

Enable or Disable See Section 4.12.2

4.12.5 ATS1 and ATS2 System Setup

Set the following parameters on the transfer switches:

ATS1: UsetheSystemSetupMenutosettheSource type to Util-Gen.

ATS2: Use the System Setup Menu to set the source type to Util-Gen-Gen. Set the 3 Src Engine Start Mode to Mode 1 or Mode 2 as described in Section 4.12.1. In the Set S1 Time Delay menu, verify that Fail to Acquire Preferred is enabled.

The transfer switch settings are summarized in Figure 4-23.

Inputs Outputs

Three Source

System Disable

Figure 4-23 Transfer Switch Settings for Three-Source Systems

Three Source

System Disable

Source N Start

Signal

Fail to Acquire

Preferred

—

Enable

TP-6883 4/21 81Section 4 Setup

3 Source System Disable

Connect Output 1 terminals TB1-5andTB1-6onATS1to Input 1 terminals TB1-1 and TB1-2onATS2.

Assign ATS 1 main logic board output 1 to 3 Source System Disable.

ATS1

ATS1 TB1

on logic board

Assign ATS2 main logic board input 1 to 3 Source System Disable.

Connect one normally closed

G1 ES

output from ATS2 to G1 engine start (ES) connections. Assign to Engine Start Source N.

Connect the ATS2 engine start contacts (on the contactor or the field-connection terminal

ATS2 T B 1

on logic board

block) to G2 engine start (ES) connections. SeeFigure4-22.

Figure 4-24 Input and Output Connections for Three-Source Systems

ATS2

6883

TP-6883 4/2182 Section 4 Setup

4.13 Communications

4.14 Set Passwords

Use the Set Communications menu to set the communication parameters for serial or Ethernet connections. See Section 5, Communications, for instructions.

Set Passwords

BY"Main

Setup Password

BY"Back

Test Password

BY"Back

Figure 4-25 Setting/Changing Passwords

Two passwords control access to the Test and Setup menus. Passwords are 4-digit numerical values ranging from 0000 to 9999. The default passwords are set to

0000. Change the passwords to prevent unauthorized access to the Test initiation menus and system settings.

Note: A DIP switch on the controller’s main logic board

allows the setup password to be disabled. The DIP switch does not disable the test password.

Old Password ?

New Password ????

Back Save

Old Password ?

New Password ????

Back Save

???

Incorrect Password

???

Incorrect Password

TP-6883 4/21 83Section 4 Setup

4.15 Calibration

4.16 Setting the Current to Zero

DANGER

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

T esting live electrical circuits. Hazardous voltage or current will cause severe injury or death. Have trained and

qualified personnel take diagnostic measurements of live circuits. Use adequately rated test equipment with electrically insulated probes and follow the instructions of the test equipment manufacturer when performing voltage tests. Observe the following precautions when performing voltage tests: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Do not touch the enclosure or components inside the enclosure. (4) Be prepared for the system to operate automatically.

(600 volts and under)

The transfer switch voltage and current sensing (if equipped) are calibrated at the factory. If voltage recalibration is necessary, refer to the transfer switch installation manual or service manual for instructions to check the voltages, and then use the Calibration menu to enter the measured values. See Figure 4-27.

The metered current can be set to zero. This can be done with any screen showing, but zeroing the current while viewing the current metering screen is recommended. See the Operation Menus shown in Section 1.6.

Procedure to Set the Current to Zero

1. Remove all loads from the transfer switch.

2. Press buttons 1 and 4 on the controller. See Figure 4-26.

1. Button 1

2. Button 4

GM85884

Figure 4-26 User Interface Panel

The current sensing accessory is required in order f or the transfer switch to measure and display the current values. See Section 7.4. Use a clamp-on current sensing meter to measure the current and enter the measured values through the Setup Menu- Calibration shown below.

For three-phase models, the voltage and current for all phases will appear and can be calibrated.

Calibrate

Calibration

BY"Main

L-NVoltages

Source N(E)

BY"Back

Calibrate

L - L Voltages

Source N(E)

BY"Back

Calibrate

Load Current

BY"Back

4.17 Reset Data

The Reset Data menu allows the service technician to reset the maintenance records, event history, and other items. See Section 1.12.

Calibrate

L1 - L0 Voltage

BY"Back

Calibrate

L1 - L2 Voltage

BY"Back

Calibrate

LA Current

BY"Back

L1 - L0 VAC ###

Cal VAC ? ??

Back Save

L1 - L2 VAC ###

Cal VAC ?

Back Save

LA Amps ####

Cal Amps ?

Back Save

???

Figure 4-27 Calibration

TP-6883 4/2184 Section 4 Setup

Section 5 Communications

5.1 Introduction

The Decision-Makerr MPAC 1500 controller has three types of communications connections: an RS-485 serial port, an ethernet port, and a USB port.

Kohler authorized distributors and dealers can use a personal (laptop) computer with Kohlerr SiteTecht software to view and adjust controller parameters, view event history, import and export parameter files, and update controller firmware. See TP-6701, SiteTech Software Operation manual, for instructions.

The controller uses Modbusr TCP/IP communication protocol over the Ethernet port and Modbusr RTU communication protocol over the serial port. The Modbus registers are available in the Modbus Protocol manual. See the List of Related Materials.

The controller can send encapsulated Modbus messages over the network connection. Only one Modbus address can be assigned to the controller, regardless of the communication port or protocol being used.

Note: Modbusr applications require a Modbus

software driver written by a trained and qualified systems programmer.

5.2 Connections

5.2.1 USB Port SiteTech Connection

A personal computer and Kohler SiteTech software can be used for changing controller settings. Use a USB cable to connect the controller to a personal computer.

See Figure 5-1 for the USB port location on the front of the controller assembly. Remove the small port cover and use a USB cable with a mini-B connector to connect the controller’s USB port to the computer.

See TP-6701, SiteTech Software Operation Manual, for instructions to use the software. Disconnect the USB cable from the controller and replace the protective cover when finished.

Modbusr is a registered trademark of Schneider Electric.

GM85888

3. USB connection (below port cover)

Figure 5-1 USB Connection (for SiteTech)

TP-6883 4/21 85Section 5 Communications

5.2.2 Modbus Connection

5.2.3 Ethernet Connection

The controller is equipped with a Modbus port with an RS-485 connector. See Figure 5-2 for the RS-485 Modbus connector location.

Use serial connections to TB2 on the main logic board to connect the transfer switch to a personal computer for system monitoring, an optional remote annunciator, or a Modbus network. See the transfer switch Installation Manual for connection instructions.

TheserialportisanisolatedRS-485portwith connection speeds of 9.6, 19.2, and 57.6 kbps.

Use Modbus RTU (remote terminal unit) protocol for communication through the serial port. A map of the Modbus codes for this controller is available. Contact your local distributor/dealer.

Note: Modbusr applications require a Modbus

software driver written by a trained and qualified systems programmer.

The Ethernet communication accessory board is standard equipment on the MPAC 1500 controller. The communication board is installed onto the controller board as shown in Figure 5-3.

GM85884

1. Ethernet communication board with RJ-45 connector

2. Access opening for Ethernet cable

Figure 5-3 Ethernet Board (controller cover

removed for illustration only)

GM85884

1. RS-485 Modbus connections

2. Access opening for RS-485 cables

Figure 5-2 Modbus Connections (controller cover

removed for illustration only)

The Ethernet communication accessory board allows the transfer switch to be connected to a building’s Ethernet network to communicate with personal computers connected to the same subnet. See the transfer switch Installation manual for connection instructions.

Note: For an ethernet connection, obtain an IP address

and subnet mask number from the local system administrator.

Use the Setup menus or a personal computer connected to the controller’s USB port and Kohler SiteTech software to set the communication parameters. Assign a port number, IP address, and subnet mask number from the controller’s front panel. The Ethernet communication board may have a default IP address assigned at the factory for test purposes.

Change the IP address to an address owned by the user. See Section 4.13 for instructions to set the

communication parameters.

The controller can communicate with up to five (5) simultaneous TCP/IP (ethernet) connections. These five connections do not include the RS-485 serial port. In the extreme case, five users may be communicating with the controller via TCP/IP network connections and another may be communicating through the serial port, for a total of six (6) communication channels. As the controller is asked to communicate with more and more outside devices, the communication will slow down.

TP-6883 4/2186 Section 5 Communications

5.3 Communications Setup

Use the controller display and keypad or a personal computer with Kohlerr SiteTecht software connected to the USB port to set the communication parameters for serial or ethernet connections. The controller uses Modbusr communication protocol.

5.3.1 Modbus Serial Communication Setup

Static Subnet Mask. Obtain subnet mask information

from the local network administrator. All devices that communicate with each other on the same local network must use the same subnet mask.

Static Default Gateway. Obtain gateway information from the local network administrator.

DHCP Server. Displayed for information only. Provide this value to the network administrator if there are problems with DHCP.

Set the following communication parameters for serial communication. Also see Figure 5-6 for a summary of these settings.

Note: Modbusr applications require a Modbus

software driver written by a trained and qualified systems programmer.

Modbus Enabled. SettoTruetoallowModbus communication.

Modbus Baud Rate. Required for serial connections. The baud rate must match the baud rate of the connected PC.

Modbus Slave Addr. Assign a unique address between 0 01 and 247 to the serial port.

5.3.2 Network Communication Setup

Work with your local network administrator to set the following communication parameters for Ethernet communication.

See Figure 5-6 for a summary of the following settings.

Modbus TCP Unit ID. The unit ID is required for Modbus over TCP communication. The unit ID for TCP communication is analogous to the Modbus address for serial communication through the RS-485 ports. The factory default setting is 2.

Modbus TCP Server Enabled. Enable (set to True) to enable TCP if the transfer switch is connected to a network for TCP/IP communication (for example, ethernet communication).

MAC address. The MAC hardware address is factory-set. It can be seen in the View>Communications Setup menus but not viewed or changed in the setup menus.

5.3.3 Setup Using the Controller Keypad

Use the Set Communications menu to set the communication parameters for serial or ethernet connections. See Figure 5-4.

The Modbus port on the controller circuit board is Port 0.

DHCP Enabled. Factory set to False. Setting this parameter to True enables dynamic host configuration protocol (DHCP), which allows a DHCP server to automatically assign a dynamic IP address, subnet mask, and default gateway to the MPAC controller. Work with your local network administrator to determine whether DHCP is required.

Static IP Address. The transfer switch may have a default IP address assigned at the factory. Change the

IP address to a static IP address owned by the user.

Obtain an IP address, subnet mask, and default gateway information from the local network administrator.

TP-6883 4/21 87Section 5 Communications

5.3.4 Setup Using SiteTech

Use a USB cable, male USB A to male USB mini-B, to connect the MPAC controller to a personal computer. Then use Kohler SiteTech software to set the communication parameters for serial or Ethernet connections. See Figure 5-5 and TP- 6701, SiteTech Software Operation Manual.

SiteTech software is available only to Kohler authorized distributor and dealers.

Some parameter names in SiteTech are slightly different than what is shown the controller display. Figure 5-6 shows both names.

Set Communications

Communications Setup

MODBUS Server TCP

Enabled/Disabled

BY"Main

BY"Back

Communications Setup

MODBUS Server Port 0

BY"Back

Communications Setup

MODBUS Addr Port 0

BY"Back

Communications Setup

Baud Rate Port 0

BY"Back

Communications Setup

MODBUS TCP Unit ID

BY"Back

Communications Setup

IP Address

BY"Back

Back Save

MODBUS Server Port 0

Enabled/Disabled

Back Save

MODBUS Addr Port 0

Back Save

Baud Rate Port 0

#####

Back Save

MODBUS TCP Unit ID

002

Back Save

IP Address

###.###.###.###

Back Save

Baud rate: 9600, 19200 or 57600

Communications Setup

Subnet Mask

BY"Back

Communications Setup

Default Gateway

BY"Back

Communications Setup

DHCP Status

BY"Back

Subnet Mask

###.###.###.###

Back Save

Default Gateway

###.###.###.###

Back Save

DHCP Status

Enabled/Disabled

Back Save

Figure 5-4 Communications Setup from the Controller Display and Keypad

TP-6883 4/2188 Section 5 Communications

* *

* Obtain from the local network administrator

Figure 5-5 Communications Setup using Kohlerr SiteTecht Software (typical screen shown)

TP-6883 4/21 89Section 5 Communications

Setting

as shown in SiteTech

and on the controller display

SiteTech: Modbus Enabled

Controller: Modbus Server Port 0

SiteTech: Modbus Baud Rate

Controller: Baud Rate

SiteTech: Modbus Slave Address

Controller: Modbus Address

SiteTech: Modbus Parity

Controller: (not shown on controller)

SiteTech: Modbus Stop Bits

Controller: (not shown on controller)

SiteTech: DHCP Enabled

Controller: DHCP Status

SiteTech: Static IP Address

Controller: IP Address

SiteTech: Static Subnet Mask

Controller: Subnet Mask

SiteTech: Static Default Gateway

Controller: Default Gateway

SiteTech: DHCP Server

Controller: (not shown on controller)

SiteTech: Modbus TCP Unit ID

Controller: Modbus TCP Unit ID

SiteTech: Modbus TCP Server Enabled

Controller: Modbus Server TCP

SiteTech: MAC Address

Controller: MAC Address (view menu only)

* Do not use the factory settings for IP address, subnet mask, or default gateway. Obtain these settings from your local network

administrator.

Range Default Notes

True or False

Enabled or Disabled

9600, 19200, 57600 19200 Baud rate in bits per second for serial communication

001-247 0 Address for the RS -485 serial port (on the logic

Read only None Not adjustable.

Read only 1 Not adjustable.

True or False

Enabled or Disabled

See notes. * Obtain from your local network administrator. Every

See notes. * Obtain from your local network administrator.

Read only — Displayed in SiteTech for information only.

001-247 002 The unit ID is required for Modbus over TCP

True or False

Enabled or Disabled

Not Adjustable Factory-

True

Enabled

False

Disabled

True

Enabled

set

Enable for network communication through the ethernet port.

between the controller and a personal computer’s COM port.

board).

Dynamic host communication protocol. Enable if required; check with your local network administrator.

device on the network must have a unique IP address.

All devices that communicate with each other on the same local network must use the same subnet mask.

communication.

Enable (set to True) to enable TCP/IP communication (for example, Ethernet communication).

Hardware address, entered at the factory. Not adjustable.

Figure 5-6 Communication Parameters

TP-6883 4/2190 Section 5 Communications

5.4 Parameter Files

5.5 Controller Firmware Updates

The parameter setting files can be exported to a personal computer (PC) using Kohlerr SiteTecht software. Use a USB cable to connect the PC to the controller. The resulting file can be opened using a spreadsheet program on your computer. Modification of the settings in the file is not recommended.

Parameter settings can be loaded onto the MPAC controller from a saved file. This can be useful for service or controller replacement. See the SiteTech Operation Manual for instructions to export and import files.

Kohler may release updated versions of the controller firmware. A personal (laptop) computer connected to the USB port and Kohlerr SiteTecht software are required for updating the firmware on the controller. Have an authorized distributor/dealer load an updated version of the controller firmware, if necessary. See TP-6701 for instructions to update the firmware.

TP-6883 4/21 91Section 5 Communications

Notes

TP-6883 4/2192 Section 5 Communications

Section 6 Scheduled Maintenance

6.1 Introduction

Regular preventive maintenance ensures safe and reliable operation and extends the life of the transfer switch. Preventive maintenance includes periodic testing, cleaning, inspection, and replacement of worn or missing components. Section 6.4 contains a service schedule for recommended maintenance tasks.

A local authorized distributor/dealer can provide complete preventive maintenance and service to keep the transfer switch in top condition. Unless otherwise specified, have maintenance or service performed by an authorized distributor/dealer in accordance with all applicable codes and standards. See the Service Assistance section in this manual for how to locate a local distributor/dealer.

Keep records of all maintenance or service.

Replace all barriers and close and lock the enclosure door after maintenance or service and before reapplying power.

WARNING

Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the

generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

DANGER

Accidental starting. Can cause severe injury or death.

Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the

generator set or equipment connected to the set, disable the generator set as follows: (1) Move the generator set master switch to the OFF position. (2) Disconnect the power to the battery charger. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent starting of the generator set by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer.

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

DANGER

Hazardous voltage. Moving parts. Will cause severe injury or death.

Operate the generator set only when all guards and electrical enclosures areinplace.

TP-6883 4/21 93Section 6 Scheduled Maintenance

Grounding electrical equipment. Hazardous voltage will cause severe injury or death. Electrocution is possible

whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set, transfer switch, and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

before servicing. Turn off the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Move all generator set master controller switches to the OFF position. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (- ) leads first. Reconnect negative (- ) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

Short circuits. Hazardous voltage/current will cause severe injury or death. Short circuits can cause bodily injury

and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.

NOTICE

Electrostatic discharge damage. Electrostatic discharge

(ESD) damages electronic circuit boards. Prevent electrostatic discharge damage by wearing an approved grounding wrist strap when handling electronic circuit boards or integrated circuits. An approved grounding wrist strap provides a high resistance (about 1 megohm), not a direct short, to ground.

6.2 Testing

6.2.1 Weekly Generator Set Exercise

Use the exerciser to start and run the generator set under load once a week to maximize the reliability of the emergency power system. See Section 4.4 for instructions to program the exerciser.

D Watch and listen for signs of excessive noise or

vibration during operation.

D After the switch transfers the load to the standby

source, end the test and verify that the expected sequence of operations occurs as the transfer switch retransfers to the preferred source and signals the generator set to shut down after a cooldown period.

D On programmed-transition units, verify that the time

delay in the OFF position functions during transfer to the standby source and transfer back to the preferred source.

6.3 Inspection and Service

Contact an authorized distributor/dealer to inspect and service the transfer switch annually and also when any wear, damage, deterioration, or malfunction of the transfer switch or its components is evident or suspected.

6.3.1 External Inspection

Keep the transfer switch clean and in good condition by performing a weekly general external inspection of the transfer switch for any condition of vibration, leakage, excessive temperature, contamination, or deterioration. Remove accumulations of dirt, dust, and other contaminants from the transfer switch’s external components or enclosure with a vacuum cleaner or by wipingwithadryclothorbrush.

Note: Do not use compressed air to clean the transfer

switch because it can cause debris to lodge in the components and damage the switch.

Tighten loose external hardware. Replace any worn, missing, or broken external components with manufacturer-recommended replacement parts. Contact a local authorized distributor/dealer for specific part information and ordering.

6.2.2 Monthly Automatic Control System Test

Test the transfer switch’s automatic control system monthly. See Section 1.8 for the test procedure.

D Verify that the expected sequence of operations

occurs as the switch transfers the load to the emergency source when a preferred source failure occurs or is simulated.

D Observe the indicator LEDs included on the transfer

switch to check their operation.

TP-6883 4/2194 Section 6 Scheduled Maintenance

6.3.2 Internal Inspection

6.3.3 SPD Inspection

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Disconnect all power sources, open the transfer switch enclosure door, and inspect internal components monthly or when any condition noticed during an external inspection may have affected internal components.

Contact an authorized distributor/dealer to inspect and service the transfer switch if any of the following conditions are found inside the transfer switch.

D Accumulations of dirt, dust, moisture, or other

contaminants

D Signs of corrosion

D Worn, missing, or broken components

DANGER

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

On transfer switches equipped with optional surge protective devices (SPDs), check the following items every two months:

D SPD status indicators

D Condition of SPD connecting leads

6.3.4 Other Inspections and Service

Have an authorized distributor/dealer perform scheduled maintenance, service, and other maintenance that ensures the safe and reliable operation of the transfer switch. See Section 6.4, Service Schedule, for the recommended maintenance items and service intervals.

D Loose hardware

D Wire or cable insulation deterioration, cuts, or

abrasion

D Signs of overheating or loose connections:

discoloration of metal, melted plastic, or a burning odor

D Other evidence of wear, damage, deterioration, or

malfunction of the transfer switch or its components.

If the application does not allow a power interruption for the time required for the internal inspection, have an authorized distributor/dealer perform the internal inspection.

6.3.5 Model KGS/KGP Bypass/Isolation Switches

For Model KGS/KGP bypass/isolation switches, have a Kohler authorized distributor/dealer perform the following additional maintenance checks every year. Refer to the transfer switch Service Manual for instructions when necessary.

D Apply dielectric grease to movable finger assemblies,

if possible.

D Takethermal readings of each socket after the socket

has been energized for at least 3 hours. Any readings on the socket surface that exceed 65_C(149_F) indicateaneedtoreplacethesocket. Recordthe amperage levels when taking the thermal readings.

D With the transfer switch r emoved, locate the bolt that

retains the pin for each power connector and ensure that it is properly torqued.

D With the bypass de-energized, locate the bolt that

retains the socket for each power connector (where accessible) and verify that it is properly torqued.

Have an authorized distributor/dealer repair or replace damaged or worn internal components with manufacturer-recommended replacement parts.

TP-6883 4/21 95Section 6 Scheduled Maintenance

6.4 Service Schedule

Follow the service schedule below for the recommended service intervals. Have all service

performed by an authorized distributor/dealer except for activities designated by an X, which may be performed by the switch operator.

Adjust,

Repair,

Replace

Clean Te s t Frequency

System Component or Procedure

See

Section

Visually

Inspect

Check

Electrical System

Check for signs of overheating or loose connections: discoloration of metal, melted plastic, or a burning odor

Check the contactor’s external operating mechanism for cleanliness; clean and relubricate if dirty *

Inspect wiring insulation for deterioration, cuts, or abrasion. Repair or replace deteriorated or damaged wiring

Tighten control and power wiring connections to specifications

Check the transfer switch’s main power switching contacts’ condition; clean or replace the main contacts or replace the contactor assembly as necessary

For Model KGS/KGP bypass/isolation switches, perform the additional checks in Section 6.3.5.

6.3.1 X X Y

6.3.1 X

6.3.1 X D D Y

2 D D Y

S/M D D D Y

6.3.5, S/M D D D Y

D (clean

and lube)

Control System

Exercise the generator set under load 6.2.1 X W

Test the transfer switch’s automatic control system 6.2.2

1.8

Test all indicators (LEDs) and all remote control systems for operation

I/M X D D D Y

X X M

General Equipment Condition

Inspect the outside of the transfer switch for any signs of excessive vibration, leakage, high temperature, contamination, or deterioration *

Check that all external hardware is in place, tightened, and not badly worn

Inspect the inside of transfer switch for any signs of excessive vibration, leakage, high temperature, contamination, or deterioration *

Check that all internal hardware is in place, tightened, and not badly worn

SPD Modules (if equipped)

Check status indicators

Check condition of connecting leads

* Service more frequently if the transfer switch is operated in dusty or dirty areas.

See Section: Read these sections carefully for additional information before attempting maintenance or service. Visually Inspect: Examine these items visually. Check: Requires physical contact with or movement of system components, or the use of nonvisual indications. Adjust, Repair, Replace: Includes tightening hardware and lubricating the mechanism. May require replacement of components depending

upon the severity of the problem. Clean: Remove accumulations of dirt and contaminants from external transfer switch’s components or enclosure with a vacuum cleaner or by

wipingwithadryclothorbrush. Do not use compressed air to clean the switch because it can cause debris to lodge in the components and cause

damage.

Tes t: May require tools, equipment, or training available only through an authorized distributor/dealer.

Symbolsusedinthechart:

X= The transfer switch operator can perform these tasks. D=An authorized distributor/dealer must perform these tasks. I/M = Transfer Switch Installation Manual S/M = Service Manual. An authorized distributor/dealer must perform

these tasks.

6.3.1 X X M

6.3.1 X X X M

6.3.4 D D D Y

6.3.4 X D D Y

7.10 X D

W=Weekly M=Monthly Q=Quarterly S=Semiannually (every six months) Y=Yearly (annually)

Every

2months

TP-6883 4/2196 Section 6 Scheduled Maintenance

Section 7 Accessories

7.1 Introduction

This section describes the hardware options that are available with the Decision-Makerr MPAC 1500 controls. The following accessories are available:

D Accessory modules D Controller disconnect switch D Current monitoring D Digital meter: displays voltage, frequency, current,

power, and more (factory-installed)

D Load shed module (available on programmed-

transition and closed-transition models only)

D Line-to-neutral voltage monitoring D Supervised transfer control switch D Surgeprotectiondevice(SPD) D User interface cover

7.2 Accessory Modules

The following types of accessory modules (also referred to as accessory boards) are available:

D Standard input/output module

D High power input/output module

D Alarm module with Chicago alarm function

D External battery module

See the transfer switch Installation Manual for field connection instructions. If the modules are not factory-installed, refer to the installation instructions provided with the accessory kits.

The m ounting kit holds up to five optional modules. The maximum total current draw is 300 mA. See Figure 7-1. If an External Battery Module is installed, there is no current restriction.

1. Cable connection (defined as the TOP regardless of orientation)

2. I/O modules (if equipped)

3. Alarm module (if equipped)

4. External battery module (must be last, if equipped)

5. Mounting plate

Figure 7-2 Accessory Module Mounting

GM46258

The accessory modules with mounting kit are shown in Figure 7 -2.

Module Current Draw Specifications, mA

Alarm Module 75

Standard I/O Module 75

High Power I/O Module 100

Figure 7-1 Option Board Types

TP-6883 4/21 97Section 7 Accessories

7.2.1 Input/Output (I/O) Modules

Two types of input/output modules are available. The standard I/O Module has two inputs and six outputs. The high-power I/O module has two inputs and three outputs. See Figure 7-4 through Figure 7-6 for I/O module illustrations and specifications.

1. Input LEDs 7 and 8 for inputs 1 and 2

2. Input connector

3. Output connector

4. Output LEDs 1- 6

Figure 7-3 Standard I/O Module

Inputs

Available Inputs 2

Input Definition Contact Closure

Current 5mAMax

Connection Type Terminal Strip

Wire Size #14-24 AWG

Max Distance 700 feet

Outputs

Outputs Available 6

Contact Type Form C (SPDT)

Contact Voltage Rating

Connection Type Terminal Strip

Wire Size #14-24 AWG

2A@30VDC 500 mA @ 125 VAC

Figure 7-4 Standard Input/Output Module

GM41093

1. Input LEDs 1 and 2

2. Input connector

3. Output connector

4. Output LEDs 3 - 5 for outputs 1, 2, and 3

Figure 7-5 High-Power I/O Module

Inputs

Available Inputs 2

Input Definition Contact Closure

Current 5mAMax

Connection Type Terminal Strip

Wire Size #14-24 AWG

Max Distance 700 feet

Outputs

Outputs Available 3

Contact Type Form C (SPDT)

12 A @ 24 VDC

Contact Voltage Rating

Connection Type Terminal Strip

Wire Size #14-24 AWG

12 A @ 250 VAC 10 A @ 277 VAC 2A@480VAC

Environmental Specifications

Temperature -40Cto85C(-40Fto185F)

Humidity 35% to 85% noncondensing

Figure 7-6 High-Power Input/Output Module

GM42186

TP-6883 4/2198 Section 7 Accessories

Note: Each I/O module must have unique address.

Use the address DIP switches on the I/O module to assign a unique (different) address to each module as shown in Figure 7-7. Assign addresses in order from 1 to 4. An LED for each DIP switch lights to indicate that theswitchisclosed.

D Three-source systems. Three-source systems use

two transfer switches and two standby power sources in addition to the preferred power source. The EBSM provides power to the second ATS controller when the preferred source (connected to ATS1) is supplying the load. See Section 4.12 for instructions to set up a three-source system.

The alarm module’s fixed address is 5. The battery module’s fixed address is 6.

Use the Set Inputs/Outputs menu to assign input and output functions. See Section 4.9 for instructions.

LEDs on the module circuit board light to indicate that each input or output is active.

Both switches OFF

Address=1 shown

DIP Switch

1 2

Off Off 1

On Off 2

Off On 3

On On 4

Address

Figure 7-7 Address DIP Switch Settings

The EBSM produces 2 amps at 12 VDC with 9- 36 VDC input. The EBSM input is reverse-polarity protected. The EBSM outputs a low battery voltage signal when the external battery voltage falls below 11 VDC for a 12-volt system or 22 VDC for a 24-volt system.

1. Connector P20

2. LED indicators

3. Battery input connection terminal block TB13

4. 12/24 volt DIP switch SW11-1. OFF=12 VDC, ON = 24 VDC

GM42227-A

7.2.2 External Battery Supply Module (EBSM/BOB)

The external battery supply module (EBSM) kit allows connection to the generator set engine start battery(ies) or other batteries to provide 12 VDC power to the ATS

Figure 7-8 External Battery Supply Module

DIP Switch SW11-1 Setting Battery Voltage

OFF 12 VDC

ON 24 VDC

Figure 7-9 Battery Voltage Selection

controller. The EBSM may also be referred to as the battery option board (BOB).

The EBSM kit is required for the following applications:

D Systems using extended engine start time

delays. The EBSM provides power to the ATS controller during extended time delays longer than 15 seconds, when neither the Normal nor the Emergency source is available.

D Installations with frequent utility power outages.

The EBSM provides power to the ATScontroller when neither source is available, preserving the controller’s backup battery.

TP-6883 4/21 99Section 7 Accessories

7.2.3 Alarm Module

Alarm Board DIP Switches

See Figure 7 -10 for the alarm module.

The functions provided by this board are:

D 90 dB Audible alarm (any alarm function can be

programmed to t rigger the audible alarm)

D Chicago alarm operation

D Preferred source selection

D Supervised transfer control (supervised transfer

control switch required)

D Connection for external alarm

The alarm board has a fixed address = 5.

There are four DIP switches on the alarm module board. Some of the switches are not used. See Figure 7-11. To enable the preferred source selection, set DIP switch 1 to ON. If the supervised transfer switch is installed on theATS,setDIPswitch2toON.

DIP Switch Function

1 Preferred source selection

2 Supervised transfer enable

3 Not used

4 Not used

Figure 7-11 Alarm Board DIP Switches

Preferred Source Selection

The alarm module is required for preferred source selection. To enable the preferred source selection, set DIPswitch1toON. ThenseeSection4.8.3for instructions to select Source N or Source E as the preferred source.

External Alarm

A customer-supplied external alarm horn can be connected to the alarm module at terminal block TB14. Connect to the normally open or normally closed contact as recommended by the alarm manufacturer ’s instructions. See Figure 7-12.

1. Supervised Transfer Switch Connection, P22

2. External Alarm Connection, TB 14

3. Alarm Indicator, LED1

4. DIP Switches

Figure 7-10 Alarm Module

Item Specification

Wire Size #12-22 AWG Cu

GM40764

Contact Voltage Rating

500 mA @ 120 VAC

250 mA @ 240 VAC

Figure 7-12 External Alarm Connection

Specifications

Audible Alarm Setup

The alarm board is equipped with a 90 dB audible alarm. The audible alarm can be set to sound under selected fault conditions. Use the Common Alarms Setup menu to assign functions to the audible alarm. See Section

4.10 for instructions to set Audible Alarm: Y for each function that should trigger the alarm.

Alarm Operation, Normal Mode

In Normal Mode, the horn sounds anytime a fault event happens in the system. The horn continues to sound unless the alarm silence button is pressed. When the fault is cleared, the alarm silence is ended and reset for the next alarm.

TP-6883 4/21100 Section 7 Accessories

Kohler MPac1500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual