Marathon Power TRTC-2002-N1 Maintenance Manual

TABLE OF CONTENTS

BEFORE YOU START: SAFETY ................................................................ 6

Safety Symbols ............................................................................................... 6

Before Getting Started .................................................................................... 7

System Safety Checklist ................................................................................. 7

Battery Safety Checklist .................................................................................. 8

Stand-By Generator ........................................................................................ 8

Future Servicing .............................................................................................. 9

SECTION 1: GLOSSARY ....................................................................... 10

SECTION 2: THEORY OF OPERATION .................................................... 11

Intro ............................................................................................................... 11

2.1 The Advantages ...................................................................................... 11

2.2 System Description ................................................................................. 12

SECTION 3: A TOUR OF YOUR TRTC-2002-N1 .................................... 13

3.1 Front and Back Panel ............................................................................. 13

3.2 Power Transfer Switch ............................................................................ 18

SECTION 4: INSTALLATION .................................................................. 19

Warnings & Tips ............................................................................................ 19

4.1 Mounting ................................................................................................. 19

4.2 Recommended Wiring ............................................................................ 20

4.3 Connecting the Output or Signal Cabinet ................................................ 24

4.4 Connecting the Utility Line Input Power .................................................. 25

4.5 Starting Up the UPS ................................................................................ 26

4.6 Testing the UPS ...................................................................................... 27

4.7 Shutting Down the UPS .......................................................................... 28

4.8 Emergency Shutdown ............................................................................. 29

4.9 Removing the PTS .................................................................................. 30

SECTION 5: OPERATION – LCD INTERFACE ......................................... 31

5.1 Interface Directory ................................................................................... 31

5.2 Menu Tree and Main Screen ................................................................... 32

5.3 Using the LCD Interface .......................................................................... 34

5.6 Operating Modes .................................................................................... 35

5.7 Status ...................................................................................................... 37

5.8 Control .................................................................................................... 38

5.9 Settings ................................................................................................... 39

5.10 Maintenance .........................................................................................40

5.11 Alarm Menu ........................................................................................... 41

5.12 Fault Menu ............................................................................................ 42

5.13 Events Log ............................................................................................ 43

SECTION 6: OPERATION – RS-232 / USB INTERFACE ........................... 44

6.1 Interface Directory ................................................................................... 45

6.2 Menu Tree ............................................................................................... 46

6.3 RS-232 / USB Interface Information ........................................................ 49

6.4 Main Menu .............................................................................................. 51

6.5 Submenus ............................................................................................... 53

6.6 Unit Specifications .................................................................................. 53

6.7 Input / Output Values .............................................................................. 53

6.8 Maintenance ........................................................................................... 53

6.9 Line Slow Detection Parameters ............................................................. 56

6.10 Parameter Change Procedure .............................................................. 56

6.11 Parameter Descriptions......................................................................... 57

SECTION 7: OPERATION – WEB INTERFACE .......................................... 58

7.1 Web Interface Directory ...........................................................................58

7.2 Web Interface .......................................................................................... 58

SECTION 8: ADJUSTMENTS ................................................................. 61

8.1 Back-Up Test .......................................................................................... 61

8.2 Sense Mode - Normal and Generator Waveforms .................................. 62

SECTION 9: MAINTENANCE ................................................................. 63

9.1 Trouble Analysis ..................................................................................... 63

9.2 TRTC-2002-N1 Troubleshooting ............................................................. 64

9.3 PTS Troubleshooting .............................................................................. 65

9.4 Troubleshooting Sequence Chart ........................................................... 66

9.5 Alignment Procedure – Battery Backup Test .......................................... 67

9.6 Preventative Maintenance....................................................................... 68

9.7 Battery Maintenance ............................................................................... 68

APENDICES ....................................................................................... 70

TRTC-2002-N1 Specifications ...................................................................... 70

PTS Specifications ........................................................................................ 72

Battery Care .................................................................................................. 73

HyperTerminal Set-Up .................................................................................. 74

HyperTerminal at a Glance ........................................................................... 76

PuTTY at a Glance ....................................................................................... 77

Step by Step Connecting to Windows XP ..................................................... 78

Step by Step Connecting to Windows 7 ........................................................ 82

Return Instructions .......................................................................... 86

Before You Start: Safety

Indicates presence of DANGEROUS VOLTAGE in the area. Extreme caution should be used.

Indicates ATTENTION to important operating instructions. Follow them as indicated.

DANGER!

ATTENTION!

NOTE / TIP:

Indicates additional information to assist the completion of a procedure or tips for ease of operation.

*SAVE THESE INSTRUCTIONS*

IMPORTANT SAFETY INSTRUCTIONS ARE CONTAINED IN THIS MANUAL

To reduce the risk of electrical shock and to ensure the safe operation of the TRTC-2002-N1, the important safety instructions are marked with the symbols as shown below. These symbols are used throughout this manual and wherever they appear, it indicates that the instructions should only be carried out by qualified personnel.



Safety Symbols



Before Getting Started



System Safety Checklist



Battery Safety Checklist



Stand-By Generator



Servicing



Safety Symbols

 Before Getting Started

Do not expose the TRTC-2002-N1 to rain or moisture.

Total Earth ground leakage current of loads connected to the TRTC-2002-N1 should not exceed 2.4 mA.

The TRTC-2002-N1 generates, uses and can radiate radio frequencies if not installed and tested in accordance with the instructions contained in this manual. It has been tested and found to comply with the limits established for a Class A computing device pursuant to part 15 of FCC rules when it is operated alone. It also complies with the radio interference regulations of DOC, which are designed to provide a reasonable protection against such interference, when this type of equipment is used in a commercial environment. If there is interference to radio or TV reception, which is determined by switching it on and off. Relocate the equipment or use an electrical circuit other than the one used by the TRTC-2002-N1.

DANGER!

Sealed lead-acid batteries with high energy and chemical hazards are used. This manual contains important operation and safety instructions.

DANGER!

IMPORTANT SAFETY PRECAUTIONS

Only qualified personnel should service or supervise the service of the TRTC-2002-N1.

 System Safety Checklist

• Carefully unpack the TRTC-2002-N1. Report any shipping damage at once.

• Read this manual. If you have any questions about safe installation, operations or

maintenance of the system, contact manufacturer service department.

• Before installation, confirm that the voltage and current requirements of the load(s) are

compatible with the system’s output. Confirm that the line voltage and current is compatible with the system’s input requirements.

• The system should be installed on a dedicated power circuit.

• Use proper lifting techniques when moving system.

• The TRTC-2002-N1 has more than one live circuit. It is fed from AC as well as battery power. Power may be present at the output(s) even if the system is disconnected from line power.

• When installing a system in other than a Manufacturer cabinet, ensure that the environment meets the system specifications shown in the Appendix.

 Battery Safety Checklist

DANGER!

NOTE:



High & dangerous voltages are present inside the system. Only qualified personnel

should perform installation and maintenance.

 Live battery wires must not touch the TRTC-2002-N1 chassis or any other metal objects.

This can cause a fire or explosion.

 Inspect the batteries once a year for signs of cracks, leaks, or swelling. Replace as

needed.

 When batteries are in storage, charge them at least once every three months for

optimum performance and to extend their lifetime.



Always replace batteries with the ones of identical type and rating. Never install old or untested batteries. Never mix old with new batteries. Never mix the different amp hour

rated batteries within one system.

 Use insulated tools during servicing.  Remove all rings, watches, jewelry, or other conductive items before working inside the

enclosure.

 Follow local regulations for the disposal of batteries. Recycling is the best method.  Never burn batteries to dispose of them. They may explode.  Do not open the batteries. The contents are toxic.

 Stand-By Generator

If the TRTC-2002-N1 constantly switches between Battery and Line modes because of line fluctuations, the input parameters should be broadened from Normal to Generator (See Section 8.2 “Sense Mode - Normal and Generator Waveforms”).

In generator mode, the acceptable range of input frequency and voltage is expanded to accommodate the voltage and frequency fluctuations created by a generator or a power source of such kind.

Use a generator with electronic speed and voltage controls which typically produces Total Harmonic Distortion in % (THD) of less than 10%. Generators with mechanical governors can force the system to run continuously in Battery mode.

Before installation, compare the generator’s output voltage to the TRTC-2002-N1’s input voltage requirements as listed on both nameplates. To insure the system’s smooth operation, use a generator capable of supplying 2X or twice as much power as required by the total load.

SAVE THE ORIGINAL SHIPPING BOX

When returning the TRTC-2002-N1 for servicing, use the original shipping box with the supplied Styrofoam protectors. Manufacturer is not responsible for damage caused by improper packaging of returned systems.

READ THE OPERATOR’S MANUAL

Before installation, become familiar with the TRTC-2002-N1 by reviewing the procedures and drawings in this manual. If you have any questions about safe installation, operation, or maintenance, contact Manufacturer customer service department.

Complete the following for records & future servicing:

Model No.: TRTC-2002-N1________________ _

Serial No.: ___________________________________

(Above items can be found on the nameplate label attached to the side of the unit)

Products Sales Order No.________________________

TRTC-2002-N1 P/N: ___________________________

Purchase Order No.:____________________________

Purchased from: _

(Following details are for installation location)

Installation date: _

Installed by: _

City: _

State/Province: _

Zip/Postal Code: _

Country: _

Telephone #: ____________________________________________

Fax #: _

E-Mail: ________________________________________

Street names of location: _________________________

Cabinet / controller type: _________________________

Section 1: Glossary

AC ANSI AWG BBS E-BBS DC IEEE EIA ITE KVA LED LCD NEMA NC NO OD PTR UL TB THD

UV VDC

VA VAC

Alternating Current American National Standards Institute American Wire Gage Battery Backup System External Battery Backup System Cabinet Direct Current Institute of Electrical and Electronics Engineers Electronic Industries Association Institute of Transportation Engineers Kilovolt-Ampere Light Emitting Diode Liquid Chrystal Display National Electrical Manufacturers Association Normally Close Normally Open Outside Diameter Power Transfer Relay Underwriters Laboratories Terminal Block Total Harmonic Distortion Ultraviolent Light Volts DC Voltage Ampere Voltage Alternating Current

Section 2: Theory of Operation

 Intro  2.1 The Advantages  2.2 System Description

The traffic signal cabinet is powered continuously when a TRTC-2002-N1 system is installed. The system allows connection for the normal utility power using standard terminal blocks or an optional generator power via standard 30 Amp (optional 50 Amp) generator receptacle. The optional bypass switch redirects utility power to the load and allows the TRTC2002-N1 to be removed for service on a temporary or permanent basis without disrupting the operation of the traffic signal.

With a fully functioning UPS system, the PTS allows utility power to flow out to the traffic cabinet, when the utility line is qualified (within the acceptable range as programmed). If the UPS is not functioning, the PTS will bypass the UPS allowing the utility to flow out to the traffic cabinet. The UPS input is protected with one circuit breaker located on the PTS as well as another one located on the UPS module. When the UPS internal BOOST and BUCK is enabled, the PTS is activated allowing UPS to continuously boost the output when input is lower, buck or lower the output when input is higher or run from batteries when input power is outside the specified acceptable range. The PTS has dual NEMA power receptacles for optional battery heating pads, connecting a vacuum cleaner, or a PC for maintenance.

The smart, temperature compensated internal charger continuously monitors and maintains the batteries in a fully charged state. For the protection of the battery, the charging process is automatically discontinued when the battery temperature exceeds 50 degrees C. When the batteries are fully charged, the smart charger provides a continuously pulsating ON-OFF trickle charge to keep the batteries topped-off or fully charged. When input power is not qualified or is outside the acceptable range, the UPS derives the DC power from the storage tank of four batteries connected in series and maintains output power until the batteries are depleted down to a specified level or the utility power returns within its specified levels. The traffic intersection will continue to operate in full operation AND / OR in flash mode as programmed by the user. Programmable contacts allows the user to place the intersection in flash mode as soon as the input power is lost or after the batteries are depleted down to a certain capacity that is determined and programmed by the user. The amount of back-up time battery power can provide depends on the Amp-hour capacity of the batteries as well as the intersection watt load that requires support.

 2.1 The Advantages Advanced Power Protection Technology

TRTC-2002-N1 is an Uninterruptible Power Supply (UPS) also known as a Battery Backup System (BBS) designed for both indoor and outdoor applications. The TRTC2002-N1 provides continuous power to traffic and signal equipment.

♦ Advanced Communications

The RS232 and/or USB ports allow for local or remote monitoring of the TRTC-2002-N1.

♦ Smart Charging

Simplified TRTC-2002-N1 System Block Diagram

MP Series smart charge technology ensures the batteries are always at peak performance.

♦ User Friendly Supervision

The LCD panel provides “At a Glance” monitoring and control.

♦ Service Friendly

The batteries can be changed without shutting down the intersection loads or the TRTC2002-N1.



2.2 System Description

Purpose: Describes the operation of the TRTC-2002-N1 System.

The TRTC-2002-N1 System provides backup power to traffic control signal equipment. It consists of the PB2000 Uninterruptible Power Supply (UPS) System, the Power Transfer Switch (PTS), and batteries that provide back-up power when the line is unqualified. These three components can be mounted inside an enclosure to provide protection from most weather conditions.

Section 3: A Tour of Your TRTC-2002-N1

TRTC-2002-N1 Front Panel

 3.1 Front Panel  3.2 Power Transfer Switch

 3.1 Front Panel

Purpose: Describes the display, connections and switches on the TRTC-2002-N1 front󱶡

TRTC-2002-N1 )URQW Panel

panel.

1. 48VDC Battery Connector

Connects the battery to the unit. The battery string voltage is 48VDC.

2. Battery Circuit Breaker Acts as an ON/OFF switch for battery power. Must be in the ON position for normal

operation.

3. Battery Voltage Test Points

Battery voltage can be measured at these Test Jacks only when the battery circuit

breaker is turned ON.

TEST JACKS ARE NOT DC POWER OUTLET TERMINALS.

TRTC-2002-N1 Front Panel

NOTE:

4. Liquid Crystal Display (LCD) Control Panel

The UPS can be controlled and monitored via this LCD panel. See Section 5 for further information.

5. AC Input & Output Circuit Breaker

Acts as a line and output power ON/OFF switch to facilitate the unit’s maintenance or

replacement. Must be in the ON position for normal operation.

6. AC Input

Inlet Anderson PP45/4P provided for the input of line power.

7. AC Output

Outlet Anderson PP45/4P provides the connection for the output of line power.

TRTC-2002-N1 Front Panel

8. USB / Serial Interface / RS232 Connector

The USB and /or DB-9 female connector is used to connect the TRTC-2002-N1 to the host computer for remote control, monitoring and calibration via RS232 commands.

For the USB or DB-9 female RS232 connections use computer industry standard

NOTE:

computer cable between the computer’s USB or RS232 port and the TRTC-2002-N1 unit’s USB or RS232 ports.

See Section 4 for more details about connection and use.

TRTC-2002-N1 Front Panel

9. Green Control Terminal Block

This 22 position terminal block provides communication with the intersection controller, controls the Power Transfer Switch (PTS) and Programmable Input contact. Figure below shows its layout and operation.

Green Terminal Block

This terminal block is opto-isolated and shares a common ground with the serial interface. Each of the six programmable contacts can be programmed for one or more functions such as: The Timer, Low Battery and On Batt. The relay contacts are Form C type, i.e. each of the six programmable contacts has Common (C);

Normally Closed (NC) and Normally Open (NO) contact position.

TIP:

NOTE:

• On Batt: This relay energizes when Utility Input line power is unqualified.

• IMPORTANT: When the AC input and output circuit breaker is turned OFF, an auxiliary

switch of the circuit breaker opens which disables the On Batt. contact at the Green Control Terminal Block. This prevents the intersection lights from flashing.

• Low Battery: These relays energize when the battery drops below the programmed

battery capacity. The default value is 47.5VDC or 40% battery capacity.

You can change the preprogrammed value to match the batteries used and the actual operating conditions. See Section 9.7 Battery Maintenance.

• Timer: These relays energize after the unit has been in Battery mode for the

programmed time period. The factory default value is 2 hours. The time can be programmed to be from 15 min. to 8 hours in 15 minute increments.

• Program Input: The programmable input contact can be programmed for one function

such as: Self-test, EXT Alarm, EXT Battery Alarm, EXT Fan Failure, Door Interlock. Jumper the TB 19 & 20 on the Green Control Terminal Block and the program alarm will show on LCD display.

• PTS: TRTC-2002-N1 sends a 48VDC signal from the batteries to the PTS, which

activates the PTS, resulting in transfer from Input power to BBS power. See Section

1.3, Wiring, of this manual for connection instructions.

These contacts have a maximum rating of 1 Amp at 120V. Only the first On Batt contact is illustrated. The remaining 5 contacts for Low Battery, Timer, etc. are similar.

1) 6 sets of programmable contacts have the following factory default settings:

C1, C2 = “On Batt” C3, C4 = “Low Batt @ 47.5VDC” C5, C6 = “Timer @2.00 Hours”

2) User may program each of the six contacts for one or more functions.

10/11

NOTE:

TRTC-2002-N1 Front Panel

10. Battery Temperature Sensor Strain Relief

This secures the Battery Temperature Sensor cord to the panel and prevents connector disconnection during an earthquake or other severe vibrations. First plug the sensor cable into the connector. Then use one of the ties provided in the mounting kit to attach the sensor cord to the strain relief loop. Ensure that the cable is secure.

11. Battery Temp Sensor

It attaches the battery temperature probe to the unit for monitoring battery temperature. The charging voltage is temperature dependent. The microprocessor of the smart charger adjusts the voltage for optimum charging.

The temperature probe connector must be plugged in for normal operation. The

sensor end should be firmly attached to the terminal of the battery.

If the TRTC-2002-N1 is not charging the batteries check the temperature probe. To test the temperature probe unplug it from the face of the UPS. Check the resistance of the temperature probe by inserting the probes of an ohm meter into the top and bottom pins of the connector. The meter should read approximately 12,000 Ohms at 25°C (77 °F). If resistance is not in this range, replace temperature probe.

12. Ext Fan 48VDC

Provides DC Power (48VDC, 1 Amp (Max)), which could be used to power an optional

48VDC fan, mounted inside the enclosure for regulation of the interior temperature.

13. Internal Fan

This microprocessor-controlled fan regulates the unit’s internal temperature. It must not be blocked. The filter in front of the fan is removable for cleaning.

Inspect the filter every 6 months, or as often as required. Clean by removing it, running water through the filter and air-drying before reinstallation.

14. PTS Connector

The PTS Connector connects the TRTC-2002-N1 to the PTS via the Bypass control

wires.

 3.2 Power Transfer Switch

7 8 9

The Power Transfer Switch (PTS) shown below allows the UPS to be removed for service, replacement or maintenance without interrupting power to the traffic cabinet.

Power Transfer Switch Front Panel

1. The wires from the neutral and ground bus of the traffic cabinet are connected to this

terminal block.

2. The Input line power is connected to the terminal block marked with “AC INPUT”.

3. The Output line power is connected to the terminal block marked with “AC OUTPUT”.

4. An optional surge suppressor, external PC, optional battery heater or a vacuum

cleaner for maintenance may be plugged into these receptacles.

5. This “UPS OUT” cord is connected to the OUTPUT AC terminal block on the TRTC-

2002-N1.

6. The Black and Red PTS control wires are connected to the PTS connector on the

TRTC-2002-N1.

7. This “UPS IN” cord is connected to AC INPUT terminal blocks on the TRTC-2002-N1.

8. This circuit breaker provides input power protection for the TRTC-2002-N1.

9. The dual receptacles are protected by this circuit breaker.

Section 4: Installation

DANGER!

TIP:

 Warnings & Tips  4.1 Mounting  4.2 Recommended Wiring  4.3 Connecting the Output or Signal Cabinet 

4.4 Connecting the Utility Line Input Power



4.5 Starting Up the UPS



4.6 Testing the UPS



4.7 Shutting Down the UPS



4.8 Emergency Shutdown

 4.9 Removing the PTS

If this is a new traffic signal installation with Utility AC power going directly to UPS, make sure the upstream circuit breaker feeding the Utility Power is OFF before beginning this step. If this is addition of a UPS to an existing traffic signal cabinet, DO NOT terminate the power cable from the signal cabinet to the UPS at the signal cabinet end until the final step after all other connections have been completed. This will minimize the length of time the traffic signals must be off for final power connection.

There are many different ways that the Utility AC can be wired into the traffic signal cabinet. The intent of this manual is only to explain proper connection of utility AC at the UPS end of the cable. How the Utility AC is routed from the service entrance or

through the traffic signal cabinet (hereafter referred to as the “power source”) to the

UPS shall be determined by a licensed electrician in accordance with local electrical codes.

The suggested method of wiring Utility AC to the UPS from the traffic signal cabinet is to connect the UPS at the traffic cabinet after the main cabinet breaker and surge suppressor so that the UPS is also protected by the cabinet surge suppressor.



4.1 Mounting

Purpose: Describes how to mount the TRTC-2002-N1 System into an enclosure.

The TRTC-2002-N1 components can be mounted inside an existing NEMA or 332 or various other traffic cabinets. They can be shelf mounted in a NEMA or equivalent cabinet. The TRTC-2002-N1 can be bolted into an industry standard 19” rack using the optional ears or brackets, or it can be shelf mounted in a NEMA type enclosure.



Verify the UPSTREAM CIRCUIT BREAKER is off. Verify the AC INOUT & OUTPUT CIRCUIT BREAKER is off. Verify the BATTERY CIRCUIT BREAKER is off.

4.2 Recommended Wiring

Consult a licensed electrician in accordance with local electrical codes.

1. AC Input Cords a. UL Style 1015 CSA TEW 6 or 10 AWG b. 105 stands of 30 AWG tinned copper c. Rating 600V, 105°C, PVC Insulation

2. Power Interconnects between BBS components and 332A terminal blocks and busses. a. UL Style 1015 CSA TEW 10 AWG b. 105 stands of 30 AWG tinned copper c. Rating 600V, 105°C, PVC Insulation

3. Relay connections a. Insulated UL Style CSA TEW 18 AWG b. 16 stands of 30 AWG tinned copper c. Rating 600V, 105°C, PVC Insulation

4. DC Battery Connectors a. Two-Part Modular Harness UL Style 1015 CSA TEW or Welding Style Cable or

equivalent, 6 AWG Stranded and 10 AWG Stranded

Verify the UPS MODE / BYPASS switch is in BYPASS.

Attach optional Battery Temperature Sensor to the middle battery. Plug the connector on

the other end into the TRTC-2002-N1.

Wrap a tie around the strain relief loop and the battery temperature sensor to prevent the connector from disconnecting during an earthquake or other severe vibrations.

Attach External Cabinet Fan into the respective connector on the TRTC-2002-N1.

Wrap a tie around the strain relief loop and the fan to prevent the connector from disconnecting during an earthquake or other severe vibrations.

Connect the BYPASS CONTROL wires to the PTS connector into the TRTC-2002-N1.

Connect the PTS UPS IN to the UPS AC INPUT.

Attach PTS UPS OUT to the UPS AC OUTPUT.

Connect the cable from the batteries to the 48V BATTERY CONNECTOR into the

TRTC-2002-N1.

Each of the six contacts are of form C type, meaning Normally Open (NO), common (C) and Normally Closed (NC) dry contact rated for 1A @ 240VAC. Each of these contacts can be individually programmed to energize and stay latched for ON BATTERY, LOW BATTERY, TIMER, ALARM, FAULT and many other conditions as described in subsequent chapters. The ON BATTERY contact(s) are activated as soon as the unit is transferred to Battery mode. LOW BATTERY contact(s) are activated only in the Battery mode, as soon as the discharged battery reaches the lower value battery capacity as set by user and remains latched as long as the system remains in Battery mode. The TIMER contact(s) are activated only in the Battery mode after the user-programmed time is attained, that can be set in 15 minute intervals from 15 minutes to 8 hours.

Torque status/self-test terminal block to a maximum of 4.4 lb.-in (0.5Nm).

Maximum wire size 14 AWG.

Connect the COMMUNICATION CABLES where appropriate.

SERIAL

MODEM

ETHERNET

 4.3 Connecting the Output or Signal Cabinet

1. Connect a black wire from the VAC Out at the PTS to the Input Hot terminal in the signal cabinet.

2. The wires from Ground and Neutral Bus Bars from the traffic cabinet are extended to PTS

Terminal Block.

3. OPEN the upstream breaker feeding utility power to the signal cabinet.

4. Disconnect the HOT wire (Black) connected between utility and traffic cabinet.

5. The cabinet side HOT wire is connected to “AC OUT” on the PTS.

6. The utility side HOT wire is connected to “VAC IN” on the PTS.

7. Torque the PTS terminal block to a maximum of 10.0 lb-in (1.1 Mm).

DANGER!

TIP:

If the installation is at an active intersection, have law enforcement begin directing traffic before the power to signals is turned off.

through the traffic signal cabinet (hereafter referred to as the “power source”) to the

UPS shall be determined by a licensed electrician in accordance with local electrical codes.

 4.4 Connecting the Utility Line Input Power

Connect the input HOT black wire from utility to “VAC IN” on PTS. Run wires from neutral and ground bus bars of traffic cabinet to PTS neutral & ground terminal blocks.

DANGER!

If the installation is at an active intersection, have law enforcement begin directing traffic before the power to signals is turned off.

Make sure the upstream circuit breaker for the power source is OFF before performing this step. Make sure both the BATTERY CIRCUIT BREAKER on the unit is also off.

Make sure the upstream circuit breaker feeding the utility power is OFF before beginning this step. Leave the NEUTRAL and GROUND wires connected from utility to signal cabinet. Extend the NEUTRAL and GROUND wires from their corresponding bus bars in the traffic cabinet to the terminal block on the PTS.



Verify that the AC Input &

Output as well as the

Battery Circuit Breaker on

the TRTC-2002-N1 are Off.

Place the Manual Bypass

Switch in the UPS

position.

Turn ON the upstream

Utility Input Circuit

Breaker.

Verify the load

has power.

Turn ON the AC Input &

Outout Circuit Breaker.

Turn ON the

Battery

Circuit

Breaker.

LCD display

shows

STANDBY.

In 30 seconds, The LCD display changes to "ON

LINE", the Green Output LED is Lit indicating

Input power to be within acceptable frequrncy

and voltage ranges and the output is powered

from Utility.

TIP:

4.5 Starting Up the UPS

Purpose: Describes how to Start-up the system.

If the system does not perform as described below, see TRTC-2002-N1 Troubleshooting Section 9.2.

Step 1: Turn on the Utility Input Line Power STARTUP PROCEDURE TIPS:

 The UPS automatically starts up in STANBY mode.  After the AC line is qualified (default 30 seconds) the UPS switches to ON LINE mode

 The PTS is fail safe in that the cabinet will always revert to utility power if there is ever

a failure of the UPS or batteries.

 As an intersection safety measure, if there is no AC power and/or the AC breaker is

not ON, the UPS will stay in STANDBY and can only be placed ON BATTERY manually to prevent accidentally leaving the intersection in operation on batter power

without restoring AC power.

Step 2: Turn on the UPS



Turn OFF the

upstream circuit

breaker.

The OUTPUT Green LED will

flash and the LCD displays ON

BATT, indicating that output

AC power is supplied from

battery power.

Observe the Red Alarm LED. If it is on or

flashes, follow the troubleshooting sequence

as below:

1. Investigate the Alarm/Fault.

2. Perform a self-test with the load(s) connected.

3. If it passes the self-test, verify that that loads are operating normally.

4. See the troubleshooting table in the manual.

5. Contact Customer Service.

Turn ON the upstream circuit

breaker.

Within 30 seconds the PTS

switches back to line power.

The Green Output LED is lit

and the display shows

"ON LINE".

TIP:

ATTENTION!

4.6 Testing the UPS

Before turning off the AC power to the intersection as a final test, verify proper installation and ability to go ON BATTERY by placing the MANUAL BYPASS SWITCH to BYPASS. The unit should immediately go ON BATTERY. When the MANUAL BYPASS SWITCH is returned to UPS, the unit should go back On Line after AC Qualify time. Then to test the UPS further, perform the self-test feature via the CONTROL submenu (see Section 5.7 Control).

When performing the test below, if for any reason the unit fails to go ON BATTERY, immediately restore the AC power for the intersection at the upstream circuit breaker.



Place Manual Bypass Switch in

Bypass.

Turn OFF the Battery Circuit

Breaker.

Turn OFF the AC Input & Output

Circuit Breaker.

Unplug the battery connector.

Disconnect the AC input & Output

wires and insulate.

Disconnect, mark and insulate wires

at the Green Control Terminal Block,

the plug for Ext. Fan, the plug for

battery temperature sensor and

the RS232 or USB connector.

Remove and perform maintenance

on the TRTC-2002-N1.

Perform this procedure in the reverse

order to reinstall the unit.

ATTENTION!

IMPORTANT: Place the Manual

Bypass Switch in BYPASS before

doing any maintenance on the unit

or PTS to prevent accidentally losing

power to the traffic signals.

The AC input wires from PTS are

still HOT or Live. Insulate the bare

wires using wire nuts.

4.7 Shutting Down the UPS

Purpose: Describes how to shut down the system components for removal or maintenance.

Shutting down the TRTC-2002-N1 does not necessarily disconnect power to the loads.

ace Mnual Bypass Switch in Bypass.

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Marathon Power TRTC-2002-N1 Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual