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INSTRUCTION MANUAL

FOR

DIGITAL GENSET CONTROLLER

DGC-2020

****

Publication: 9400200990 Revision: B 11/06

INTRODUCTION

This instruction manual provides information about the operation and installation of the DGC-2020 Digital Genset Controller. To accomplish this, the following information is provided:

• General Information and Specifications

• Controls and Indicators

• Functional Description

• Graphical User Interface Operation

• Installation

• Maintenance and Troubleshooting

• Appendices containing Time Overcurrent Characteristic Curves and Modbu s™ Communication

WARNING!

To avoid personal injury or equipment damage, only qualified personnel should perform the procedures in this manual.

NOTE

Be sure that the controller is hard-wired to earth ground with no smaller than 12 AWG copper wire attached to the chassis ground terminal on the rear of the unit. When the controller is configured in a system with other devices, it is recommended to use a separate lead to the ground bus from each unit.

9400200990 Rev B DGC-2020 Introduction i

First Printing: September 2006

Printed in USA

November 2006

CONFIDENTIAL INFORMATION

of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.

It is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide data for every possible contingency regarding installation or operation. The availability and design of all features and options are subject to modification without notice. Should further information be required, contact Basler Electric.

BASLER ELECTRIC

ROUTE 143, BOX 269

HIGHLAND IL 62249 USA

http://www.basler.com, info@basler.com

PHONE +1 618.654.2341 FAX +1 618.654.2351

ii DGC-2020 Introduction 9400200990 Rev B

PRODUCT REVISION HISTORY

The following information provides a historical summary of the changes made to the embedded software (firmware), PC software (BESTCOMSPlus), and hardware of the DGC-2020. The corresponding revisions made to this instruction manual (9400200990) are also summarized. Revisions are listed in chronological order.

Firmware Version Change

1.00.04, 11/06

BESTCOMSPlus Version Change

1.00.07, 11/06

Hardware Version Change

—, 10/06

Manual Revision Change

B, 11/06

• Initial release

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iv DGC-2020 Introduction 9400200990 Rev B

SECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1

SECTION 2 • HUMAN-MACHINE INTERFACE....................................................................................... 2-1

SECTION 3 • FUNCTIONAL DESCRIPTION...........................................................................................3-1

SECTION 4 • BESTCOMSPlus SOFTWARE...........................................................................................4-1

SECTION 5 • BESTlogic+ PROGRAMMABLE LOGIC............................................................................. 5-1

SECTION 6 • INSTALLATION .................................................................................................................. 6-1

SECTION 7 • MAINTENANCE AND TROUBLESHOOTING.................................................................... 7-1

APPENDIX A • TIME OVERCURRENT CHARACTERISTIC CURVES...................................................A-1

APPENDIX B • MODBUS™ COMMUNICATION......................................................................................B-1

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vi DGC-2020 Introduction 9400200990 Rev B

SECTION 1 • GENERAL INFORMATION

TABLE OF CONTENTS

SECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1

DESCRIPTION....................................................................................................................................... 1-1

FEATURES............................................................................................................................................ 1-1

FUNCTIONS .......................................................................................................................................... 1-1

Generator Protection and Metering.................................................................................................... 1-1

Engine Protection and Metering......................................................................................................... 1-1

Event Recording................................................................................................................................. 1-1

Auto-Synchronizer.............................................................................................................................. 1-1

Contact Inputs and Output Contacts .................................................................................................. 1-1

Automatic Transfer Switch Control (Mains Failure)............................................................................ 1-2

Communication................................................................................................................................... 1-2

STYLE NUMBER ................................................................................................................................... 1-2

SPECIFICATIONS ................................................................................................................................. 1-3

Operating Power ................................................................................................................................ 1-3

Power Consumption ........................................................................................................................... 1-3

Battery Ride Through ......................................................................................................................... 1-3

Current Sensing ................................................................................................................................. 1-3

Voltage Sensing ................................................................................................................................. 1-4

Contact Sensing ................................................................................................................................. 1-4

Engine System Inputs ........................................................................................................................ 1-4

Output Contacts ................................................................................................................................. 1-5

Metering.............................................................................................................................................. 1-5

Generator Protection Functions ......................................................................................................... 1-7

Logic Timers....................................................................................................................................... 1-7

Communication Interface ................................................................................................................... 1-8

Real-Time Clock................................................................................................................................. 1-8

Type Tests.......................................................................................................................................... 1-9

Environment ....................................................................................................................................... 1-9

Agency Approvals .............................................................................................................................. 1-9

CE Compliance ................................................................................................................................ 1-10

Physical ............................................................................................................................................ 1-10

Figures

Figure 1-1. DGC-2020 Style Chart ............................................................................................................ 1-3

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ii DGC-2020 General Information 9400200990 Rev B

SECTION 1 • GENERAL INFORMATION

DESCRIPTION

The DGC-2020 Digital Genset Controller provides integrated engine-genset control, protection, and metering in a single package. Microprocessor based technology allows for exact measurement, setpoint adjustment, and timing functions. Front panel controls and indicators enable quick and simple DGC-2020 operation. Basler Electric communication software (BESTCOMSPlus) allows units to be easily customized for each application. Because of the low sensing burden in the DGC-2020, dedicated potential transformers (PTs) are not required. A wide temperature-range liquid crystal display (LCD) with backlighting can be viewed under a wide range of ambient light and temperature conditions.

FEATURES

DGC-2020 Digital Genset Controllers have the following features:

• Local and Remote Generator Control

• Engine and Generator Protection

• Programmable Analog Engine Senders

• ECU Communications via SAE J1939

• 16 Programmable Contact Inputs

• Programmable Logic

• Automatic Transfer Switch Control (Mains Failure)

• Integrated RS485

• Auto Synchronizing

FUNCTIONS

DGC-2020 Digital Genset Controllers perform the following functions:

Generator Protection and Metering

Multifunction generator protection guards against generator overvoltage, undervoltage, underfrequency, and overfrequency. Overcurrent and phase imbalance protection is available as an option. Each generator protection function has an adjustable pickup and time delay setting. Sixteen inverse time curves enable the DGC-2020 to offer overcurrent protection in a variety of applications.

Metered generator parameters include voltage, current, real power (watts), apparent power (VA), and power factor (PF).

Engine Protection and Metering

Engine protection features include oil pressure and coolant temperature monitoring, overcrank protection, ECU specific protection elements, and diagnostic reporting.

Metered engine parameters include, oil pressure, coolant temperature, battery voltage, speed, fuel level, engine load, coolant level (from ECU), ECU specific parameters, and run-time statistics.

Event Recording

An event log retains a history of system events in nonvolatile memory. Up to 30 event types are retained and each record contains a time stamp of the first and last occurrence, and the number of occurrences for each event.

Auto-Synchronizer

An optional automatic synchronizer monitors the bus and generator voltages and supplies discrete raise/lower correction signals to synchronize the generator voltage, frequency, and slip angle with that of the bus.

Contact Inputs and Output Contacts

DGC-2020 controllers have one, dedicated emergency stop contact input and 16 programmable contact inputs. All contact inputs recognize dry contacts. The programmable inputs can be configured to initiate a

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pre-alarm or alarm. A programmable input can be programmed to receive an input from an automatic transfer switch or override DGC-2020 alarms and protection functions. Each programmable input can be assigned a user-defined name for easy identification at the front panel display and in fault records.

Output contacts include three dedicated relays for energizing an engine’s glow plugs, fuel solenoid, and starter solenoid. An additional four user-programmable output contacts are provided if the style number is xxAxxxxxx. If the style number is xxBxxxxxx, an additional twelve output contacts are provided.

Additional contact inputs and output contacts can be accommodated with separate I/O modules. Contact Basler Electric for availability and ordering information.

Automatic Transfer Switch Control (Mains Failure)

The DGC-2020 has the ability to detect a mains failure via a single-phase Bus input. A mains failure is established when any one of the following conditions are met:

• Bus voltage falls below dead bus threshold

• Bus voltage unstable due to overvoltage or undervoltage

• Bus voltage unstable due to overfrequency or underfrequency

At this time, the DGC-2020 will start the genset and when ready, apply power to the load via the genset. When the mains returns and is considered stable, the DGC-2020 will transfer the load back to the mains.

Communication

Standard DGC-2020 communication features include a standard USB port and SAE J1939 interface. Optional communication features include a dial-out modem and RS-485 communication port.

USB Port

A USB communication port can be used with BESTCOMSPlus software to quickly configure a DGC-2020 with the desired settings or retrieve metering values and event log records.

CANBus Interface

A CANBus interface provides high-speed communication between the DGC-2020 and the engine control unit (ECU) on an electronically controlled engine. This interface provides access to oil pressure, coolant temperature, and engine speed data by reading these parameters directly from the ECU. When available, engine diagnostic data can also be accessed. The CANBus interface supports the following protocols:

• SAE J1939 Protocol - Oil pressure, coolant temperature, and engine speed data are received from

the ECU. In addition, DTCs (Diagnostic Trouble Codes) help diagnose any engine or related failures. The engine DTCs are displayed on the front panel of the DGC-2020 and may be obtained using BESTCOMSPlus software.

MTU/MDEC Protocol - A DGC-2020 connected to a genset equipped with an MTU MDEC receives

•

Oil pressure, coolant temperature, and engine speed data from the engine controller, along with various alarms and pre-alarms that are MDEC specific. In addition, the DGC-2020 tracks and displays the active fault codes issued by the MDEC ECU.

Dial-Out Modem

One of two optional, dial-out modems (a US version or international version) enables remote control, monitoring, and setting of the DGC-2020. When an alarm or pre-alarm condition occurs, the DGC-2020 can dial up to four telephone numbers, in sequence, until an answer is received and the condition is annunciated.

RS-485 Port

An optional RS-485 communication port uses the Modbus communication protocol and enables remote control and monitoring of the DGC-2020 over a polled network.

STYLE NUMBER

Standard-order DGC-2020 controllers are identified by a style number which consists of a combination of letters and numbers that define the controller’s electrical characteristics and operational features. The model number, together with the style number, describe the options included in a specific controller. Figure 1-1 illustrates the DGC-2020 style number identification chart.

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Figure 1-1. DGC-2020 Style Chart

For example, if a DGC-2020 style number is 51BNBMEAH, the controller would have the following characteristics and operating features.

5 5 Aac current sensing inputs 1 50/60 hertz nominal generator frequency B 3 fixed-function output contacts and 12 programmable output contacts N No RS-485 communication port B Battery backup for real-time clock during losses of control power M Internal dial-out modem—US version E Enhanced generator protection (undervoltage, phase imbalance, overcurrent, overvoltage,

overfrequency, and underfrequency) A Auto-synchronizer H LCD heater

SPECIFICATIONS

Operating Power

Nominal: 12 or 24 Vdc Range: 6 to 32 Vdc (Withstands cranking ride-through down to 6 Vdc

for 500 ms.)

Terminals: 3 (+), 2 (–), 1 (chassis ground)

Power Consumption

Sleep Mode: 5W with all relays non-energized Normal Operational Mode: 7.9W - Run mode, LCD heater off, 3 relays energized Maximum Operational Mode: 14.2W - Run mode, LCD heater on, 6 relays energized

Battery Ride Through

Withstands cranking ride-through down to 0 V for 50 ms.

Current Sensing

Burden: 1 VA Terminals: 68, 69 (A-phase) 71, 72 (B-phase) 74, 75 (C-phase)

1 Aac Current Sensing

Continuous Rating: 0.02 to 1.0 Aac

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1 Second Rating: 2 Aac

5 Aac Current Sensing

Continuous Rating: 0.1 to 5.0 Aac 1 Second Rating: 10 Aac

Voltage Sensing

Configuration: Line-to-line or line-to-neutral Range: 12 to 576 V rms, line-to-line Frequency: Style selectable, 50/60 Hz or 400 Hz Frequency Range: 10 to 72 Hz for 50/60 style and 10 to 480 Hz for 400 Hz style Burden: 1 VA 1 Second Rating: 720 V rms Generator Sensing Terminals: 41 (A-phase) 39 (B-phase) 37 (C-phase) 35 (Neutral) Bus Sensing Terminals: 45 (A-phase) 43 (B-phase)

Contact Sensing

Contact sensing inputs include 1 emergency stop input and 16 programmable inputs. The emergency stop input accepts normally closed, dry contacts. All programmable inputs accept normally open, dry contacts.

Terminals

Emergency Stop: 46, 47 Programmable Input 1: 30, 2 Input 2: 29, 2 Input 3: 28, 2 Input 4: 27, 2 Input 5: 26, 2 Input 6: 25, 2 Input 7: 24, 2 Input 8: 23, 2 Input 9: 22, 2 Input 10: 21, 2 Input 11: 20, 2 Input 12: 19, 2 Input 13: 18, 2 Input 14: 17, 2 Input 15: 16, 2 Input 16: 15, 2

Engine System Inputs

∗ Stated accuracies are subject to the accuracy of the senders used.

Fuel Level Sensing

Resistance Range: 33 to 240 Ω nominal Terminals: 9, 11 (sender common)

Coolant Temperature Sensing

Resistance Range: 62.6 to 637.5 Ω nominal Terminals: 10, 11 (sender common)

Oil Pressure Sensing

Resistance Range: 34 to 240 Ω nominal Terminals: 8, 11 (sender common)

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Engine Speed Sensing

Magnetic Pickup Voltage Range: 3 to 35 V peak (6 to 70 V peak-peak) Frequency Range: 32 to 10,000 Hz Terminals: 31 (+), 32 (–) Generator Voltage Range: 12 to 576 V rms Terminals: 41 (A-phase) 39 (B-phase) 37 (C-phase)

Output Contacts

Fuel Solenoid, Engine Crank, and Pre-Start Relays

Rating: 30 Adc at 28 Vdc—make, break, and carry ∗ Terminals Fuel Solenoid: RUN – NO, COM Pre-Start: PRE – NO, COM Crank: START – NO, COM

Programmable Relays (12)

Rating: 2 Adc at 30 Vdc—make, break, and carry Terminals† Output 1: 52, 51 (common) Output 2: 53, 51 (common) Output 3: 54, 51 (common) Output 4: 56, 55 (common) Output 5: 57, 55 (common) Output 6: 58, 55 (common) Output 7: 60, 59 (common) Output 8: 61, 59 (common) Output 9: 62, 59 (common) Output 10: 64, 63 (common) Output 11: 65, 63 (common) Output 12: 66, 63 (common)

∗ Contact rating is reduced for units used in hazardous locations.

† The number of programmable output contacts provided is determined by the output contacts

character of the DGC-2020 style number. Controllers with output contacts option A have 4 program-

mable outputs (Outputs 1, 2, 3, and 4). Controllers with output contacts option B have 12

programmable outputs.

The programmable relays share common terminals: terminal 51 is used for outputs 1, 2, and 3,

terminal 55 is used for outputs 4, 5, and 6, terminal 59 is used for outputs 7, 8, and 9, 63 is used for

outputs 10, 11, and 12.

Metering

Generator Voltage (rms)

Metering Range: 0 to 576 Vac (direct measurement) 577 to 9,999 Vac (through VT using VT ratio setting) VT Ratio Range: 1:1 to 125:1 in primary increments of 1 Accuracy: ∗ ±1.0% of programmed rated voltage or ±2 Vac Display Resolution: 1 Vac

∗ Voltage metering indicates 0 V when generator voltage is below 2% of the full-scale rating.

Generator Current (rms)

Generator current is measured at the secondary windings of user-supplied 1 A or 5 A CTs. Metering Range: 0 to 5,000 Aac

9400200990 Rev B DGC-2020 General Information 1-5

CT Primary Range: 1 to 5,000 Aac in primary increments of 1 Aac Accuracy: ∗ ±1.0% of programmed rated current or ±2 Aac Display Resolution: 1 Aac

∗ Current metering indicates 0 A when generator current is below 2% of the full-scale rating.

Generator Frequency

Generator frequency is sensed through the generator voltage input. Metering Range: 10 to 72 Hz (50/60 Hz)

10 to 480 (400 Hz) Accuracy: ±0.25% or 0.05 Hz Display Resolution: 0.1 Hz

Apparent Power

Indicates total kVA and individual line kVA (4-wire, line-to-neutral or 3-wire, line-to-line). Measurement/Calculation Methods

Total: kVA = (V

× IL ×√3) ÷ 1000

L-L

4-Wire, Line-to-Neutral: kVA calculated with respect to neutral 3-Wire, Line-to-Line: A-phase kVA = V B-phase kVA = V C-phase kVA = V

× IA ÷ 1000 ÷ √3

× IB ÷ 1000 ÷ √3

× IC ÷ 1000 ÷ √3

Accuracy: ±3% or the full-scale indication or ±2 kVA ∗† ∗ kVA metering indicates 0 kVA when the generator kVA is below 2% of the full-scale rating. † Applies when temperature is between -40°C to +70°C.

Power Factor

Metering Range: 0.2 leading to 0.2 lagging Calculation Method: PF = P (3-phase average) ÷ S (3-phase average) Accuracy: ±0.02 ∗

∗ Applies when temperature is between -40°C to +70°C.

Real Power

Indicates total kW and individual line kW (4-wire, line-to-neutral or 3-wire line-to-line) Measurement/Calculation Methods

Total: PF × Total kVA 4-Wire, Line-to-Neutral: kW calculated with respect to neutral

3-Wire, Line-to-Line: A-phase kW = V B-phase kVA = V C-phase kVA = V

× IA × PF ÷ 1000 ÷ √3

× IB × PF ÷ 1000 ÷ √3

× IC × PF ÷ 1000 ÷ √3

Accuracy: ±3% of the full-scale indication or ±2 kW ∗† ∗ kW metering indicates 0 kW when the generator kW is below 2% of the full-scale rating. † Applies when temperature is between -40°C to +70°C.

Oil Pressure

Metering Range: 0 to 145 psi or 0 to 1,000 kPa Accuracy: ±3% of actual indication or ±2 psi or ±12 kPa (subject to accuracy of

sender)

Display Resolution: 1 psi or 1 kPa

Coolant Temperature

Metering Range: –40 to 410°F or –40 to 210°C Accuracy: ±3% or actual indication or ±2° (subject to accuracy of sender)

Battery Voltage

Metering Range: 6 to 32 Vdc Accuracy: ±3% of actual indication or ±0.2 Vdc Display Resolution: 0.1 Vdc

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Engine RPM

Metering Range: 0 to 4,500 rpm Accuracy: ∗ ±2% of actual indication or ±2 rpm Display Resolution: 2 rpm

∗ When engine speed is below 2% of full-scale, reported rpm is 0.

Engine Run Time

Engine run time is retained in nonvolatile memory. Metering Range: 0 to 99,999 h

Update Interval: 6 min Accuracy: ±1% of actual indication or ±12 min Display Resolution: 1/10 hour

Maintenance Timer

Maintenance timer indicates the time remaining until genset service is due. Value is retained in nonvolatile memory.

Metering Range: 0 to 5,000 h Update Interval: 6 min Accuracy: ±1% or actual indication or ±12 min Display Resolution: 1/10 hour

Fuel Level

Metering Range: 0 to 100% Accuracy: ±2% (subject to accuracy of sender) Display Resolution: 1.0%

Generator Protection Functions

Overvoltage (59) and Undervoltage (27)

Pickup Range: 70 to 576 Vac Pickup Increment: 1 Vac Inhibit Frequency Range: 20 to 400 Hz (27 function only) Activation Delay Range: 0 to 30 s Activation Delay Increment: 0.1 s

Underfrequency (81U) and Overfrequency (81O)

Pickup Range: 45 to 66 Hz (50/60 Hz nominal) 360 to 440 Hz (400 Hz nominal) Pickup Increment: 0.1 Hz (50/60 Hz nominal)

0.1 Hz (400 Hz nominal) Activation Delay Range: 0 to 30 s Activation Delay Increment: 0.1 s Inhibit Voltage Range: 70 to 576 Vac (81U function only)

Overcurrent (51) (Optional)

Pickup Range: 0.18 to 1.18 Aac (1 A current sensing)

0.9 to 7.75 Aac (5 A current sensing) Time Dial Range: 0 to 30 s (fixed time curve) 0 to 9.9 (inverse curve time multiplier) Time Dial Increment: 0.1

Inverse Time Curves: See Appendix A, Time Overcurrent Characteristic Curves

Phase Imbalance (47) (Optional)

Pickup Range: 5 to 100 Vac Pickup Increment: 1 Vac Activation Delay Range: 0 to 30 s Activation Delay Increment: 0.1 s

Logic Timers

Range: 0 to 10 s

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Increment: 0.1 s Accuracy: ±15 ms

Communication Interface

USB

Specification Compatibility: USB 2.0 Data Transfer Speed: 9600 baud Connector Type: Mini-B jack

RS-485 (Optional)

Baud: 9600 Data Bits: 8 Parity: None Stop Bits: 1 Terminals: 14 (A), 13 (B), and 12 (shield)

CANBus

Differential Bus Voltage: 1.5 to 3 Vdc Maximum Voltage: –32 to +32 Vdc with respect to negative battery terminal Communication Rate: 250 kb/s Terminals: 48 (low), 49 (high), and 50 (shield)

Modem (Optional)

Connector Type: RJ-11 jack

Real-Time Clock

Clock has leap year and selectable daylight saving time correction. Backup capacitor and optional backup battery sustain timekeeping during losses of DGC-2020 operating power.

Resolution: 1 s Accuracy: ±1.73 s/d at 25°C

Clock Holdup

Battery Holdup Time (Optional): Approximately 10 yrs Battery Type: Rayovac BR2032, lithium, coin-type, 3 Vdc, 190 mAh Basler Electric P/N 38526

CAUTION

Replacement of the backup battery for the real-time clock should be performed

only by qualified personnel.

CAUTION

It is recommended that the battery be removed if the DGC-2020 is to be operated

in a salt-fog environment. Salt-fog is known to be conductive and may short-

circuit the battery.

NOTE

Do not short-circuit the battery, reverse battery polarity, or attempt to recharge

the battery. Observe polarity markings on the battery socket while inserting a

new battery. The battery polarity must be correct in order to provide backup for

the real-time clock.

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Type Tests

Shock and Vibration: EN60068-2-6 Dielectric Strength: IEC 255-5 Impulse: EN60664-1 Transients: EN61000-4-4 Static Discharge: EN61000-4-2

Shock

15 G in 3 perpendicular planes

Vibration

Swept over the following ranges for 12 sweeps in each of three mutually perpendicular planes with each 15-minute sweep consisting of the following:

5 to 29 to 5 Hz: 1.5 G peak for 5 min. 29 to 52 to 29 Hz: 0.036” DECS-A for 2.5 min. 52 to 500 to 52 Hz: 5 G peak for 7.5 min.

Radio Interference

Type tested using a 5 W, hand-held transceiver operating at random frequencies centered around 144 and 440 MHz with the antenna located within 150 mm (6”) of the device in both vertical and horizontal planes.

HALT (Highly Accelerated Life Testing)

Halt Testing is a method used by many high quality manufacturers to prove that their products will provide the user with many years of reliable service. Halt testing is a method to subject the device to extremes in temperature, shock, and vibration to simulate years of operation, but in a much shorter period span. Halt testing allows Basler to evaluate all possible design elements that will add to the increase in the life of this device. As an example of some of the extreme testing conditions, the DGC-2020 was subjected to Temperature Tests (Tested over a temperature range of -100°C to +115°C),

Vibration Tests (Swept

over a frequency of 5 to 50 G at +20°C), and Temperature/Vibration Tests (Tested at 40 G over a temperature range of -80°C to +90°C). Combined temperature and vibration testing at these extremes proves that the DGC-2020 design is the most rugged device of its type. Please note that the vibration and temperature extremes noted in this paragraph are specific to HALT testing and do not reflect recommended operation level. These operational ratings are included in Section 1 of this manual.

Ignition System

Tested in closed proximity to an unshielded, unsuppressed Altronic DISN 800 Ignition System.

Environment

Temperature Operating: –40 to 70°C (–40 to 158°F)∗ Storage: –40 to 85°C (–40 to 185°F) Humidity: IEC 68-2-38 Salt Fog: ASTM B 17-73, IEC 68-2-11 Ingress Protection: IEC IP54 for front panel

∗ Display operation is maintained at -40°C when used with an optional LCD heater. Refer to Figure 1-1, DGC-2020 Style Chart for ordering information. Display operation is maintained at -20°C when the optional LCD heater is not used.

Agency Approvals

UL/CSA Approvals

“cURus” approved to UL 508 R and CSA C22.2 No.14

CAUTION

To follow UL/CSA guidelines, replacement of the backup battery for the real-time clock should be performed only by qualified personnel.

9400200990 Rev B DGC-2020 General Information 1-9

NFPA Compliance Complies with NFPA Standard 110, Standard for Emergency and Standby Power.

CE Compliance

This product complies with the requirements of the following EC Directives:

• Low Voltage Directive (LVD) - 73/23/EEC as amended by 93/68/EEC

• Electromagnetic Compatibility (EMC) - 89/336/EEC as amended by 92/31/EEC and 93/68/EEC

This product conforms to the following Harmonized Standards:

• EN 50178:1997 - Electronic Equipment for use in Power Installations

• EN 61000-6-4:2001 - Electromagnetic Compatibility (EMC), Generic Standards, Emission Standard

for Industrial Environments

• EN 61000-6-2:2001 - Electromagnetic Compatibility (EMC), Generic Standards, Immunity for Industrial Environments

Physical

Weight: 2 kg (4.4 lb)

Dimensions: See Section 6, Installation.

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SECTION 2 • HUMAN-MACHINE INTERFACE

TABLE OF CONTENTS

SECTION 2 • HUMAN-MACHINE INTERFACE.......................................................................................2-1

INTRODUCTION....................................................................................................................................2-1

FRONT PANEL......................................................................................................................................2-1

DISPLAY OPERATION.......................................................................................................................... 2-2

Login and Permissions....................................................................................................................... 2-2

Summary Screen and Configurable Metering....................................................................................2-3

Sleep Mode ........................................................................................................................................ 2-4

Changing a Setting.............................................................................................................................2-4

Front Panel Display Structure ............................................................................................................ 2-4

REAR PANEL ...................................................................................................................................... 2-11

Figures

Figure 2-1. Front Panel HMI......................................................................................................................2-1

Figure 2-2. Metering Screen Branches ..................................................................................................... 2-5

Figure 2-3. Settings Screen Branches ...................................................................................................... 2-6

Figure 2-4. General Settings Screen Branches......................................................................................... 2-6

Figure 2-5. Communications Screen Branches......................................................................................... 2-7

Figure 2-6. System Params Screen Branches.......................................................................................... 2-7

Figure 2-7. Alarm Configuration Screen Branches....................................................................................2-8

Figure 2-8. Generator Protection Screen Branches..................................................................................2-9

Figure 2-9. Breaker Management Screen Branches............................................................................... 2-10

Figure 2-10. DGC-2020 Rear Panel HMI................................................................................................ 2-11

Tables

Table 2-1. Front Panel HMI Descriptions.................................................................................................. 2-2

Table 2-2. Rear Panel HMI Descriptions.................................................................................................2-11

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ii DGC-2020 Human-Machine Interface 9400200990 Rev B

SECTION 2 • HUMAN-MACHINE INTERFACE

INTRODUCTION

This section describes the components of the DGC-2020 human-machine interface (HMI). DGC-2020 HMI components are located on the front panel (controls and indicators) and the rear panel (terminals and connectors).

FRONT PANEL

Figure 2-1 illustrates the front panel HMI of the DGC-2020. Table 2-1 lists the call-outs of Figure 2-1 along with a description of each HMI component.

Figure 2-1. Front Panel HMI

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Table 2-1. Front Panel HMI Descriptions

Locator Description

A Liquid Crystal Display. The backlit, 64 by 128 pixel LCD serves as the local information

source for metering, alarms, pre-alarms, and protective functions. Display operation is maintained at -20°C. An optional LCD heater maintains display operation at -40°C.

B Not in Auto Indicator. This red LED lights when the DGC-2020 is not operating in Auto

mode.

C Alarm Indicator. This red LED lights continuously during alarm conditions and flashes

during pre-alarm conditions.

D Supplying Load Indicator. This green LE D lights when the generator current is greater

than EPS threshold current.

E Alarm Silence Pushbutton. Pressing this button opens the relay output programmed as

the horn output.

F Lamp Test Pushbutton. Pressing this button tests the DGC-2020 indicators by exercising

all LCD pixels and lighting all LEDs.

G Auto Pushb utton and Mode Indicator. Pressing the Auto button places the DGC-2020 in

Auto mode. The green Auto mode LED lights when Auto mode is active.

H Off Pushbutton and Mode Indicator. Pressing this button places the DGC-2020 in Off

mode. The red Off mode LED lights when the DGC-2020 is in Off mode.

I Run Pushbutton and Mode Indicator. Pressing this button places the DGC-2020 in Run

mode. The green Run mode LED lights when Run mode is active.

J Reset Pushbutton. This button is pressed to cancel a settings editing session and discard

any settings changes. When pressed, this button also resets the Breaker Management Pre-Alarms.

K Arrow Pushbuttons. These four buttons are used to navigate through the front panel

display menus and modify settings. The left- and right-arrow buttons are used to navigate through the menu levels. The right-

arrow button is pressed to move downward through the menu levels and the left-arrow button is pressed to move upward.

Within a level, the up-arrow and down-arrow buttons are used to move among items within the menu level. Pressing the down-arrow button moves to items lower in the list. Pressing the up-arrow button moves to items higher in the list.

During a settings editing session, the up- and down-arrow buttons are used to raise and lower the value of the selected setting.

L Edit Pushbutton. Pressing this button starts an editing session and enables changes to

DGC-2020 settings. At the conclusion of an editing session, the Edit pushbutton is pressed again to save the setting changes.

DISPLAY OPERATION

The front panel display is used to make settings changes and display metering values. Refer to call-outs J, K, and L in Table 2-1 for information on changing settings through the front panel and navigating through the Metering screens.

Login and Permissions

Login To login, navigate to the SETTINGS, ENTER PASSWORD screen and press the Edit key. Use the

Up/Down arrow keys to scroll through the characters. Use the Left/Right arrow keys to enter more

characters. Once the password has been entered, press the Edit key to login. A LOGOUT selection now appears in the list of SETTINGS. To logout, navigate to SETTINGS, LOGOUT and press the Edit key. The LOGOUT selection is removed from the SETTINGS list.

2-2 DGC-2020 Human-Machine Interface 9400200990 Rev B

Permissions

Communications access through the front panel will not be granted if communications access is active through the modem or USB. In this case, the front panel will alternately display REMOTE COMMS, FRONT PANEL IS READ ONLY and the summary screen. Remote access must be ended before gaining access through the front panel.

Summary Screen and Configurable Metering

The summary screen can be set to standard or scrolling. When set to standard, only the following are displayed:

• VOLT

• AMP

• PH

• Hz

• OIL

• FUEL

• TEMP

• BATT

When the summary screen is set to scrolling, you can select/configure the metering values that are displayed. Up to 20 values can be displayed and these values will scroll at a delay time specified by the user. To select a standard or scrolling summary, navigate to the SETTINGS, GENERAL SETTINGS, FRONT PANEL HMI screen and edit the SUMMARY VIEW. The SCROLL DELAY setting is also found on this screen.

To select the scrolling values, navigate to the SETTINGS, GENERAL SETTINGS, FRONT PANEL HMI screen and edit the CONFIGURABLE METERING. The following values may be selected by the user to be placed in the scrolling summary:

• NONE (Removes a line from the scrolling list)

• BLANK (Shows nothing on this line)

• OIL P

• TEMP

• BATT V

• RPM

• RPM SRC

• FUEL

• RUN HRS

• GEN VAB

• GEN VBC

• GEN VCA

• GEN VAN

• GEN VBN

• GEN VCN

• BUS Hz

• BUS V

• GEN Hz

• GEN PF

• GEN KWH

• GEN IA

• GEN IB

• GEN IC

• KW A

• KW B

• KW C

• KW TOT

• KVA A

• KVA B

• KVA C

9400200990 Rev B DGC-2020 Human-Machi n e Interface 2-3

Sleep Mode

Sleep mode serves as a power saving feature. If the DGC-2020 is in Off mode or Auto mode not running and a key is not pressed for more than 15 minutes, the front panel LCD backlight and LCD heater (optional) are turned off. The DGC-2020 resumes normal display operation when any front panel button is pressed or the genset is started remotely via the ATS input. If needed, Sleep mode can be permanently disabled via BESTCOMSPlus or the front panel.

Changing a Setting

To change a setting, navigate to the setting you want to change and press the Edit key. If you are not already logged in, you will be asked to enter your password at this time. Use the Up/Down arrows to raise or lower the value. Press the Edit key again when finished.

Front Panel Display Structure

The front panel display begins with the SUMMARY SCREEN. Pressing the Right arrow key will open the MAIN MENU screen. The MAIN MENU screen consists of METERING and SETTINGS. The METERING screen branches are shown in Figure 2-2. The SETTINGS screen branches are shown in Figures 2-3 through 2-9.

2-4 DGC-2020 Human-Machine Interface 9400200990 Rev B

METERING

ENGINE GENERATOR POWER RUN STATISTICS ALARMS-STATUS

P0042-23 10-02-06

ENGINE

OIL PRESSURE COOLANT TEMP BATTERY VOLT RPM SPEED SRC FUEL LEVEL ENGINE LOAD TOTAL RUN TM HRS TO MAINT

GENERATOR

GEN VAB GEN VBC GEN VCA GEN VAN GEN VBN GEN VCN GEN FREQ GEN AMPS A GEN AMPS B GEN AMPS C BUS V BUS FREQ

POWER

kW A kW B kW C kW TOTAL kVA A kVA B kVA C kVA TOTAL PF

CUMULATIVE

CUMULATIVE TOTAL RUN TIME LOADED RUN TIME UNLOADED RUN TIME

SESSION

SESSION TOTAL RUN TIME LOADED RUN TIME UNLOADED RUN TIME

STATUS

EPS SUPP. LOAD GEN BREAKER MAINS BREAKER

INPUTS

INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 INPUT 8 INPUT 9 INPUT 10 INPUT 11 INPUT 12 INPUT 13 INPUT 14 INPUT 15 INPUT 16

RUN STATISTICS

CUMULATIVE SESSION

ALARMS-STATUS

ALARMS PRE-ALARMS STATUS INPUTS OUTPUTS EVENT LOG J1939 DATA J1939 ENGINE CONFIG J1939 ACTIVE DTC J1939 PREV DTC MDEC FAULT CODES

Figure 2-2. Metering Screen Branches

OUTPUTS

OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 (Optional) OUTPUT 6 (Optional) OUTPUT 7 (Optional) OUTPUT 8 (Optional) OUTPUT 9 (Optional) OUTPUT 10 (Optional) OUTPUT 11 (Optional) OUTPUT 12 (Optional)

EVENT LOG

EVENT

ACTIVE OCCURRENCE COUNT FIRST DATE FIRST TIME LAST DATE LAST TIME

9400200990 Rev B DGC-2020 Human-Machi n e Interface 2-5

SETTINGS

GENERAL SETTINGS

GENERAL SETTINGS COMMUNICATIONS SYSTEM PARAMS ALARM CONFIGURATION GENERATOR PROTECTION BREAKER MANAGEMENT ENTER PASSWORD

P0042-24

09-27-06

Refer to Figure 2-4

COMMUNICATIONS

Refer to Figure 2-5

SYSTEM PARAMS

Refer to Figure 2-6

ALARM CONFIGURATION

Refer to Figure 2-7

GENERATOR PROTECTION

Refer to Figure 2-8

BREAKER MANAGEMENT

Refer to Figure 2-9

Figure 2-3. Settings Screen Branches

GENERAL SETTINGS

FRONT PANEL HMI

FRONT PANEL HMI CONFIGURE DATE/TIME VIEW DATE/TIME VERSION INFO

P0042-25

09-27-06

Figure 2-4. General Settings Screen Branches

SUMMARY VIEW SCROLL DELAY LCD CONTRAST SLEEP MODE LANGUAGE CONFIGURABLE METERING

CONFIGURE DATE/TIME

HOURS MINUTES SECONDS MONTH DAY YEAR

VERSION INFO

FIRMWARE VERSION BOOT CODE SERIAL NUMBER PART NUMBER MODEL NUMBER

2-6 DGC-2020 Human-Machine Interface 9400200990 Rev B

COMMUNICATIONS

CANBUS SETUP

CANBUS ENABLE

RS485 SETUP

P0042-26

09-27-06

RS485 SETUP

COMM BAUD COMM PARITY MODBUS ADDR

Figure 2-5. Communications Screen Branches

SYSTEM PARAMS

SYSTEM SETTINGS CRANK SETTINGS SENSING TRANS ENGINE STATISTICS

P0042-27

09-27-06

SYSTEM SETTINGS

GEN CONNECT RATED kW RATED VOLTS RATED FREQ RATED RPM COOLDWN TIME EPS THRESHLD FUEL LVL TYP SYSTEM UNITS BATTERY VOLT FLYWHL TEETH SPEED SOURCE MAINT RESET NFPA LEVEL HORN 1 PHASE O-RIDE

CRANK SETTINGS

DISCNCT LMIT PRECRNK DELY PRESTRT CNTCT STYLE # CYCLES CYCLE TIME

SENSING TRANS

GEN PT PRI V GEN PT SEC V GEN CT PRI A BUS PT PRI V BUS PT SEC V

ENGINE STATISTICS

START MONTH START DAY START YEAR # STARTS HRS TO MAINT kW-Hrs TOTAL HRS LOADED HRS UNLOADED HRS

Figure 2-6. System Params Screen Branches

9400200990 Rev B DGC-2020 Human-Machi n e Interface 2-7

ALARM CONFIGURATION

PRE-ALARMS ALARMS SENDER FAIL

P0042-27

09-27-06

PRE-ALARMS

HIGH COOLANT TEMP LOW COOLANT TEMP LOW OIL PRESSURE LOW FUEL LEVEL ENGINE OVERLOAD MAINTENANCE INTERVAL BATTERY OVERVOLTAGE LOW BATTERY VOLTAGE WEAK BATTERY VOLTAGE HIGH FUEL LEVEL

ENABLE and THRESHOLD settings for High Coolant Temp, Low Coolant Temp, Low Oil Pressure, Low Fuel Level, Engine Overload, Maintenance Interval, and Battery Overvoltage.

ENABLE, THRESHOLD, and ACTIVTN DLY settings for Low Battery Voltage, Weak Battery Voltage, and High Fuel Level.

ALARMS

HIGH COOLANT TEMP

ENABLE, THRESHOLD, and ARMING DELAY settings for High Coolant Temp and Low Oil Pressure.

LOW OIL PRESSURE LOW FUEL LEVEL OVERSPEED

SENDER FAIL

COOL TEMP SENDR FAIL OIL PRESS SENDR FAIL

ENABLE, THRESHOLD, and ACTIVATN DELAY settings for Low Fuel Level and Overspeed.

CONFIG TYPE and ACTIVATN DLY settings for Cool Temp Sendr Fail, Oil Press Sendr Fail, Fuel Levl Sendr Fail, and Voltage Sense Fail.

FUEL LEVL SENDR FAIL VOLTAGE SENSE FAIL SPEED SENDR FAIL

TIME DELAY setting for Speed Sendr Fail.

Figure 2-7. Alarm Configuration Screen Branches

2-8 DGC-2020 Human-Machine Interface 9400200990 Rev B

GENERATOR PROTECTION

51 OVERCURRENT (Option) 27 UNDERVOLTAGE 59 OVERVOLTAGE 47 PHASE IMBALANCE (Option) 81 O/U FREQUENCY

P0042-29 09-27-06

51 OVERCURRENT

LOW LINE OVERRIDE 3 PHASE SETTINGS 1 PHASE SETTINGS

LOW LINE OVERRIDE

SCALE FACTOR

3 PHASE SETTINGS

PICKUP TIME DIAL CURVE ALARM CONFIG

1 PHASE SETTINGS

PICKUP TIME DIAL CURVE ALARM CONFIG

27 UNDERVOLTAGE

LOW LINE OVERRIDE 3 PHASE SETTINGS 1 PHASE SETTINGS

59 OVERVOLTAGE

LOW LINE OVERRIDE 3 PHASE SETTINGS 1 PHASE SETTINGS

47 PHASE IMBALANCE

PICKUP TIME DELAY ALARM CONFIG

LOW LINE OVERRIDE

SCALE FACTOR

3 PHASE SETTINGS

PICKUP TIME DELAY FREQ INHIBIT ALARM CONFIG

1 PHASE SETTINGS

PICKUP TIME DELAY FREQ INHIBIT ALARM CONFIG

LOW LINE OVERRIDE

SCALE FACTOR

3 PHASE SETTINGS

PICKUP TIME DELAY ALARM CONFIG

1 PHASE SETTINGS

PICKUP TIME DELAY ALARM CONFIG

81 O/U FREQUENCY

UNDERFREQUENCY OVERFREQUENCY

UNDERFREQUENCY

INHIBIT VOLTS PICKUP TIME DELAY ALARM CONFIG

OVERFREQUENCY

PICKUP TIME DELAY ALARM CONFIG

Figure 2-8. Generator Protection Screen Branches

9400200990 Rev B DGC-2020 Human-Machi n e Interface 2-9

BREAKER MANAGEMENT

MAINS FAIL TRANSFER BREAKER HARDWARE BUS CONDITION DETECT SYNCHRONIZER AVR BIAS CONTROL GOV BIAS CONTROL

P0042-30

09-29-06

MAINS FAIL TRANSFER

ENABLE

BREAKER HARDWARE

CLOSE WAIT TIME GEN BREAKER MAINS BREAKER

CLOSE WAIT TIME

TIME

GEN BREAKER

CONTINUOUS OPEN PULSE CLOSE PULSE CLOSING TIME

MAINS BREAKER

CONFIGURED

BUS CONDITION DETECT

GEN DEAD GEN STABLE GEN FAILED BUS DEAD BUS STABLE BUS FAILED

SYNCHRONIZER

TYPE SLIP FREQ REGUL OFFSET CLOSNG ANGLE VS>VD TIME DELAY FAIL DELAY

GEN DEAD

THRESHOLD TIME DELAY

GEN STABLE

OV PICKUP OV DROPOUT UV PICKUP UV DROPOUT OF PICKUP OF DROPOUT UF PICKUP UF DROPOUT TIME DELAY

GEN FAILED

TIME DELAY

BUS DEAD

THRESHOLD TIME DELAY

BUS STABLE

OV PICKUP OV DROPOUT UV PICKUP UV DROPOUT OF PICKUP OF DROPOUT UF PICKUP UF DROPOUT TIME DELAY

BUS FAILED

TIME DELAY

AVR BIAS CONTROL

CONTACT

GOV BIAS CONTROL

CONTACT

TYPE

CONTACT

TYPE

Figure 2-9. Breaker Management Screen Branches

2-10 DG C-2020 Human-M achi n e Interface 9400200990 Rev B

REAR PANEL

All DGC-2020 terminals and connectors are located on the rear panel. Rear panel terminals and connectors are illustrated in Figure 2-10. (To show the terminals and connectors, Figure 2-10 shows the DGC-2020 with the rear cover removed.) Table 2-2 lists the call-outs of Figure 2-10 along with a description of each connector type.

Figure 2-10. DGC-2020 Rear Panel HMI

Table 2-2. Rear Panel HMI Descriptions

Locator Description

A, D The majority of external, DGC-2020 wiring is terminated at 15-position connectors with

compression terminals. These connectors plug into headers on the DGC-2020. The connectors and headers have a dovetailed edge that ensures proper connector orientation. Each connector and header is uniquely keyed to ensure that a connector mates only with the correct header. Connector screw terminals accept a maximum wire size of 12 AWG.

B The mini-B USB socket mates with a standard USB cable and is used with a PC running

BESTCOMSPlus software for local communication with the DGC-2020.

C DGC-2020 controllers with an option al, internal, dial-out modem connect to a telephone

line through a USOC RJ-11 jack.

E Connections to the DGC-2020 Start (starter), Run (fuel solenoid), and Pre (glow plug)

output contacts are made directly to each relay through quarter-inch, male, quick-connect terminals.

F An optional battery backup for the real-time clock is available when ordering.

9400200990 Rev B DGC-2020 Human-Machi n e Interface 2-11

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2-12 DG C-2020 Human-M achi n e Interface 9400200990 Rev B

SECTION 3 • FUNCTIONAL DESCRIPTION

TABLE OF CONTENTS

SECTION 3 • FUNCTIONAL DESCRIPTION...........................................................................................3-1

INTRODUCTION....................................................................................................................................3-1

DGC-2020 FUNCTION BLOCKS...........................................................................................................3-1

Power Supply ..................................................................................................................................... 3-1

Microprocessor...................................................................................................................................3-1

Generator Voltage Sensing Inputs..................................................................................................... 3-2

Bus Voltage Sensing Inputs...............................................................................................................3-2

Current Sensing Inputs.......................................................................................................................3-2

Analog Engine Sender Inputs.............................................................................................................3-2

Speed Signal Inputs...........................................................................................................................3-3

Contact Inputs .................................................................................................................................... 3-3

Front Panel HMI................................................................................................................................. 3-4

Remote Display Panel (Optional).......................................................................................................3-4

Communication Ports......................................................................................................................... 3-4

Output Contacts ................................................................................................................................. 3-8

BREAKER MANAGEMENT................................................................................................................... 3-8

Introduction......................................................................................................................................... 3-8

Determining Breaker Status...............................................................................................................3-9

Processing Breaker Requests............................................................................................................3-9

Breaker Operation.............................................................................................................................. 3-9

Figures

Figure 3-1. Function Block Diagram..........................................................................................................3-1

Tables

Table 3-1. ECU Parameters Obtained from CAN Interface ...................................................................... 3-5

Table 3-2. Engine Configuration Parameters Obtained from CAN Interface............................................ 3-6

Table 3-3. Diagnostic Information Obtained Over the CAN Interface....................................................... 3-7

9400200990 Rev B DGC-2020 Functional Description i

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ii DGC-2020 Functional Description 9400200990 Rev B

SECTION 3 • FUNCTIONAL DESCRIPTION

INTRODUCTION

This section describes how the DGC-2020 functions. A detailed description of each function block is provided in the paragraphs under the heading of DGC-2020 Function Blocks.

DGC-2020 operating and metering features are described in Section 4, BESTCOMSPlus Software.

DGC-2020 FUNCTION BLOCKS

To ease understanding, DGC-2020 functions are illustrated in the block diagram of Figure 3-1. The following paragraphs describe each function in detail.

Power Supply

(To Internal Circuitry)

Sensing

Battery Voltage Sensing

Sender Input Sensing

Generator Current Sensing

Bus Voltage Sensing

Front Panel HMI

and LCD

Remote Display

Panel Driver

(RDP-110)

HMI

Com Ports

Sensing

Generator Voltage Sensing

MPU Speed Sensing

Programmable Dry Contact Inputs (16)

USB Com Port

J1939 CAN Com Port

RS-485 Com Port (Optional)

Modem Com Port (Optional)

Emergency Stop Contact Input

Microprocessor

P0040-04

06-20-06

Programmable

Output Contacts

(4 or 12)

Fuel Solenoid

Output Contacts

Engine Crank

Output Contacts

Pre-start Output

Contacts

Output Contacts

Figure 3-1. Function Block Diagram

Power Supply

The internal, switch-mode power supply uses the applied battery voltage to generate operating power for the internal circuitry of the DGC-2020. The power supply accepts a nominal battery voltage of 12 or 24 Vdc and has an operating range of 6 to 32 Vdc. Battery voltage is applied to terminals 2 (–) and 3 (+). Operating power must be of the correct polarity. Although reverse polarity will not cause damage, the DGC-2020 will not operate.

Battery Voltage Sensing

Voltage applied to the power supply is filtered and reduced to a suitable level for sensing by the microprocessor.

Microprocessor

The microprocessor controls the overall functionality of the DGC-2020 and makes decisions based on programming and system inputs.

Circuits relating to the microprocessor inputs are described in the following paragraphs.

9400200990 Rev B DGC-2020 Functional Description 3-1

Zero Crossing Detection

The zero crossing of A-phase to B-phase or A-phase to C-phase (user-selectable) line voltage is detected and used to calculate the generator frequency. The zero crossing of A-phase to B-phase bus voltage is used to calculate the bus frequency.

Analog-to-Digital Converter

Scaled and conditioned signals representing the sensing voltage, sensing current, coolant temperature, fuel level, oil pressure, and battery voltage are digitized by the microprocessor’s analog-to-digital converter. The digitized information is stored in random access memory (RAM) and used by the microprocessor for all metering and protection functions.

Generator Voltage Sensing Inputs

Voltages applied to the generator voltage sensing inputs are scaled to levels suitable for use by the internal circuitry. Generator voltage sensing configuration is menu-selectable.

The generator voltage sensing inputs accept a maximum voltage of 576 Vrms, line-to-line. Sensing voltage is applied to terminals 41 (A-phase), 39 (B-phase), 37 (C-phase), and 35 (neutral).

Bus Voltage Sensing Inputs

Voltage applied to the bus voltage sensing input is scaled to a level suitable for use by the internal circuitry.

The bus voltage sensing input accepts a maximum voltage of 576 Vrms. Sensing voltage is applied to terminals 45 (A-phase) and 43 (B-phase).

Current Sensing Inputs

Generator currents are sensed and scaled to values suitable for use by the inte rnal circuitry. DGC-2020 controllers with 1 ampere current sensing (style number 1xxxxxxxx) accept a maximum

current value of 1 Aac. DGC-2020 controllers with 5 ampere current sensing (style number 5xxxx xxxx) accept a maximum current value of 5 Aac. Sensing current is applied to terminals 68 (IA–) and 69 (IA+), 71 (IB–) and 72 (IB+), and 74 (IC–) and 75 (IC+).

Analog Engine Sender Inputs

Programmable analog engine sender inputs give the DGC-2020 user the flexibility to select the engine sender to be used in an application. Information about programming the sender inputs is provided in Section 4, BESTCOMSPlus Software.

Oil Pressure

A current is provided to the oil pressure sender. The developed voltage is measured and scaled for use by the internal circuitry. An open circuit or short circuit across the oil pressure sender terminals will cause the DGC-2020 to indicate a failed sender. Oil pressure senders that are compatible with the DGC-2020 include Datcon model 02505-00, Isspro model R8919, and Stewart-Warner models 411K and 411M. Other senders may also be used. BESTCOMSPlus software allows for the programming of sender characteristics. See Section 4, BESTCOMSPlus Software, for more information.

Oil pressure sender connections are made at terminals 8 and 11 (sender co mmon).

Coolant Temperature

A current is provided to the coolant temperature sender. The developed voltage is measured and scaled for use by the internal circuitry. An open circuit or short circuit across the coolant temperature sender terminals will cause the DGC-2020 to indicate a failed sender. Coolant temperature senders that are compatible with the DGC-2020 include Datcon model 02019-00, Faria model TS4042, Isspro model R8959, and Stewart-Warner model 334P. Other senders may be used. BESTCOMSPlus software allows for the programming of sender characteristics. See Section 4, BESTCOMSPlus Software, for more information.

Coolant temperature sender connections are made at terminals 10 and 11 (sender common).

Fuel Level

A current is provided to the fuel level sender. The developed voltage is measured and scaled for use by the internal circuitry. An open circuit or short circuit across the fuel level sender terminals will cause the DGC-2020 to indicate a failed sender. Fuel level senders that are compatible with the DGC-2020 include

3-2 DGC-2020 Functional Description 9400200990 Rev B

Isspro model R8925. Other senders may be used. BESTCOMSPlus software allows for the programming of sender characteristics. See Section 4, BESTCOMSPlus Software, for more information.

Fuel level sender connections are made at terminals 9 and 11 (sender common).

Speed Signal Inputs

The DGC-2020 uses signals from the generator voltage sensing inputs and magnetic pickup input to detect machine speed.

Generator Voltage Sensing Input

The generator voltage sensed by the DGC-2020 is used to measure frequency and can be used to measure machine speed.

Sensing voltage is applied to terminals 41 (A-phase), 39 (B-phase), 37 (C-phase), and 35 (Neutral).

Magnetic Pickup Input (MPU)

Voltage supplied by a magnetic pickup is scaled and conditioned for use by the internal circuitry as a speed signal source. The MPU input accepts a signal over the range of 3 to 35 volts peak and 32 to 10,000 hertz.

Magnetic pickup connections are provided at terminals 31 (+) and 32 (–).

Contact Inputs

The DGC-2020 has seventeen contact sensing inputs: an emergency stop input and 16 programmable inputs. Additional contact inputs can be accommodated with separate I/O modules. Contact Basler Electric for availability and ordering information.

Emergency Stop Input

This input accepts Form B, dry contacts. An open circuit at this continuously monitored input initiates an emergency stop. An emergency stop removes operating power from the DGC-2020 Pre-Start, Run, and Fuel output relays.

Emergency stop contact connections are made at terminals 46 and 47.

Programmable Inputs

Each programmable input (Input 1 through Input 16) can be independently configured to perform the following functions. By default, each programmable input is disabled.

• Automatic Transfer Switch

• Battery Charger Fail

• Battle Override

• Fuel Leak Detection

• Grounded Delta Override

• Low Coolant Level

• Low-Line Override

• Single-Phase A-C Override

• Single-Phase Override

The programmable inputs accept normally open, Form A contacts. A contact is connected between a programmable input and the negative side of the battery. Through BESTCOMSPlus, each programmable contact input can be assigned a name (16 alphanumeric characters, maximum) and configured as an alarm input, a pre-alarm input, or neither. The default names for the inputs are INPUT_x (where x = 1 to

16). When a programmable contact input is closed, the front panel display shows the name of the closed input if it was programmed as an alarm or pre-alarm input. Alarm inputs are annunciated through the Normal display mode screens of the front panel. Pre-alarm inputs are annunciated through the pre-alarm metering screen of the front panel. If neither is programmed, no indication is given. Programming an input as neither is useful when a programmable input is used as an input to programmable logic.

Connections for the programmable inputs are provided at terminals 15 (Input 16) through 30 (Input 1). The negative side of the battery voltage (terminal 2) serves as the return connection for the programmable inputs.

9400200990 Rev B DGC-2020 Functional Description 3-3

Front Panel HMI

The front panel HMI provides a convenient interface for viewing system parameters and for controlling the DGC-2020/generator set. Front panel HMI components include an LCD (liquid crystal display), LED (light emitting diodes) indicators, and pushbuttons.

LCD

The backlit LCD provides metering, pre-alarm, and alarm information. Detailed information about the LCD is provided in the Software Operation sub-section.

LED Indicators

The LEDs indicate pre-alarm and alarm conditions along with DGC-2020 status and generator status.

Pushbuttons

The pushbuttons are used to scroll through and select parameters displayed on the LCD, change setpoints, start and stop the generator, and reset alarms.

Remote Display Panel (Optional)

Applications that require remote annunciation can use Basler Electric’s Remote Display Panel, RDP-110. Using the RDP-110 with the DGC-2020 meets the requirements of NFPA Standard 110. The RDP-110 uses a dedicated, four-terminal interface with the DGC-2020. The RDP-110 communicates with the DGC2020 via terminals 6 (RDP TXD–) and 7 (RDP TXD+) and receives power from terminals 4 (RDP BATT+) and 5 (RDP BATT-). Remote indication of many pre-alarm and alarm conditions is provided by the RDP-

110. The following pre-alarm conditions are indicated by LEDs on the RDP-110 front panel:

• Battery charger failure ∗

• Battery overvoltage

• High coolant temperature

• Low coolant temperature

• Low fuel level

• Low oil pressure

• Weak battery

The following alarm conditions are indicated by LEDs and an audible alarm on the RDP-110 front panel:

• Low coolant level ∗

• High coolant temperature

• Low oil pressure

• Overcrank

• Overspeed

• Emergency stop

• Fuel leak/fuel sender failure ∗

• Engine sender unit failure ∗ Can be configured in the DGC-2020 as None, Alarm, or Pre-Alarm. See Section 4, BESTCOMSPlus,

Programmable Inputs, Programmable Functions, for more information. The light on the RDP-110 will turn on when the input that is assigned to the programmable function is closed, whether the function is configured as None, Alarm, or Pre-Alarm.

Additionally, the RDP-110 indicates when the DGC-2020 is not operating in Auto mode and when the generator is supplying load. For more information about the RDP-110, request product bulletin SNE.

RDP-110 communication connections are made at DGC-2020 terminals 6 (RDP TXD–) and 7 (RDP TXD+). RDP-110 operating power is supplied at DGC-2020 terminals 4 (RDP BATT+) and 5 (RDP BATT–).

Communication Ports

DGC-2020 communication ports include a USB jack, CAN terminals, optional RS-485 terminals, and an optional modem jack.

USB

The rear-panel, mini-B USB socket enables local communication with a PC running BESTCOMSPlus software. The DGC-2020 is connected to a PC using a standard USB cable. BESTCOMSPlus is a

3-4 DGC-2020 Functional Description 9400200990 Rev B

Windows® based communication software package that is supplied with the DGC-2020. A detailed description of BESTCOMSPlus is provided in Section 4, BESTCOMSPlus Software.

CANBus

A Control Area Network (CAN) is a standard interface that enables communication between multiple controllers on a common network using a standard message protocol. DGC-2020 controllers have a CAN interface that supports the SAE J1939 protocol and the MTU/MDEC protocol.

Applications using an engine-driven generator set controlled by a DGC-2020 may also have an Engine Control Unit (ECU). The CAN interface allows the ECU and DGC-2020 to communicate. The ECU reports operating information to the DGC-2020 through the CAN interface. Operating parameters and diagnostic information, if supported by the ECU, are decoded and displayed for monitoring.

The primary use of the CAN interface is to obtain engine operating parameters for monitoring speed, coolant temperature, oil pressure, coolant level, and engine hours without the need for direct connection to individual senders. Table 3-1 lists the ECU parameters and Table 3-2 lists the engine configuration parameters supported by the DGC-2020 CAN interface. These parameters are transmitted via the CAN interface at preset intervals. See the column labeled Update Rate in Table 3-1 for transmission rates. This information can also be transmitted upon user request.

CAN interface connections are made at 48 (CAN L), 49 (CAN H), and 50 (SHIELD).

Table 3-1. ECU Parameters Obtained from CAN Interface

ECU Parameter

Actual engine percent torque % % engine speed

Air filter differential pressure kPa psi 500 ms 100th 107 Air inlet temperature kPa Ambient air temperature Barometric pressure kPa psi 1 s 10th 108 Battery voltage Vdc Vdc 1 s 10th 168 Boost pressure kPa psi 500 ms none 102 Coolant level % % 500 ms 10th 111 Coolant pressure kPa psi 500 ms 10th 109 Engine coolant temperature Engine intercooler temperature Engine oil level % % 500 ms 10th 98 Engine oil pressure kPa psi 500 ms 10th 100 Engine oil temperature Engine speed rpm rpm engine speed

Exhaust gas temperature Fuel delivery pressure kPa psi 500 ms 10th 94 Fuel rate liter/hr gal/hr 100 ms 100th 183 Fuel temperature Injection control pressure MPa psi 500 ms none 164 Injector metering rail pressure MPa psi 500 ms none 157 Intake manifold temperature Percent load at current rpm % % 50 ms none 92 Switched battery voltage (at

ECU) Throttle (accelerator pedal)

position Total engine hours hours hours requested 1.5 s 100th 247 Total fuel used liters gallons requested 1.5 s none 250 Trip fuel liters gallons requested 1.5 s none 182

Metric

Units

°C °F

°C °F °C °F

°C °F

Vdc Vdc 1 s 10th 158

% % 50 ms 10th 91

English

Units

°F

Update Rate

dependent

1 s none 172 1 s 10th 171

1 s none 110 1 s none 52

1 s 10th 175

dependent

500 ms 10th 173

1 s none 174

500 ms none 105

Decimal

Place

none 513

none 190

∗

SPN

∗ SPN is suspect parameter number.

9400200990 Rev B DGC-2020 Functional Description 3-5

Table 3-2. Engine Configuration Parameters Obtained from CAN Interface

ECU Parameter

Engine speed at high idle point 6 rpm rpm 5 s none 532 Engine speed at idle point 1 rpm rpm 5 s none 188 Engine speed at point 2 rpm rpm 5 s none 528 Engine speed at point 3 rpm rpm 5 s none 529 Engine speed at point 4 rpm rpm 5 s none 530 Engine speed at point 5 rpm rpm 5 s none 531 Gain (Kp) of endspeed governor %/rpm %/rpm 5 s 100th 545 Maximum momentary engine override

speed point 7 Maximum momentary engine override time

limit Percent torque at idle point 1 % % 5 s none 539 Percent torque at point 2 % % 5 s none 540 Percent torque at point 3 % % 5 s none 541 Percent torque at point 4 % % 5 s none 542 Percent torque at point 5 % % 5 s none 543 Reference engine torque Requested speed control range lower limit rpm rpm 5 s none 535 Requested speed control range upper limit rpm rpm 5 s none 536 Requested torque control range lower limit % % 5 s none 537 Requested torque control range upper limit % % 5 s none 538

Metric

Units

rpm rpm 5 s none 533

seconds seconds 5 s 10th 534

N•m

English

Units

ft-lb 5 s none 544

Update

Rate

Decimal

Place

∗

SPN

∗ SPN is suspect parameter number.

CAUTION

When the CAN interface is enabled, the DGC-2020 will ignore the following sender inputs: oil pressure, coolant temperature, and magnetic pickup.

Diagnostic Trouble Codes (DTCs)

The DGC-2020 obtains diagnostic engine information from a compatible engine control unit (ECU). The DGC-2020 will receive an unsolicited message of a currently active diagnostic trouble code (DTC). Previously active DTCs are available upon request. Active and previously active DTCs can be cleared on request. Table 3-3 lists the diagnostic information that the DGC-2020 obtains over the CAN interface.

DTCs are reported in coded diagnostic information that includes the Suspect Parameter Number (SPN), Failure Mode Identifier (FMI), and Occurrence Count (OC). All parameters have an SPN and are used to display or identify the items for which diagnostics are being reported. The FMI defines the type of failure detected in the subsystem identified by an SPN. The reported problem may not be an electrical failure but a subsystem condition needing to be reported to an operator or technician. The OC contains the number of times that a fault has gone from active to previously active.

3-6 DGC-2020 Functional Description 9400200990 Rev B

Table 3-3. Diagnostic Information Obtained Over the CAN Interface

Transmission

Parameter

Repetition Rate

Active diagnostic trouble code 1 s Lamp status 1 s Previously active diagnostic trouble code On request Request to clear active DTCs On request Request to clear previously active DTCs On request

MTU MDEC ECU Fault Codes

A DGC-2020 connected to a genset equipped with an MTU MDEC engine controller tracks and displays the active fault codes issued by the MDEC ECU. Active MDEC ECU fault codes can be viewed through BESTCOMSPlus by using the Metering Explorer to expand the MTU MDEC tree or through the front panel display by navigating to METERING, ALARMS-STATUS, MDEC FAULT CODES.

Each fault code is displayed with a fault description and the fault number. If the DGC-2020 does not have descriptive information about a fault number that was received, the fault description will display as “NO TEXT AVAILABLE”. For more detailed information, refer to your MDEC ECU documentation.

3, L1 T-FUEL 5, L1 T-CHRG AIR 9, L1 T-INTERCOOLER 15, L1 P-LUBE OIL 16, L2 P-LUBE OIL 19, L1 T-EXHAUST A 21, L1 T-EXHAUST B 23, L1 COOLANT LEVEL 24, L2 COOLANT LEVEL 30, ENGINE OVERSPEED 31, CHRGR1 OVERSPD 1 32, CHRGR1 OVERSPD 2 33, L1 P-FUELFLT DIF 44, L1 LEVEL INTRCLR 45, L2 LEVEL INTRCLR 51, L1 T-LUBE OIL 57, L1 P-COOLANT 58, L2 P-COOLANT 63, L1 P-CRANKCASE 65, L1 P-FUEL 67, L1 T-COOLANT 68, L2 T-COOLANT 69, L1 T-EXTERN 1 70, L2 T-EXTERN 1 71, L1 T-EXTERN 2 72, L2 T-EXTERN 2 73, L1 P-EXTERN 1 74, L2 P-EXTERN 1 75, L1 P-EXTERN 2 76, L2 P-EXTERN 2 77, LIN EXT CLNT LEV 78, LIN INTERCLR LEV 79, L BIN-EXTERN 3 80, L BIN-EXTERN 4 90, IDLE SPEED LOW 91, RUNUP SPEED LOW 92, START SPEED LOW 93, PREHT TMP. LIM 2 94, PREHT TMP. LIM 1 100, EDM NOT VALID 101, IDM NOT VALID

102, INVLD FUEL CNS 1 103, INVLD FUEL CNS 2 104, OP HRS1 INVALID 105, OP HRS2 INVALID 106, ERR REC1 INVALID 107, ERR REC2 INVALID 118, L1 SPPLY VOLT LO 119, L2 SPPLY VOLT LO 120, L1 SPPLY VOLT HI 121, L2 SPPLY VOLT HI 122, L1 T-ELECTRONIC 134, 15V POSECU DEFCT 136, 15V NEGECU DEFCT 137, L1 5V BUFFR TEST 138, SENSOR PWR DEFCT 139, L1 TE BUFFR TEST 140, TE BUF ECU DEFCT 142, BANK1ECU DEFECT 144, BANK2ECU DEFECT 145, 15V GOODECU DFCT 147, AD-TST1ECU DEFCT 149, AD-TST2ECU DEFCT 151, AD-TST3ECU DEFCT 170, MI MODULE FAIL 171, MI NOT ACTIVE 172, TBO EXPIRED 173, MODL WRITE LIMIT 180, CAN1 NODE LOST 181, CAN2 NODE LOST 183, CAN NO PU-DATA 184, CAN PUDATA EE-FL 185, CAN LESS MAILBXS 186, CAN1 BUS OFF 187, CAN1 ERROR PASSV 188, CAN2 BUS OFF 189, CAN2 ERROR PASSV 201, SD T-COOLANT 202, SD T-FUEL 203, SD T-CHARGE AIR 205, SD T-CLNT INTERC 208, SD P-CHARGE AIR

211, SD P-LUBE OIL 214, SD P-CRANKCASE 215, SD P-RAIL FUEL 216, SD T-LUBE OIL 220, SD COOLANT LEVEL 222, SD LVL LKG FUEL 223, SD LVL INTERCLR 230, SD CRANKSHFT SPD 231, SD CAMSHAFT SPD 245, SD POWER SUPPLY 246, SD T-ELECTRONIC 249, SD CAN STOP 250, SD CAN SPD DEMND 251, SD CAN UP/DOWN 252, SD CAN NOTCH POS 253, SD CAN OVERRIDE 254, SD CAN TST OVRSP 260, SD 15V POS SPPLY 261, SD 15V NEG SPPLY 262, SD 5V BUFFR TEST 263, SD TE BUFFR TEST 264, SD BANK 1 TEST 265, SD BANK 2 TEST 266, SD SPD DEMAND AN 267, SD SPDMTEST BNCH 269, SD LOAD PLS ANLG 271, SD T-EXTERN 1 272, SD T-EXTERN 2 273, SD P-EXTERN 1 274, SD P-EXTERN 2 275, MD EXT.CLNT LVL 276, MD INTERCLER LVL 277, MISDATA BIN-EXT3 278, MISDATA BIN-EXT4 279, SD CANRES TRIPFL 280, SD CAN ALRM RST 281, SD ADTEST1 SPPLY 282, SD ADTEST2 SPPLY 283, SD ADTEST3 SPPLY 284, SD CAN LAMP TEST

9400200990 Rev B DGC-2020 Functional Description 3-7

RS-485 (Optional)

DGC-2020 controllers with the optional RS-485 communication port (style number xxxRxxxxx) can be monitored and controlled via a polled network using the Modbus

protocol. The RS-485 port supports a user-selectable baud rate of 1200, 2400, 4800, or 9600. Odd, even, or no parity is supported. Fixed communication settings include the number of data bits (8) and stop bits (1). Modbus register values for the DGC-2020 are listed and defined in Appendix B, Modbus Communication. RS-485 port connections are made at DGC-2020 terminals 14 (485A), 13 (485B), and 12 (485 SHIELD).

Modem (Optional)

When equipped with the optional, internal, dial-out modem (style number xxxxxMxxx for US version or xxxxxIxxx for international version), the DGC-2020 can be connected to a standard telephone line through its RJ-11 jack. The modem enables the DGC-2020 to dial up to four pager telephone numbers and annunciate conditions selected by the user. These conditions include any DGC-2020 alarm or pre-alarm, closure of any programmable contact input, and an active cooldown timer. The modem accommodates pagers that use seven data bits with even parity or modems using eight data bits with no parity.

Output Contacts

Output contact operation is controlled by the operating mode of the DGC-2020. The state of the Emergency Stop contact input also affects output contact operation. When the Emergency Stop contact input is open (emergency stop condition), the Pre-Start, Crank, and Fuel outputs open. When the Emergency Stop input is closed, all output contacts operate normally.

DGC-2020 output contacts include Pre-Start, Crank, Fuel, and up to 12 programmable outputs. Additional output contacts can be accommodated with separate I/O modules. Contact Basler Electric for availability and ordering information.

Pre-Start

This output closes to energize the engine glow plugs. The Pre-Start output can be programmed to close up to 30 seconds prior to engine cranking. The Pre-Start output can also be programmed to open upon engine startup or remain closed as long as the engine is operating.

Pre-Start output connections are made through terminals located on the Pre-Start relay.

Crank

This output closes when engine cranking is initiated by the DGC-2020 and opens when the magnetic pickup (MPU) or generator frequency indicates that the engine has started. Prior to engine starting, the duration of cranking is determined by the cranking style (cycle or continuous) selected. Cycle cranking permits up to 7 crank cycles with crank cycle duration of 5 to 15 seconds. The continuous crank time is adjustable from 1 to 60 seconds.

Crank output connections are made through terminals located on the Crank rela y.

Fuel

This output closes when engine cranking is initiated by the DGC-2020. The Fuel output remains closed until an off command or emergency stop command is received.

Fuel output connections are made through terminals located on the Fuel relay.

Programmable

DGC-2020 controllers with a style number of xxAxxxxxx have four programmable output contacts (OUT 1 through 4). Twelve programmable outputs (OUT 1 through 12) are provided on controllers with a style number of xxBxxxxxx.

BREAKER MANAGEMENT

Introduction

The DGC-2020 is capable of controlling the generator breaker and the mains breaker. Once it is determined that a valid breaker request is available, the DGC-2020 will attempt to operate the breaker if possible. The user can choose to control only the generator breaker, the generator and mains breakers, or none. BESTCOMSPlus is used to configure breaker management. Refer to Section 4, BESTCOMSPlus Software, Breaker Management, for setting information.

3-8 DGC-2020 Functional Description 9400200990 Rev B

Determining Breaker Status

The status of the breakers is determined by using BESTlogic+ Programmable Logic to setup the GENBRK and MAINSBRK logic blocks. These logic blocks have outputs that can be configured to energize an output contact and control a breaker as well as inputs for breaker control and status.

Processing Breaker Requests

Types of breaker operate requests include:

• Local Request - generated by internal functions and based on operating modes.

• Com Request - generated through a communication port using BESTCOMSPlus or the front panel

HMI.

• Logic Request - generated from the PLC (programmable logic controller).

The type of response given for a local request depends on the operating mode of the DGC-2020. When in RUN mode, the generator and mains breakers can be closed manually. If operating in the OFF mode, the generator breaker cannot be closed because the generator will not be stable. The generator and mains breakers cannot be controlled manually when operating in AUTO mode. When in AUTO mode, the mains fail feature will automatically control the breakers or the external ATS (automatic transfer switch) will start the generator and control the breakers itself.

If the DGC-2020 is operating in Auto-Run mode, only local requests are considered.

Breaker Operation

The DGC-2020 will attempt to close a breaker only after verifying that it can be closed. If the breaker cannot be closed, the close request will be ignored. Only one breaker can be closed at a time. Synchronization is required before closing the breaker to a live bus. Closure to a dead bus can be performed after meeting dead bus threshold and timing requirements set by the user.

Determining if it is Acceptable to Close a Breaker

Before the generator breaker can be closed, it must be configured in BESTCOMSPlus. If only the generator breaker is configured (mains breaker not configured) the DGC-2020 looks at user settings to determine if the generator side of the breaker is stable and the bus side is stable or dead. If both the generator and the mains breakers are configured and open, the DGC-2020 will close the generator breaker if the generator side of the breaker is stable. If both breakers are configured and the mains breaker is closed, the DGC-2020 will close the generator breaker after verifying that both sides of the generator breaker are stable and the DGC-2020 is synchronizing.

Before the mains breaker can be closed, is must be configured in BESTCOMSPlus. If both the mains and the generator breakers are configured and open, the DGC-2020 will close the mains breaker if the mains side of the breaker is stable. If both breakers are configured and the generator breaker is closed, the DGC-2020 will close the mains breaker after verifying that both sides of the mains breaker are stable.

Changing the Breaker State

Synchronization is required when closing a breaker to a live bus. Bus conditions act as a supervisory control over the synchronizing function. If synchronization is in process and either bus goes unstable, synchronization is suspended. To close the breaker on a dead bus, the DGC-2020 generates a breaker close request. The closing function is then run without synchroniza tion.

The GENBRK and MAINSBRK logic blocks contain both Open and Close logic outputs that can be configured to energize an output contact, which would in turn operate the breaker. The Synchronizer screen in BESTCOMSPlus is used to set the output contact type to pulses or continuous.

9400200990 Rev B DGC-2020 Functional Description 3-9

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3-10 DGC-2020 Functional Description 9400200990 Rev B

SECTION 4 • BESTCOMSPlus SOFTWARE

TABLE OF CONTENTS

SECTION 4 • BESTCOMSPlus SOFTWARE...........................................................................................4-1

INTRODUCTION....................................................................................................................................4-1

INSTALLATION......................................................................................................................................4-1

Installing BESTCOMSPlus................................................................................................................. 4-2

STARTUP AND ACTIVATION...............................................................................................................4-2

Starting BESTCOMSPlus...................................................................................................................4-2

Activating the DGC-2020 Plug-In....................................................................................................... 4-3

COMMUNICATION................................................................................................................................4-4

Connecting the DGC-2020 and PC....................................................................................................4-4

Configuring Communication............................................................................................................... 4-4

Installing the USB Driver if Automatic Installation Fails ..................................................................... 4-5

Establishing Communication.............................................................................................................. 4-5

MENU BARS.......................................................................................................................................... 4-5

Upper Menu Bar (BESTCOMSPlus Shell).........................................................................................4-5

Lower Menu Bar (DGC-2020 Plug-In)................................................................................................4-6

SETTINGS EXPLORER ........................................................................................................................4-7

DGC-2020 AND SYSTEM PARAMETERS ...........................................................................................4-7

GENERAL SETTINGS...........................................................................................................................4-7

Front Panel HMI................................................................................................................................. 4-7

Style Number...................................................................................................................................... 4-8

Device Information .............................................................................................................................4-8

Device Security Setup........................................................................................................................ 4-9

COMMUNICATIONS ...........................................................................................................................4-10

CANBus............................................................................................................................................4-10

Modem Setup (Optional)..................................................................................................................4-12

RS-485 (Optional) ............................................................................................................................4-13

SYSTEM PARAMETERS ....................................................................................................................4-14

System Settings ............................................................................................................................... 4-14

Crank Settings..................................................................................................................................4-15

Sensing Transformers...................................................................................................................... 4-16

PROGRAMMABLE INPUTS................................................................................................................ 4-17

Configurable Inputs.......................................................................................................................... 4-17

Programmable Functions.................................................................................................................4-18

PROGRAMMABLE OUTPUTS............................................................................................................4-19

Configurable Outputs .......................................................................................................................4-19

ALARM CONFIGURATION .................................................................................................................4-20

Pre-Alarms........................................................................................................................................4-20

Alarms ..............................................................................................................................................4-22

Sender Fail.......................................................................................................................................4-23

GENERATOR PROTECTION..............................................................................................................4-24

Voltage Protection............................................................................................................................ 4-24

Frequency Protection.......................................................................................................................4-26

Overcurrent Protection.....................................................................................................................4-27

BREAKER MANAGEMENT................................................................................................................. 4-28

Breaker Hardware............................................................................................................................4-28

Bus Condition Detection...................................................................................................................4-29

Automatic Synchronizer (Optional) ..................................................................................................4-30

PROGRAMMABLE SENDERS............................................................................................................ 4-32

BESTlogic+ PROGRAMMABLE LOGIC .......................................................................................... 4-32

Logic Timers.....................................................................................................................................4-33

FILE MANAGEMENT...........................................................................................................................4-33

Settings Files....................................................................................................................................4-33

Uploading Firmware Files.................................................................................................................4-34

Uploading Language Modules..........................................................................................................4-35

METERING EXPLORER .....................................................................................................................4-36

9400200990 Rev B DGC-2020 BESTCOMSPlus Software i

Engine ..............................................................................................................................................4-38

Generator .........................................................................................................................................4-38

Power ...............................................................................................................................................4-38

Run Statistics....................................................................................................................................4-39

Status ...............................................................................................................................................4-39

Inputs................................................................................................................................................4-40

Outputs.............................................................................................................................................4-40

Alarms ..............................................................................................................................................4-41

Event Log .........................................................................................................................................4-41

J1939 ECU.......................................................................................................................................4-42

MTU MDEC......................................................................................................................................4-43

Summary..........................................................................................................................................4-44

Control..............................................................................................................................................4-45

Real Time Clock...............................................................................................................................4-45

UPDATING BESTCOMSPlus SOFTWARE.........................................................................................4-46

Figures

Figure 4-1. Typical User Interface Components........................................................................................4-1

Figure 4-2. BESTCOMSPlus Select Language Screen ............................................................................ 4-2

Figure 4-3. BESTCOMSPlus Splash Screen ............................................................................................4-3

Figure 4-4. BESTCOMSPlus Select New Device Screen.........................................................................4-3

Figure 4-5. Device Needs Activated Screen ............................................................................................. 4-4

Figure 4-6. DGC-2020 Connection Screen ............................................................................................... 4-4

Figure 4-7. Processing, Please Wait… Screen.........................................................................................4-5

Figure 4-8. BESTCOMSPlus Front Panel HMI Settings............................................................................4-8

Figure 4-9. BESTCOMSPlus DGC-2020 Style Chart Selections and Definitions.....................................4-8

Figure 4-10. BESTCOMSPlus Device Information Values and Settings...................................................4-9

Figure 4-11. BESTCOMSPlus Device Security Setup ............................................................................4-10

Figure 4-12. BESTCOMSPlus CANBus Setup........................................................................................4-11

Figure 4-13. BESTCOMSPlus Modem Setup .........................................................................................4-13

Figure 4-14. BESTCOMSPlus RS-485 Port Settings..............................................................................4-13

Figure 4-15. BESTCOMSPlus System Settings......................................................................................4-15

Figure 4-16. BESTCOMSPlus Engine Cranking Settings.......................................................................4-16

Figure 4-17. BESTCOMSPlus Sensing Transformers Parameters......................................................... 4-17

Figure 4-18. BESTCOMSPlus Configurable Inputs Settings...................................................................4-18

Figure 4-19. BESTCOMSPlus Settings for Programmable Functions.................................................... 4-19

Figure 4-20. BESTCOMSPlus Configurable Outputs Settings................................................................ 4-20

Figure 4-21. BESTCOMSPlus Pre-Alarms Settings................................................................................4-22

Figure 4-22. BESTCOMSPlus Alarms Settings.......................................................................................4-23

Figure 4-23. BESTCOMSPlus Sender Fail Settings ...............................................................................4-24

Figure 4-24. BESTCOMSPlus Voltage Protection Settings .................................................................... 4-26

Figure 4-25. BESTCOMSPlus Frequency Protection Settings ...............................................................4-27

Figure 4-26. BESTCOMSPlus Overcurrent Protection Settings .............................................................4-28

Figure 4-27. BESTCOMSPlus Breaker Hardware Settings.....................................................................4-29

Figure 4-28. BESTCOMSPlus Bus Condition Detection Settings........................................................... 4-30

Figure 4-29. BESTCOMSPlus Synchronizer Settings.............................................................................4-31

Figure 4-30. BESTCOMSPlus Programmable Senders Settings............................................................ 4-32

Figure 4-31. Settings Compare Setup.....................................................................................................4-34

Figure 4-32. Settings Compare View.......................................................................................................4-34

Figure 4-33. DGC-2020 Selection Screen............................................................................................... 4-35

Figure 4-34. Upload Firmware Screen .................................................................................................... 4-35

Figure 4-35. Language Module Upload Manager Screen....................................................................... 4-36

Figure 4-36. Docking Options..................................................................................................................4-37

Figure 4-37. Metering, Engine.................................................................................................................4-38

Figure 4-38. Metering, Generator............................................................................................................ 4-38

Figure 4-39. Metering, Power..................................................................................................................4-38

Figure 4-40. Metering, Run Statistics......................................................................................................4-39

Figure 4-41. Metering, Status.................................................................................................................. 4-39

Figure 4-42. Metering, Inputs ..................................................................................................................4-40

Figure 4-43. Metering, Outputs................................................................................................................4-40

Figure 4-44. Metering, Alarms................................................................................................................. 4-41

ii DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-45. Metering, Event Log............................................................................................................4-41

Figure 4-46. Metering, ECU Data............................................................................................................4-42

Figure 4-47. Metering, Engine Configuration ..........................................................................................4-42

Figure 4-48. Metering, Download DTC.................................................................................................... 4-43

Figure 4-49. Metering, MDEC Alarms ..................................................................................................... 4-43

Figure 4-50. Metering, MDEC Fault Codes............................................................................................. 4-43

Figure 4-51. Metering, Summary............................................................................................................. 4-44

Figure 4-52. Metering, Control.................................................................................................................4-45

Figure 4-53. Metering, Real Time Clock.................................................................................................. 4-45

Tables

Table 4-1. System Requirements for BESTCOMSPlus and the .NET Framework...................................4-2

Table 4-2. Explanation of Call-Outs on Figure 4-36................................................................................ 4-37

9400200990 Rev B DGC-2020 BESTCOMSPlus Software iii

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iv DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

SECTION 4 • BESTCOMSPlus SOFTWARE

INTRODUCTION

BESTCOMSPlus is a Windows®-based, PC application that provides a user-friendly, graphical user interface (GUI) for use with Basler Electric communicating products. The name BESTCOMSPlus is an acronym that stands for B

ettings.

S BESTCOMSPlus provides the user with a point-and-click means to set and monitor the DGC-2020. The

capabilities of BESTCOMSPlus make the configuration of one or several DGC-2020 controllers fast and efficient. A primary advantage of BESTCOMSPlus is that a settings scheme can be created, saved as a file, and then uploaded to the DGC-2020 at the user’s convenience.

BESTCOMSPlus uses plug-ins allowing the user to manage several different Basler Electric products. The DGC-2020 is a plug-in for BESTCOMSPlus and must be activated before use.

The DGC-2020 plug-in opens inside the BESTCOMSPlus main shell with the same default logic scheme that is shipped with the DGC-2020. This gives the user the option of developing a custom setting file by modifying the default logic scheme or by building a unique scheme from scratch.

BESTlogic+ Programmable Logic is used to program DGC-2020 inputs and outputs, alarms, and generator protection functions. This is accomplished by the drag-and-drop method. The user can drag elements, components, inputs, and outputs onto the program grid and make connections between them to create the desired logic scheme.

Figure 4-1 illustrates the typical user interface components of the DGC-2020 plug-in with BESTCOMSPlus.

asler Electric Software Tool for Communications, Operations, Maintenance, and

Upper Menu Bar

Lower Menu Bar

Metering Explorer

Settings Explorer

Setting Information

Status Bar

Figure 4-1. Typical User Interface Components

10-11-06

P0038-25

INSTALLATION

BESTCOMSPlus software is built on the Microsoft® .NET Framework. The setup utility that installs BESTCOMSPlus on your PC also installs the DGC-2020 plug-in and the .NET Framework. BESTCOMSPlus operates with IBM-compatible personal computers (PCs) using Windows Professional with SP4, Windows XP Home with SP2, Windows

2000 Server with SP4, Windows® XP Professional with SP2, Windows®

XP Media Center with SP2, and Windows™ Server 2003. Microsoft®

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-1

2000

Internet Explorer 5.01 or later must be installed on your PC before installing BESTCOMSPlus. System requirements for the .NET Framework and BESTCOMSPlus are listed in

Table 4-1. System Requirements for BESTCOMSPlus and the .NET Framework

Component Required Recommended

Processor 400 MHz 800 MHz or higher RAM 96 MB 256 MB or above

Hard Drive

In order to install and run BESTCOMSPlus, a Windows user must have administrator rights. A Windows user with limited rights may not be permitted to save files in certain folders.

Installing BESTCOMSPlus

1. Insert the BESTCOMSPlus CD-ROM into the PC CD-ROM drive.

2. When the BESTCOMSPlus Setup and Documentation CD menu appears, click the Install button for the BESTCOMSPlus application. The setup utility automatically installs BESTCOMSPlus, the .NET Framework, and the DGC-2020 plug-in for BESTCOMSPlus on your PC. If the .NET Framework is already installed on your PC, the setup utility will not overwrite it. However, you should verify that you have the latest version of the .NET Framework at

When BESTCOMSPlus installation is complete, a Basler Electric folder is added to the Windows programs menu. This folder is accessed by clicking the Windows Start button and then accessing the Basler Electric folder in the Programs menu. The Basler Electric folder contains an icon that, when clicked, starts BESTCOMSPlus.

25 MB free (if .NET Framework is already installed on PC.) 50 MB or more 250 MB free (if .NET Framework is not already installed on PC.) 300 MB or more

www.microsoft.com.

Table 4-1.

STARTUP AND ACTIVATION

Starting BESTCOMSPlus

To start BESTCOMSPlus, click the Start button, Programs, Basler Electric, and then the BESTCOMSPlus icon. During initial startup, the BESTCOMSPlus Select Language screen is displayed ( can select to have this screen displayed each time BESTCOMSPlus is started, or you can select a preferred language and this screen will be bypassed in the future. Click OK to continue. This screen can also be accessed by selecting T

The BESTCOMSPlus splash screen is shown for a brief time. See

ools and Select Language from the menu bar.

Figure 4-2. BESTCOMSPlus Select Language Screen

Figure 4-3.

Figure 4-2). You

4-2 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-3. BESTCOMSPlus Splash Screen

The BESTCOMSPlus platform window opens. If a DGC-2020 is connected, select N

ommunication pull-down menu and select DGC-2020. See Figure 4-4. The DGC-2020 plug-in is

the C

ew Connection from

automatically activated after connecting to a DGC-2020.

Figure 4-4. BESTCOMSPlus Select New Device Screen

If a DGC-2020 is not connected, select N

ew from the File pull-down and select DGC-2020.

Activating the DGC-2020 Plug-In

The DGC-2020 plug-in must be activated before it can be used to set up a DGC-2020 product. If the DGC-2020 plug-in has already been activated, skip to Communication.

Requesting an Activation Key

When initially running the DGC-2020 plug-in, the Activate Device pop-up will appear. You must contact Basler Electric for an activation key before you can activate the DGC-2020 plug-in. You may request an activation key through email or the Basler Electric website. Click on either the Website or Email button. Click on the Activate button when you are ready to enter the activation key you received from Basler Electric. The Device Needs Activated pop-up will appear. Refer to

Figure 4-5.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-3

Entering an Activation Key

Select the device from the Device pull-down menu. Enter your Email Address and Activation Key provided by Basler Electric. If you received an email containing the Activation Key, you can select all of the text in the email and copy it to the Windows® clipboard using normal Windows® techniques. The Get Data button will extract the Device, Email Address, and Activation Key from the Windows® clipboard and paste it into the appropriate fields. Click on the Activate button to continue. The Device Needs Activated screen is also found by selecting Activate Device from the T main shell.

Figure 4-5. Device Needs Activated Screen

ools pull-down menu of the BESTCOMSPlus

COMMUNICATION

Remember, you do not have to have a unit connected to the PC to operate BESTCOMSPlus and program settings. If you have an actual unit, you may connect a communication cable between the unit and the appropriate communication port on the PC. If communication is already configured, skip to Establishing Communication.

Connecting the DGC-2020 and PC

Connect a communication cable between the USB or Modem connector of the DGC-2020 and the appropriate port of the PC. Refer to Section 6, Installation, for the required connections between the DGC-2020 and PC.

Configuring Communication

Before communication between BESTCOMSPlus and the DGC-2020 is established, the PC communication port connected to the DGC-2020 must be configured and selected in BESTCOMSPlus. To configure the port, use the Settings Explorer to open the Communications tree branch. Open the tree branch of the communication protocol you wish to configure. Make the appropriate settings. For more information on the Communications tree branch, refer to Section 3, Functional Description, Communication.

To select the communication port, click C

and DGC-2020. Select the method of communicating with the DGC-2020. See

ommunication on the menu bar, followed by New Connection

Figure 4-6.

Figure 4-6. DGC-2020 Connection Screen

4-4 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

The USB drivers are installed automatically during the BESTCOMSPlus installation process. To select the correct COM Port, open Windows

Device Manager and expand the Ports (COM & LPT) tree. Locate the device named CP2101 USB to UART Bridge Controller (COMx). The COM Port number will be displayed in parenthesis (COMx). Be sure operating power is applied to the DGC-2020 and the USB cable is connected before opening the Device Manager.

Installing the USB Driver if Automatic Installation Fails

To install the USB driver for the DGC-2020:

1. Apply operating power to the DGC-2020 and wait for the boot sequence to complete.

2. Plug the proper end of the USB cable into the PC and the other end into the DGC-2020.

3. The Found New Hardware Wizard dialog box pops up.

4. Select “No, not this time” and select Next to continue.

5. Choose to “Install from a list or specific location (Advanced)” and select Next to continue.

6. Insert the CD-ROM labeled BESTCOMSPlus into the PC CD-ROM drive.

7. Browse to the \driver folder on the CD-ROM and select Next to continue.

When installation of the driver is complete, you may be asked to restart your computer.

Establishing Communication

Communication between BESTCOMSPlus and the DGC-2020 is established by clicking on the Connect button on the Connection screen (see bar of the main BESTCOMSPlus screen (

Figure 4-6) or by clicking on the Connect button on the lower menu

Figure 4-1). If you receive an “Unable to Connect to Device” error message, verify that communications are configured properly. If communication is established, BESTCOMSPlus will automatically read all settings and logic from the DGC-2020 and load them into BESTCOMSPlus memory. See

Figure 4-7.

Figure 4-7. Processing, Please Wait… Screen

MENU BARS

The menu bars are located near the top of the BESTCOMSPlus screen (see Figure 4-1). The upper menu bar has five pull down menus. With the upper menu bar, it is possible to manage settings files, setup communications, upload and download settings/security files, and compare settings files. The lower menu bar consists of clickable icons. The lower menu bar is used to change BESTCOMSPlus views, open a settings file, connect/disconnect, preview metering printout, switch to live mode, and send a settings file to the DGC-2020.

Upper Menu Bar (BESTCOMSPlus Shell)

File

• New............................................................... Create a new settings file

• Open.............................................................. Open an existing settings file

• Open File As Text ......................................... Generic file viewer for ∗.csv, ∗.txt, etc. files

• Close............................................................. Close settings file

• Save.............................................................. Save settings file

• Save As......................................................... Save settings file with a different name

• Print Preview................................................. Preview a settings file printout

• Print To File................................................... Save as rich text file type (∗.rtf)

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-5

• Print............................................................... Print a settings file

• Properties...................................................... View properties of a settings file

• History........................................................... View history of a settings file

• Recent Files .................................................. Open a previously opened file

• Exit ................................................................Close BESTCOMSPlus program

Communication

• New Connection............................................Choose new device or DGC-2020

• Close Connection..........................................Close communication connection

• Download Settings and Logic........................ Download operational and logic settings from the device

• Upload Settings............................................. Upload operational settings to the device

• Upload Logic................................................. Upload logic settings to the device

• Download Security........................................ Download security settings from the device

• Upload Security............................................. Upload security settings to the device

• Upload Firmware To Device.......................... Upload a firmware file to the device

• Upload Language Module To Device............ Upload a language module to the device

Tools

• Check For Updates....................................... Check for BESTCOMSPlus updates via the internet

• Select Language........................................... Select BESTCOMSPlus language

• Activate Device ............................................. Activate the product instance (DGC-2020 plug-in)

• Set File Password......................................... Password protect a settings file

• Compare Settings Files.................................Compare settings files

• View Event Log............................................. View the BESTCOMSPlus event log

• Clear Event Log ............................................ Clear the BESTCOMSPlus event log

• Set New File Name....................................... Set a new file name for event log

Window

• Cascade All................................................... Cascade all windows

• Tile ................................................................ Tile horizontally or vertically

• Maximize All.................................................. Maximize all windows

Help

• About............................................................. View general, detailed build, and system information

Lower Menu Bar (DGC-2020 Plug-In)

View

This clickable icon allows you to view the Metering Panel, Settings Panel, or Show Settings Information.

Open File

This clickable icon is used to open a saved settings file.

Connect/Disconnect

Opens the DGC-2020 Connection screen allowing the user to connect via USB or a modem. Also used to disconnect from the device.

Preview Metering

Clicking on this icon will bring up the Print Preview screen where a preview of the Metering printout is shown. Click on the printer icon to send to a printer.

Options

When clicked, a drop-down list appears. Live Mode Settings puts BESTCOMSPlus in Live mode where settings are automatically sent to the device in real time as they are changed.

Send Settings

This button is used when BESTCOMSPlus is not operating in Live Mode. Click on this button after making a setting change to send the modified setting to the DGC-2020.

4-6 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

SETTINGS EXPLORER

The Settings Explorer is a convenient tool within BESTCOMSPlus used to navigate through the various settings screens of the DGC-2020 plug-in as listed in the following paragraphs.

Logic setup will be necessary after making certain setting changes. For more information, refer to Section 5, BESTlogic+ Programmable Logic.

DGC-2020 AND SYSTEM PARAMETERS

Prior to use, the DGC-2020 must be configured for operation in the intended application. The description of these configuration settings is organized as follows:

• General Settings

• Communications

• System Parameters

• Programmable Inputs

• Alarm Configuration

• Generator Protection

• Breaker Management

• Programmable Senders

• BESTlogic+ Programmable Logic

NOTE

In the following descriptions, superscript letters (e.g., settingX) mark words and phrases relating to DGC-2020 settings. Each letter references settings illustrated in BESTCOMSPlus. Lettered notes at the end of each group of descriptions provide the range and increment for each setting.

GENERAL SETTINGS

General DGC-2020 settings consist of settings controlling the HMI display and indicators. Additional general settings include style number configuration, DGC-2020 identification, DGC-2020 version information, and device security setup.

Front Panel HMI

The contrast or compensate for environmental conditions.

A power saving feature, referred to as Sleep mode heater (if equipped) when the DGC-2020 is in Off mode or Auto mode not running and a key is not pressed for more than 15 minutes . Normal display operation is resumed when any front panel button is pressed or the genset is started remotely via the ATS. Sleep mode is enabled and disabled in BESTCOMSPlus.

Specific language modules can be uploaded into the DGC-2020. When the language module upload is complete, use the Language

BESTCOMSPlus front panel HMI settings are illustrated in

of the front panel LCD (liquid crystal display) can be adjusted to suit the viewing angle used

, will turn off the front panel LCD backlight and LCD

selector to select the correct language.

Figure 4-8.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-7

Figure 4-8. BESTCOMSPlus Front Panel HMI Settings

LCD Contrast Value: Adjustable from 0 to 100 (maximum contrast) in increments of 1.

Front Panel Sleep Mode: Enable or Disable.

Language: Default or Alternate.

Style Number

When a PC operating BESTCOMSPlus is communicating with a DGC-2020, the style number of the DGC-2020 is automatically displayed on the BESTCOMSPlus Style Number tab.

When configuring DGC-2020 settings off-line, the style number for the unit to be configured can be entered into BESTCOMSPlus to enable configuration of the required settings.

BESTCOMSPlus style number selections and definitions are illustrated in

Figure 4-9.

Figure 4-9. BESTCOMSPlus DGC-2020 Style Chart Selections and Definitions

Device Information

Information about a DGC-2020 communicating with BESTCOMSPlus can be obtained on the Device Info tab of BESTCOMSPlus.

Read-only information includes application version number

Site-specific information for the DGC-2020 can be assigned by the user. This label includes a device name

, application part numberE, and model numberF.

BESTCOMSPlus device information values and settings are illustrated in

, boot code versionB, application buildC, serial

Figure 4-10.

4-8 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-10. BESTCOMSPlus Device Information Values and Settings

Application Version: Read-only value obtained when BESTCOMSPlus is communicating with the DGC-

2020.

Boot Code Version: Read-only value obtained when BESTCOMSPlus is communicating with the DGC-

2020.

Application Build: Read-only value obtained when BESTCOMSPlus is communicating with the DGC-

2020.

Serial Number: Read-only value obtained when BESTCOMSPlus is communicating with the DGC-

2020.

Application Part Number: Read-only value obtained when BESTCOMSPlus is communicating with the

DGC-2020.

Model Number: Read-only value obtained when BESTCOMSPlus is communicating with the DGC-

2020.

Device ID: Accepts an alphanumeric character string of up to 16 characters.

Device Security Setup

Password protection guards against unauthorized changing of DGC-2020 settings. DGC-2020 passwords are case sensitive. Three levels of password protection are available. Each level is described in the following paragraphs.

• OEM Access. This password level allows access to all settings. The default, OEM-access password is OEM.

• Settings Access. This password level allows all except uploading of firmware and clearing of device event log. The default, settings-access password is SET.

• Operator Access. The default, operator-access password is OP. This password level allows all settings to be read and allows changes to be made to the following:

o LCD Contrast o Sleep Mode o Date/Time o All Sender Fail Time Delays o Metric Conversion o Low Fuel Pre-Alarm Level o Low Fuel Alarm Level o Pre-Start Contact after Cranking o Cooldown Time o Pre-Crank Time Delay o Reset of Maintenance Interval o All controls on the Control screen available via the Metering Explorer in BESTCOMSPlus

Changing Passwords

Passwords can be changed only after communication between the PC and DGC-2020 is established. Changes to passwords are made through the Device Security Setup screen. Use the Settings Explorer in BESTCOMSPlus to open the General Settings, Device Security Setup screen.

The content of the Device Security Setup screen depends on the password level used when accessing the screen. For example, someone logged in with a settings-access password will be able to change only

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-9

the settings-access and operator-access passwords - not the OEM-access password. Figure 4-11 illustrates Device Security Setup screen with all three of the access levels shown.

A password is changed by clicking on the access level on the Save Password button

, entering the new passwordB, and then clicking

Figure 4-11. BESTCOMSPlus Device Security Setup

Access Level/Password: Read-only value obtained when BESTCOMSPlus is communicating with the

DGC-2020.

Password: Accepts an alphanumeric character string of up to 16 characters.

Save Password: Clicking this button will save the password changes in BESTCOMSPlus memory.

COMMUNICATIONS

DGC-2020 communication settings include setup parameters for CANBus, modem, and RS-485 communication.

CANBus

The DGC-2020 CANBus interface provides high-speed communication between the DGC-2020 and the engine control unit (ECU) on an electronically controlled engine. When ECU support is enabled DGC-2020 will ignore the analog coolant temperature, oil pressure, and engine speed inputs and rely upon the ECU for these parameters. The DGC-2020 will also stop calculating engine run time and begin using the run time recorded by the ECU.

When enabled

, the DGC-2020 will receive and retain unsolicited diagnostic trouble codes (DTCs) from

an ECU with DTC capabilities.

A DGC-2020 operating on a CAN network is identified by a unique address number The DGC-2020 can be configured for Standard, Volvo Penta∗, or MTU MDEC

2020 for Volvo Penta necessitates the configuration of two additional settings: Speed Select and Accelerator Position. The Speed Select setting

configures the Volvo Penta ECU to operate the engine at

. Configuring the DGC-

the primary or secondary base speed. If the engine is configured by Volvo for 60 Hz applications, the primary base speed is 1,800 rpm and the secondary base speed is 1,500 rpm. If the engine is configured by Volvo for 50 Hz applications, the primary base speed is 1,500 rpm and the secondary base speed is 1,800 rpm. The Accelerator Position setting

is expressed as a percentage and tells the Volvo Penta ECU where to set the engine speed (trim) relative to the base speed. The range of the setting is the base speed ±120 rpm. A setting of 0% will cause the engine to run at 120 rpm below the base speed, a setting of 50% will cause the engine to run at the base speed, and a setting of 100% will cause the engine to run at 120 rpm above the base speed. The Accelerator Position setting is linear with a gain of 2.4 rpm/percentage. This setting is not saved in nonvolatile memory and defaults back to 50% after DGC2020 operating power is cycled. If the engine is configured by MTU MDEC necessitates the configuration of three additional settings: Select MDEC module type, MDEC speed demand switch, and MDEC engine RPM request. The Select MDEC module type setting Module 302, Module 303, or Module 304. The MDEC speed demand switch setting

selects one of four MDEC ECU types: Module 201,

selects one of six

speed demand sources for the MDEC ECU: Analog Can, Up Down ECU, Up Down Can, Analog ECU,

, the

4-10 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Frequency, or No CAN Demand. The MDEC engine RPM request settingI defines the rated rpm for the engine.

In applications where the ECU is not continuously powered, the DGC-2020 has provisions for applying power to the ECU and pulsing the ECU to update its engine monitoring data. Either the DGC-2020 Fuel Solenoid or Pre-Start relay output can be used to apply power to the ECU

. If the Pre-Start contact is selected, the Fuel Solenoid output will still close during cranking and genset operation to provide a separate indication that the genset is running. For applications where pulsing of the ECU is not desired, this pulsing feature

may be disabled.

∗The Volvo Penta ECU configuration is applicable only to the EDC3 and EMS2 models of Volvo Penta engine controllers.

ECU Limitations

For some ECUs, an external source cannot stop the engine without removing power from the ECU. Turning off power to the ECU is the only way to remove fuel from the engine and shut it down. Different ECU manufacturers have their own rpm setpoints for reapplying fuel to an engine. If the ECU is powered up and the engine is still spinning above 60 rpm, then the ECU will automatically turn the fuel on. Detroit Diesel J1939 ECUs, for example, have a setpoint of 60 rpm.

Not being able to stop the engine without removing ECU power causes two problems. The first problem is that the only way to stop the engine is to turn the ECU off and wait for the engine speed to decrease below 60 rpm before powering the ECU back on. Otherwise, the engine will take off running. The second problem is that while the ECU is off, you can no longer meter and update coolant level, coolant temperature alarm/pre-alarm, and crank control.

The DGC-2020 Solution

The DGC-2020 resolves ECU limitations by using four timers:

• Engine Shutdown.

The time in seconds to stay disconnected from the ECU when going from running to shutdown before starting the first pulse. This timer should allow enough time for the engine to slow down so that when the DGC-2020 pulses, the ECU will not start the engine.

• Pulse Cycle Time.

• Settling Time.

The time in minutes the controller waits before pulsing.

The time in tenths of seconds to gather data after connecting to the ECU during the pulsing state. This allows all the metered values to be sent and ramp as designated by the J1939 protocol. ECU values initially sent are low and the ECU takes time to average out its own data values.

• Response Timeout.

The time in seconds to attempt communication with the ECU when the DGC-

2020 is in the pulsing state or connecting state.

Figure 4-12. BESTCOMSPlus CANBus Setup

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-11

Enable ECU Support: Check box to enable ECU support.

Enable DTC Support: Check box to enable DTC support.

CANBus Address: Accepts an address number from 0 to 253 in increments of 1.

ECU Config: Standard, Volvo Penta, or MTU MDEC.

Speed Select: Primary or Secondary.

Accelerator Position: Adjustable from 0 to 100% in 1% increments.

Select MDEC module type: Can Module 201, 302, 303, or 304.

MDEC speed demand switch: Analog CAN, Analog ECU, Up Down ECU, Up Down Can, Frequency, or

No CAN Demand.

MDEC engine RPM request: Adjustable from 1,400 to 2,000 in increments of 1.

Output Select: Fuel Contact or Pre-start Contact.

Pulsing: Enable or Disable.

Engine Shutdown: Adjustable from 1 to 60 s in 1 s increments.

Pulse Cycle Time: Adjustable from 1 to 60 s in 1 s increments.

Settling Time: Adjustable from 5,500 to 30,000 ms in 1 ms increments.

Response Timeout: Adjustable from 1 to 60 s in 1 s increments.

Modem Setup (Optional)

DGC-2020 controllers with style number xxxxxMxxx are equipped with an internal telephone modem that has dial-in and dial-out capability. The modem gives the DGC-2020 the ability to dial up to four telephone numbers include

and annunciate user-selected conditions to specified pagersB. These user-selected conditio ns

• Auxiliary Input 1 Closed • ECU Low Coolant Level Alarm

• Auxiliary Input 2 Closed • Emergency Stop Alarm

• Auxiliary Input 3 Closed • High Coolant Temp Pre-Alarm

• Auxiliary Input 4 Closed • kW Overload Pre-Alarm

• Auxiliary Input 5 Closed • Loss of ECU Coms Alarm

• Auxiliary Input 6 Closed • Loss of Generator Voltage Sensing Alarm

• Auxiliary Input 7 Closed • Low Battery Voltage Pre-Alarm

• Auxiliary Input 8 Closed • Low Coolant Temp Pre-Alarm

• Auxiliary Input 9 Closed • Low Fuel Alarm

• Auxiliary Input 10 Closed • Low Fuel Pre-Alarm

• Auxiliary Input 11 Closed • Low Oil Pressure Alarm

• Auxiliary Input 12 Closed • Low Oil Pressure Pre-Alarm

• Auxiliary Input 13 Closed • MPU Speed Sender Fail Alarm

• Auxiliary Input 14 Closed • Oil Pressure Sender Fail Alarm

• Auxiliary Input 15 Closed • Overcrank Alarm

• Auxiliary Input 16 Closed • Overspeed Alarm

• Battery Overvoltage Pre-Alarm • Scheduled Maintenance Pre-Alarm

• Coolant Temp Sender Fail Alarm • Switch Not in Auto

• Cooldown Timer Active • Weak Battery Voltage Pre-Alarm

Dial-Out

The DGC-2020 uses telelocator alphanumeric protocol (TAP) version 1.7 when communicating with paging companies. This data format

specifies seven data bits with even parity. If required, eight data bits

with no parity may be specified. The message string sent by the DGC-2020 can be limited to a length supported by the receiving pagers

If a message to be transmitted by the DGC-2020 exceeds the pager message limit, the DGC-2020 will make multiple calls to transmit the complete message.

Dial-out messages are sent by the DGC-2020 at a user-defined interval the opportunity to dial into the DGC-2020. A second user-defined interval

. This interval gives an operator

determines how frequently

dial-out attempts are made following a dial-out failure.

Dial-In

When the DGC-2020 modem shares a line used for voice communication, the number of rings

required for the modem to answer can be increased to allow time for an operator to answer an incoming telephone call.

4-12 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-13. BESTCOMSPlus Modem Setup

Dial Out Number: Accepts a telephone number of up to 16 characters.

Pager ID: Accepts a pager identification number of up to 16 characters.

Modem Dialout Conditions: Check boxes to select conditions that will initiate a dial-out message.

Pager Coms Data Format: 7 bit – Even Parity or 8 bit – No Parity.

Pager Buffer Limit: Adjustable from 80 to 200 characters in increments of 40.

Modem Offline Delay: Adjustable from 1 to 240 min in 1 min increments.

Inter Dialout Activation Delay: A delay of 15, 30, 60, or 120 s may be selected.

Rings for Modem Answer: Adjustable from 1 to 9 in increments of 1.

RS-485 (Optional)

DGC-2020 controllers with the optional RS-485 communication port (style number xxxRxxxxx) can be monitored and controlled via a polled network using the Modbus protocol. Adjustable RS-485 port settings include the baud rate

, parityB, and port addressC. Fixed RS-485 port settings include the number of data

bits (8) and stop bits (1). Modbus register values for the DGC-2020 are listed and defined in Appendix B, Modbus Communication. BESTCOMSPlus RS-485 port settings are illustrated in

Figure 4-14.

Figure 4-14. BESTCOMSPlus RS-485 Port Settings

Baud Rate: A value of 1200, 2400, 4800, or 9600 may be selected.

Parity: No Parity, Odd Parity, or Even Parity.

Modbus Address: A value of 1 to 247 may be entered in increments of 1.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-13

SYSTEM PARAMETERS

System parameters configure the DGC-2020 for operation with a specific application and are divided into three categories: system, engine cranking, and sensing transformers.

System Settings

The following settings are used to configure the DGC-2020 for operation with a specific genset application.

Genset Electrical Parameters

Genset electrical parameters used by the DGC-2020 include the genset connection type, power rating, and voltage rating.

Genset connection types

accommodated by the DGC-2020 include three, three-phase configurations (delta, wye, and four-wire delta) and two single-phase configurations (sensing across phases A and B or A and C).

The DGC-2020 is compatible with gensets having power ratings

up to 9,999 kW and voltage ratingsC up

to 999 Vac.

Engine Speed Measurement

The DGC-2020 can be configured to detect engine speed

from a magnetic pickup (MPU), the genset

frequency, or both the MPU and genset frequency. When engine speed is obtained from the genset frequency, the DGC-2020 uses the rated (nominal)

genset frequency When engine speed is obtained from an MPU, the DGC-2020 uses the nominal rpm rating

number of flywheel teeth

and nominal rpm ratingF when calculating engine rpm.

when calculating engine rpm.

and the

The speed signal from the MPU takes priority when both the genset frequency and MPU are selected as the engine speed source. If both MPU and genset frequency are selected and the MPU fails, the DGC2020 will automatically switch to the genset frequency as the engine speed source.

When the CAN interface is used, the speed signal source settings must be set at MPU or MPU_Gen. This allows the DGC-2020 to receive the engine speed data sent by the ECU via the SAE J1939 protocol.

Engine Cooldown

After a genset’s load is removed, the DGC-2020 can ensure proper engine and turbocharger cooldown by maintaining engine operation for a user-specified duration. The cooldown time delay

is initiated for any

one of the following conditions:

• Genset load is removed and engine shutdown is permitted

• Auto transfer switch (ATS) opens while operating in Auto mode

• Remote shutdown is initiated

EPS Threshold

Indication that the emergency power system is supplying load is determined by a user-adjustable threshold setting

Measurement/Metering Units

The user can configure the DGC-2020 to display and report engine oil pressure and coolant temperature in English or metric units of measure

Battery Voltage

The nominal voltage

expressed as a percentage of the genset CT (nominal) primary rating.

of the starter battery is used by the DGC-2020 to detect and annunciate battery

overvoltage and low or weak battery voltage.

NFPA Compliance Level

The DGC-2020 can be used in an application requiring compliance with NFPA Standard 110. Levels 1 and 2 of Standard 110 are supported

. Selecting level 1 or 2 affects DGC-2020 operation in the following

ways:

• The number of crank cycles is fixed at 3

• Crank cycle time is fixed at 15 seconds

• Continuous crank time is fixed at 45 seconds

• The low coolant temperature pre-alarm setting is fixed at 70°F

4-14 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Horn

An output contact configured (through programmable logic) to energize a horn disabled through BESTCOMSPlus or at the DGC-2020 front panel.

can be enabled and

Single-Phase Override

The DGC-2020 will switch to single-phase voltage sensing

when a contact input (programmed as a

single-phase override input) is received. Either A-to-B or A-to-C sensing can be selected.

Fuel Level Function

This setting

allows the selection of four fuel types: Fuel Lvl, Natural Gas, Liquid Propane, or Disabled. Selecting a fuel type other than Fuel Lvl will disable any fuel level indication, alarm, and pre-alarm and disable the Fuel Level value on the Engine screen of the Metering Explorer in BESTCOMSPlus.

BESTCOMSPlus system settings (DGC-2020, System Parameters, System Settings) are illustrated in Figure 4-15.

Figure 4-15. BESTCOMSPlus System Settings

Generator Connection: Delta, Wye, 1-Phase A-B, 1-Phase A-C, or 4-Wire Delta.

Genset kW Rating: Adjustable from 5 to 9,999 kW in 1 kW increments.

Rated Volts: Adjustable from 1 to 999 Vac in 1 Vac increments.

Speed Signal Source: MPU, Gen Freq, or MPU_Gen Freq.

Rated Frequency: 50/60 or 400 Hz.

Rated Engine RPM: Adjustable from 750 to 3,600 rpm in 1 rpm increments.

Number Fly Wheel Teeth: Adjustable from 50 to 500 in increments of 1.

No Load Cool Down Time: Adjustable from 0 to 60 minutes in 1 minute increments.

EPS Current Threshold: Adjustable from 3 to 10% of the CT primary rating in 1% increments.

System Units: Either English or Metric.

Battery Volts: Either 12 or 24 Vdc.

NFPA Level: 0 disables NFPA compliance, 1 enables Level 1 NFPA compliance, 2 enables Level 2.

Horn: either Enable or Disable.

1 Phase Override Sensing: Either phases A-B or phases A-C.

Fuel Level Function: Disable, Fuel Lvl, Natural Gas, or Liquid Propane.

Crank Settings

The DGC-2020 can be programmed for either cycle or continuous engine cranking provides multiple engine starting attempts cranking

followed by a rest interval of the same duration. Continuous crankingD provides a single,

. Each starting attempt consists of a fixed interval of engine

. Cycle cranking

extended engine-starting attempt. The DGC-2020 uses the engine speed signal (supplied by a magnetic pickup (MPU) or the generator

frequency) and the Crank Disconnect Limit setting

to detect engine startup (and determine when engine cranking can be stopped). The Crank Disconnect Limit setting is expressed as a percentage of the nominal engine speed.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-15

If desired, cycle or continuous cranking can be delayed after initiating engine startup. During this delayF, the Pre-Start output closes to energize the engine glow plugs or pre-start lubrication pump. The Pre-Start output can be configured to open upon the conclusion of engine cranking or remain closed as long as the engine is running

BESTCOMSPlus engine cranking settings (DGC-2020, System Parameters, Crank Settings) are illustrated in

Figure 4-16.

Figure 4-16. BESTCOMSPlus Engine Cranking Settings

Cranking Style: Cycle or Continuous.

Number of Crank Cycles: Adjustable from 1 to 7 cycles in 1 cycle increments. Controlle rs configured for

NFPA compliance have a 1 to 3-cycle range.

Cycle Crank Time: Adjustable over the range of 5 to 15 seconds in 1 second increments.

Continuous Crank Time: Adjustable from 5 to 60 seconds in 1 second increments. Controllers

configured for NFPA compliance have a 1 to 45 second range.

Crank Disconnect Limit: Adjustable from 10 to 100% of nominal engine speed.

Pre-Crank Delay: Adjustable from 0 to 30 seconds in 1 second incre ments.

Pre-Start Contact Configuration: “Closed While Running” or “Open After Disconnect”.

Sensing Transformers

Three sets of transformer settings configure the DGC-2020 for operation with a specific system. These settings, along with the generator voltage, generator current, and bus voltage detected by the DGC-2020, enable the DGC-2020 to accurately meter system values, offer generator protection, and synchronize the generator with the bus (style number xxxxxxxAx only).

Generator PT Settings

The generator PT settings establish the nominal primary

(generator side) and secondaryB (DGC-2020

side) voltage levels at the generator voltage-sensing transformer.

Generator CT Setting

The generator CT setting

establishes the nominal, primary (generator side) current level at the generator current sensing transformer. The secondary value of the generator CT is dictated by the style number of the controller. A DGC-2020 with a style number of 1xxxxxxxx uses a nominal CT secondary rating of 1 Aac. A DGC-2020 with a style number of 5xxxxxxxx uses a nominal CT secondary rating of 5 Aac.

Bus Transformer Settings

Primary and secondary bus transformer ratings are used by the automatic transfer switch function, which monitors a single-phase bus input to detect mains failure. Controllers equipped with an automatic synchronizer (style number xxxxxxxAx) also use the primary and secondary bus transformer ratings. The primary setting setting

establishes the nominal voltage seen at the bus voltage input of the DGC-2020.

establishes the nominal voltage present at phases A and C of the bus. The secondary

BESTCOMSPlus sensing transformer settings (DGC-2020, System Parameters, Sensing Transformers) are illustrated in

Figure 4-17.

4-16 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-17. BESTCOMSPlus Sensing Transformers Parameters

Gen PT Primary Volts: Adjustable from 1 to 9999 Vac in 1 Vac increments.

Gen PT Secondary Volts: Adjustable from 1 to 480 Vac in 1 Vac increments.

Gen CT Primary Amps: Adjustable from 1 to 5,000 Aac in 1 Aac increments.

Bus PT Primary Volts: Adjustable from 1 to 9999 Vac in 1 Vac increments.

Bus PT Secondary Volts: Adjustable from 1 to 480 Vac in 1 Vac increments.

PROGRAMMABLE INPUTS

DGC-2020 contact inputs can be assigned to trigger various functions and, when triggered, annunciate an alarm or pre-alarm. A user-assigned label can be assigned to each input to make identification easier. The description of these settings is organized as follows:

• Configurable inputs

• Programmable Functions

Configurable Inputs

Each of the 16 contact inputs can be independently configured to annunciate an alarm or pre-alarm when the input senses a contact closure. A user-adjustable time delay

can be set to delay recognition of

a contact input. By default, all inputs are configured so that they do not trigger an alarm or pre-alarm.

To make identifying the contact inputs easier, a user-assigned name

can be given to each input.

BESTCOMSPlus settings for the configurable contact inputs (DGC-2020, Programmable Inputs, Configurable Inputs) are illustrated in

Figure 4-18.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-17

Figure 4-18. BESTCOMSPlus Configurable Inputs Settings

Alarm Configuration: None, Prealarm, or Alarm.

Activation Delay: Adjustable from 0 to 300 s in 1 s increments.

Label Text: An alphanumeric character string with a maximum of 16 characters.

Programmable Functions

Any of the 16 contact inputs can be programmed to recognize any one of nine function types:

• Automatic Transfer Switch (ATS)

• Battle Override

• Low-Line Override

• Grounded Delta Override

• Single-Phase Override

- The alarms programmed to shut down the unit will be overridden and ignored.

- The 51, 27, and 59 settings are scaled by the low-line scale factor setting.

- The unit switches to single phase sensing configuration and uses the

- Disconnect from the mains and start the generator.

- Uses Grounded Delta sensing if the generator connection is set for Delta.

1 Phase Override Sensing setting (A-B or A-C). (Note: Applies only when the Single-Phase Override (A-C) input is not

• Single-Phase Override (A-C)

invoked.)

- The unit switches to single phase A-C sensing configuration

even if the 1 Phase Override Sensing setting is set for A-B. (Note: Applies only when the Single-Phase Override input is invoked.)

•

Battery Charger FailG - When the selected input is invoked, a user selectable pre-alarm or alarm is annunciated after the activation delay.

•

Low Coolant LevelH - When the selected input is invoked, a user selectable pre-alarm or alarm is annunciated after the activation delay.

•

Fuel Leak DetectI - When the selected input is invoked, a user selectable pre-alarm or alarm is annunciated after the activation delay.

A setting of “None” prevents a function from being triggered by a contact input. BESTCOMSPlus settings for programmable functions (DGC-2020, Programmable Inputs, Programmable

Functions) are illustrated in

Figure 4-19.

4-18 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-19. BESTCOMSPlus Settings for Programmable Functions

Auto Transfer Switch Input: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Battle Override: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Low Line Override: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Grounded Delta Override: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Single Phase Override: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Single Phase AC Override: None, Input 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Battery Charger Fail: Select Input (None, 1-16), Alarm Configuration (None, Alarm, Prealarm), and

Activation Delay (s) (0 to 300 in increments of 1).

Low Coolant Level: Select Input (None, 1-16), Alarm Configuration (None, Alarm, Prealarm), and

Activation Delay (s) (0 to 300 in increments of 1).

Fuel Leak Detect: Select Input (None, 1-16), Alarm Configuration (None, Alarm, Prealarm), and

Activation Delay (s) (0 to 300 in increments of 1).

PROGRAMMABLE OUTPUTS

DGC-2020 output contacts include four user-programmable output contacts if the style number is xxAxxxxxx. If the style number is xxBxxxxxx, twelve output contacts are provided.

Configurable Outputs

To make identifying the output contacts easier, each of the output contacts can be given a user-assigned

name BESTCOMSPlus settings for the configurable output contacts (DGC-2020, Programmable Outputs,

Configurable Outputs) are illustrated in

Figure 4-20.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-19

Figure 4-20. BESTCOMSPlus Configurable Outputs Settings

Label Text: An alphanumeric character string with a maximum of 16 characters.

ALARM CONFIGURATION

DGC-2020 alarms and pre-alarms can be used to annunciate system, genset, and engine sender conditions. The description of the alarm configuration settings is organized as follows:

• Pre-Alarms

• Alarms

• Sender Failure

Pre-Alarms

A pre-alarm is annunciated when a condition programmed to trigger a pre-alarm is met. When a pre-alarm condition exists, it is annunciated (flashed) on the LCD, the front panel Alarm indicator flashes on and off and the Horn output (if programmed and enabled) alternates between an energized and de-energized state. The audible alarm is reset by pressing the front panel Alarm Silence pushbutton. When a pre-alarm condition ceases to exist for pre-alarms other than weak battery, all displayed annunciations are reset automatically. A weak battery pre-alarm condition is reset through the front panel by navigating to the Alarms-Status, Pre-Alarms screen, scrolling through the list of pre-alarms until “Weak Battery” is displayed, and pressing the Reset key.

Active pre-alarms for oil pressure, fuel level, coolant temperature, and battery voltage are displayed on the main display of the LCD. The LCD annunciates an active pre-alarm by alternating the pre-alarm message with the normally displayed data. All other pre-alarms are individually displayed, in sequence, by scrolling through the LCD pre-alarms list.

Each DGC-2020 pre-alarm is described in the following paragraphs. Pre-alarms may be enabled and adjusted in BESTCOMSPlus or through the front panel HMI.

BESTCOMSPlus pre-alarm settings (DGC-2020, Alarm Configuration, Pre-Alarms) are illustrated in Figure 4-21.

High Fuel Level

High fuel level pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled,

a high fuel level pre-alarm occurs when the metered fuel level increases above the threshold setting.

Low Battery Voltage

Low battery voltage pre-alarm settings

consist of an enable/disable setting, a threshold setting, and an activation time delay. If enabled, a low battery voltage pre-alarm occurs when the battery voltage decreases below the threshold setting for the duration of the activation time delay. The threshold setting range is based on the nominal battery voltage setting on the BESTCOMSPlus System Settings tab (DGC2020, System Parameters, System Settings).

Weak Battery Voltage

Weak battery voltage pre-alarm settings

consist of an enable/disable setting, a threshold setting, and an activation time delay. If enabled, a weak battery voltage pre-alarm latches during engine cranking when the battery voltage decreases below the threshold setting for the duration of the activation time delay. The threshold setting range is based on the nominal battery voltage setting on the BESTCOMSPlus System Settings tab (DGC-2020, System Parameters, System Settings).

4-20 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

A weak battery pre-alarm condition is reset through the front panel by navigating to the Alarms-Status, Pre-Alarms screen, scrolling through the list of pre-alarms until “Weak Battery” is displayed, and pressing the Reset key.

Battery Overvoltage

Battery overvoltage pre-alarm settings

consist of an enable/disable setting and a fixed threshold setting. If enabled, a battery overvoltage pre-alarm occurs when the battery voltage increases above the threshold setting.

Maintenance Interval

Maintenance interval pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, a maintenance interval pre-alarm is annunciated when the DGC-2020 maintenance timer counts down to zero from the threshold time setting.

Engine KW Overload

By comparing the genset power output with the rated genset output, the level of engine loading can be determined. Engine overload pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, an engine overload pre-alarm occurs when the metered power level exceeds the threshold setting. The threshold setting is expressed as a percentage of the genset kW rating on the BESTCOMSPlus System Settings tab (DGC-2020, System Parameters, System Settings).

Low Fuel Level

Low fuel level pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled,

a low fuel level pre-alarm occurs when the metered fuel level decreases below the threshold setting.

High Coolant Temp

High coolant temperature pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, a high coolant temperature pre-alarm is annunciated when the engine coolant temperature exceeds the threshold setting for a fixed duration of 60 seconds.

Low Coolant Temp

Low coolant temperature pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, a low coolant temperature pre-alarm occurs when the engine coolant temperature decreases below the threshold setting.

Low Coolant Level

Low coolant level pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, a low coolant level pre-alarm occurs when the metered coolant level decreases below the threshold setting.

Low Oil Pressure

Low oil pressure pre-alarm settings

consist of an enable/disable setting and a threshold setting. If enabled, a low oil pressure pre-alarm is annunciated when the engine oil pressure decreases below the threshold setting for a fixed duration of 10 seconds.

ECU Com’s Fail

ECU communication failure pre-alarm settings

consist of a single enable/disable setting. If enabled, an ECU communication failure pre-alarm is annunciated when the DGC-2020 detects a communication problem in the J1939 interface linking the DGC-2020 with the ECU (engine control unit).

Active DTC

Active DTC (diagnostic trouble code) pre-alarm settings

consist of a single enable/disable setting. If CAN and DTC support are both enabled, an “active DTC” pre-alarm may be enabled to announce the presence of a condition that is causing a DTC to be sent from the ECU to the DGC-2020.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-21

Figure 4-21. BESTCOMSPlus Pre-Alarms Settings

High Fuel Level: Enable or Disable, threshold is adjustable from 0 to 100% in 1 % increments.

Low Battery Voltage: Enable or Disable, threshold is adjustable from 6 to 12 Vdc (12 Vdc battery) or 12 to 24 Vdc (24 Vdc battery) in 1 Vdc increments. Activation delay is adjustable from 1 to 10 s in 1 s increments.

Weak Battery Voltage: Enable or Disable, threshold is adjustable from 4 to 8 Vdc (12 Vdc battery) or 8 to 16 Vdc (24 Vdc battery). Activation time delay is adjustable from 1 to 10 s in 1 s increments.

Battery Overvoltage: Enable or Disable, threshold is adjustable from 12 to 32 Vdc in 0.1 increments.

Maintenance Interval: Enable or Disable, threshold is adjustable from 0 to 5,000 h in 1 h increments.

Engine kW Overload: Enable or Disable, threshold is adjustable from 95 to 140% of Genset kW Rating

in 1% increments.

Low Fuel Level: Enable or Disable, threshold is adjustable from 10 to 100% in 1 % increments.

High Coolant Temp: Enable or Disable, threshold is adjustable from 100 to 280°F or 38 to 138°C in 1° increments. Activation time delay is fixed at 60 s.

Low Coolant Temp: Enable or Disable, threshold is adjustable from 50 to 100°F or 10 to 38°C in 1°

increments.

Low Coolant Level: Enable or Disable, threshold is adjustable from 1 to 99% in 1 % increments.

Low Oil Pressure: Enable or Disable, threshold is adjustable from 3 to 150 psi or 21 to 1,034 kPa in 7 psi or kPa increments. Activation time delay is fixed at 10 s.

ECU Comm’s Fail: Enable or Disable.

Active DTC: Enable or Disable.

Alarms

An alarm is annunciated when a condition programmed to trigger an alarm is detected. When an alarm condition exists, the front panel Alarm indicator lights, the Horn output (if programmed and enabled) energizes, and the cause of the alarm is displayed on the front panel LCD. An alarm condition stops the engine by opening the Fuel output contact. Alarms are reset when the DGC-2020 is set to Off mode.

Each DGC-2020 alarm is described in the following paragraphs. Alarms may be enabled and adjusted in BESTCOMSPlus or through the front panel HMI.

BESTCOMSPlus alarm settings (DGC-2020, Alarm Configuration, Alarms) are illustrated in

Figure 4-22.

High Coolant Temperature

High coolant temperature alarm settings

consist of an enable/disable setting and a threshold setting. If

enabled, a high coolant temperature alarm is triggered instantaneously when the engine coolant

4-22 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

temperature exceeds the threshold setting. The high coolant temperature alarm has an arming delay that disables the alarm for 60 seconds after engine startup.

Low Oil Pressure

Low oil pressure alarm settings

include an enable/disable setting, an arming time delay, and a threshold setting. If enabled, a low oil pressure alarm is triggered instantaneously when the engine oil pressure decreases below the threshold setting. The arming time delay disables the low oil pressure alarm function for a user-adjustable time during engine startup.

Overspeed

Overspeed alarm settings

include an enable/disable setting, an activation delay, and a threshold setting. If enabled, an overspeed alarm occurs when the engine speed (in rpm) exceeds the threshold setting for the duration of the activation time delay.

Low Fuel Level

Low fuel level alarm settings

consist of an enable/disable setting, an activation delay setting, and a threshold setting. If enabled, a low fuel level alarm is triggered when the metered fuel level drops below the threshold setting for the duration of the activation time delay.

Low Coolant Level

Low coolant level alarm settings

consist of an enable/disable setting and a threshold setting. If enabled,

a low coolant level alarm is triggered when the metered coolant drops below the threshold setting.

Figure 4-22. BESTCOMSPlus Alarms Settings

High Coolant Temp: Enable or Disable, threshold is adjustable from 100 to 280°F or 38 to 138°C in 1°

increments. Arming time delay is fixed at 60 s.

Low Oil Pressure: Enable or Disable, threshold is adjustable from 3 to 150 psi or 21 to 1,034 kPa in 7

psi or 1 kPa increments. Arming time delay is adjustable from 5 to 15 s in 1 s increments.

Overspeed: Enable or Disable, threshold is adjustable from 105 to 140% of the rated engine rpm.

Activation time delay is adjustable from 0 to 500 s in 1 s increments.

Low Fuel Level: Enable or Disable, threshold is adjustable from 0 to 100% in 1% increments. Activation

time delay is adjustable from 0 to 30 in 1 s increments.

Low Coolant Level: Enable or Disable, threshold is adjustable from 1 to 99% in 1% increments.

Sender Fail

The DGC-2020 can be configured to annunciate a pre-alarm or alarm when a loss of signal is detected at the coolant temperature (when the DGC-2020 is operating in Run or Auto mode with the ATS closed) can also be configured to trigger a pre-alarm or alarm. The speed sender fail

, oil pressureB, or fuel level senderC input. A loss of generator sensing voltageD

alarm is always enabled. A user-adjustable time

delay is provided for each sender/sensing alarm/pre-alarm.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-23

Alarm and pre-alarm annunciations for loss of engine speed signals is not user-programmable and operates as follows. If the MPU (magnetic pickup) or generator frequency is programmed as the sole engine speed source and that signal source fails, an alarm (and shutdown) is triggered. If the engine speed source is configured as MPU and

generator frequency and a loss of one of the signal sources

occurs, a pre-alarm is annunciated. An alarm (and shutdown) is triggered if both speed signals are lost. BESTCOMSPlus settings for the sender fail functions (DGC-2020, Alarm Configuration, Sender Fail) are

illustrated in

Figure 4-23.

Figure 4-23. BESTCOMSPlus Sender Fail Setting

Coolant Temp Sender Fail: None, Alarm, or Prealarm, time delay adjustable from 5 to 30 min in 1 min

increments.

Oil Pressure Sender Fail: None, Alarm or Prealarm, time delay adjustable from 0 to 300 s in 1 s

increments.

Fuel Level Sender Fail: None, Alarm, or Prealarm, time delay adjustable from 0 to 300 s in 1 s

increments.

Voltage Sensing Fail: None, Alarm, or Prealarm, time delay adjustable from 0 to 300 s in 1 s

increments.

Speed Sender Fail: Time delay adjustable from 0 to 300 s in 1 s increments.

GENERATOR PROTECTION

Two tiers of generator protection are offered. DGC-2020 controllers with style number xxxxxxSxx offer standard protection consisting of undervoltage (27), overvoltage (59), overfrequency (81O), and underfrequency (81U) elements. Controllers with style number xxxxxxExx offer enhanced protection, which consists of the standard protection elements plus phase-sequence voltage (47) and time overcurrent (51) elements.

The description of generator protection is organized as follows:

• Voltage (27, 59, 47)

• Frequency (81)

• Overcurrent (51)

Voltage Protection

Voltage protection elements consist of undervoltage, overvoltage, and phase-sequence voltage (style number xxxxxxExx only). BESTCOMSPlus voltage protection settings (DGC-2020, Generator Protection, Voltage) are illustrated in

Undervoltage (27)

Figure 4-24.

Two sets of undervoltage settings are provided: one for three-phase generator connections and one for single-phase generator connections. The pickup setting entered is based on the VT secondary side

4-24 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

(DGC-2020). When a single-phase override contact input is received, the DGC-2020 automatically switches from the three-phase undervoltage settings to the single-phase undervoltage settings.

An undervoltage condition is annunciated when the average of the three-phase (three-phase mode) or the line-to-line voltage (single-phase mode) decreases below the corresponding 27 pickup setting duration of the corresponding 27 activation delay trigger a pre-alarm

(warning) or alarmC (shutdown). An undervoltage annunciation can also be user-

. An undervoltage annunciation can be user-selected to

for the

configured to close a programmable output.

A frequency-based inhibit setting

prevents a 27 trip from occurring during an undervoltage condition

associated with system startup.

A low-line scale factor setting

is used to automatically adjust the undervoltage pickup settings in applications that may utilize more than one type of genset connections. The scale factor setting is implemented when the DGC-2020 senses a contact closure at a contact input programmed to activate scaling of the protection settings. The value of the scale factor setting serves as a multiplier for the pickup settings. For example, if a scale factor contact input is received by the DGC-2020 and the scale factor setting is 2.000, the pickup setting will be doubled (2.000 × PU).

Overvoltage (59)

Two sets of overvoltage settings are provided: one for three-phase generator connections and one for single-phase generator connections. The pickup setting entered is based on the VT secondary side (DGC-2020). When a single-phase override contact input is received, the DGC-2020 automatically switches from the three-phase overvoltage settings to the single-phase overvoltage settings.

An overvoltage condition is annunciated when the average of the three-phase (three-phase mode) or the line-to-line voltage (single-phase mode) increases above the corresponding 59 pickup setting duration of the corresponding 59 activation delay trigger a pre-alarm

(warning) or alarmH (shutdown). An overvoltage annunciation can also be user-

. An overvoltage annunciation can be user-selected to

for the

configured to close a programmable output.

A low-line scale factor setting

is used to automatically adjust the overvoltage pickup settings in applications that may utilize more than one type of genset connections. The scale factor setting is implemented when the DGC-2020 senses a contact closure at a contact input programmed to activate scaling of the protection settings. The value of the scale factor setting serves as a multiplier for the pickup settings. For example, if a scale factor contact input is received by the DGC-2020 and the scale factor setting is 2.000, the pickup setting will be doubled (2.000 × PU).

Phase Imbalance (47)

DGC-2020 controllers with enhanced generator protection (style number xxxxxxExx) are capable of protecting against voltage imbalances between any of the three phases. The pickup setting entered is based on the VT secondary side (DGC-2020). A phase imbalance condition is annunciated when the difference between any of the three phases of generator voltage increases above the 47 pickup setting for the duration of the 47 activation delay setting to trigger a pre-alarm

(warning) or alarmL (shutdown). A phase imbalance annunciation can also be user-

. A phase imbalance annunciation can be user-selected

configured to close a programmable output.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-25

Figure 4-24. BESTCOMSPlus Voltage Protection Settings

Undervoltage Pickup: Adjustable from 70 to 576 Vac in 1 Vac increments.

Undervoltage Activation Delay: Adjustable from 0 to 30 s in 0.1 s increments.

Undervoltage Alarm Configuration: None, Alarm, or Prealarm.

Undervoltage Inhibit Frequency: Adjustable from 20 to 400 Hz in 1 Hz increments.

Undervoltage Low Line Scale Factor: Adjustable from 0 to 3.000 in increments of 0.001.

Overvoltage Pickup: Adjustable from 70 to 576 Vac in 1 Vac increments.

Overvoltage Activation Delay: Adjustable from 0 to 30 s in 0.1 s increments.

Overvoltage Alarm Configuration: None, Alarm, or Prealarm.

Overvoltage Low Line Scale Factor: Adjustable from 0 to 3.000 in increments of 0.001.

Phase Imbalance Pickup: Adjustable from 5 to 100 Vac in 1 Vac increments.

Phase Imbalance Activation Delay: Adjustable from 0 to 30 s in 0.1 s increments.

Phase Imbalance Alarm Configuration: None, Alarm, or Prealarm.

Frequency Protection

Two sets of frequency protection settings are provided: one for underfrequency (81U) and one for overfrequency (81O).

Underfrequency

An underfrequency condition is annunciated when the generator frequency decreases below the 81U pickup setting be user-selected to trigger a pre-alarm

for the duration of the 81U activation delay settingB. An underfrequency annunciation can

(warning) or alarmC (shutdown). An underfrequency annunciation

can also be user-configured to close a programmable output.

A voltage-based inhibit setting

prevents an 81U trip from occurring during an underfrequency condition

associated with system startup.

Overfrequency

When the generator frequency increases above the 81O pickup setting activation delay setting be user-selected to trigger a pre-alarm

, an overfrequency condition is annunciated. An overfrequency annunciation can

(warning) or alarm (shutdown). An overfrequency condition can

for the duration of the 81O

also be user configured to close a programmable output.

4-26 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Figure 4-25. BESTCOMSPlus Frequency Protection Settings

Underfrequency Pickup: Adjustable from 45 to 66 Hz in 0.1 Hz increments for 50/60 Hz controllers (style number x1xxxxxxxx). Adjustable from 360 to 440 Hz in 0.1 Hz increments for 400 Hz controllers (style number x2xxxxxxxx).

Underfrequency Activation Delay: Adjustable from 0 to 30 s in 0.1 s increments.

Underfrequency Alarm Configuration: None, Alarm, or Prealarm.

Underfrequency Inhibit Volts: Adjustable from 70 to 576 Vac in 1 Vac increments.

Overfrequency Pickup: Adjustable from 45 to 65 Hz in 0.1 Hz increments for 50/60 Hz controllers (style number x1xxxxxxxx). Adjustable from 360 to 440 Hz in 0.1 Hz increments for 400 Hz controllers (style number x2xxxxxxxx).

Overfrequency Activation Delay: Adjustable from 0 to 30 s in 0.1 s increments.

Overfrequency Alarm Configuration: None, Alarm, or Prealarm.

Overcurrent Protection

Two sets of overcurrent settings are provided: one for three-phase generator connections and one for single-phase generator connections. The pickup setting entered is based on the CT secondary side (DGC-2020). When a single-phase override contact input is received by the DGC-2020, the overcurrent protection settings automatically switch from the three-phase settings to the single-phase overcurrent protection settings.

When any of the phase currents increase above the pickup setting time delay, an overcurrent condition is annunciated. An overcurrent annunciation can be user-selected to trigger a pre-alarm

(warning) or alarmB (shutdown). An overcurrent annunciation can also be user-

for the duration of the overcurrent

configured to close a programmable output.

The overcurrent time delay is controlled by a time dial setting

and a curve settingD. The curve setting can be set at F (fixed) or one of 16 inverse time characteristic curves can be selected. When the fixed curve setting is selected, the time dial setting determines the overcurrent time delay with no regard to the generator current level. When one of the inverse time characteristic curves is selected, the time dial setting, along with the level of measured generator current, determines the overcurrent time delay. As overcurrent protection settings are entered in BESTCOMSPlus, a plot

of the settings is automatically created to illustrate the overcurrent pickup curve. The available time characteristic curves are listed below and illustrated in Appendix A, Time Overcurrent Characteristic Curves.

• A, standard inverse • I2, inverse

• B, very inverse • L1, long inverse

• C, extremely inverse • L2, long inverse

• D, definite • M, moderately inverse

• E1, extremely inverse • S1, short inverse

• E2, extremely inverse • S2, short inverse

• G, long inverse • V1, very inverse

• I1, inverse • V2, very inverse

A low-line scale factor setting

is used to automatically adjust the overcurrent pickup settings in applications that may utilize more than one type of genset connections. The scale factor setting is implemented when the DGC-2020 senses a contact closure at a contact input programmed to activate scaling of the protection settings. The value of the scale factor setting serves as a multiplier for the pickup

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-27

settings. For example, if a scale factor contact input is received by the DGC-2020 and the scale factor setting is 2.000, the pickup setting will be doubled (2.000 × PU).

The graph can be set

to display the 1 Phase or 3 Phase curve as determined by the settings on the left

side of the chart. BESTCOMSPlus overcurrent protection settings (DGC-2020, Generator Protection, Overcurrent) are

illustrated in

Figure 4-26.

Figure 4-26. BESTCOMSPlus Overcurrent Protection Settings

Pickup: Adjustable from 0.9 to 7.75 Aac for 5 Aac current sensing (style number 5xxxxxxxx) or 0.18 to

1.18 Aac for 1 Aac current sensing (style number 1xxxxxxxx).

Alarm Configuration: None, Alarm, or Prealarm

Time Dial: Adjustable from 0 to 30 s for F (fixed) curve, 0 to 9.9 for all other curve selections.

Curve: A, B, C, D, E1, E2, F, G, I1, I2, L1, L2, M, S1, S2, V1, or V2.

Overcurrent Pickup Curve.

Low Line Scale Factor: Adjustable from 0 to 3.000 in 0.001 increments.

Display: 1 Phase or 3 Phase.

BREAKER MANAGEMENT

DGC-2020 breaker management features include the control of two, continuous- or pulse-controlled breakers, load transfer upon detection of a mains failure, two modes of automatic genset synchronization, and settings for stable or dead bus detection.

The description of breaker management is organized as follows:

• Breaker Hardware

• Bus Condition Detection

• Synchronizer

Breaker Hardware

By default, one (generator) breaker is enabled applications requiring control of a generator breaker and mains breaker, a second (mains) breaker can be enabled

and configured.

When two breakers are configured (enabled), the DGC-2020 can be enabled to automatically transfer load power from the mains to the genset during a mains failure

4-28 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

for control and monitoring by the DGC-2020. In

. This feature also enables the DGC-2020

to transfer the load back to the mains once mains power is restored. Settings include a transfer delayD, return delay

Breakers controlled by pulse or continuous inputs are supported

open During synchronization of the generator with the bus (Anticipatory mode only), the DGC-2020 uses the

breaker closing time When a close command is issued, the DGC-2020 monitors the breaker status and annunciates a breaker

failure if the breaker does not close within the time defined by the breaker-close wait-time delay

, and max transfer timeF.

and closeI pulse widths are provided.

to calculate the optimum time to close the breaker.

. Separate settings for each breaker’s

Typically, this parameter is set to be longer than twice the breaker closing time.

Figure 4-27. BESTCOMSPlus Breaker Hardware Settings

Generator Breaker: Always configured, not user-adjustable.

Mains Breaker: Configured or NOT Configured.

Mains Fail Transfer: Enable or Disable. This setting does not apply when generator frequency is

400Hz.

Mains Fail Transfer Delay: Adjustable from 1 to 300 s in 1 s increments.

Mains Fail Return Delay: Adjustable from 0 to 1,800 s in 1 s increments.

Mains Fail Max Transfer Time: Adjustable from 10 to 120 s in 1 s increments.

Contact Type: Continuous or Pulse.

Open Pulse Time: Adjustable from 0.01 to 0.80 s in 0.01 s increments.

Close Pulse Time: Adjustable from 0.01 to 0.80 s in 0.01 s increments.

Breaker Closing Time: Adjustable from 0 to 800 ms in 5 ms increments.

Breaker Close Wait Time: Adjustable from 0.1 to 600 s in 0.1 s increments.

Bus Condition Detection

DGC-2020 detection of dead bus voltages (for dead bus breaker closure) is controlled by a Dead Bus Threshold setting

and a Dead Bus Time Delay settingB. A dead bus is recognized when the voltage

decreases below the threshold setting for the duration of the time delay setting. Before the DGC-2020 initiates a breaker closure, the generator and mains voltages must be stable. The

DGC-2020 uses several settings to determine voltage stability. These settings include pickup and dropout levels for overvoltage

, undervoltageD, overfrequencyE, and underfrequencyF. Recognition of bus stability is further controlled by two timers. Voltage conditions must meet the stability pickup and dropout settings for the duration of the Bus Stable Time Delay. Breaker closure is not considered if the voltage conditions do not meet the stability pickup and dropout settings for the duration of the Bus Failed Time Delay setting.

NOTE

Voltage threshold and pickup settings on the Bus Condition Detection screen are entered in primary values (generator side of VT).

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-29

NOTE

If the generator frequency is 400 Hz, the settings on the Bus Condition Detection screen do NOT apply. In this case, BESTCOMSPlus will not allow these settings to be changed.

Figure 4-28. BESTCOMSPlus Bus Condition Detection Settings

Dead Bus Threshold: Adjustable from 0 to 4,800 Vac in 1 Vac increments.

Dead Bus Time Delay: Adjustable from 0.1 to 600 s in 0.1 s increments.

Gen and Bus Stable Overvoltage Pickup and Dropout: Adjustable from 10 to 1,200 Vac in 1 Vac

increments.

Gen and Bus Stable Undervoltage Pickup and Dropout: Adjustable from 10 to 12,000 Vac in 1 Vac

increments.

Gen and Bus Stable Overfrequency Pickup and Dropout: Adjustable from 46 to 64 Hz in 0.05 Hz

increments for 50/60 Hz generator frequency (style number x1xxxxxxx).

Gen and Bus Stable Underfrequency Pickup and Dropout: Adjustable from 46 to 64 Hz in 0.05 Hz

increments for 50/60 Hz generator frequency (style number x1xxxxxxx).

Automatic Synchronizer (Optional)

Two methods of generator synchronization are offered: phase lock loop and anticipatory

. In both methods, the DGC-2020 adjusts the frequency and voltage of the generator to match that of the bus (mains) and then connects the generator to the bus by closing the breaker. Anticipatory mode has the added capability of compensating for the breaker closing time (the delay between when a breaker close command is issued and the breaker blades close). The DGC-2020 calculates the advance phase angle that is required to compensate for the breaker closure time by monitoring the frequency difference between the generator and the bus.

Correction Signals

The DGC-2020 adjusts the generator voltage and frequency by issuing voltage correction signals to the generator AVR (automatic voltage regulator) and speed correction signals to the generator governor. Correction signals are issued in the form of DGC-2020 output contact closures. These correction signals can be either continuous or proportional and intervals

. Initially, long pulses are issued when the voltage and frequency differences are large. As

. Proportional correction uses control pulses of varying widthsC

the correction pulses take effect and the voltage and frequency differences become smaller, the correction pulse widths are proportionally decreased. Proportional correction pulses are beneficial in applications where fixed correction pulses can result in overshooting the slip frequency and regulation offset targets.

4-30 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Frequency Correction

Generator frequency correction is defined by the slip frequency setting and further refined by the breaker closing angle setting. The slip frequency setting generator speed (frequency) from the bus frequency. To minimize the impact on the bus during synchronization, the Fgen>Fbus setting

can be enabled to force the generator frequency to exceed the bus frequency at the moment of breaker closure. If this is the case, the DGC-2020 will drive the generator frequency higher than the bus frequency before closing the breaker. The breaker closing angle setting

establishes the maximum allowable deviation of the

defines the maximum allowable phase angle difference between the generator and the bus. For breaker closure to be considered, the slip angle must remain below this setting for the duration of the sync activation delay setting

Voltage Correction

Generator voltage correction is defined by the regulation offset setting percentage of the bus voltage, determines the band of generator voltage surrounding the bus voltage when breaker closure will be considered. If the Vgen>Vbus setting

. This setting, expressed as a

is enabled, the DGC-2020 will drive the generator voltage to be greater than the bus voltage by an amount equal to the regulation offset setting divided by two.

Synchronization Failure

The maximum desired duration for synchronizing to take place is established by the sync fail activation delay setting

. If synchronization (breaker closure) fails to occur within this time setting, generator synchronization will be aborted and a failure will be annunciated. Note that if either bus goes unstable, the synchronizer timers are reset.

NOTE

If the generator frequency is 400 Hz, the settings on the Synchronizer screen do NOT apply. In this case, BESTCOMSPlus will not allow these settings to be changed.

Figure 4-29. BESTCOMSPlus Synchronizer Settings

Sync Type: Phase Lock Loop or Anticipatory.

Contact Type: Continuous or Proportional.

Correction Pulse Width: Adjustable from 0 to 99.9 s in 0.1 s increments.

Correction Pulse Interval: Adjustable from 0 to 99.9 s in 0.1 s increments.

Slip Frequency: Adjustable from 0.05 to 0.5 Hz in 0.05 Hz increments.

Fgen>Fbus: Enable or Disable.

Breaker Closing Angle: Adjustable from 3 to 20° in 1 ° increments.

Sync Activation Delay: Adjustable from 0.1 to 0.8 seconds in 0.1s increments.

Regulation Offset: Adjustable from 2 to 15% of nominal generator voltage in 0.5% increments.

Vgen>Vbus: Enable or Disable.

Sync Fail Activation Delay: Adjustable from 0.1 to 600 in 0.1 s increments.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-31

PROGRAMMABLE SENDERS

The sender inputs of the DGC-2020 can be customized to obtain maximum accuracy from the coolant temperature, oil pressure, and fuel level senders.

The characteristic curve of each sender input can be configured with up to 11 points assigned a resistance input value and a corresponding temperature (coolant temperature sender), pressure (oil pressure sender), or percentage (fuel level sender) value. A sender slope setting automatically orders the values in the resistance column according to whether the sender requires a negative or positive slope. Sender curve points are automatically plotted on a curve which can be printed

Sender curve points configured in BESTCOMSPlus can be saved in the configuration file all three senders is automatically saved with the DGC-2020 configuration file.

Any changes made in BESTCOMSPlus to the sender points, can be reverted to the factory-default

values

. A new settings file can also be createdG.

BESTCOMSPlus programmable sender settings (DGC-2020, Programmable Senders, Coolant Temperature, Oil Pressure, or Percent Fuel Level) are illustrated in

Figure 4-30. (The contents and layout of each BESTCOMSPlus programmable sender screen is identical; only the coolant temperature sender screen is illustrated here.)

. Each point can be

in BESTCOMSPlus,

. The data for

Figure 4-30. BESTCOMSPlus Programmable Senders Settings

Sender Points: Accepts up to 11 user-defined sender resistance points.

Sender Slope: Positive or Negative causes sender points to be sorted and displayed accordingly.

Sender Point Curve: Automatic plot of sender points data.

Print This Graph: Click to print sender point curve.

Save Cool. Data File: Click to save file containing sender point data.

Load Cool. Settings File: Click to clear all user-defined sender data and revert to the factory-default

values.

Create Cool. Settings File: Click to create a new settings file by entering sender point data.

BESTlogic+ PROGRAMMABLE LOGIC

BESTlogic+ Programmable Logic is used to set all logic functions in the DGC-2020. For detailed information on using BESTlogic+, refer to Section 5, BESTlogic+ Programmable Logic.

4-32 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Logic Timers

Refer to Section 5, BESTlogic+ Programmable Logic, for information on using logic timers.

FILE MANAGEMENT

These paragraphs describe file management of settings files, firmware files, and language module files.

Settings Files

These paragraphs describe the tasks of opening, uploading, downloading, saving, printing, and comparing of settings files. When opening, uploading, downloading, or saving a settings file, operational settings, as well as BESTlogic+ settings are combined together as a whole. When printing a settings file, only the operational settings are shown. There is a separate print option available on the BESTlogic+ Programmable Logic screen for printing BESTlogic+ settings. For information on solely uploading or downloading BESTlogic+ settings, refer to Section 5, BESTlogic+ Programmable Logic.

Opening a Settings File To open a new instance of a settings file into BESTCOMSPlus, pull down the F

Open. The Open dialog box appears. This dialog box allows you to use normal Windows

ile menu and choose

techniques to select the file that you want to open. Select the file and open it and the file settings have been brought into a new instance in BESTCOMSPlus. You may also open a file, by clicking on the Open File icon on the lower menu bar. When done in this manner, you will be asked to upload the settings and logic from the file to the current device. You may choose Yes or No. The settings in the current instance will be overwritten.

Uploading a Settings File

To upload a settings file to the DGC-2020, you must first open the file through BESTCOMSPlus or create the file using BESTCOMSPlus. Then pull down the C

ommunication menu and select Upload Settings. You are prompted to enter the password. If the password is correct, the upload begins and the progress bar is shown.

Downloading a Settings File To download a settings file from the DGC-2020, you must pull down the C

ommunication menu and select

Download Settings. If the settings in your BESTCOMSPlus have changed, a dialog box will open asking

you if want to save the current settings changes. You may choose Yes or No. After you have taken the required action to save or not save the current settings, the downloading is executed.

Saving a Settings File

Select Save or Save As from the File pull-down menu. A dialog box pops up allowing you to enter a filename and location to save. Select the Save button to complete the save.

Printing a Settings File To view a preview of the printout, select Print Preview from the F

ile pull-down menu. If you wish to print to

a printer, select the printer icon in the upper left corner of the Print Preview screen. You may skip the print preview and go directly to print by pulling down the F

A dialog box, Print opens with the typical Windows

choice to setup the properties of printer. Execute this

ile menu and selecting Print.

command, as necessary, and then select Print.

Comparing Settings Files

BESTCOMSPlus has the ability to compare two different settings files. To use this feature, pull down the

ools menu and select Compare Settings Files. The BESTCOMSPlus Settings Compare Setup dialog

box appears (

Figure 4-31). Select the location of the first file to compare under Left Settings Source and select the location of the second file to compare under Right Settings Source. If you are comparing a settings file located on your PC hard drive or portable media, click the folder button and navigate to the file. If you want to compare settings downloaded from a unit, click the Select Unit button to set up the communication port. Click the Compare button to compare the selected settings files.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-33

Figure 4-31. Settings Compare Setup

A dialog box will appear and notify you if any differences were found. The BESTCOMSPlus Settings Compare dialog box (

Figure 4-32) is displayed where you can view all settings (Show All Settings), view

only the differences (Show Settings Differences), view all logic (Show All Logic Paths), or view only logic differences (Show Logic Path Differences). Select Close when finished.

Figure 4-32. Settings Compare View

Uploading Firmware Files

Embedded firmware is the operating program that controls the actions of the DGC-2020. The DGC-2020 stores firmware in nonvolatile flash memory that can be reprogrammed through the communication ports. It is not necessary to replace EPROM chips when updating the firmware with a newer version.

Future enhancements to the DGC-2020 functionality may make a firmware update desirable. Because default settings are loaded when DGC-2020 firmware is updated, your settings should be saved in a file prior to upgrading firmware.

4-34 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Uploading a Firmware File to Device

If you have obtained an updated firmware file for your device, you may upload it by performing the following steps:

1. Place the DGC-2020 in Off mode. This can be accomplished by clicking the Off button on the Control screen inside the Metering Explorer or by pressing the Off button on the DGC-2020 front panel.

2. Select Upload Firmware to Device from the C

ommunication pull-down menu.

3. You will be asked to save the current settings file. Select Yes or No.

4. Select the communication port. Firmware updating is only possible locally through the USB port. Refer to

Figure 4-33.

Figure 4-33. DGC-2020 Selection Screen

CAUTION

If power is lost or communication is interrupted during file transfer, the DGC-2020 will cease operating and will not recover.

5. Use normal Windows Basler Electric and click on the Send File button. Refer to

techniques to browse for the updated firmware file that was obtained from

Figure 4-34.

Figure 4-34. Upload Firmware Screen

Uploading Language Modules

The language of the front panel LCD can be changed by uploading a different language module into the DGC-2020. The DGC-2020 is capable of storing two language modules in nonvolatile flash memory that can be reprogrammed through the communication ports. The active language module being used for the front panel LCD is selected on the Front Panel HMI setting screen. To access this screen, use the Settings Explorer within BESTCOMSPlus to open the General Settings branch and select the Front Panel HMI screen.

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-35

Uploading a Language Module to Device

If you have obtained a language module file for your device, you may upload it by performing the following steps:

1. Select Upload Language Module to Device from the C

ommunication pull-down menu.

2. When the Language Module Upload Manager screen appears, use normal Windows to browse for the language module file that was obtained from Basler Electric.

3. Select the language to upload. (This will overwrite the language module selected.)

4. Click on the Send Language Module button. Refer to

Figure 4-35.

Figure 4-35. Language Module Upload Manager Screen

techniques

METERING EXPLORER

The Metering Explorer is a convenient tool within BESTCOMSPlus used to navigate through the following metering screens of the DGC-2020 plug-in.

• Engine

• Generator

• Power

• Run Statistics

• Status

• Inputs

• Outputs

• Alarms

• Event Log

• J1939 ECU

o ECU Data o Engine Configuration o Active DTC o Previously Active DTC

• MTU MDEC

o MDEC Alarms o MDEC Fault Codes

• Summary

• Control

• Real Time Clock

The Metering Explorer has a “Docking” feature allowing the user to arrange and dock metering screens. A blue transparent square representing the screen being moved, seven arrow buttons, and a tabs button appear when holding down the left mouse button on a metering tab and dragging it out. See Table 4-2 explains the call-outs on

Figure 4-36.

4-36 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

09-20-06

P0042-15

Figure 4-36. Docking Options

Table 4-2. Explanation of Call-Outs on

Figure 4-36

Call-

Out

Symbol Explanation

Holding the left mouse button down on a metering tab and dragging it to one of the four arrow boxes will place it inside the selected window on the location selected. To place the metering tab as a tab inside the selected window, drop it on the tabs button in the center of the arrow buttons.

Holding the left mouse button down on a metering tab and dragging it to this arrow box will place it across the top of the screen. Click on the to dock it on the top bar. To display a screen that is docked, simply use the

(thumbtack)

mouse to hover the pointer over the tab on the top bar. Holding the left mouse button down on a metering tab and dragging it to this

arrow box will place it across the side of the screen. Click on the to dock it on the side bar. To display a screen that is docked, simply use the

(thumbtack)

mouse to hover the pointer over the tab on the side bar. Holding the left mouse button down on a metering tab and dragging it to this

arrow box will place it across the bottom of the screen. Click on the (thumbtack) to dock it on the bottom bar. To display a screen that is docked, simply use the mouse to hover the pointer over the tab on the bottom bar.

Holding the left mouse button down on a metering tab and dragging it to anywhere other than an arrow box will place it as a floating metering screen. This floating screen can later be closed by clicking on the corner. It may also be dragged to one of the arrow boxes used for docking.

in the upper right

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-37

Engine

This screen provides information and metering of engine components. Refer to

Figure 4-37. Metering, Engine

Generator

This screen provides metering of generator voltages and currents. Refer to

Figure 4-38.

Figure 4-37.

Figure 4-38. Metering, Generator

Power

This screen provides metering of generator power and power factor. Refer to

Figure 4-39.

Figure 4-39. Metering, Power

4-38 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Run Statistics

This screen provides Cumulative Run Statistics, Session Run Statistics, and Commission Date. Refer to Figure 4-40. The maintenance interval can be reset through this screen.

Figure 4-40. Metering, Run Statistics

Status

This screen indicates status of breakers, modes, and switches. A green LED indicates that the status is TRUE. Refer to

Figure 4-41.

Figure 4-41. Metering, Status

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-39

Inputs

This screen indicates the status of local inputs. A red LED indicates that the status is TRUE. Refer to Figure 4-42.

Figure 4-42. Metering, Inputs

Outputs

This screen indicates the status of local outputs. A red LED indicates that the status is TRUE. Refer to Figure 4-43.

Figure 4-43. Metering, Outputs

4-40 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Alarms

This screen indicates the status of Alarms, Pre-Alarms, Sender Fail, and Generator Protection. A green LED indicates that the status is TRUE. Alarms and pre-alarms are reset when the DGC-2020 is set to the Off mode. The Sync Fail at Gen Breaker, Gen Breaker Fail to Open, Gen Breaker Fail to Close, Sync Fail at Mains Breaker, Mains Breaker Fail to Open, and Mains Breaker Fail to Close pre-alarms can be reset by pressing the Reset key on the front panel HMI. Refer to

Figure 4-44.

Figure 4-44. Metering, Alarms

Event Log

The event log provides a historical record of events detected by the DGC-2020. The user can download data into BESTCOMSPlus and then save event logs as files. The Clear button gives the user the option of clearing select or all event logs. Refer to

Figure 4-45.

Figure 4-45. Metering, Event Log

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-41

J1939 ECU

The ECU reports operating information to the DGC-2020 through the CAN interface when the ECU is configured for Volvo Penta. Operating parameters and diagnostic information, if supported by the ECU, are decoded and displayed on these screens.

ECU Data

This screen displays ECU Lamp Status and ECU Data. Refer to

Figure 4-46. Metering, ECU Data

Figure 4-46

Engine Configuration

This screen displays Engine Configuration. Refer to

Figure 4-47.

Figure 4-47. Metering, Engine Configuration

4-42 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Active DTC and Previously Active DTC

This screen is used for viewing, downloading, and clearing DTC (Diagnostic Trouble Codes). Refer to Figure 4-48.

Figure 4-48. Metering, Download DTC

MTU MDEC

The MTU MDEC reports operating information to the DGC-2020 through the CAN interface when the ECU is configured for MTU MDEC. Operating parameters and diagnostic information, if supported by the MTU MDEC, are decoded and displayed on these screens.

MDEC Alarms

MDEC Pre-Alarms and MDEC Alarms are reported on this screen. Refer to

Figure 4-49. Metering, MDEC Alarms

Figure 4-49.

MDEC Fault Codes

MDEC Fault Codes can be viewed and downloaded on this screen. Refer to

Figure 4-50.

Figure 4-50. Metering, MDEC Fault Codes

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-43

Summary

This screen displays a metering summary. Refer to

Figure 4-51. Metering, Summary

Figure 4-51.

4-44 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

Control

Controls for stopping/starting the engine, controls for opening/closing breakers, and controls for opening/closing switches are accessed through the Control branch.

The following controls are available by using the Metering Explorer in BESTCOMSPlus to open the Control branch. Refer to

Figure 4-52.

1. The user has control to stop the generator in case of emergency by clicking on the Emergency Stop button.

2. The engine can be started and stopped by clicking on the Start and Stop buttons.

3. The engine can be set to Run, Auto, or Off.

4. There are controls for opening and closing the generator breaker and mains breaker. A green LED indicates that the breaker is open. A red LED indicates that the breaker is closed

5. Switches 1 through 4 can be opened or closed by clicking on the Open or Close buttons. A red LED indicates that a switch is closed.

When running BESTCOMSPlus in Live mode, these buttons will interact with the DGC-2020 in real time.

Figure 4-52. Metering, Control

Real Time Clock

Settings for Date, Time, and Daylight Savings Time are made here. Refer to

Figure 4-53.

Figure 4-53. Metering, Real Time Clock

9400200990 Rev B DGC-2020 BESTCOMSPlus Software 4-45

UPDATING BESTCOMSPlus SOFTWARE

Future enhancements to DGC-2020 functionality may make firmware updates desirable. Enhancements to DGC-2020 firmware typically coincide with enhancements to the DGC-2020 plug-in for BESTCOMSPlus. When a DGC-2020 is updated with the latest version of firmware, the latest version of the DGC-2020 plug-in for BESTCOMSPlus should also be obtained.

If you obtained a CD-ROM containing firmware from Basler Electric, then that CD-ROM will also contain the corresponding version of the DGC-2020 plug-in with BESTCOMSPlus software. The DGC-2020 plugin with BESTCOMSPlus can also be downloaded from the Basler Electric web site

http://www.basler.com). An outline form can be completed to obtain a password for downloading the

( software from the Basler Electric web site. BESTCOMSPlus also has a built in tool that will check for program updates if you are connected to the World Wide Web. The Check for Updates tool is located in

ools drop-down menu.

the T

4-46 DGC-2020 BESTCOMSPlus Software 9400200990 Rev B

SECTION 5 • BESTlogic+ PROGRAMMABLE

LOGIC

TABLE OF CONTENTS

SECTION 5 • BESTlogic+ PROGRAMMABLE LOGIC............................................................................. 5-1

INTRODUCTION....................................................................................................................................5-1

OVERVIEW OF BESTlogic+.................................................................................................................. 5-1

BESTlogic+ Composition ................................................................................................................... 5-2

I/O...................................................................................................................................................5-2

Components ................................................................................................................................... 5-4

Elements.........................................................................................................................................5-5

LOGIC SCHEMES................................................................................................................................. 5-7

The Active Logic Scheme...................................................................................................................5-7

Copying and Renaming Preprogrammed Logic Schemes.................................................................5-7

Sending and Retrieving Logic Schemes............................................................................................5-8

Retrieving a Logic Scheme from the DGC-2020............................................................................ 5-8

Sending a Logic Scheme to the DGC-2020 ................................................................................... 5-8

PROGRAMMING BESTlogic+............................................................................................................... 5-8

I/O.......................................................................................................................................................5-8

Input Objects................................................................................................................................... 5-8

Output Objects................................................................................................................................5-9

Alarms............................................................................................................................................. 5-9

Pre-Alarms......................................................................................................................................5-9

Senders...........................................................................................................................................5-9

Components.......................................................................................................................................5-9

Logic Gates..................................................................................................................................... 5-9

Latches ........................................................................................................................................... 5-9

Pickup and Dropout Timers............................................................................................................ 5-9

Logic Comment Block..................................................................................................................... 5-9

Elements...........................................................................................................................................5-10

Protective Elements......................................................................................................................5-10

Control Elements.......................................................................................................................... 5-10

Other.............................................................................................................................................5-10

BESTlogic+ FILE MANAGEMENT.......................................................................................................5-10

Saving a BESTlogic+ Programmable Logic File........................................................................... 5-10

Opening a BESTlogic+ File ..........................................................................................................5-10

Uploading a BESTlogic+ File........................................................................................................5-10

Downloading a BESTlogic+ File................................................................................................... 5-10

Printing a BESTlogic+ File............................................................................................................5-10

Clearing the On-Screen Logic Diagram........................................................................................5-11

BESTlogic+ EXAMPLES...................................................................................................................... 5-11

Example 1 - AVR Logic Block Connections.....................................................................................5-11

Example 2 - AND Gate Connections................................................................................................ 5-11

Example 3 - Multiple Logic Connections.......................................................................................... 5-11

Figures

Figure 5-1. BESTlogic+ Programmable Logic Tree Branch......................................................................5-1

Figure 5-2. Example of Logic Timers.........................................................................................................5-9

Figure 5-3. Logic Comment Block...........................................................................................................5-10

Figure 5-4. BESTlogic+ Programmable Logic Toolbar............................................................................5-10

Figure 5-5. Example 1 - AVR Logic Block Connections..........................................................................5-11

Figure 5-6. Example 2 - AND Gate Connections .................................................................................... 5-11

Figure 5-7. Example 3 - Multiple Logic Connections............................................................................... 5-12

9400200990 Rev B DGC-2020 BESTlogic+ Programmable Logic i

Tables

Table 5-1. I/O Group, Names and Descriptions........................................................................................5-2

Table 5-2. Components Group, Names and Descriptions.........................................................................5-4

Table 5-3. Elements Group, Names and Descriptions.............................................................................. 5-5

Table 5-4. Status LEDs .............................................................................................................................5-8

ii DGC-2020 BESTlogic+ Programmable Logic 9400200990 Rev B

SECTION 5 • BESTlogic+ PROGRAMMABLE

LOGIC

INTRODUCTION

BESTlogic+ Programmable Logic is a programming method used for managing the input, output, protection, control, monitoring, and reporting capabilities of Basler Electric's DGC-2020 Digital Genset Controller. Each DGC-2020 has multiple, self-contained logic blocks that have all of the inputs and outputs of its discrete component counterpart. Each independent logic block interacts with control inputs and hardware outputs based on logic variables defined in equation form with BESTlogic+. BESTlogic+ equations entered and saved in the DGC-2020 system's nonvolatile memory integrate (electronically wire) the selected or enabled protection and control blocks with control inputs and hardware outputs. A group of logic equations defining the logic of the DGC-2020 is called a logic scheme.

One default active logic scheme is pre-loaded into the DGC-2020. This scheme is configured for a typical protection and control application and virtually eliminates the need for "start-from-scratch" programming. BESTCOMSPlus can be used to open a logic scheme that was previously saved as a file and upload it to the DGC-2020. The default logic scheme can also be customized to suit your application. Detailed information about logic schemes is provided later in this section.

BESTlogic+ is not used to define the operating settings (modes, pickup thresholds, and time delays) of the individual protection and control functions. Operating settings and logic settings are interdependent but separately programmed functions. Changing logic settings is similar to rewiring a panel and is separate and distinct from making the operating settings that control the pickup thresholds and time delays of a DGC-2020. Detailed information about operating settings is provided in Section 3, Functional Description.

OVERVIEW OF BESTlogic+

BESTlogic+ settings are made through BESTCOMSPlus. Use the Settings Explorer to open the BESTlogic+ Programmable Logic tree branch as shown in Figure 5-1.

The BESTlogic+ Programmable Logic screen contains a Logic Library for opening and saving logic scheme files, tools for printing and editing, and three groups of objects used for program m ing.

Figure 5-1. BESTlogic+ Programmable Logic Tree Branch

9400200990 Rev B DGC-2020 BESTlogic+ Programmable Logic 5-1

BESTlogic+ Composition

There are three main groups of objects used for programming BESTlogic+. These groups are I/O, Components, and Elements. For details on how these objects are used to program BESTlogic+, see the paragraphs on Programming BESTlogic+.

I/O

This group contains Input Objects, Output Objects, Alarms, Pre-Alarms, and Senders. Table 5-1 lists the names and descriptions of the objects in the I/O group.

Table 5-1. I/O Group, Names and Descriptions

Name Description Symbol

Input Objects

Logic 0 Sends out a Fixed 0 (Low).

Logic 1 Sends out a Fixed 1 (High).

Physical Inputs

IN1 - IN16

Remote Inputs

Inx_RMx

Virtual Inputs

VIN1 - VIN4

Status Input

Audible Horn

Status Input

Auto Mode

Status Input

Off Mode

Status Input

Run Mode

Connect to an input of another logic block.

Connect to an input of another logic block. (Available only when a remote I/O module is connected.)

Connect to an input of another logic block.

Status Input

Cool Down Timer Active

Status Input

Emergency Stop

Status Input

EPS Supplying Load

Status Input

Pre Start Condition in Effect

Status Input

Switch not in Auto

Connect to an input of another logic block.

5-2 DGC-2020 BESTlogic+ Programmable 9400200990 Rev B

Winco DGC-2020 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

CONTENTS

DESCRIPTION

FEATURES

FUNCTIONS

Generator Protection and Metering

Engine Protection and Metering

Event Recording

Auto-Synchronizer

Contact Inputs and Output Contacts

Automatic Transfer Switch Control (Mains Failure)

Communication

USB Port

CANBus Interface

Dial-Out Modem

RS-485 Port

STYLE NUMBER

SPECIFICATIONS

Operating Power

Power Consumption

Battery Ride Through

Current Sensing

1 Aac Current Sensing

5 Aac Current Sensing

Voltage Sensing

Contact Sensing

Terminals

Engine System Inputs

Fuel Level Sensing

Coolant Temperature Sensing

Oil Pressure Sensing

Engine Speed Sensing

Output Contacts

Fuel Solenoid, Engine Crank, and Pre-Start Relays

Programmable Relays (12)

Metering

Generator Voltage (rms)

Generator Current (rms)

Generator Frequency

Apparent Power

Power Factor

Real Power

Oil Pressure

Coolant Temperature

Battery Voltage

Engine RPM

Engine Run Time

Maintenance Timer

Fuel Level

Generator Protection Functions

Overvoltage (59) and Undervoltage (27)

Underfrequency (81U) and Overfrequency (81O)

Overcurrent (51) (Optional)

Phase Imbalance (47) (Optional)

Logic Timers

Communication Interface

RS-485 (Optional)

CANBus

Modem (Optional)

Real-Time Clock

Clock Holdup

Type Tests

Shock

Vibration

Radio Interference

HALT (Highly Accelerated Life Testing)

Ignition System

Environment

Agency Approvals

UL/CSA Approvals

NFPA Compliance Complies with NFPA Standard 110, Standard for Emergency and Standby Power.

CE Compliance

Physical

INTRODUCTION

FRONT PANEL

DISPLAY OPERATION