CRE GENSYS COMPACT MAINS Guide

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Table of contents
Description .................................................................................................................................... 4
Front Face ............................................................................................................................................... 4
Rear Face ................................................................................................................................................ 6
Panel Mounting ......................................................................................................................................... 7
UL Requirements ...................................................................................................................................... 9
Usage ................................................................................................................................................... 11
Password ............................................................................................................................................... 11
LCD ....................................................................................................................................................... 12
Wiring .................................................................................................................................................... 14
Digital Inputs ......................................................................................................................................... 19
Digital Outputs and Output Relays ........................................................................................................... 21
Analog Inputs ......................................................................................................................................... 22
Hysteresis DI ......................................................................................................................................... 27
Hysteresis AI .......................................................................................................................................... 28
Settings ......................................................................................................................................... 29
Engine ................................................................................................................................................... 29
Speed/Voltage Control ............................................................................................................................ 33
Circuit Breakers ...................................................................................................................................... 36
Synchronization ...................................................................................................................................... 40
Load/Unload Ramp ................................................................................................................................. 44
kW/kVAR regulation ................................................................................................................................ 45
Protections ............................................................................................................................................. 46
Events ................................................................................................................................................... 49
Control Loop PID .................................................................................................................................... 50
Advanced Settings ................................................................................................................ 51
Droop .................................................................................................................................................... 51
Static Paralleling ..................................................................................................................................... 52
Load Shedding ........................................................................................................................................ 54
Maintenance Schedule ............................................................................................................................ 56
Synch & Load Share only ......................................................................................................................... 57
Mains application ................................................................................................................. 59
Change-over mode .................................................................................................................................. 59
No break Change-over ............................................................................................................................. 62
Permanent ............................................................................................................................................. 66
Advanced Functions ........................................................................................................... 69
Easy Flex® ............................................................................................................................................ 69
User variables ........................................................................................................................................ 75
Alternative selection ............................................................................................................................... 76
Scheduler ............................................................................................................................................... 78
Modbus TCP Mapping .............................................................................................................................. 80
Logger ................................................................................................................................................... 81
Communications ...................................................................................................................... 82
Network ................................................................................................................................................. 82
Modbus TCP/IP ....................................................................................................................................... 84
CANopen ................................................................................................................................................ 87
SAE J1939 .............................................................................................................................................. 89
J1939 custom frames settings ................................................................................................................. 93
J1939 sniffer ........................................................................................................................................... 96
MTU MDEC ............................................................................................................................................. 97
Modbus client ....................................................................................................................................... 100

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CAN bus Good Practices ........................................................................................................................ 103
Appendices ................................................................................................................................ 105
ECU J1939 ............................................................................................................................................ 105
Short Circuit Protection ......................................................................................................................... 113
Troubleshooting .................................................................................................................................... 120
Standards for Generator ........................................................................................................................ 124
Certifications ........................................................................................................................................ 125
Software Variables ................................................................................................................................ 126

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Description
Front Face
GENSYS COMPACT Mains
PIN Buttons Functions
1 SHIFT button Additional functions.
2 RIGHT button Navigation button (Right).
3 DOWN button Navigation button (Down).
4 LEFT button Navigation button (Left).
5 UP button Navigation button (Up).
6 ENTER button Validating entry / MENU.
7 ESC button Cancel entry / escape MENU.
8 INFO button Allows access to the active faults, active alarms, events history or information
pages.
9(1) Generator circuit breaker button
Can only be used in MAN mode.
Generator circuit breaker control.
Press to Open. Press to Close (synchronization & load transfer will be done
automaticallyif Bus is powered & configuration is setup for paralleling operation).
10(1) Mains circuit breaker button
Can only be used in MAN mode.
Mains circuit breaker control.
Press to Open. Press to Close (synchronization & load transfer will be done
automatically if Bus is powered & configuration is setup for paralleling operation).
11(1) STOP button
Can only be used in MAN mode.
Stop the Generator.
Pressing once this button will set the Generator offload and initiate cooling down
sequence.
12(1) START button Can only be used in MAN mode.
Start the Generator.
13(1) MAN button MAN mode.
The associated LED lights up when the mode is activated.
14(1) TEST button TEST mode.
The associated LED lights up if the mode is activated.

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PIN Buttons Functions
15(1) AUTO button AUTO mode.
The associated LED lights up when the mode is activated.
16 ALARMindicator The LED flashes when an alarm appears.
The LED is lit when an alarm is acknowledged, but not reseted.
17 DEFAULT indicator The LED flashes when a Fault occurs.
The LED is lit when a Fault is acknowledged, but not reseted.
18 LCD display Screen size: 40mm x 70mm; Back-light : typical 50cd/m2, configurable. Type: STN;
64 x128 pixels.
(1) Not available according to controller type.
Note: Pressing the button STOP twice will set the Generator offload and stop the engine without cooling down sequence.
Navigation keys
Keys Navigation mode Edition mode
Scrolling menus/parameters Modifying parameters values once selected: When up/down
keys are used to modify values, holding the key will
accelerate the entry scrolling.
Right arrow:
- Accessing a menu.
- Navigating right in display/parameters pages
Left arrow:
- Return to previous menu.
- Navigating left in display/parameters pages.
NA
+ will increase/decrease the
brightness of the LCD display.
+ will increase/decrease the contrast
of the LCD display.
In MAN mode, when the Generator is offload, use
to increase/decrease:
§The speed when the "Speed governor control" page is
displayed.
§The voltage when the "AVR control" page is displayed.
Note: Available only on GENSYS COMPACT PRIME and
GENSYS COMPACT MAINS.
Return to previous menu. Cancel setting and return to Navigation mode.
Accessing a menu / Switching to Edition mode. Validation of the modified parameter and return to
Navigation mode.
Button inhibition
To inhibit front panel buttons, use the i4Gen Suite Software/Controller settings/System/Button inhibition page.
This page shows the list of front panel buttons, tick the corresponding box to inhibit actions on the button.
It is also possible to inhibit the buttons by Modbus by modifying the variable 3557. Each bit of the variable
corresponds to a button. To know the bit associated to each button, please refer to the image above. Ex : Bit number
6 will inhibit the "Enter" button, bit number 1 will inhibit the "Shift" button.
External button requests
It is possible to remotely activate button actions by Modbus TCP, for a remote manual control for example.
If a button action is controlled by Modbus TCP, the last request received (external or from the front panel) is treated
in priority and cancel the previous request.
MAN / AUTO: If the 2 modes are requested, the MAN mode request cancels the AUTO mode one.
The buttons on the front panel can be replaced by external commands via digital inputs.

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Rear Face
GENSYS COMPACT Mains
Simplified Wiring Diagram

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Panel Mounting
The unit is designed for panel mounting, which provides user with access only to the front panel.
WARNING
THE UNIT IS NOT GROUNDED
·Take all measures against Electronic Static Discharges.
·Do not try to open the unit.
Failure to follow these instructions may damage the unit.
Environmental requirements:
·Operating temperature: -20…70°C (-4...158°F); LCD display slows down a bit under -5°C (23°F). Avoid direct
exposure to the sun.
·Storage temperature: -40...70°C (-40...158°F).
·Altitude: ≤ 4000m (13123ft) for a maxAC voltage of 480VAC; ≤ 5000m (16404ft) for a maxAC voltage of
400VAC.
Unpacking
Make sure the packaging contains:
·The unit.
·6 connectors.
·1 fixing kit composed of 2 parts.
·4 screws.
·A delivery bill.
Unpack and keep the packaging in case of return.
Make sure the unit does not show scratches or visible defaults. Otherwise describe them on the RMA sheet
(available on CRE TECHNOLOGY website) and return it with the product to your distributor.

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Installation
Preparation
·Torque of mounting brackets: 0.4Nm.
·Cut out the panel to 220x160mm (8.7x6.3in) minimum.
·Make sure the cut-out is smooth and clean.
Mounting
0 Tool : cross-heas screwdriver size 1
1 Pass the unit through the mounting surface
2 In the rear, cover each of the four spacers
using the 2 parts of the fixing kit.
3 Screw a first corner against the mounting
surface
4 Repeat on the diagonally opposite spacer
5 Repeat on the other diagonal and tighten
equally (do not overtighten)

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UL Requirements
Skip this chapter if your application does not require to follow the UL specification.
Circuit separation
The communication, sensor, and/or battery derived circuit conductors shall be separated and secured to maintain at
least 1/4” (6mm) separation from the Generator and the Mains connected circuit conductors unless all conductors
are rated 600V or greater.
Other circuits ratings
For information on circuits ratings, see chapter Wiring.
Mains Ratings
Over-voltage Category
III, 300VAC system voltage.
Sensing Generator / Mains Voltage Measurement (J4)
300VAC max P-N, 2 phases; 500VAC P-P 3 phases, 35...75Hz.
Current Inputs (J5)
Must be connected through listed or recognized isolating current transformers with secondary rating of 5A max
50/60Hz. (XODW2.8) Instrument transformers (according to IEEE C57.13 series or the equivalent).
Communication Circuits
Must be connected to communication circuits of UL Listed equipment.
Output Pilot Duty (J3)
250VAC, 5A max general purpose, 240VAC, 1/4HP for NO contact, 1/6HP for NC contact Pilot duty: C150, C300.
Digital outputs (J1)
FET: Fuel shutoff: 63VA, 1.8A maxcurrent.
Overcurrent protection (DC supply and L1, L2, L3, N)
Installer shall protect DC supply and L1, L2, L3, N by fuse Type: R/C (JDYX2/7), or R/C (JDYX2) and CSA
Certified Class 1422-30.
Rating of fuses:
·DC supply to be protected by 5A, 40VDC max.
·L1, L2, L3, N, fuse protection 100mA/600VAC max.
Terminals Wiring
Terminal (screw type):
·Tightening Torque: 3.5lb.in (0.4Nm).
Wires :
·28-14 AWG, Cu, 75°C min.
Conductor protection must be provided in accordance with NFPA 70, Article 240.
Low voltage circuits (35VDC or less) must be supplied from the engine starting battery or an isolated secondary
circuit.
Environment
Device must be installed in an unventilated or filtered ventilation enclosure to maintain a pollution degree 2
environment.
Maximum surrounding air temperature rating: 45°C.
ADVANCED WIRING DIAGRAM
Wiring diagrams available on the website CRE TECHNOLOGY : GENSYS COMPACT MAINS HMI _ CORE -

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Standard wiring schematics
Installation
For information on installing the product, see chapter Panel Mounting.