CGC 400 DRH 4189340786 UK

DEIF A/S Frisenborgvej 33 DK-7800 Skive Tel.: +45 9614 9614 Fax: +45 9614 9615 [email protected] www.deif.com



DESIGNER'S REFERENCE HANDBOOK

Compact Genset Controller, CGC 400 General product information Functional description Additional functions Protections

Document no.: 4189340786BSW version: 1.00

1. General information1.1. Warnings, legal information and safety..................................................................................................5

1.1.1. Warnings and notes ......................................................................................................................51.1.2. Legal information and disclaimer ..................................................................................................51.1.3. Safety issues ................................................................................................................................51.1.4. Electrostatic discharge awareness ...............................................................................................51.1.5. Factory settings ............................................................................................................................6

1.2. About the designer's reference handbook..............................................................................................61.2.1. General purpose ...........................................................................................................................61.2.2. Intended users ..............................................................................................................................61.2.3. Contents and overall structure ......................................................................................................6

2. General product information2.1. Introduction.............................................................................................................................................7

2.1.1. Introduction....................................................................................................................................72.2. Type of product......................................................................................................................................72.3. Options...................................................................................................................................................7

2.3.1. Options .........................................................................................................................................72.4. PC utility software warning.....................................................................................................................7

2.4.1. PC USW warning ..........................................................................................................................7

3. Passwords3.1. Passwords and parameter access.........................................................................................................8

3.1.1. Password.......................................................................................................................................83.1.2. Parameter access..........................................................................................................................9

4. Functional descriptions4.1. Standard functions...............................................................................................................................10

4.1.1. Standard functions ......................................................................................................................104.1.2. Operation modes.........................................................................................................................104.1.3. Engine control..............................................................................................................................104.1.4. Generator protection (ANSI) .......................................................................................................104.1.5. Busbar protection (ANSI) ............................................................................................................114.1.6. Display.........................................................................................................................................114.1.7. M-Logic........................................................................................................................................11

4.2. Terminal strip overview........................................................................................................................114.2.1. Reference to Installation Instructions...........................................................................................11

4.3. Measurement systems.........................................................................................................................114.3.1. Single phase system....................................................................................................................114.3.2. Split phase system.......................................................................................................................124.3.3. Three-phase system....................................................................................................................12

4.4. Applications..........................................................................................................................................134.4.1. Applications and genset modes...................................................................................................134.4.2. Application design........................................................................................................................134.4.3. AMF (no back synchronisation)...................................................................................................154.4.4. Island operation...........................................................................................................................164.4.5. Load takeover..............................................................................................................................16

4.5. Running mode description....................................................................................................................164.5.1. Manual mode...............................................................................................................................164.5.2. Test mode....................................................................................................................................174.5.3. Simple test...................................................................................................................................174.5.4. Full test........................................................................................................................................174.5.5. Block mode..................................................................................................................................18

4.6. Single-line diagrams.............................................................................................................................184.6.1. Application illustration .................................................................................................................184.6.2. Automatic Mains Failure..............................................................................................................194.6.3. Island operation...........................................................................................................................194.6.4. Load takeover..............................................................................................................................20

CGC 400 DRH 4189340786 UK

DEIF A/S Page 2 of 96

4.7. Flowcharts............................................................................................................................................204.7.1. Flowcharts...................................................................................................................................204.7.2. Mode shift....................................................................................................................................214.7.3. MB open sequence......................................................................................................................224.7.4. GB open sequence......................................................................................................................234.7.5. Stop sequence.............................................................................................................................244.7.6. Start sequence.............................................................................................................................254.7.7. MB close sequence.....................................................................................................................264.7.8. GB close sequence......................................................................................................................274.7.9. Load takeover..............................................................................................................................284.7.10. Island operation.........................................................................................................................294.7.11. Automatic Mains Failure, AMF...................................................................................................304.7.12. Test sequence...........................................................................................................................31

4.8. Sequences...........................................................................................................................................324.8.1. Sequences...................................................................................................................................324.8.2. Start sequence.............................................................................................................................334.8.3. Start sequence conditions...........................................................................................................344.8.4. Running feedback........................................................................................................................354.8.5. Stop sequence.............................................................................................................................384.8.6. Breaker sequences......................................................................................................................404.8.7. AMF timers..................................................................................................................................40

5. Display and menu structure5.1. Reference to operator's manual...........................................................................................................43

6. Engine communication6.1. Reference to H5 manual......................................................................................................................44

6.1.1. Engine communication ...............................................................................................................44

7. Additional functions7.1. Start functions......................................................................................................................................45

7.1.1. Start functions..............................................................................................................................457.1.2. Digital feedbacks.........................................................................................................................457.1.3. Analogue tacho feedback............................................................................................................467.1.4. Oil pressure.................................................................................................................................47

7.2. Phase sequence error..........................................................................................................................497.2.1. Description of phase sequence error ..........................................................................................49

7.3. Breaker types.......................................................................................................................................497.3.1. Breaker types...............................................................................................................................49

7.4. Breaker spring load time......................................................................................................................497.4.1. Principle.......................................................................................................................................50

7.5. Alarm inhibit..........................................................................................................................................517.5.1. Run status (6160)........................................................................................................................53

7.6. Access lock..........................................................................................................................................547.7. Digital mains breaker control................................................................................................................567.8. Command timers..................................................................................................................................577.9. Running output.....................................................................................................................................587.10. Idle running.........................................................................................................................................59

7.10.1. Idle running................................................................................................................................597.10.2. Description.................................................................................................................................597.10.3. Examples...................................................................................................................................607.10.4. Inhibit.........................................................................................................................................617.10.5. Running signal...........................................................................................................................617.10.6. Idle speed flowcharts.................................................................................................................617.10.7. Start...........................................................................................................................................627.10.8. Stop...........................................................................................................................................63

7.11. Engine heater.....................................................................................................................................637.11.1. Engine heater alarm..................................................................................................................64

7.12. Ventilation...........................................................................................................................................64

CGC 400 DRH 4189340786 UK


7.12.1. Max. ventilation alarm................................................................................................................657.13. Not in auto..........................................................................................................................................657.14. Fuel pump logic..................................................................................................................................65

7.14.1. Fuel fill check.............................................................................................................................667.15. Fail class............................................................................................................................................67

7.15.1. Fail class....................................................................................................................................677.15.2. Engine running...........................................................................................................................677.15.3. Engine stopped..........................................................................................................................687.15.4. Fail class configuration..............................................................................................................68

7.16. Service timers.....................................................................................................................................697.17. Wire fail detection...............................................................................................................................707.18. Digital inputs.......................................................................................................................................71

7.18.1. Functional description................................................................................................................727.19. Outputs...............................................................................................................................................74

7.19.1. Functional description................................................................................................................757.20. Multi-inputs.........................................................................................................................................76

7.20.1. Multi-inputs................................................................................................................................767.20.2. 4-20 mA ....................................................................................................................................777.20.3. Pt100/Pt1000.............................................................................................................................777.20.4. RMI inputs..................................................................................................................................777.20.5. RMI oil........................................................................................................................................777.20.6. RMI water..................................................................................................................................787.20.7. RMI fuel.....................................................................................................................................797.20.8. Illustration of configurable inputs...............................................................................................807.20.9. Configuration.............................................................................................................................817.20.10. Scaling of 4-20 mA inputs........................................................................................................817.20.11. Binary ......................................................................................................................................83

7.21. Input function selection.......................................................................................................................837.22. Language selection............................................................................................................................84

7.22.1. Language selection ...................................................................................................................847.23. Text in status line...............................................................................................................................84

7.23.1. Standard texts............................................................................................................................857.24. Counters.............................................................................................................................................867.25. M-Logic...............................................................................................................................................877.26. Buzzer................................................................................................................................................87

7.26.1. Buzzer .......................................................................................................................................877.27. USW communication..........................................................................................................................87

7.27.1. USW communication ................................................................................................................877.28. Nominal settings.................................................................................................................................88

7.28.1. How to change the nominal settings..........................................................................................887.29. Scaling................................................................................................................................................887.30. Differential measurement...................................................................................................................89

7.30.1. Differential measurement...........................................................................................................897.31. Filename extension............................................................................................................................91

7.31.1. Filename extension ...................................................................................................................917.32. Modbus parameters...........................................................................................................................91

7.32.1. Modbus parameters ..................................................................................................................917.33. Battery low voltage alarm timer..........................................................................................................91

7.33.1. Battery low voltage alarm timer ................................................................................................91

8. Protections8.1. General.................................................................................................................................................93

8.1.1. General........................................................................................................................................938.2. Voltage-dependent (restraint) overcurrent...........................................................................................95

9. Parameter list9.1. Related parameters..............................................................................................................................96

9.1.1. Related parameters ....................................................................................................................96

CGC 400 DRH 4189340786 UK


1. General information1.1 Warnings, legal information and safety1.1.1 Warnings and notesThroughout this document, a number of warnings and notes with helpful user information will be presented.To ensure that these are noticed, they will be highlighted as follows in order to separate them from the gener-al text.

Warnings

Warnings indicate a potentially dangerous situation, which could result in death, personal in-jury or damaged equipment, if certain guidelines are not followed.

Notes

Notes provide general information, which will be helpful for the reader to bear in mind.

1.1.2 Legal information and disclaimerDEIF takes no responsibility for installation or operation of the generator set. If there is any doubt about howto install or operate the engine/generator controlled by the unit, the company responsible for the installation orthe operation of the set must be contacted.

The unit is not to be opened by unauthorised personnel. If opened anyway, the warranty will belost.

DisclaimerDEIF A/S reserves the right to change any of the contents of this document without prior notice.

1.1.3 Safety issuesInstalling and operating the unit may imply work with dangerous currents and voltages. Therefore, the instal-lation should only be carried out by authorised personnel who understand the risks involved in working withlive electrical equipment.

Be aware of the hazardous live currents and voltages. Do not touch any AC measurement in-puts as this could lead to injury or death.

DEIF do not recommend to use the USB as the primary power supply for the unit.

1.1.4 Electrostatic discharge awarenessSufficient care must be taken to protect the terminal against static discharges during the installation. Once theunit is installed and connected, these precautions are no longer necessary.

CGC 400 DRH 4189340786 UK General information


1.1.5 Factory settingsThe unit is delivered from factory with certain factory settings. These are based on average values and arenot necessarily the correct settings for matching the engine/generator set in question. Precautions must betaken to check the settings before running the engine/generator set.

1.2 About the designer's reference handbook1.2.1 General purposeThis Designer's Reference Handbook mainly includes functional descriptions, presentation of display unit andmenu structure, the procedure for parameter setup and reference to parameter lists.

The general purpose of this document is to provide useful overall information about the functionality of thecontrolelr and its applications. This document also offers the user the information he needs in order to suc-cessfully set up the parameters needed in his specific application.

Please make sure to read this document before starting to work with the controller and thegenset to be controlled. Failure to do this could result in human injury or damage to the equip-ment.

1.2.2 Intended usersThis Designer's Reference Handbook is mainly intended for the panel builder designer in charge. On the ba-sis of this document, the panel builder designer will give the electrician the information he needs in order toinstall the unit, e.g. detailed electrical drawings. In some cases, the electrician may use these installation in-structions himself.

1.2.3 Contents and overall structureThis document is divided into chapters, and in order to make the structure simple and easy to use, eachchapter will begin from the top of a new page.

CGC 400 DRH 4189340786 UK General information


2. General product information2.1 Introduction2.1.1 IntroductionThis chapter will deal with the unit in general and its place in the DEIF product range.The CGC, short for Compact Genset Controller, is part of the DEIF Compact Genset Controller range, basedon standard advanced software of Multi-line 2. The concept of the CGC is to offer a cost-effective solution togenset builders, who need a flexible generator protection and control unit for small single to medium andlarge genset applications.

2.2 Type of productThe compact genset controller is a micro-processor based control unit containing all necessary functions forprotection and control of a genset.

It contains all necessary 3-phase measuring circuits, and all values and alarms are presented on the LCDdisplay.

The CGC 400 will come in two different variants: CGC 412 and CGC 413.The CGC 412 is the unit that is able to perform auto start, and the CGC 413 is able to make the automaticmains failure (AMF) sequences. The hardware for the two products is different, therefore some of the sequen-ces described in this document are only relevant to one of the variants. You will find a detailed description ofthe available functions in each product in the chapter "Standard Functions".

For detailed specifications of the hardware, please refer to the datasheet.

2.3 Options2.3.1 OptionsWhen ordering the CGC 400, it comes with a number of features, which were options in the other DEIF prod-ucts.

The customer cannot add or remove any of these features/options.

The included features are A1, C2, H2, H5.

2.4 PC utility software warning2.4.1 PC USW warning

It is possible to remote-control the genset from the PC utility software or AGI. To avoid person-al injury, make sure that it is safe to remote-control the genset.

DEIF do not recommend to use the USB as the primary power supply for the unit.

CGC 400 DRH 4189340786 UK General product information


3. Passwords3.1 Passwords and parameter access3.1.1 PasswordThe unit includes three password levels. All levels can be adjusted in the PC software.

Available password levels:

Password level Factory setting AccessCustomer Service Master

Customer 2000 XService 2001 X XMaster 2002 X X X

A parameter cannot be entered with a password that is ranking too low. But the settings can be displayedwithout password entry.

Each parameter can be protected by a specific password level. To do so, the PC utility software must beused. Enter the parameter to be configured and select the correct password level.

CGC 400 DRH 4189340786 UK Passwords


The password level can also be changed from the parameter view in the column "Level".

3.1.2 Parameter accessTo gain access to adjust the parameters, the password level must be entered:

If the password level is not entered, it is not possible to enter the parameters.

The customer password can be changed in jump menu 9116. The service password can bechanged in jump menu 9117. The master password can be changed in jump menu 9118.

The factory passwords must be changed if the operator of the genset is not allowed to changethe parameters.

It is not possible to change the password at a higher level than the password entered.

CGC 400 DRH 4189340786 UK Passwords


4. Functional descriptions4.1 Standard functions4.1.1 Standard functionsThis section includes functional descriptions of standard functions as well as illustrations of the relevant appli-cation types. Flowcharts and single-line diagrams will be used in order to simplify the information.

The standard functions are listed in the following paragraphs.

The table below describes the genset modes that are available, depending on the variant of the CGC to beused.

Application CommentAutomatic Mains Failure (AMF) (no back sync.) CGC 413Island operation CGC 412/CGC 413Load takeover CGC 413

On the hardware point of view, the CGC 412 has a lighter specification than the CGC 413.

The table below describes which points differ from each other.

Feature (terminal numbers) Available on CGC 412 Available on CGC 413Mains measurement (term. 28 to 32) No YesExtra multi-inputs (term. 58 and 59) No YesExtra binary inputs (term. 56 and 57) No Yes

4.1.2 Operation modes Automatic Mains Failure Island operation Load takeover

4.1.3 Engine control Start/stop sequences Run and stop coil

4.1.4 Generator protection (ANSI) 2 x reverse power (32) 5 x overload (32) 4 x overcurrent (50/51) 2 x overvoltage (59) 3 x undervoltage (27) 3 x over-/underfrequency (81) Multi-inputs (digital, 4-20 mA, Pt100, Pt1000 or RMI) Digital inputs

CGC 400 DRH 4189340786 UK Functional descriptions


The overcurrent level is limited to 200% of the nominal current. Therefore, it cannot be consid-ered as a short-circuit protection.

4.1.5 Busbar protection (ANSI) 2 x over-voltage (59) 2 x under-voltage (27) 2 x over-frequency (81) 2 x under-frequency (81)

4.1.6 Display Push-buttons for start and stop Push-buttons for breaker operations Status texts

4.1.7 M-Logic Simple logic configuration tool Selectable input events Selectable output commands

4.2 Terminal strip overview4.2.1 Reference to Installation Instructions

Please see the Installation Instructions for terminal strip overview and rear side controller view.

4.3 Measurement systemsThe CGC 400 is designed for measurement of voltages between 100 and 480V AC. For further reference, theAC wiring diagrams are shown in the Installation Instructions. In menu 9130, the measurement principle canbe changed between three-phase, single phase and split phase.

Configure the CGC 400 to match the correct measuring system. When in doubt, contact theswitchboard manufacturer for information about the required adjustment.

4.3.1 Single phase systemThe single phase system consists of one phase and the neutral.

The following adjustments must be made to make the system ready for the single phase measuring (example230V AC):



Setting Adjustment Description Adjust tovalue

6004 G nom. voltage Phase-neutral voltage of the generator 230V AC6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM x 36042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM x 36051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM x 36052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM x 36053 BB nom. voltage Phase-phase voltage of the busbar UNOM x 3

The voltage alarms refer to UNOM (230V AC).

The controller has two sets of BB transformer settings, which can be enabled individually inthis measurement system.

4.3.2 Split phase systemThis is a special application where two phases and neutral are connected to the controller. The controllershows phases L1 and L3 in the display. The phase angle between L1 and L3 is 180 degrees. Split phase ispossible between L1-L2 or L1-L3.

The following adjustments must be made to make the system ready for the split phase measuring (example240/120V AC):


6004 G nom. voltage Phase-phase voltage of the generator 120V AC6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM6042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM6051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM6052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM6053 BB nom. voltage Phase-phase voltage of the busbar UNOM

The measurement UL3L1 shows 240V AC. The voltage alarm setpoints refer to the nominal volt-age 120V AC, and UL3L1 does not activate any alarm.


4.3.3 Three-phase systemWhen the controller is delivered from the factory, the three-phase system is selected. When this principle isused, all three phases must be connected to the controller.



The following adjustments must be made to make the system ready for the three-phase measuring (example400/230V AC):


6004 G nom. voltage Phase-phase voltage of the generator 400V AC6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM6042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM6051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM6052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM6053 BB nom. voltage Phase-phase voltage of the busbar UNOM


4.4 Applications4.4.1 Applications and genset modes

This section about applications is to be used for reference using the particular genset mode asstarting point. It is not suitable for reading from beginning to end.

The unit can be used for the applications listed in the table below.

Application CommentAutomatic Mains Failure (no back sync.) CGC 413Island operation CGC 412/CGC 413Load takeover CGC 413

Genset mode Running modeAuto Test Man Block

Automatic Mains Failure (no back sync.) X X X XIsland operation X X X XLoad takeover X X X X

For a general description of the available running modes, please refer to the chapter "Runningmode description".

4.4.2 Application designThe application is designed through the utility software. Please select configuration.



Select a new application and adjust the settings in this dialogue box.The product will be automatically selected if you are currently connected to the unit when doing this configu-ration.

When using the CGC 400, the plant type will be stuck to "Single DG". This means no CAN communicationcan be established with other units.The active choice we can make here is the name of the application.

Using the CGC 400, only one application will be available.

Now the application can be designed using the section control panel.



For each area, it is defined whether a generator and a mains are present, and the number and type of break-ers.

If a CGC 412 is currently connected, it will not be possible to draw an application with a mains or a mainsbreaker.

This application configuration setup is here to give the user the choice of which breaker type is in use.

It will be possible to choose between "Pulse", "Continuous NE" or "Compact" for the generator breaker.For the mains breaker, in case a CGC 413 is connected, the choice will be between "Pulse", "ContinuousNE", "Continuous ND" or "Compact".

4.4.3 AMF (no back synchronisation)Auto mode descriptionThe unit automatically starts the genset and switches to generator supply at a mains failure after an adjusta-ble delay time. It is possible to adjust the unit to change to genset operation in two different ways:

1. The mains breaker will be opened at genset start-up.2. The mains breaker will remain closed until the genset is running, and the genset voltage and frequency is

OK.

In both cases, the generator breaker will be closed when the generator voltage and frequency is OK, and themains breaker is open.

When the mains returns, the unit will switch back to mains supply and cool down and stop the genset. Theswitching back to mains supply is done when the adjusted "Mains OK delay" has expired.



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4.4.4 Island operationAuto mode descriptionThe unit automatically starts the genset and closes the generator breaker at a digital start command. Whenthe stop command is given, the generator breaker is tripped, and the genset will be stopped after a coolingdown period. The start and stop commands are used by activating and deactivating a digital input or with thetime-dependent start/stop commands. If the time-dependent start/stop commands are to be used, the automode must also be used.


4.4.5 Load takeoverAuto mode description

The purpose of the load takeover mode is to transfer the load imported from the mains to the genset for oper-ation on generator supply

The unit automatically starts the genset and closes the generator breaker at a digital start command. Whenthe stop command is given, the generator breaker is tripped, and the genset will be stopped after a cooling-down period. The start and stop commands are used by activating and deactivating a digital input or with thetime-dependent start/stop commands. If the time-dependent start/stop commands are to be used, then theauto mode must also be used.

4.5 Running mode description4.5.1 Manual modeThe unit can be operated in manual mode (MAN). Manual means that the unit will not initiate any sequencesautomatically, as is the case with the auto mode. It will only initiate sequences, if external signals are given.

An external signal may be given in three ways:

1. Display push-buttons2. Digital inputs3. Modbus command at service port or RS485

The standard CGC 400 is only equipped with a limited number of digital inputs, please refer to"Digital inputs" in this document and the data sheet for additional information about availabili-ty.

The following sequences can be activated in manual mode:



Command Description CommentStart The start sequence is initiated and continues until the genset starts or the

maximum number of start attempts has been reached. If Hz/V OK the GBis ready to close.

Stop The genset will be stopped. After disappearance of the running signal, thestop sequence will continue to be active in the "extended stop time" peri-od. The genset is stopped with cooling down time.

The coolingdown time iscancelled if thestop button isactivated twice.

Close GB The unit will close the generator breaker if the mains breaker is openOpen GB The unit will open the generator breaker instantlyClose MB The unit will close the mains breaker if the generator breaker is openOpen MB The unit opens the mains breaker instantly.

4.5.2 Test modeThe test mode function is activated by activating a digital input, Modbus RS485, USW or the TEST push-but-ton on the display.

The settings for the test function are set up in menu

7040 Test

Timer: Period starts when U/f is ok. Engine stops when time runs out.

Return: When the test is completed, the unit will return to the selected mode (manual or auto).

Type: Selection of one of the two types of tests: simple or full.

If the timer in parameter 7042 is set to 0.0 min., the test sequence will be infinite. The test willbe cancelled by pushing TEST again.

The test will be interrupted if the mode is changed to either manual or auto.

4.5.3 Simple testThe controller will go through the start sequence and run the engine for the time set in parameter 7042 with-out any breaker operation. This sequence is initiated by a digital input or the TEST push-button on the front.The test will run until the timer expires. When the timer runs out, the stop sequence including cooling downwill be carried out.

4.5.4 Full testThe full test will start the genset, open the mains breaker, if pressent, and close the generator breaker. Whenthe test timer expires or the test is cancelled by mode change, the generator breaker is opened, the mainsbreaker closed, if pressent, and the generator is stopped after the cooldown time.



It is possible to open and close the generator breaker and the mains breaker in manual mode.

4.5.5 Block modeBlock mode can be enabled by pressing the MAN button twice, with M-Logic or a digital input. When blockmode is selected, the controller will be locked for certain actions. This means that it cannot start the genset orperform any breaker operations from the buttons.The purpose of the block mode is to make sure that the genset does not start for instance during mainte-nance work.

It is important to know that the digital input configured to block mode is a constant signal. So,when it is ON, the unit is in a blocked state, and when it is OFF, it returns to the mode it was inbefore block mode was selected.

When controller goes into block mode, it will: Open GB, shut down the engine, show "BLOCK" in the display and flash the MAN LED GB ON, GB OFF, MB ON, MB OFF and START buttons are lockedIf block mode is selected using the display, the block mode can only be deactivated from the display. If blockmode is selected using the digital input, the block mode can only be deactivated by setting the digital input toOFF.

Before the running mode is changed, it is important to check that persons are clear of the gen-set and that the genset is ready for operation.

Alarms are not influenced by block mode selection.

The genset can be started from the local engine control panel, if such is installed. Therefore,DEIF recommends avoiding local cranking and starting of the genset.

The genset will shut down if block mode is selected while the genset is running.

4.6 Single-line diagrams4.6.1 Application illustrationIn the following, the various applications are illustrated in single-line diagrams.



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4.6.2 Automatic Mains Failure

G

Controller

Load

4.6.3 Island operation

G

Controller

Load



4.6.4 Load takeover

G

Controller

Load

4.7 Flowcharts4.7.1 FlowchartsUsing flowcharts, the principles of the most important functions will be illustrated in the next sections. Thefunctions included are:

Mode shift MB open sequence GB open sequence Stop sequence Start sequence MB close sequence GB close sequence Load takeover Island operation Automatic Mains Failure Test sequence

The flowcharts on the following pages are for guidance only. For illustrative purposes, theflowcharts are simplified in some extent.



4.7.2 Mode shift

Start

Plant mode not

Island and AMF

Mains failure

Initiate AMF

sequence

End

No

No

Yes

Yes

Mode shift

enabled

No

Yes

Mains OK timer

timed out

Initiate mains

return sequence

MB close

sequence

Continue in

selected mode

YesNo

To enable mode shift, a digital input has to be set up.



4.7.3 MB open sequence

Start

Load take

overNo

MB closedNo

Yes

Mains failure

Open MB

End

Yes

MB openedAlarm MB

open failure

Yes

No



4.7.4 GB open sequence

Start

Is GB

closed

NoStop conditions

OK

No

Yes

Open GB

End

Yes

GB opened Alarm

Yes

No



4.7.5 Stop sequence

Start

GB open

seq OK

Run coil

Deactivate

run coil

End

No

No

Yes

Stop conditions

OK

No

Yes

Genset

stoppedAlarm

Yes

No

Yes

AUTO

mode

Yes

No

Cooldown

timer run out

Stop relay

Activate stop

relay

Yes

No



4.7.6 Start sequence

Start

Start prepare

timer

Stop relay timer

timed out

Off relay

ON

End

No

No

Yes

Start condition

OK

No

Yes

Max start

attempts

Ready to

close GB

Yes

No

Yes

Start relay timer

timeout

Yes

No

Start relay

ON

Start failure

alarm

Alarm

F/U OK

Run feedback

detected

Genset startedNo

Yes

No

No

Yes

Yes



4.7.7 MB close sequence

Start

GB open

NoMB open

No

Yes

Yes

Mains

OK

End

Yes

Close MB

GB open

sequence

GB open

failure

Mains

failure

MB close

failure

Yes

No

No

No

Yes



4.7.8 GB close sequence

Start

GB open

Yes

MB open

sequence

Volt/ freq

OK

Start seq OK

MB open No

Yes

Mains

OK

End

Yes

Close GB

MB open

failure

Mains

failure

GB close

failure

Yes

No

No

No

Yes

No

No

No

Yes

Yes



4.7.9 Load takeover

Genset

operation

Start

Activate start

input

Start

sequence

MB open

sequence

GB close

sequence

End

Deactivate

start input

GB open

sequence

MB close

sequence

Stop

sequence



4.7.10 Island operation

Start

End

Operation

Start input

deactivated

Start input

active

Start

sequence

GB close

sequence

GB open

sequence

Stop

sequence



4.7.11 Automatic Mains Failure, AMF

Start

#7065: start

eng + open MB

End

Mains failureNo

Yes

MB close

sequence

Open MB

Start sequence

GB close

sequence

Mains ok

Time out

Start sequence

Open MB

GB close

sequence

No

Yes

No

Yes



4.7.12 Test sequence

Timer run out

Return to

running mode,

menu 7043

End

Stop

sequence

Open MB

sequence

Yes

Start

Select test

mode

Simpel test

Start

sequence

Test timer

Full test

Start

sequence

Test timerClose GB

sequence



4.8 Sequences4.8.1 SequencesThe following contains information about the sequences of the engine, the generator breaker, and the mainsbreaker. These sequences are automatically initiated if the auto mode is selected.

In the manual mode, the selected sequence is the only sequence initiated (e.g. press the START push-but-ton: the engine will start, but not close the breaker).

The following sequences will be illustrated below: START sequence STOP sequence Breaker sequences

The stop coil function can only be used in relays 24,26, 45 and 47.We recomment that a resistoris mounted across the relay coil to prevent undesirable closing of the relay.



4.8.2 Start sequenceThe following drawings illustrate the start sequences of the genset with normal start prepare and extendedstart prepare.

No matter the choice of start prepare function, the run coil is activated before the start relay (starter). The timebetween the run coil and the start relay is setup in parameter 6151. In the following drawings this time is setto 1 sec.

Start sequence:

Normal start prepare

tOFF tOFF

1 sec.

2nd start attempt1st start attempt 3rd start attempt

Crank (starter)

Start prepare

Stop coil

Run coil

Running feedback



Start sequence:

Extended start prepare

tOFF tOFF

1 sec.

2nd start attempt1st start attempt 3rd start attempt

Crank (starter)

Start prepare

Stop coil

Run coil

Running feedback

4.8.3 Start sequence conditionsThe start sequence initiation can be controlled by the following conditions: RMI 6 (oil pressure) RMI 7 (water temperature) RMI 8 (fuel level)This means that if e.g. the oil pressure is not primed to the sufficient value, then the crank relay will not en-gage the starter motor.

The selection is made in setting 6185. For each of the RMI settings, the rule is that the value (oil pressure,fuel level or water temperature) must exceed the setpoint of setting 6186 before starting is initiated.

If the value in 6186 is set to 0.0, the start sequence is initiated as soon as it is requested.



lalitHighlight

The diagram below shows an example where the RMI signal builds up slowly, and starting is initiated at theend of the third start attempt.

Start sequence

Cranking depends on RMI

Start prepare

(3 start attempts)

Stop relay

Running feedback

Crank relay

Run coil

RMI

measurement OK

RMI value

Cranking starts

1 2 3

4.8.4 Running feedbackDifferent types of running feedback can be used to detect if the motor is running. Refer to menu 6170 for se-lection of the running feedback type.

The running detection is made with a built-in safety routine. The running feedback selected is the primaryfeedback. At all times, all the types of running feedback is used for running detection. If, for some reason, theprimary choice is not detecting any running feedback, the starter relay will stay activated for 1 additional sec-ond. If a running feedback is detected based on one of the secondary choices, the genset will start. This way,the genset will still be functional even though a tacho sensor is damaged or dirty.

As soon as the genset is running, no matter if the genset is started based on the primary or secondary feed-back, the running detection will be made, based on all available types.



lalitHighlight

The sequence is shown in the diagram below.

Running feedback failure

Primary running

feedback

Start relay (crank)

Secondary running

feedback

Alarm

tAlarm

1sec

Interruption of start sequenceThe start sequence is interrupted in the following situations:

Event CommentStop signalStart failureRemove starter feedback Tacho setpoint.Running feedback Digital input.Running feedback Tacho setpoint.Running feedback W terminalRunning feedback Frequency measurement above 18 Hz.

The frequency measurement requires a voltage measurement of 30% ofUNOM.The running detection based on the frequency measurement can replacethe running feedback based on tacho or digital input or engine communi-cation.

Running feedback Oil pressure setpoint (menu 6175).Running feedback EIC (engine communication).Emergency stopAlarm Alarms with shutdown" or "trip and stop" fail class.Stop push-button on display Manual mode.Modbus stop command Manual mode.Binary stop input Manual mode.Deactivate the "auto start/stop" Auto mode in the following genset modes:

Island operation or load takeover mode.

If the MPU input is to be used to remove the starter, it has to be set up in menu 6174.

Setpoints related to the start sequence- Crank failure alarm (4530 Crank failure)



If MPU is chosen as the primary running feedback, this alarm will be raised if the specified rpm is not reachedbefore the delay has expired.

- Run feedback failure (4540 Run feedb. fail)If running is detected on the frequency (secondary), but the primary running feedback, e.g. digital input, hasnot detected running, this alarm will be raised. The delay to be set is the time from the secondary runningdetection and until the alarm is raised.

- Hz/V failure (4560 Hz/V failure)If the frequency and voltage are not within the limits set in menu 2110 after the running feedback is received,this alarm is raised when the delay has expired.

- Start failure alarm (4570 Start failure)The start failure alarm occurs, if the genset has not started after the number of start attempts set in menu6190.

- Start prepare (6180 Starter)Normal prepare: the start prepare timer can be used for start preparation purposes, e.g. prelubrication or pre-glowing. The start prepare relay is activated when the start sequence is initiated and deactivated when thestart relay is activated. If the timer is set to 0.0 s, the start prepare function is deactivated.

Extended prepare: the extended prepare will activate the start prepare relay when the start sequence is initi-ated and keep it activated when the start relay activates until the specified time has expired. If the ext. pre-pare time exceeds the start ON time, the start prepare relay is deactivated when the start relay deactivates. Ifthe timer is set to 0.0 s, the extended prepare function is deactivated.

Start ON time: the starter will be activated for this period when cranking.

Start OFF time: the pause between two start attempts.



4.8.5 Stop sequenceThe drawings illustrate the stop sequence.

tCOOL

tstop

Run coilStop sequence

Cooling down time

Run coil

Running feedback

Sequence initiated

tCOOL

tstop

Stop coilStop sequence

Cooling down time

Stop coil

Running feedback

Sequence initiated

The stop sequence will be activated if a stop command is given. The stop sequence includes the coolingdown time if the stop is a normal or controlled stop.



Description Coolingdown

Stop Comment

Auto mode stop X XTrip and stop alarm X XStop button on display (X) X Manual. Cooling down is interrupted if the stop button

is activated twice.Remove "auto start/stop" X X Auto mode: island operation and load takeover.Emergency stop X Engine shuts down and GB opens.

The stop sequence can only be interrupted during the cooling down period. Interruptions can occur in thesesituations:

Event CommentMains failure AMF mode selected (or mode shift selected ON) and auto mode selected.Start button is pressed Auto mode: engine will run in idle speed.Binary start input Auto mode: island operation and load takeover.GB close button is pressed Manual mode.

Setpoints related to the stop sequence

- Stop failure (4580 Stop failure)A stop failure alarm will appear if the primary running feedback or the generator voltage and frequency arestill present after the delay in this menu has expired.

- Stop (6210 Stop)Cooling-down:The length of the cooling-down period.

Extended stop:The delay after the running feedback has disappeared until a new start sequence is allowed. The extendedstop sequence is activated any time the stop button is pressed.

Cool down controlled by engine temperature:The engine temperature-controlled cool-down is to ensure that the engine is cooled down below the setpointin menu 6214 "Cool down temperature" before the engine is stopped. This is particularly beneficial if the en-gine has been running for a short period of time and therefore not reached normal cooling water temperature,as the cool-down period will be very short or none at all. If the engine has been running for a long period, itwill have reached normal running temperature, and the cool-down period will be the exact time it takes to getthe temperature below the temperature setpoint in menu 6214.

If, for some reason, the engine cannot get the temperature below the temperature setpoint in 6214 within thetime limit in parameter 6211, the engine will be shut down by this timer. The reason for this could be highambient temperature.

If the cooling-down timer is set to 0.0 s, the cooling-down sequence will be infinite.



If the cooling-down temperature is set to 0 deg., the cooling-down sequence will be entirelycontrolled by the timer.

4.8.6 Breaker sequencesThe breaker sequences will be activated depending on the selected mode:

Mode Genset mode Breaker controlAuto All Controlled by the unitManual All Push-button, M-Logic, Modbus, Digital inputBlock All Controlled by the unit

Before closing the breakers, it must be checked that the voltage and frequency are OK.

Setpoints related to MB control

7080 MB controlMode shift: When enabled, the controller will perform the AMF sequence in case of a mains failure

in load takeover or TEST mode

MB close delay: The time from GB OFF to MB ON

Load time: After opening of the breaker, the MB ON sequence will not be initiated before this de-lay has expired. Please refer to the description of "Breaker spring load time".

If no MB is represented, the relays and inputs normally used for MB control become configura-ble.

The GB can only be closed if the mains breaker is open. The MB can only be closed if the gen-erator breaker is open.

- AMF MB opening (7060 U mains failure)

It is possible to select the functionality of the mains breaker closing function. This is necessary if the unit op-erates in Automatic Mains Failure (AMF).

The possibilities are:

Selection DescriptionStart engine and openmains breaker

When a mains failure occurs, the mains breaker opens, and the engine starts atthe same time.

Start engine When a mains failure occurs, the engine starts. When the generator is runningand the frequency and voltage are OK, the MB opens and the GB closes.

4.8.7 AMF timersThe time charts describe the functionality at a mains failure and at mains return. The timers used by the AMFfunction are indicated in the table below:



Timer Description Menu numbertFD Mains failure delay 7070 f mains failure

7060 U mains failuretFU Frequency/voltage OK 6220 Hz/V OKtFOD Mains failure OK delay 7070 f mains failure

7060 U mains failuretGBC GB ON delay 6230 GB controltMBC MB ON delay 7080 MB control

Example 1:7065 Mains fail control: Start engine and open MB

GB On

MB On

Mains failure

detected

Gen start seq

tFD

Gen stop seq

Mains OK

Mains OK

tFOD

tFU

tMBC

Gen running

Gen f/U OK



Example 2:7065 Mains fail control: Start engine

tGBC

GB On

MB On

Mains failure

detected

Gen start seq

tFD

Gen stop seq

Mains OK

Mains OK

tFOD

tFU

tMBC

Gen running

Gen f/U OK

Conditions for breaker operationsThe breaker sequences react depending on the breaker positions and the frequency/voltage measurements.

The conditions for the ON and OFF sequences are described in the table below:

Conditions for breaker operationsSequence ConditionGB ON, direct closing Running feedback

Generator frequency/voltage OKMB open

MB ON, direct closing Mains frequency/voltage OKGB open

GB OFF, direct opening MB openMB OFF, direct opening Alarms with fail classes:

Shut down or Trip MB alarms



5. Display and menu structure5.1 Reference to operator's manual

Information about display and menu structure can be found in the "Operator's manual", whichis located on DEIF's homepage under documentation for CGC 400.

CGC 400 DRH 4189340786 UK Display and menu structure


6. Engine communication6.1 Reference to H5 manual6.1.1 Engine communication

Information about engine communication can be found in the "Option H5 and H7" manual,which is located on DEIF's homepage under documentation for CGC 400.

CGC 400 DRH 4189340786 UK Engine communication


7. Additional functions7.1 Start functions7.1.1 Start functionsThe controller will start the genset when the start command is given. The start sequence is deactivated whenthe remove starter event occurs or when the running feedback is present.

The reason for having two possibilities to deactivate the start relay is to be able to delay the alarms with runstatus.

If it is not possible to activate the run status alarms at low revolutions, the remove starter function must beused.

An example of a critical alarm is the oil pressure alarm. Normally, it is configured according to the shutdownfail class. But if the starter motor has to disengage at 400 RPM, and the oil pressure does not reach a levelabove the shutdown setpoint before 600 RPM, then the genset would shut down if the specific alarm was ac-tivated at the preset 400 RPM. In that case, the running feedback must be activated at a higher number ofrevolutions than 600 RPM.

t

RPM

Oil

pre

ssu

re

400

1000

RPM

600

Ru

nn

ing

Re

mo

ve

sta

rte

r

7.1.2 Digital feedbacksIf an external running relay is installed, the digital control inputs for running detection or remove starter can beused.

Running feedbackWhen the digital running feedback is active, the start relay is deactivated, and the starter motor will be disen-gaged.

CGC 400 DRH 4189340786 UK Additional functions


tRPMRPMNOM

Run. feedback

RPM

Firing speed

The diagram illustrates how the digital running feedback is activated when the engine has reached its firingspeed.

Remove starterWhen the digital remove starter input is present, the start relay is deactivated, and the starter motor will bedisengaged.

t

RPMRPMNOM

Remove starter

Run. feedback

RPM

Firing speed Running

The diagram illustrates how the remove starter input is activated when the engine has reached its firingspeed. At the running speed, the digital running feedback is activated.

The remove starter input must be configured from a number of available digital inputs.

The running feedback is detected by either the digital input (see diagram above), frequencymeasurement above 18 Hz, RPM measured by magnetic pick-up or EIC (engine communica-tion).

7.1.3 Analogue tacho feedbackWhen a magnetic pick-up (MPU) is being used, the specific level of revolutions for deactivation of the startrelay can be adjusted.



Running feedbackThe diagram below shows how the running feedback is detected at the firing speed level. The factory settingis 1000 RPM (6170 Running detect.).

t

RPMRPMNOM

Run. feedback,

menu 4301

RPM

Firing speed

Notice that the factory setting of 1000 RPM is higher than the RPM level of starter motors oftypical design. Adjust this value to a lower value to avoid damage of the starter motor.

Remove starter inputThe drawing below shows how the setpoint of the remove starter is detected at the firing speed level. Thefactory setting is 400 RPM (6170 Running detect.).

t

RPMRPMNOM

Remove starter,

menu 6161

RPM


Run. feedback,

menu 4301

The number of teeth on the flywheel must be adjusted in menu 6170 when the MPU input isused.

7.1.4 Oil pressureThe multi-inputs on terminals 6, 7 and 8 can be used for the detection of running feedback. The terminal inquestion must be configured as a RMI input for oil pressure measurement.



Multi-input 58 and 59 cannot be used for this purpose.

When the oil pressure increases above the adjusted value (6175 Pressure level), the running feedback isdetected, and the start sequence is ended.

Running feedback

t

RPMRPMNOM

Run detection

Oil pressure

menu 6175

RPM / Oil pressure

Firing speed

Remove starter inputThe drawing below shows how the setpoint of the "remove starter input" is detected at the firing speed level.The factory setting is 400 RPM (6170 Running detect.).

t

RPMRPMNOM

Remove starter,

menu 6161

RPM / Oil pressure


Run detection

Oil pressure

menu 6175

The remove starter function can use the MPU or a digital input.



7.2 Phase sequence error7.2.1 Description of phase sequence errorPrior to closing a breaker, the unit checks that the phase sequence is correct, depending on the chosenphase direction in parameter 2154: "phase rotation". If it is incorrect (reversed), an alarm will be issued, andthe breaker in question will not be closed.

7.3 Breaker types7.3.1 Breaker typesThere are five possible selections for the setting of breaker type for both mains breaker and generator break-er. The breaker type is selected in the application configuration.

Continuous NE and Continuous NDThis type of signal is most often used combined with a contactor. When using this type of signal, the control-ler will only use the close breaker(e.g. GB On) relays. The relay will be closed for closing of the contactor andwill be opened for opening of the contactor. Continuous NE is a normally energised signal, and continuousND is a normally deenergised signal.

PulseThis type of signal is most often used combined with circuit breaker. With the setting pulse, the controller willuse the close command(e.g. GB On) and the open command relay (e.g. GB Off). The close breaker relay willclose for a short time for closing of the circuit breaker. The open breaker relay will close for a short time foropening of the breaker.

CompactThis type of signal will most often be used combined with a compact breaker, a direct controlled motor-drivenbreaker. With the setting compact, the controller will need to use both a close command(e.g. GB On) and aopen command relay(e.g. GB Off). The close breaker relay will close for a short time for the compact breakerto close. The breaker off relay will close for the compact breaker to open and hold it closed long enough forthe motor in the breaker to recharge the breaker. If the compact breaker is tripped externally, it is rechargedautomatically before next closing.

If compact breaker is selected, the length of breaker open signal can be adjusted. This can bedone in menu 2160/2200 (GB open fail and MB open fail).

7.4 Breaker spring load timeTo avoid breaker close failures in situations where breaker ON command is given before the breaker springhas been loaded, the spring load time can be adjusted for GB/TB and MB.

The following describes a situation where you risk getting a close failure:

1. The genset is in auto mode, the auto start/stop input is active, the genset is running and the GB is closed.2. The auto start/stop input is deactivated, the stop sequence is executed and the GB is opened.3. If the auto start/stop input is activated again before the stop sequence is finished, the GB will give a GB

close failure as the GB needs time to load the spring before it is ready to close.

Different breaker types are used, and therefore there are two available solutions:

1. Timer-controlled



A load time setpoint for the GB/TB and MB control for breakers with no feedback indicating that the spring isloaded. After the breaker has been opened, it will not be allowed to close again before the delay has expired.The setpoints are found in menus 6230, 7080 and 8190.

2. Digital inputTwo configurable inputs to be used for feedbacks from the breakers: One for GB/TB spring loaded and onefor MB spring loaded. After the breaker has been opened, it will not be allowed to close again before the con-figured inputs are active. The inputs are configured in the PC utility software. When the timers are counting,the remaining time is shown in the display.

If the two solutions are used together, both requirements are to be met before closing of the breaker is al-lowed.

Breaker LED indicationTo alert the user that the breaker close sequence has been initiated but is waiting for permission to give theclose command, the LED indication for the breaker will be flashing yellow in this case.

If the breaker needs time to reload the spring after it has opened, then the CGC can take this delay into ac-count. This can be controlled through timers in the CGC or through digital feedbacks from the breaker, de-pending on the breaker type.

7.4.1 PrincipleThe diagram shows an example where a single CGC in island mode is controlled by the AUTO start/stop in-put.

This is what happens: When the AUTO start/stop input deactivates, the GB opens. The AUTO start/stop isreactivated immediately after the GB has opened, e.g. by the operator through a switch in the switchboard.However, the CGC waits a while before it issues the close signal again, because the spring load time mustexpire (or the digital input must be activated - not shown in this example). Then the CGC issues the closesignal.

Spring load time

GB closed

GB open

Auto Start/stop ON

Auto Start/stop OFF

t [sec]



7.5 Alarm inhibitIn order to select when the alarms are to be active, a configurable inhibit setting for each alarm has beenmade. The inhibit functionality is a way to make an alarm inactive when the events, chosen in the menu be-low, are active. The inhibit functionality is only available via the PC utility software. For each alarm, there is adrop-down window where it is possible to select which signals have to be present in order to inhibit the alarm.



Selections for alarm inhibit:

Function DescriptionInhibit 1 M-Logic outputs: Conditions are programmed in M-LogicInhibit 2Inhibit 3GB ON (TB ON) The generator breaker is closedGB OFF (TB ON) The generator breaker is openRun status Running detected and the timer in menu 6160 expiredNot run status Running not detected or the timer in menu 6160 not expiredGenerator voltage > 30% Generator voltage is above 30% of nominalGenerator voltage < 30% Generator voltage is below 30% of nominalMB ON The mains breaker is closedMB OFF The mains breaker is open

The timer in 6160 is not used if binary running feedback is used.

Inhibit of the alarm is active as long as one of the selected inhibit functions is active.

Example:



In this example, inhibit is set to Not run status and GB ON. Here, the alarm will only be active when the gen-erator is running and disabled again when the GB is closed.

7.5.1 Run status (6160)Alarms can be adjusted to activate only when the running feedback is active and a specific time delay hasexpired.

The diagram below illustrates that after activation of the running feedback, a run status delay will expire.When the delay expires, alarms with Run status will be activated.



ttRUN

Run. feedback

Alarms active

The timer is ignored if digital running feedback is used.

7.6 Access lockThe purpose of access lock is to deny the operator the possibility to configure the unit parameters andchange the running modes from the display and digital inputs. When activated the display will say "Accesslock" when pushing the display buttons affected by the access lock, please see the table below.

The input to be used for the access lock function is defined in the PC utility software (USW).

Access lock will typically be activated from a key switch installed behind the door of the switchboard cabinet.



Display Button Button icon Button status CommentSTART Not active

STOP Not active

GB ON Not activeGB OFF Not activeMB ON Not activeMB OFF Not activeTEST Not active

AUTO Not active

MANUAL Not active

LED TEST Active

HORN Active

UP Active

SELECT Active If the access lock is activated when the view menu sys-tem is displayed, it is not possible to access the setupmenu. If the access lock is activated when the setupmenu system is displayed, this button is not active.

DOWN Active

ESC Active

After three minutes, the display returns to the view menu system. The setup menu system canonly be entered again if the access lock is deactivated.



The following digital input functions are affected when access lock is activated:

Digital input name Input status CommentRemote Start Not activeRemote Stop Not activeRemote GB ON Not activeRemote GB OFF Not activeRemote MB ON Not activeRemote MB OFF Not activeTest mode Not activeAuto mode Not activeManual mode Not activeBlock Not active

7.7 Digital mains breaker controlThe unit will normally execute the automatic mains failure sequence based on the settings adjusted in thesystem setup. Besides these settings it is possible to configure a digital input that can be used to control themains return sequence. This input is the "Mains Okay" input. The purpose of this function is to let an externaldevice or an operator control the mains return sequence. The external device can e.g. be a PLC.

The flowchart below shows that if the input is configured, it needs to be activated (by a pulse) in order to ini-tiate the mains return sequence. The load will continue on generator supply if the input is not activated.



The mains OK delay is not used at all when the "Mains Okay" input is configured.

Mains OK

Mains OK

delay

MB input

configured

Expired

MB control

input

ON

MB and GB

operation

Sequence

YesNo

No No

Yes Yes

7.8 Command timersThe purpose of the command timers is to be able to e.g. start and stop the genset automatically at specifictimes each weekday or certain weekdays. If auto mode is activated, this function is available in island opera-tion and load takeover operation. Up to four command timers can be used for e.g. start and stop. The com-mand timers are available in M-Logic and can be used for other purposes than starting and stopping the gen-set automatically. The settings can either be set up through the PC utility software or the display. Each com-mand timer can be set for the following time periods:

Individual days (MO, TU, WE, TH, FR, SA, SU) MO, TU, WE, TH MO, TU, WE, TH, FR MO, TU, WE, TH, FR, SA, SU SA, SU

To start in AUTO mode, the "Auto start/stop" command can be programmed in M-Logic or inthe input settings.

The time-dependent commands are flags that are raised when the command timer is in the ac-tive period.



7.9 Running output6160 Run status can be adjusted to give a digital output when the genset is running.

Select the correct relay number in output A and output B and enable the function. Change the relay functionto limit in the I/O menu. Then the relay will activate, but no alarm will appear.

If the relay function is not changed to "limit" function, an alarm will appear at every runningsituation.



7.10 Idle running7.10.1 Idle runningThe purpose of the idle run function is to change the start and stop sequences to allow the genset to operateunder low temperature conditions.

It is possible to use the idle run function with or without timers. Two timers are available. One timer is used inthe start sequence, and one timer is used in the stop sequence.

The main purpose of the function is to prevent the genset from stopping. The timers are available to make thefunction flexible.

The speed governor must be prepared for the idle run function if this function is to be used.

The function is typically used in installations where the genset is exposed to low temperatures which couldgenerate starting problems or damage the genset.

7.10.2 DescriptionThe function is enabled and configured in 6290 Idle running. It has to be noted that the governor itself musthandle the idle speed based on a digital signal from the unit (see the principle diagram below).

When the function is enabled, two digital inputs are used for control purposes. These inputs must be config-ured through the Utility software:

No. Input Description1 Low speed in-

putThis input is used to change between idle speed and nominal speed. This inputdoes not prevent the genset from stopping - it is only a selection between idle andnominal speed.

2 Temperaturecontrol input

When this input is activated, the genset will start. It will not be able to stop as longas this input is activated. To use temperature control it is necessary to enable idlespeed in parameter 6295.

If the idle run function is selected by means of the timer, the low speed input is overruled.

Turbo chargers not originally prepared for operating in the low speed area can be damaged ifthe genset is running in "idle run" for too long.



Low speed

input

DEIF controller

Temperature

control input

relayIdle run input

GOVERNOR

Actuator

Start/stop

gen-set

High/low

speed

selection

7.10.3 ExamplesIdle speed during starting and stoppingIn this example both the start and the stop timers are activated.

The start and stop sequences are changed in order to let the genset stay at the idle level before speeding up.It also decreases the speed to the idle level for a specified delay time before stopping.

Start Stop

RPM

300

1500

t

tSTART tSTOP

Idle speed, no stoppingIn this example both timers are deactivated.

If the genset is to be prevented from stopping, then the digital input "temp control" must be left ON at alltimes. In that case the characteristic looks like this:



Start Stop

RPM

300

1500

t

The oil pressure alarm (RMI oil) will be enabled during idle run if set to "ON".

7.10.4 InhibitThe alarms that are deactivated by the inhibit function are inhibited in the usual manner, except for the oilpressure alarms; RMI oil 6,7 and 8 which are active during "idle run" as well.

7.10.5 Running signalThe running feedback must be activated when the genset is running in idle mode.

7.10.6 Idle speed flowchartsThe flowcharts illustrate the starting and stopping of the genset by use of the inputs "temp control" and "lowspeed".



7.10.7 Start

Start

Temp control ON

End

NoAuto

start/stop

ON

No

Yes

Idle timer on

Yes Lowspeed ON

No starting

Start the

Genset

Start the

Genset

Timer expired

Genset running

at f NomGenset running

at idle speed

No

Yes

No

Yes

Yes

No



7.10.8 Stop

Start

Temp control

OFF

End

NoAuto

start/stop

OFF

No

Yes

Idle timer on

YesLowspeed ON

Genset stop

sequence

Idle timer

expired

Genset running

at idle speed

No

Yes

No

Yes

Yes

Genset running

at idle speed

Genset stop

sequence

No

7.11 Engine heaterThis function is used to control the temperature of the engine. A sensor measuring the cooling water tempera-ture is used to activate an external heating system to keep the engine at a minimum temperature.

The setpoints adjusted in menu 6320 are:



Setpoint: This setpoint +/- the hysteresis is the start and stop points for the engine heater.

Output A: The relay output for the engine heater.

Input type: Multi-input to be used for temperature measurement.

Hysteresis: This decides how big a deviation from the setpoint is needed to activate/deactivate the engineheater.

Enable: Enables the engine heater function.

Principle diagram:

43C

37C

Engine heater

relay

Start attempt

DG running

The engine heater function is only active when the engine is stopped.

7.11.1 Engine heater alarmIf the temperature keeps dropping after the start setpoint has been exceeded, an alarm will be raised if con-figured in menu 6330.

7.12 VentilationThis function can be used to control the cooling of the engine. The purpose is to use a multi-input for measur-ing the cooling water temperature and that way activate an external ventilation system to keep the engine be-low a maximum temperature. The functionality is shown in the below diagram.

Setpoints available (6460 Max ventilation):



Setpoint: The limit for activation of the relay set in OA.

Output A (OA): The relay activated when the setpoint is exceeded.

Hysteresis: The number of degrees the temperature has to be below the setpoint in order to deacti-vate the relay set in OA.

Enable: Enable/disable the ventilation function.

The type of input to use for the temperature measurement is selected in menu 6323 Engineheater.

95C

85C

Relay

7.12.1 Max. ventilation alarmTwo alarms

Documents

CGC 400 DRH 4189340786 UK