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Manual Mode / Test
In manual /Test mode the DG can start or stop by pressing Start and stop button 
respectively. The main contactor can be switched on and off by pressing MCB 
button and generator contactor can be switched on / off by pressing GCB button.

1.4

Engine solenoid  Engine solenoid contact (Terminal 15 & 16)  can be configured 
in two modes

a. Mode 0: In this mode fuel solenoid contact changes from NO to close at 

the time of cranking and remains close till the Genset is running. For 
stopping the Generator this contact opens.

b. Mode 1: In this mode fuel solenoid contact remains open at the time of 

cranking and till the Genset is running . For stopping the Generator this 
contact closes for a user programmed time. 

For changing the solenoid mode first press Reset button, than simultaneously  
press GCB  button . It’s a good practice to switch off and than switch on the 
battery supply after changing the mode.

1.5

Display

α)

It LCD display, to display voltages. Beside the numeric display there are 14 LEDs
for annunciations 

1.6

Programming mode

Programming mode can be entered any time by simultaneously pressing Reset & A/M 
keys. The following table details the various programmable parameters:
1.6.1

Setting table

Sl.
No

Parameter

Explanation of parameter

Default 
setting

Setting 
Range

1

Mains Over 
Voltage

Max. permissible voltage, above this the 
voltage is treated unhealthy & Genset is 
started.  

270V

80-300V

2

Mains Under 
Voltage

Min. permissible voltage, below this the 
voltage is treated unhealthy & Genset is 
started

180V

80-300V

3

Mains voltage 
supervision time

Time for which the mains voltage has to be
unhealthy  (Under or Over voltage as 
defined above in 1 & 2) before starting the 
Generator.

10Sec

0-999Sec

4

Generator Start 
Delay

After opening the Mains MCB, Generator 
starting is delayed by generator start delay 
time

Disable

0-
999Sec.

5

Generator Over 
Voltage

Max. permissible voltage, above this the 
voltage is treated unhealthy & the 
Generator is stopped by releasing fuel 
solenoid.
Generator contactor is released and mains 
contactor is closed. Hooter shall be 
activated .

270V

80-300V

6

Generator Under 
Voltage

Min. permissible voltage, below this the 
voltage is treated unhealthy & the 

180V

80-300V

Cat/DCG-6D1I/07-08/03/Ver 1                                                                        Page 6/10

Summary of Contents for DGC-6D

Page 1: ......

Page 2: ...Cat DCG 6D1I 07 08 03 Ver 1 Page 2 10 ...

Page 3: ... LED Indications 1 2 4 Timer 1 3 Function 1 4 Engine solenoid 1 5 Display 1 6 Programming Mode 1 6 1 Setting Table 1 7 Annunciation LED Functions 1 8 Switch Description 1 9 Fault 1 9 1 Internal Fault 1 9 2 External Fault 1 9 3 Fault Reset 1 10 Specification 1 11 Connection Diagram Cat DCG 6D1I 07 08 03 Ver 1 Page 3 10 ...

Page 4: ...ent User programmable Cranking attempt Generator over speed supervision DC Battery Voltage supervision Under Over voltage External fault detection 2 digital inputs External engine running signal DG Fail to Start supervision and indication DG fail to Stop supervision and indication Unit remains fully operational even if battery voltage falls to zero volts for one sec 1 2 2 Measurement Display DGC 6...

Page 5: ...it of Under and Over voltage for more than Mains supervision time DGC 6D starts the genset To start the genset DGC 6D gives a cranking signal via potential free contact to crank motor On detection of engine start started either by external engine start input or by build up of generator voltage the Crank command is withdrawn Max duration of crank command is user settable The maximum number of crank...

Page 6: ...tions 1 6 Programming mode Programming mode can be entered any time by simultaneously pressing Reset A M keys The following table details the various programmable parameters 1 6 1 Setting table Sl No Parameter Explanation of parameter Default setting Setting Range 1 Mains Over Voltage Max permissible voltage above this the voltage is treated unhealthy Genset is started 270V 80 300V 2 Mains Under V...

Page 7: ...ator 30Sec 0 999Sec 15 Generator Recooling Time The time for which Generator is allowed to run on no load before switching off 30 sec 0 999Sec 16 Stop solenoid time The time for which stop solenoid will be kept active while stopping the engine 30Sec 0 100Sec 17 Low Fuel time delay Time delay before this fault can be activated Faults are described in details 5 Sec 0 999Sec 18 LLOP Time delay Time d...

Page 8: ...is used to increment the value of the parameter under programming In manual mode this key may be used for ignition crank command to DG 3 OR Stop Decrement This key is only active during programming mode and is used to decrement the value of the parameter under programming In manual mode this key may be used to stop the DG 4 Reset Reset Reset key resets the Hooter and Fault signals The first press ...

Page 9: ... timer and is generated after the expiry of programmed HWT Emergency Time delay This fault can be used for emergency stop or it can be used for High Water Temperature 19 3 Fault Reset ι Internal Faults All internal faults can be reset by pressing reset Key ιι LLOP This fault can be reset by pressing reset Key ιιι HWT Low fuel This fault cannot be reset till the conditions creating this fault are n...

Page 10: ...oducts hence specifications are subject to change without any notice Cat DCG 6D1I 07 08 03 Ver 1 Page 10 10 Crank Fuel Hooter Mains Gen Batt Batt Vr Vy Vb Sup N Vg LLOP HWT Low fuel 1 2 3 5 7 9 8 18 17 15 14 13 11 10 V V _ 12 16 4 Gen N 6 Crank Fuel Hooter Mains Gen Batt Batt Vr Sup N CT1 CT2 Vg LLOP HWT Low Fuel 1 2 3 5 7 9 8 18 17 15 14 13 11 10 V V _ 12 16 4 Gen N 6 ...

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