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i)

Generator Fails to Start. Corresponding LED blinks and hooter is activated

ii)

Generator Voltage Unhealthy. Corresponding LED blinks and hooter is 
activated 

iii)

Generator Fails to Stop. Corresponding LED blinks and hooter is activated

iv)

Over-Speed. Corresponding LED blinks, hooter is activated & Genset stops.

v)

Battery Under or Over voltage. Corresponding LED blinks. 

1.9.2

External Faults:

Those faults which cannot be sensed by the unit itself (these faults are not reflected by the
generator voltage) and are to be provided externally. The external faults could be Low 
Lube Oil Pressure, High Water Temperature, emergency stop etc.
There is provision to connect three such faults externally. 

i)

LLOP: This fault can only be activated while the generator is running. If the 
genset is off because the Mains is available or some other fault have switched 
off the generator this fault shall be inactive.

ii)

HWT & Low fuel: This fault always remains active irrespective of Generator
condition (ON or OFF). 
This fault is also provided with  variable 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 not cleared. Until this fault is cleared the Generator shall not start.
Contacts after the fault conditions:  Immediately after activation of any  
faults the Generator is stopped. The Generator Circuit Breaker contact is 
released, and after 125millsec delay the load is transferred to Mains Supply. 
The hooter is active for 30 second if not reset during this period.
Type of Contacts: All contacts are normally open (NO) type except the 
Mains Circuit breaker contact which is Normally Closed (NC) type. 

1.10

Specifications

 

AC voltage withstand

330 VAC continuously (Phase to neutral)

Measurement Accuracy

1%

Surge 1.2/50Usec

2.5KV

Battery Voltage

Suitable for 12V/24 VDC System

Max. Battery Voltage

35V

DC Interruption time

1 Sec.

Out Put Contact

5 NO

Contact Rating

230V / 6A

Cut out Dimensions

90mm X 90mm

Cat/DCG-6D1I/07-08/03/Ver 1                                                                        Page 9/10

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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