Inputs And Outputs; Digital Inputs - Deif SGC 420 User Manual

9. Inputs and outputs

9.1

Digital inputs

No. Source
1 Not used
2 User configured
3 Low fuel level switch
4 Low lube oil pressure switch
5 High engine coolant temp switch
6 Low water level switch
7 Emergency stop
8 Remote start/stop
9 Manual start
10 Manual stop
11 Activate/deactivate AUTO mode
12 Close gen/open mains switch
13 Close mains/open gen switch
14 Simulate mains
User manual 4189341341B EN
Description
The digital input is not used.
The digital input is configured by the user.
The input is activated when the fuel level is less than the configured value.
The configured alarm is shown. You can configure the alarm type.
The input is activated when the lube oil pressure is less than the configured
value. The configured alarm is shown. You can configure the alarm type.
The input is activated when the engine coolant temperature is more than
the configured value. The configured alarm is shown. You can configure the
alarm type.
The input is activated when the water level is less than the configured
value. The configured alarm is shown. You can configure the alarm type.
When this input is activated, the controller stops the genset immediately
without a cool down period.
This input initiates the start or stop sequence of the genset when the
controller is in AUTO mode.
This input initiates the start sequence of the genset when the controller is
in manual mode.
This input initiates the stop sequence of the genset when the controller is
in manual mode.
One of these sequences is initiated if this input is activated in manual
mode:
1. Mains monitoring is enabled and there is a mains failure. The operator
activates AUTO mode. The controller then automatically initiates the
genset start sequence and closes the genset breaker.
2. Mains monitoring is enabled and the mains can supply the load. The
operator deactivates AUTO mode. The controller then automatically
stops the genset and closes the mains breaker.
3. Mains monitoring is enabled and the mains can supply the load. The
operator activates AUTO mode. The controller then automatically stops
the genset.
The genset breaker closes and the mains breaker opens when this input is
activated. The genset must be running.
The genset breaker opens and the mains breaker closes when this input is
activated. The genset must be running.
In AUTO mode:
• Mains monitoring is enabled and there is a mains failure. The input is
activated and used to simulate the return of the mains and the mains
breaker closing.
• Mains monitoring is enabled and there is a mains failure. The input is
deactivated. The controller automatically starts the genset and closes
the genset breaker.
In manual mode:
• Mains monitoring is enabled and there is a mains failure. The input is
activated and used to simulate the return of the mains and the mains
breaker closing.
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