External Set Points; External Analogue Set Point - Deif GPC-3 Designers Reference Handbook

GPC-3 DRH 4189340587 UK
The entire log can be saved in Excel format and used in that particular programme.

4.8 External set points

4.8.1 External analogue set point

The genset can be controlled from internal as well as from external set points. The external set point is activa-
ted with a digital signal, "Ext. GOV set point", but the set point itself is analogue.
The table below shows the possible set points.
Mode
Fixed frequency
Fixed power
Frequency droop
Load sharing
When the input "Ext. GOV set point" is activated, the set point immediately changes from internal set point to
external set point and the regulation acts accordingly. This will give a sudden change in the governor control.
If a more smooth change of the set point is required, the analogue input on the external set point must be
changed stepwise.
Refer to the manual "Description of option D1" for information regarding external AVR control.
If option H2 is available in the unit, the external set points can be controlled from the control
registers in the Modbus protocol. Refer to the manual "Description of option H2" for further in-
formation.
Fixed power cannot go below 0 %, even if your lower limit is negative.
DEIF A/S
Input voltage
+/-10 V DC
+/-10 V DC
+/-10 V DC
+/-10 V DC
Additional functions
Description
fNOM +/-5 Hz
0 % to 100 % *PNOM
fNOM +/-5 Hz
fNOM +/-5 Hz
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