Manual Governor Control; Manual Governor Control From An Aop; 4420 Wire Failure Vdo Input - Deif Multi-line 2 Designers Reference Handbook

AGC
The governor can be given increase and decrease signals with digital inputs. The inputs can be
used in manual mode and in semi-auto mode.
Manual mode
In manual mode the regulation is switched off. The output of the regulator will therefore not
change depending on the load or frequency. The output will only change, if the manual up or
manual down input is activated.
Semi-auto mode
In semi-auto mode the regulator is active, and the frequency or power is controlled according to
the actual setpoint. If semi-auto is selected, the regulation is switched off when either the
manual increase or decrease input is activated. Now an offset can be given to the frequency or
power depending on the operation.
The regulation is activated as soon as the manual increase or manual decrease input is
deactivated. This can be used during commissioning of the gen-set.
This function does not change the set point of the controller. It only gives an
offset to the controller when the manual input is ON.
If option D1 is selected, then the AVR can also be controlled similar to the
governor control.
It is possible to make a pulse control of the governor when the AOP is connected. Commands
for increase and decrease can be configured for any of the eight push-buttons on the AOP.
When the button for either increase or decrease is pushed, then the AGC will perform the
command for 5 seconds. When the button is pushed within the 5 seconds period, then the
command is reset, and the manual increase or decrease will stop.
Manual mode
In manual mode the regulation is switched off. The output of the regulator will therefore not
change depending on the load or frequency. The output will only change, if the manual up or
manual down button on the AOP is activated.
Semi-auto mode
In semi-auto mode the regulator is active, and the frequency or power will be controlled
according to the actual setpoint. If semi-auto is selected, the regulation is switched off when
either the manual increase or decrease button on the AOP is activated. Now an offset can be
given to the frequency or power depending on the operation.
The regulation is activated after 5 seconds or when the increase/decrease button is pushed
again within 5 seconds.
See the M-logic Manual for details.
If option D1 is selected, then the AVR can also be controlled from the AOP
similar to the governor control.
DEIF A/S

Manual governor control

Manual governor control from an AOP

Designer's Reference Handbook
Page 107 of 168