3. Configure the
Pulse every
parameter to the value where you would like to send a pulse. For example, 100 kWh.
4. Configure the
Pulse length
to the required length of the pulse for your external counter. For example, 1 second.
With the example setup the controller sends a 1 second pulse to the external counter for each 100 kWh the controller logs.
10.4.11 Trip AVR
The
Trip AVR
output ensures that excitation is stopped when an alarm activates with a
Trip AVR
alarm action. In cases where there
is high voltage present, stopping the excitation reduce the time required to stop an engine in case of an emergency.
The
Trip AVR
output and alarm action does not initiate a breaker trip. To trip the breaker and the AVR, digital outputs for both actions
must be configured and the correct alarm action must selected. For example, the
Trip b AVR
alarm action.
Inputs and outputs
Assign the
Trip AVR
output under
Configure > Input/output
. Select the hardware module, then select the output to configure.
Function
I/O
Type
Details
[Source] > AVR >
Trip AVR
Digital
output
Continuous
When this output is configured it is possible to assign alarm actions that trip the
AVR.
When an alarm with a
Trip AVR
action activates, the
Trip AVR
digital output
activates and stays activated until all alarms with a
Trip AVR
action are resolved.
When the output is active, the controller pauses AVR regulation.
Table 10.15
Trip AVR sequence diagram
Trip
AVR
(2)
Number of
trip AVR
alarms
(1)
1
0
2
To trip the AVR:
1.
Number of trip AVR alarms
: The number of active
alarms with a
Trip AVR
(or similar) alarm action.
2.
Trip AVR
:
[Source] > AVR > Trip AVR
(digital output).
The controller activates this output until all alarms with
a
Trip AVR
(or similar) alarm action are not active.
10.5 SHAFT generator controller protections
10.5.1 SHAFT generator controller alarms
INFO
These alarms are in addition to the AC protections and other alarms for PPM 300 controllers.
Alarms
Shaft generator
Overspeed (2 alarms on the speed measurement)
Under-speed (2 alarms)
Primary running feedback failure
Voltage or frequency not OK
Magnetic pickup wire break alarm*
Total running hours notification
Trip running hours notification
DESIGNER'S HANDBOOK 4189340911K UK
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