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Manual 37259C
SPM-D11 - Synchronizing Unit
Page 26/79
© Woodward
Mains Parallel Operation
In mains parallel operation both circuit breakers are closed and the real power and the power factor cos phi are
controlled to the configured set point values, provided that the controllers are configured to enabled. If the pa-
rameter "terminal 6 = Release control" is set, terminal 6 must also be energized, so that the controllers operate.
Selection of the power set point value
•
If the generator is connected in parallel with the mains via the CB, initially a partial load is assumed.
•
When the partial load pre-run is completed (or deactivated) the following table is valid for the selection of the
power set point mode:
Parameter
"Terminal 6"
Condition
"Terminal 6"
Parameter
"Power set point ex-
ternal"
active set point value
ON
External: via 0 to 20 mA
Release control
x
OFF
Internal: Power controller Pset2
ON
External: via 0 to 20 mA
1
OFF
Internal: Power controller Pset2
Set point power
0
x
Internal: Power controller Pset1
0: "OFF" / 1: "ON" / x: Signal of no significance (0 or 1)
Table 4-4: Power set point modes
•
If an external signal has been selected for the parameter "Power set point external", the correct signal type
must be selected on the following configuration screen.
•
The power set point upper limit must be configured as the value "Power controller P max"
•
The power set point lower limit must be configured as the value "Power controller P min"
•
The power set point has a configurable ramp rate. This slope can be configured in the parameter "Power c
troller Ramp".
on-
Shutdown
If the parameter "Download and open GCB" has been configured as "ON", the controller can be configured to
perform a shutdown function in the following manner:
•
Terminal 3 "Enable CB" is re-energized, initiating the shutdown
•
The power will be reduced
•
When the real power falls below 10 % of the generator rated power, the relay "Command: open CB" will
open