Woodward EGCP-2 - Page 103

Manual 26174 EGCP-2 Engine Generator Control Package
Woodward 93
Unload Time
 Time in seconds for generator to unload from base load level to unload trip
level. This ramp rate is applied during any automatic unload functions,
including ramping from load sharing.
 Example: Unload Time = 10 seconds
o Base Load Ref = 200 kW
o Unload Trip = 25 kW
o The difference is 175 kW
o The EGCP-2 will ramp 175 kW in 10 seconds
o This breaks down to 17.5 kW per second
Remember, if the Base Load Ref or Unload Trip is changed, it will affect the
ramping rate when unloading.
Raise Load Rate
 Percent Load per Second ramp rate used when the Raise Load input
(Discrete Input #6) or Modbus address AW40300 is used during base load
operation.
Lower Load Rate
 Percent per Second Ramp Rate used when the Load Lower input (Discrete
Input #7) or Modbus address AW40300 is used in base load operation.
KW Load High Limit
 Maximum allowed load while operating in Base load or Process control
modes.
 Prevents overload of unit when in Base load or Process control modes.
KW High Limit Alarm
 Sets Alarm Action when unit is at or above High Load Limit.
 Active during all load control operations.
 Unit will not exceed High Limit set point when operating in Base Load or
Process Control Modes.
KW Load Low Limit
 Active during all load control operations.
 Sets alarm mode when unit is at or below Gen Low Load Limit.
 Minimum allowed load while operating in Base load or Process control
modes.
 Prevents reverse current of unit.
KW Low Limit Alarm
 Sets Alarm Action when unit is at or below Low Load Limit.
 Active during all load control operations.
KVA Switch Low
 Sets level, which when exceeded, will cause the kVA relay output to
energize. Only applicable for units with the relay#12 function configured for
kVA Load Switch.