YOKOGAWA PW301 motor module

Load Control Mode 

• Normal o Standard setting for load control and VAR/PF functions.

 • Soft Transfer o Unit will issue mains breaker open command while in process control if process reference is reached, or while in base load and base load reference is reached. o The Test input (Discrete Input #2) must be closed to activate this feature.

 • Droop o Manual Load and Voltage Control o Used primarily for commissioning. Load Control Gain 

• Sets gain response of load control. 

• Active in load ramping and base load operations. Load Share Gain 

• Sets gain response of proportional load sharing. 

• Active in load sharing operations. Load Stability 

• Sets Stability response of load control. 

• Active in load ramping and base load operations.

Load Control Filter

 • Low Pass Filter used to attenuate higher frequency transients for better stability. 

• Active in proportional load sharing, load ramping, and base load control modes. 

• Higher values of filter will tend to make the unit more responsive to small, rapid transients. 

•Lower values of filter will tend to make the unit less responsive to small, rapid transients. Base Load Reference 

• Load Level that Generator will automatically ramp to when operating in Base Load.

 • Must be set to a greater value than the Unload Trip Level

Unload Trip

 • Load Level where Generator Breaker/Contactor open command will be issued when EGCP-2 control is off loading generator set. 

• Must be set less than the Baseload Load Reference value. Load Droop

 • Percentage of kW droop used when EGCP-2 control is operating in a droop mode. Load Time 

• Time in seconds for generator to load from unload trip level to base load level. This rate is applied during any automatic loading function, including ramping to load sharing. 

• The Load Time is bypassed if the EGCP-2s system load is 100% or greater. 

• Example: Load 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 loading