HONEYWELL CC-PAIH02 51405038-375 module

Some regulators cannot accept a ± voltage trim input, and require a voltage bias signal that is only positive (or negative) in value. In cases such as these the Voltage Bias offset can be used to raise the offset of the voltage bias output to a level, which allows more positive and less positive voltage adjustment around a positive offset voltage. Voltage Bias Offset will affect the rated voltage of the generator at synchronous speed prior to the generator breaker closing. Operating the unit in a test mode and measuring the generator voltage will show the effect the voltage bias offset has on the generator voltage. It is recommended that the voltage adjustment of the automatic voltage regulator be set for the desired rated voltage of the generator with the EGCP-2 not connected.

Before Starting the Generator Set 

Before starting the generator set, configure the tuning set points in the EGCP-2 for values which best match the machines operating and performance characteristics. Double-check these values prior to starting the unit. Verify Proper wiring to the EGCP-2. 

Check the following items for proper polarity and configuration:

 • Power Supply Input • Generator CT Inputs 

• Generator PT Inputs 

• Mains and Bus PT Inputs 

• Magnetic Pickup Input

 • Voltage Bias Output 

• Speed Bias Output Once these items have been checked for proper polarity, check the power supply voltage for proper amplitude. When this is confirmed, apply the power supply to the EGCP-2

With the EGCP-2 powered up

the unit will go through a RAM test, and after a self check period, will display the System Status Screen. If the control fails to power up properly, remove the power supply input and re-check the polarity and amplitude of the voltage feeding the EGCP-2 Control. With the EGCP-2 powered, go to the I/O Status Display in the Status screens. This display shows the state of the various discrete inputs and outputs of the control. Monitor this screen and close the discrete inputs to the EGCP-2 that are being used in this particular application. Verify that the EGCP-2 recognizes these inputs in the I/O Status screen. Verify that the Speed Bias and Voltage Bias outputs are at the proper levels for the devices being used.