Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 225)

Rockwell Automation Publication 1407-UM001G-EN-P - April 2013 225
Detailed CGCM Unit Tag Descriptions Appendix E
• PhMatch - This tag reports that the phase difference between the two
busses is within the configured acceptable range.
• V_MatchErr – This tag reports the percentage difference in voltage
between the two busses to be synchronized.
• FreqMatchErr – This tag reports the difference in frequency between the
two busses to be synchronized.
• PhMatchErr – This tag reports the phase difference between the two
busses to be synchronized.
• CloseBusA_Brkr – When this tag is 1, it indicates that synchronization
has reached a status where it is acceptable to close the breaker to Bus A.
• CloseBusB_Brkr – When this tag is 1, it indicates that synchronization
has reached a status where it is acceptable to close the breaker to Bus B.
• Raise_V – This tag indicates to the host Logix controller that the
synchronizing bus has a lower voltage level than that of the reference bus.
• Lower_V – This tag indicates to the host Logix controller that the
synchronizing bus has a lower voltage level than that of the reference bus.
• Raise_Freq - This tag indicates to the host Logix controller that the
synchronizing bus is producing voltage at a frequency lower than that of
the reference bus.
• Lower_Freq - This tag indicates to the host Logix controller that the
synchronizing bus is producing voltage at a frequency higher than that of
the reference bus
• Raise_Ph - This tag indicates to the host Logix controller that the
synchronizing bus is producing a voltage that is between 0 and 180 degrees
behind the reference bus.
• Lower_Ph - This tag indicates to the host Logix controller that the
synchronizing bus is producing a voltage that is between 0 and 180 degrees
ahead of the reference bus.
• ActiveBusA_B – This tag provides feedback as to which reference bus is
being monitored.
Load Sharing This section describes the load sharing inputs and outputs for the CGCM unit.
Load Sharing Inputs to the CGCM Unit
• kVAR_LS_BridgeEn – This tag is reserved for future use.
• kVAR_LS_En – This tag is reserved for future use: must be set to 1 in
conjunction with kW-LS-EN tag in Rev. 2.x.
• kW_LS_BridgeEn – When this tag is set to 1, the CGCM unit uses the
value of kw_AnalogTargetPUValue as the kW Load Share setpoint to
provide appropriate bias to the analog units connected to the LS lines.
• kW_LS-EN -When this tag is set to 1 the CGCM unit enables the
kilowatt load share function.