Load sharing outputs from the cgcm unit – Rockwell Automation 1407-CGCM Combination Generator Control Module User Manual

Page 226

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Rockwell Automation Publication 1407-UM001G-EN-P - April 2013

Appendix E

Detailed CGCM Unit Tag Descriptions

• kW_LS_OutV – This tag sets the voltage that the CGCM unit attempts

to output from the load-sharing terminals.

• kVAR_LS_OutV – This tag is reserved for future use.
• LS_FS_V - This tag sets the voltage the load share output reaches when

the generator is producing 1 p.u. kVA. The base for this calculation is the
calculated generator kVA.

• LSRate - This tag configures the time required for the load share output to

change the per unit amount defined above.

• LSLimit - This tag configures the amount of per unit change allowed in

the load share output per unit of time defined below.

• KWAnalogTargetPUValue – The value of this tag is used to provide the

bias to the load share lines when the kW_LS_BridgeEN tag is set to 1.

• KWDigitalTargetPUValue – This tag is reserved for future use.
• KVARAnalogTargetPUValue – This tag is reserved for future use.
• KVARDigitalTargetPUValue – This tag is reserved for future use.

Load Sharing Outputs from the CGCM Unit

• kVAR_LS_Active – This tag is reserved for future use.
• kW_LS_Active - This tag follows the kW_LS_En tag setting in the

Scheduled Write tag.

• LS_Err – This tag reports the load share error that is the difference

between the kW_LS_OutV and the kW_LS InputV.

• kW_LS_InputV – This tag reports the voltage present at the load-sharing

terminals.

• kW_PU_Load - This tag reports the total p.u. kVA being produced by the

active phases of the generator. The base for this calculation is the
configured generator kVA.

• kW_AnalogPU_Load – This tag reports the value of the voltage present

at the load share terminals divided by the configured full scale voltage. It
represents the system per unit load.

• kVAR_LS_InputV -

The product of the RMS magnitude of the reactive

portion of the differential current flowing in the input CT and the
generator terminal voltage is computed. The product is divided by the
rated kVA to determine the reported value for this tag.

• kVAR_PU_Load - This tag reports the total p.u. kVAR being produced by

the active phases of the generator. The base for this calculation is the
configured generator kVA.

• kVAR_AnalogPU_Load – This tag reports the difference between the

KVAR_PU_Load and the kVAR_LS_inputV.

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