Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 30)

30 Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
Chapter 2 Installation
Figure 17 - Current Connections for 3-phase Delta Generator with Two CTs
The connections shown in this diagram can be used if only two CTs are available
in the generator circuit. Two CTs can be used only with a three-wire delta
generator. The circuit shown in this diagram can be substituted for the CT
connections shown in Figures
9 , 11 , 14 , and 16 .
Auxiliary Input
The auxiliary input is a +/- 10V DC input. The auxiliary input terminals are on
TB7 and are labeled VREF(+) and VREF(-). SHLD3 is provided for landing the
cable shield. Twisted, shielded cabling is required for the VREF connections.
Remote Excitation Enable Input
The remote excitation enable input is a 24V DC input. The remote excitation
enable input terminals are on TB7 and are labeled EX-D(+) and EX-D(-).
Discrete Outputs
There are two types of discrete outputs: fault relay outputs and redundancy relay
outputs.
G
TB 3
I1 (+) 5A
I1 (-)
I3 (+) 5A
I2 (+) 5A
I2 (-)
I3 (-)
I1 (+) 1A
I2 (+) 1A
I3 (+) 1A
A C
B
Customer Supplied CT
Shorting Switch or Test
Block