Rockwell Automation 7703E Medium Voltage SMC OEM Components - 10-15 kV - Manual (Page 32)

32 Rockwell Automation Publication 7703E-IN001E-EN-P - July 2014
Chapter 4 Control Component Installation
Table 7 - Terminal Descriptions
Note: The OFF state leakage current for a solid-state device connected to an
SMC Flex input must be less than 6 mA.
Connecting Interface Board
to Voltage Sensing Board Use the wire harness provided to connect the Voltage Sensing Board and the
Interface Board. Refer to
Figure 14 for the location of the connector on the
interface board, and Figure 8 on page 22 for the connector on the voltage sensing
board.
Terminal Number Description Terminal Number Description
11 Control Power Input C 23 PTC Input
12 Control Power Common C 24 PTC Input
13 Control Enable Input
(1)
25 Tach Input ( - )
14 Control Module Ground 26 Tach Input ( + )
15 Option Input #2 27 Ground Fault Transformer Input
16 Option Input #1 28 Ground Fault Transformer Input
17 Start Input 29 Aux. Contact #2
18 Stop Input 30 Aux. Contact #2
19 Aux. Contact #1 (Ext. Bypass)
(2)
31 Aux. Contact #3
20 Aux. Contact #1 (Ext. Bypass) 32 Aux. Contact #3
21 Not Used 33 Aux. Contact #4 (Normal) (3) (4)
22 Not Used 34 Aux. Contact #4 (Normal)
(1) Do not connect any additional loads to these terminals. These “parasitic” loads may cause problems with operation, which may result in false starting and stopping.
(2) Aux. Contact #1 is always programmed for Ext. Bypass (N.O.) to control the bypass contactor in MV applications.
(3) Aux. Contact #4 is always programmed for “Normal” (N.O.) to control the isolation contactor in MV applications.
(4) RC snubbers are required on inductive loads connected to auxiliary.