Rockwell Automation 7703E Medium Voltage SMC OEM Components - 10-15 kV User Manual
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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
for the location of the connector on the
interface board, and
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.