Rockwell Automation MV SMC Flex OEM Components User Manual
Page 36
 
5-4
Control Component Installation
1503E-IN001E-EN-P – June 2013
Use the wire harness provided to connect the Voltage Sensing Board 
and the Interface Board. Refer to Figure 5.2 for the location of the 
connector on the interface board, and Figure 4.8 for the connector on 
the voltage sensing board. 
1) Use the fiber optic cables (Cat. No. 1503E-XXFOXX) to connect
each fiber optic receiver from the gate driver boards to the 
interface board (refer to Figure 5.2). Ensure that the gate driver 
boards of each power phase are connected to the correct terminals 
on the Interface Board. Observe the minimum bend radius of at 
least 45 mm (1.75 in.) for the fiber optic cables. 
A T T E N T I O N
A T T E N T I O N
Do not sharply bend or strike the fiber optic 
cables when handling them. A minimum bend 
radius of at least 45 mm (1.75 in.) should be 
maintained throughout the system. Damaging 
the cables may result in signal loss to the 
components and improper functioning of the 
unit. 
Fiber optic components are color coded for 
easier connections. Receiver terminals are dark 
blue, and transmitter terminals are grey or black. 
The cables have a grey connector at one end and 
a blue one at the other. When connecting to the 
gate driver boards, the dark blue connector must 
plug into the dark blue receiver and the grey 
connector must plug into the black transmitter 
Refer to the appropriate wiring diagram in Chapter 7.
It is acceptable to connect the fiber optic 
transmitter cables to any port within a particular 
power phase. Note that the cables for the 
temperature feedback ports should be connected 
to the correct phase. Refer to Figure 5.2 for the 
Interface Board layout. 
 
2) Connect the temperature feedback fiber optic receivers for each 
phase to the appropriate gate driver board. Refer to Chapter 7 for 
the appropriate diagram for the temperature feedback fiber optic 
connections. 
Connecting Interface Board
to Voltage Sensing Board
Connecting Interface Board
to Gate Driver Board
I M P O R T A N T
I M P O R T A N T
I M P O R T A N T
I M P O R T A N T