Rockwell Automation 7703E Medium Voltage SMC OEM Components - 10-15 kV - Manual (Page 34)

34 Rockwell Automation Publication 7703E-IN001E-EN-P - July 2014
Chapter 4 Control Component Installation
Table 8 - Fiber Optic Multiplexer Board Specifications
1. Use the fiber optic cables (Cat. No. 7703E-XXFOXX) to connect each
fiber optic receiver from the gate driver boards to the fiber optic
multiplexer board (refer to
Figure 16 and Figure 17 ). Ensure that the gate
driver boards of each power phase are connected to the correct terminals
on the fiber optic multiplexer board. Observe the minimum bend radius of
at least 45 mm (1.75 in.) for the fiber optic cables.
Refer to the appropriate wiring diagram in Chapter 6 .
2. Connect a single fiber optic cable between the interface board transmitter
(one per phase) to the corresponding receiver on the fiber optic
multiplexer board.
3. Connect the temperature feedback fiber optic receivers for each phase
from the interface board to the appropriate gate driver board transmitter.
Refer to
Chapter 6 for the appropriate diagram for the temperature
feedback fiber optic connections.
Additional Control
Components Additional control components are required to complete the circuit, depending
on the application. Some of these control components are outlined in
Chapter 5
and Appendix B .
It is the responsibility of the OEM to ensure that all required power and control
components are supplied and functional.
Control Voltage 110/120V…220/240V at 50/60 Hz, 30 VA
Gate Drive (In/Out) Via Fiber Optics
ATTENTION: 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.
IMPORTANT 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 grey or black transmitter.
IMPORTANT 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 14 for the
Interface Board layout.