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Connecting Your 1394 SERCOS Interface System
Connecting Your Shunt
Module (required for 22 kW
system)
Publication 1394-5.20 — July 2001
The procedures in this section apply to 22 kW system modules and
assume that your shunt module is already mounted. Wiring the shunt
module consists of connecting power from the system module and,
depending on the shunt module you ordered, connecting power to
the fan inside the module.
Required Tools and Equipment
The required tools and equipment are:
•
A small, flathead screwdriver
•
User-supplied power wiring
•
The two fan jumpers that came with your 1394-SR36AF shunt
module.
Wiring the Shunt Module Power
All shunt power wiring should meet the following general
specifications:
•
2
8.4 mm
(8 AWG)
•
105 ° C (221 ° F)
•
600V
•
Maximum length of each wire is 3.05 m (10 ft.).
•
If you mount the shunt module outside the cabinet, the shunt
power cables and fan wiring must be inside metal conduit to
minimize the levels of EMI and RFI.
To minimize the levels of EMI and RFI inside your cabinet, we
recommend you:
•
Use a single cable that contains a twisted pair with an overall
shield. The shunt module is designed to accept a metal conduit
which will also act as an overall shield.
•
Route your shunt power cables with motor power cables.
•
Separate shunt power cables from other sensitive, low voltage
signal lines.
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