Rockwell Automation 1394 SERCOS Interface Multi-Axis Motion Control System Installation Manual User Manual
Page 23

Publication 1394-IN002B-EN-P — February 2004
Installing Your 1394 SERCOS Interface System
1-13
Observe the following guidelines when installing your 1756-MxxSE
SERCOS interface module (refer to Figure 1.8 for zone locations).
•
The clean zone (C) is beneath the less noisy modules (I/O, analog,
encoder, registration, etc. (grey wireway).
•
The dirty zone (D) is above the chassis and below the noisy
modules (black wireway).
•
The SERCOS fiber-optic cables are immune to electrical noise, but
are relatively fragile and best run with other light weight cables.
Figure 1.8
Establishing Noise Zones (ControlLogix)
(1)
EMC
Filter
Spare Slot(s)
Dirty Wireway
Clean Wireway
Route dirty wireways directly above the ControlLogix rack
(shielded by the chassis)
EMC filter/power supply
connections segregated
(not in clean wireway)
Dirty I/O
(24V dc I/O, AC I/O)
Clean I/O
(Analog, Encoder
Registration, etc.)
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