Routing high and low voltage cables, Routing high and low voltage cables -5 – Rockwell Automation 2098-IPD-xxx Ultra5000 Intelligent Positioning Drives Installation Manual User Manual
Page 65

Publication 2098-IN001E-EN-P — April 2002
Connecting Your Ultra5000
3-5
Routing High and Low Voltage Cables
Be aware that when you connect and route power and signal wiring
on a machine or system, radiated noise from nearby relays (relay coils
should have surge suppressors), transformers, and other electronic
drives, can be induced into motor or encoder feedback,
communications, or other sensitive low voltage signals. This can cause
system faults and communication problems. To minimize the levels of
radiated noise, route machine power and signal lines separately.
Figure 3.3
Routing Power and Signal Cables Inside Your Cabinet
PWR
PWR
PWR
PWR
Maximize distance between high and low
voltage cables on parallel runs
Do not run low
and high
voltage wires
in the same
wireway
120/240V
AC power
Low voltage
communications
control I/O wiring
motor feedback
cables
Always cross
high and low
voltage
conductors at
90° angles
Always separate all low voltage signal
wiring from high voltage power wiring to
reduce affects of EMI and RFI.
Unshielded
conductors
Minimize unshielded
lead length
Motor power
cables
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