Basic Wiring Requirements; Routing The Power And Signal Cables - Allen-Bradley 8720MC-RPS065 User Manual

Chapter 5 Connect the 8720MC-RPS Unit

Basic Wiring Requirements

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This section contains basic wiring information for the 8720MC-RPS units and
accessories.
ATTENTION: Plan the installation of your system so that you can perform all
cutting, drilling, tapping, and welding with the system removed from the
enclosure. Because the system is of the open type construction, be careful to
keep metal debris from falling into it. Metal debris or other foreign matter
can become lodged in the circuitry and result in damage to components.
SHOCK HAZARD: To avoid hazard of electrical shock, perform all mounting
and wiring of the Bulletin 2198 drive modules prior to applying power. Once
power is applied, connector terminals can have voltage present even when
not in use.
IMPORTANT This section contains common PWM servo system wiring configurations,
size, and practices that can be used in a majority of applications. National
Electrical Code, local electrical codes, special operating temperatures, duty
cycles, or system configurations take precedence over the values and
methods provided.

Routing the Power and Signal Cables

Be aware that when you route power and signal wiring on a machine or system,
radiated noise from nearby relays, transformers, and other electronic devices
can be induced into I/O communication, or other sensitive low voltage signals.
This can cause system faults and communication anomalies.
• The Bulletin 2090 single motor cable contains the power, brake, and
feedback wires, but is properly shielded to protect the noise-sensitive
feedback signals.
• Separate the sequence control signal wiring from the power wiring, and
do not put both into a same duct. Also, do not route both wires in
parallel.
Refer to Electrical Noise Reduction
and low voltage cables in wireways. Refer to the System Design for Control of
Electrical Noise Reference Manual, publication GMC-RM001, for more
information.
Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
on page 19 for examples of routing high