Rockwell Automation Publication 6000-IN100A-EN-P - August 2020 33
Chapter 2
Drive Electrical Installation
The installation of all external power cables and control signal wiring is
covered in this chapter. General electrical safety and installation guideline
topics are also included. The basic activities include connecting the system
ground cable, line and motor cables, control power, and all control signal
wiring from the sources to the drive. See Figure 32
, Figure 33 and Figure 34 for
an overview of these connections.
Electrical interconnections are also required between cabinets that have
shipped separately. These are described in Drive Electrical Interconnection
on
page 47.
Safety and Codes
Lockout and tagout the input circuit breaker before performing any electrical
connection work. After the input circuit breaker cabinet doors are opened,
immediately test the outgoing connections and any components that are
connected to medium voltage with a live-line tool (hot stick) while wearing
high-voltage gloves. Pay special attention to any capacitors connected to
medium voltage that can retain a charge for a period of time. Only after the
equipment has been verified as isolated and de-energized can subsequent
work be performed. Even though the input to the drive may be open, it is still
possible for hazardous voltage to be present.
See national and local safety guidelines for detailed procedures on how to
safely isolate the equipment from hazards.
SHOCK HAZARD: Connecting to potentially energized industrial control
equipment can be dangerous. Severe injury or death can result from
electrical shock, burn, or unintended actuation of control equipment.
Hazardous voltages may exist in the cabinet even with the circuit breaker in
the off position. Required practice is to disconnect and lock out control
equipment from power sources, and confirm discharge of stored energy in
capacitors. If it is necessary to work in the vicinity of energized equipment,
the safety related work practices outlined in Electrical Safety requirements
for Employee Work places must be followed. Before attempting any work,
verify the system has been locked out and tested to have no potential.
ATTENTION: The national and local electrical codes outline provisions for
safely installing electrical equipment. Installation must comply with
specifications regarding wire type, conductor sizes, branch circuit
protection, and disconnect devices. Failure to do so may result in personal
injury and/or equipment damage.
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