Rockwell Automation 20M LPM15 Liquid-Cooled Adjustable Frequency AC Drive FRN 2.xxx - Manual (Page 27)

Installation/Wiring 1-15
Determining Input, Motor Output, Ground, and Control Wire Routing for
the Drive
All wiring should be installed in conformance with the applicable local,
national, and international codes (e.g., NEC/CEC). Signal wiring, control
wiring, and power wiring must be routed in separate conduits to prevent
interference with drive operation. Use grommets, when hubs are not
provided, to guard against wire chafing.
Figure 1.1 , Figure 1.2 , and
Figure 1.3 show the wire routing, grounding terminal, and power terminal
strips of the B-frame, C-frame, and D-frame LPM15 drives.
Do not route more than three sets of motor leads through a single conduit.
This will minimize cross-talk that could reduce the effectiveness of noise
reduction methods. If more than three drive/motor connections per conduit
are required, shielded cable must be used. If possible, each conduit should
contain only one set of motor leads.
Grounding the Drive
Use the following steps to ground the drive:
1. Open the door of the enclosure.
2. Run a suitable equipment grounding conductor unbroken from the drive
to the motor’s ground terminal and then to earth ground. For B- and
C-frame drives, use one of the bolts that pass through the drive baseplate
and are used to fasten the drive to the wall or cabinet. For D-frame
drives, use the ground stud provided. See
Figure 1.1 , Figure 1.2 or
Figure 1.3 . Tighten these grounding connections to the proper torque as
shown in Table 1.E .
!
ATTENTION: Do not route signal and control wiring with
power wiring in the same conduit. This can cause interference
with drive operation. Failure to observe this precaution could
result in damage to, or destruction of, the equipment.
!
ATTENTION: Unused wires in conduit must be grounded at
both ends to avoid a possible shock hazard caused by induced
voltages. Also, if a drive sharing a conduit is being serviced or
installed, all drives using this conduit should be disabled to
eliminate the possible shock hazard from cross-coupled motor
leads. Failure to observe these precautions could result in bodily
injury.
!
ATTENTION: The user is responsible for conforming with all
applicable local, national, and international codes. Failure to
observe this precaution could result in damage to, or destruction
of, the equipment.