Rockwell Automation LPM20 Liquid-Cooled AC Drive with High Performance Drive Control - Manual (Page 25)

Installation/Wiring 1-13
Verifying the Drive’s Watts Loss Rating
When mounting the drive inside of an enclosure, you should determine the
watts loss rating of the drive from
Table 1.A . This table lists the typical full
load power loss watts value at 2 kHz (rated carrier frequency). Ensure that
the enclosure is adequately ventilated with 0
°
to 40
°
C ambient air based on
the drive’s watts loss rating.
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 1.5 and Figure 1.6 show the
wire routing, grounding terminal, and power terminal strips of LPM20
drives with High Performance Drive Control.
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.
!
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.