Power wiring, Power wiring -23 – Rockwell Automation 20M LPM15 Liquid-Cooled Adjustable Frequency AC Drive FRN 2.xxx User Manual

Page 35

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Installation/Wiring

1-23

2. Connect the three-phase AC power motor leads to the appropriate output

terminals.

Figure 1.1

,

Figure 1.2

, or

Figure 1.3

show the locations of the

output power terminals.

3. Tighten the three-phase AC output power terminals to the proper torque

as shown in

Table 1.E

.

Power Wiring

Cable Types Acceptable for 200-600 Volt Installations

A variety of cable types are acceptable for drive installations. For many
installations, unshielded cable is adequate, provided it can be separated
from sensitive circuits. As an approximate guide, allow a spacing of 0.3
meters (1 foot) for every 10 meters (32.8 feet) of length. In all cases, long
parallel runs must be avoided. Do not use cable with an insulation thickness
less than or equal to 15 mils (0.4mm/0.015 in.). Use Copper wire only. Wire
gauge requirements and recommendations are based on 75 degrees C. Do
not reduce wire gauge when using higher temperature wire.

Unshielded

THHN, THWN or similar wire is acceptable for drive installation in dry
environments provided adequate free air space and/or conduit fill rates
limits are provided. Do not use THHN or similarly coated wire in wet
areas
. Any wire chosen must have a minimum insulation thickness of 15
mils and should not have large variations in insulation concentricity.

!

ATTENTION: National Codes and standards (NEC, VDE,
BSI etc.) and local codes outline provisions for safely installing
electrical equipment. Installation must comply with
specifications regarding wire types, conductor sizes, branch
circuit protection, and disconnect devices. Failure to do so may
result in personal injury and/or equipment damage.

!

ATTENTION: To avoid a possible shock hazard caused by
induced voltages, unused wires in the conduit must be grounded
at both ends. For the same reason, if a drive sharing a conduit is
being serviced or installed, all drives using this conduit should
be disabled. This will help minimize the possible shock hazard
from “cross coupled” motor leads.

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