Connecting The Motor; Grounding The Cable Shield - Danfoss VLT FC 102 Operating Manual

VLT HVAC Drive FC 102
Operating Guide
Illustration 11: Access to Wiring for IP55 and IP66 Enclosures
Before tightening the screws, refer to
Table 5: Tightening Torques for Covers
Enclosure
(1)
A4/A5
B1/B2
C1/C2
No screws to tighten for A2/A3/B3/B4/C3/C4.
1

4.6 Connecting the Motor

INDUCED VOLTAGE
Induced voltage from output motor cables that run together can charge equipment capacitors, even with the equipment turned
off and locked out/tagged out. Failure to run output motor cables separately, or to use shielded cables, could result in death or
serious injury.
-
Run output motor cables separately or use shielded cables.
-
Simultaneously lock out/tag out all the drives.
• Run output separately or
• Use shielded cables.
• Comply with local and national electrical codes for cable sizes. For maximum wire sizes, see
3x115Y/200–139Y/240 V
• Follow motor manufacturer wiring requirements.
• Motor wiring knockouts or access panels are provided at the base of IP21 (NEMA 1/12) and higher units.
• Do not wire a starting or pole-changing device (for example a Dahlander motor or slip ring asynchronous motor) between the
drive and the motor.

4.6.1 Grounding the Cable Shield

Procedure
1. Strip a section of the outer cable insulation.
Danfoss A/S © 2023.09
Table 5.
IP55 [Nm (in-lbs)]
2 (18)
2.2 (19)
2.2 (19)
W A R N I N G
to 8.4 Electrical Data, 525–690
IP66 [Nm (in-lbs)]
2 (18)
2.2 (19)
2.2 (19)
V.
Electrical Installation
8.1 Electrical Data, 200–240 V and
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