Connecting The Motor; Grounding The Cable Shield - Danfoss VLT AutomationDrive FC 301 Operating Manual

VLT® AutomationDrive FC 301/FC 302
Operating Guide

4.5 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. 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 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
• 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.

4.5.1 Grounding the Cable Shield

Procedure
1.
Strip a section of the outer cable insulation.
2. Position the stripped wire under the cable clamp to esatblish mechanical fixation and electrical contact between the cable
shield and ground.
3. Connect the ground wire to the nearest grounding terminal in accordance with the grounding instructions, see
Grounding.
4. Connect the 3-phase motor wiring to terminals 96 (U), 97 (V), and 98 (W).
5. Torque-tighten the terminals, see
Example
Mains input, motor, and grounding for basic drives. Actual configurations vary with unit types and optional equipment.
18 | Danfoss A/S © 2021.01
W A R N I N G
8.8 Connection Tightening Torques.
Electrical Installation
Table 29 to Table 40.
4.3
AQ267037727118en-000101 / 130R0300