Connecting To Ground - Danfoss FC 102 Operating Manual

Electrical Installation

5.6 Connecting to Ground

WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
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Ensure the correct grounding of the equipment by a certified electrical installer.
For electrical safety
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Ground the drive in accordance with applicable standards and directives.
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Use a dedicated ground wire for input power, motor power, and control wiring.
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Do not ground 1 drive to another in a daisy chain fashion.
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Keep the ground wire connections as short as possible.
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Follow motor manufacturer wiring requirements.
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Minimum cable cross-section: 10 mm
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Tighten the terminals in accordance with the information provided in chapter 9.10.1 Fastener Torque Ratings.
For EMC-compliant installation
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Establish electrical contact between the cable shield and the drive enclosure by using metal cable glands or by
using the clamps provided on the equipment.
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Reduce burst transient by using high-strand wire.
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Do not use pigtails.
NOTICE
POTENTIAL EQUALIZATION
There is a risk of burst transient when the ground potential between the drive and the control system is different.
Install equalizing cables between the system components. Recommended cable cross-section: 16 mm
MG16O102
Operating Guide
2 (6 AWG) (or 2 rated ground wires terminated separately).
Danfoss A/S © 01/2017 All rights reserved.
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2 (5 AWG).
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