Grounding Ip20 Enclosures; Grounding Ip21/54 Enclosures; Motor Connection - Danfoss VLT AutomationDrive FC 300 Instruction Manual

Installation

2.4.2.2 Grounding IP20 Enclosures

The adjustable frequency drive can be grounded using
conduit or shielded cable. For grounding of the power
connections, use the dedicated grounding points as shown
in Figure 2.6.
Figure 2.5 Grounding Points for IP20 (Chassis) Enclosures

2.4.2.3 Grounding IP21/54 Enclosures

The adjustable frequency drive can be grounded using
conduit or shielded cable. For grounding of the power
connections, use the dedicated grounding points as shown
in Figure 2.6.
®
VLT Automation Drive D-Frame
Instruction Manual
Figure 2.6 Grounding for IP21/54 Enclosures.

2.4.3 Motor Connection

INDUCED VOLTAGE!
Run output motor cables from multiple adjustable
frequency drives separately. Induced voltage from output
motor cables run together can charge equipment
capacitors even with the equipment turned off and locked
out. Failure to run output motor cables separately could
result in death or serious injury.
®
MG34U222 - VLT is a registered Danfoss trademark
WARNING
•
For maximum cable sizes, see 10.1 Power-
dependent Specifications
•
Comply with local and national electrical codes
for cable sizes.
•
Connector plates are provided at the base of
IP21/54 and higher (NEMA1/12) units
•
Do not install power factor correction capacitors
between the adjustable frequency drive and the
motor
•
Do not wire a starting or pole-changing device
between the adjustable frequency drive and the
motor.
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