Earthing (Grounding) Ip20 Enclosures; Earthing (Grounding) Ip21/54 Enclosures; Motor Connection - Danfoss VLT FC 100 Operating Instructions Manual

Installation
2.4.2.2 Earthing (Grounding) IP20
Enclosures
The frequency converter can be earthed (grounded) using
conduit or shielded cable. For earthing (grounding) of the
power connections, use the dedicated earthing
2 2
(grounding) points as shown in Illustration 2.6.
Illustration 2.5 Earthing (Grounding) Points for IP20 (Chassis)
Enclosures
2.4.2.3 Earthing (Grounding) IP21/54
Enclosures
The frequency converter can be earthed (grounded) using
conduit or shielded cable. For earthing (grounding) of the
power connections, use the dedicated earthing
(grounding) points as shown in Illustration 2.6.
14
®
VLT HVAC Drive D-Frame
Operating Instructions
Illustration 2.6 Earthing (Grounding) for IP21/54 Enclosures.

2.4.3 Motor Connection

WARNING
INDUCED VOLTAGE!
Run output motor cables from multiple frequency
converters 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.
•
•
•
•
•
•
•
®
MG16D202 - VLT is a registered Danfoss trademark
For maximum cable sizes, see 10.1 Power-
dependent Specifications
Comply with local and national electrical codes
for cable sizes
Gland plates are provided at the base of IP21/54
and higher (NEMA1/12) units
Do not install power factor correction capacitors
between the frequency converter and the motor
Do not wire a starting or pole-changing device
between the frequency converter and the motor
Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W)
Earth (ground) the cable in accordance with the
instructions provided