Access; Motor Connection - Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual

Electrical Installation

4.5 Access

All terminals to the control cables are located underneath
the LCP on the inside of the frequency converter. To
access, open the door (IP21/54) or remove the front panel
(IP20).

4.6 Motor Connection

WARNING
4 4
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 use screened cables
could result in death or serious injury.
•
Comply with local and national electrical codes
for cable sizes. For maximum wire sizes see
chapter 8.1 Electrical Data.
•
Follow motor manufacturer wiring requirements.
•
Motor wiring knockouts or access panels are
provided at the base of IP21 (NEMA1/12) and
higher units.
•
Do not wire a starting or pole-changing device
(for example Dahlander motor or slip ring
induction motor) between the frequency
converter and the motor.
14
VLT® AutomationDrive FC 302
Procedure
1.
2.
3.
4.
5.
Illustration 4.3 Motor Connection
Danfoss A/S © 06/2015 All rights reserved.
Strip a section of the outer cable insulation.
Position the stripped wire under the cable clamp
to establish mechanical fixation and electrical
contact between the cable screen and ground.
Connect the ground wire to the nearest
grounding terminal in accordance with the
grounding instructions provided in
chapter 4.3 Grounding, see Illustration 4.3.
Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), see Illustration 4.3.
Tighten the terminals in accordance with the
information provided in chapter 8.8 Connection
Tightening Torques.
MG34U402