Access; Motor Connection - Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

Electrical Installation
NOTICE!
EMC INTERFERENCE
Run cables for input power, motor wiring and control
wiring in 3 separate metallic conduits. Failure to isolate
power, motor, and control cables can result in
unintended behaviour or reduced performance.
4 4
Minimum clearance requirement between power, motor
and control cables is 200 mm (7.9 in).

4.5 Access

•
Remove the cover with a screw driver (See
Figure 4.3) or by loosening the attaching screws
(See Figure 4.4).
Figure 4.3 Access to Wiring for IP20 and IP21 Enclosures
Figure 4.4 Access to Wiring for IP55 and IP66 Enclosures
18
®
VLT AQUA Drive FC 202
Tighten the cover screws using the tightening torques
specified in Table 4.1.
No screws to tighten for A2/A3/B3/B4/C3/C4.
Table 4.1 Tightening Torques for Covers [Nm]

4.6 Motor Connection

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 or
metal conduits could result in death or serious injury.
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•
•
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•
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Procedure
1.
2.
3.
4.
5.
Danfoss A/S © 01/2015 All rights reserved.
Enclosure IP55
A4/A5 2
B1/B2 2.2
C1/C2 2.2
WARNING
Run output motor cables separately, or
Use screened cables or metal conduits
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
(e.g. Dahlander motor or slip ring induction
motor) between the frequency converter and the
motor.
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 Figure 4.5.
Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), see Figure 4.5.
Tighten the terminals in accordance with the
information provided in chapter 8.7 Connection
Tightening Torques.
IP66
2
2.2
2.2
MG20MC22