Power cabling
vacon • 39
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4
Cables installation:
Tightening torques of cable terminals:
13
•
Pass the cables (supply cable, motor cable, brake cable and I/O cables)
through the pipes and adapters (UL installations) or through the cable
glands (IEC installations) and cable entries.
14
•
Detach the cable clamps and the grounding clamps.
15
Connect the stripped cables:
•
Expose the shield of the motor cable in order to make a 360-degree con-
nection with the cable clamp (reverse the shield over the plastic cover of
the cable and fix all together).
•
Connect the phase conductors of the supply and motor cables into their
respective terminals.
•
Form the rest of the cable shield of both cables into “pigtails” and make a
grounding connection with the clamp. Make the pigtails just long enough
to reach and be fixed to the terminal - no longer.
Table 18. Tightening torques of terminals.
Enclosure
size
Type
Tightening torque
Power and motor
terminals
Tightening torque
EMC grounding
clamps
Tightening torque,
Grounding terminals
[Nm]
lbs-in.
[Nm]
lbs-in.
[Nm]
lbs-in.
MU2
0003 4—0008 4
0004 2—0007 2
0.5—0.6
4.5—5.3
1.5
13.3
2.0
17.7
MU3
0009 4—0016 4
0011 2—0017 2
1.2—1.5 10.6—13.3
1.5
13.3
2.0
17.7
16
•
Check the connection of the earth cable to the motor and the AC drive ter-
minals marked with
.
