4
vacon • 34
Power cabling
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4.7
Cable installation
•
Before starting, check that none of the components of the AC drive is live. Read the warnings
in chapter 1 carefully
•
Place the motor cables sufficiently far from other cables
•
Avoid placing the motor cables in long parallel lines with other cables.
•
If the motor cables run in parallel with other cables note the minimum distances between
the motor cables and other cables given in table below.
•
The given distances also apply between the motor cables and signal cables of other systems.
•
The
maximum length
for motor cables is
30 m
•
The motor cables should cross other cables at an angle of 90 degrees.
•
If cable insulation checks are needed, see chapter Cable and motor insulation checks.
Start the cable installation according to the instructions below:
Figure 21. Stripping of cables.
Distance between cables, [m]
Shielded cable, [m]
0.3
≤
50
1.0
≤
200
1
Strip the motor and mains cables as recommended below.
Table 15. Cables stripping lengths [mm].
Enclosure
size
A1
B1
C1
D1
C2
D2
E
MU2
8
8
8
20
8
20
Leave as short
as possible
(Cable clamps
are used for
Motor cable
shielding)
MU2
1-phase
7
8
8
20
8
20
MU3
8
8
8
20
8
20
D1
B1
C1
A1
D2
C2
E
D1
B1
C1
A1
MAINS
MOTOR
Earth conductor
Earth conductor
Earth conductor
MAINS
(1-phase)
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