DIGIVEX Little Drive Servoamplifier
41
PVD 3530 GB 01/2005
4.5 Connecting Servomotors
4.5.1 Power cable definition
Attention!
Only use copper core cables
The motor / drive power connection cables will have as a minimum:
three isolated conductors connected to phases U, V, W. Cross-sections as in the table on the
next page.
1 earth conductor (green and yellow).
2 twisted and shielded pairs for connection of the motor thermal protection. Cross-section in the
order of 1mm².
2 twisted and shielded pairs for connection of the holding brake (if present). Cross-section in the
order of 1mm².
Power cable cross-section
The cross-sections given are for copper conductors.
The cable cross-sections given in the table below take account of:
The rated drive current.
The motor / drive distance, service voltage loss = RI.
The ambient temperature, cable Joule losses = RI².
the standardized increase in cable sections.
The cable section to be used is given in the table below
Distance
Î
0m
50m 50m
120m
DIGIVEX rating
Copper cable cross-section in
mm²
Copper cable cross-section in
mm²
2/4 and 4/8
0.5
1
7.5/15 1
2
Use for standard lengths
Normal
L
≤
20 m
20 < L
≤
30m
30 < L
≤
50m
L
> 50m
Copper
cable
length Shielded
L
≤
15 m
15 < L
≤
20 m 20 < L
≤
50 m
L
> 50m
2/4 – 4/8
-
DSF01
DSF01
See table
below
7.5/15 - -
DSF01
See table
below
•
DSF01: three inductances of 50 mH weakened to rise on rail DIN
•
For lengths superior to 50 m, consult us.
This manual was downloaded on www.sdsdrives.com
+44 (0)117 938 1800 - [email protected]
