Connecting Servomotors; Power Cable Definition - SSD Parvex DIGIVEX Little Drive Servoamplifier User And Commissioning Manual

DIGIVEX Little Drive Servoamplifier

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
DIGIVEX rating
2/4 and 4/8
7.5/15
Use for standard lengths
Copper Normal
cable
Shielded
length
2/4 – 4/8
7.5/15
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0m
Copper cable cross-section in
mm²
0.5
1
L ≤ 20 m 20 < L ≤ 30m
L ≤ 15 m 15 < L ≤ 20 m
-
-
•
DSF01: three inductances of 50 mH weakened to rise on rail DIN
•
For lengths superior to 50 m, consult us.
PVD 3530 GB 01/2005
50m 50m
Copper cable cross-section in
30 < L ≤ 50m
20 < L ≤ 50 m
DSF01 DSF01
- DSF01
41
120m
mm²
1
2
L > 50m
L > 50m
See table
below
See table
below