AUX
voltage
(V)
Feed-
in
cable
(m)
Power
ISD
[W]
Cable
length
[m]
Number
of servo
drives
Overall
cable
length
[m]
Overall
power
(cable
losses
included)
[W]
48
25
8
0.5
32
41.0
287.5
8
1.0
32
57.0
293.1
8
2.0
32
89.0
307.1
8
4.0
18
97.0
157.1
8
6.0
12
97.0
101.3
10
0.5
32
41.0
374.0
10
1.0
32
57.0
383.6
10
2.0
32
89.0
414.9
10
4.0
18
97.0
201.9
10
6.0
12
97.0
128.6
13.8
0.5
32
41.0
547.2
13.8
1.0
32
57.0
602.2
13.8
2.0
30
85.0
637.0
48
40
8
0.5
32
56.0
303.4
8
1.0
32
72.0
311.6
8
2.0
30
100.0
299.9
8
4.0
15
100.0
130.5
8
6.0
10
100.0
84.4
10
0.5
32
56.0
406.3
10
1.0
32
72.0
424.3
10
2.0
30
100.0
415.6
10
4.0
15
100.0
167.6
13.8
0.5
31
55.5
644.0
13.8
1.0
30
70.0
650.6
13.8
2.0
27
94.0
633.0
13.8
4.0
15
100.0
243.7
Table 4.13 48 V Auxiliary Supply
The maximum power loss on the cable is 260.4 W when
40 m feed-in cable is used (the servo drives draw 13.8 W
and 27 servo drives are connected with 2 m loop cables).
The nominal power of the servo drives is 27 x 13.8 W
= 372.6 W. The AUX power supply must provide 70% more
than the nominal power.
4.5.2 Communication Topology
The maximum cable lengths are defined in
.
Cable
Maximum length
Feed-in cable
40 m (shielded)
1)
Loop cable
25 m (shielded)
1)
Encoder cable
25 m (shielded)
Brake cable
20 m (shielded)
Fieldbus extension cable
2 m
2)
24/48 V IN connector cable
3 m
Table 4.14 Maximum Cable Lengths
1) Maximum total length for each line: 100 m.
2) Maximum length to next port: 100 m.
4.6 VLT
®
Integrated Servo Drive ISD 510
4.6.1 Motor Selection Considerations
Danfoss offers 128 different servo variants, allowing
selection of the most appropriate servo drive for the
application.
shows the available options. Refer to
chapter 5 Typecode and Selection
and
for the ordering code and a detailed explanation of
the available options.
Motor option
Control
electronics
Servo drive version
•
Torque/speed range
•
Mechanical holding
brake
•
Feedback
•
Shaft seal
•
Fieldbus
•
Standard servo
drive
•
Advanced servo
drive
Table 4.15 Available Options for the Servo Drive
4.6.2 Motor Grounding
To ensure electrical safety, minimize EMC disturbances and
ensure good thermal behavior, the servo drive must be
grounded properly using the following 2 methods:
•
Via the PE wire of the feed-in or loop cable.
•
Via the servo drive flange.
Ensure that the machine frame has a proper electrical
connection to the flange of the servo drive. Use the front
side flange surface. Ensure PE connection on that part of
the machine.
Refer to chapter
chapter 4.3.2.3 Grounding for Electrical
for more information.
System Integration
Design Guide
MG36C102
Danfoss A/S © 08/2017 All rights reserved.
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