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ISD Safety Concept
8.6 Application Examples
The figure shows an example of an installation for 2 lines,
which can be put in safe stop mode by separate safety
circuits. The safety switch devices must be selected by the
user in accordance with the requirements.
The figure shows a layout with separate safety circuits for
lines 1 and 2. The safety circuits may be remote from each
+DC 24 V
-DC 24 V
10
Illustration 8.2 Application Example: Safe Stop Function with 2 Lines
1a/1b
ISD 410 servo drive on line 1
2a/2b
ISD 410 servo drive on line 2
3
Connection box
4
Safety device on line 1
5
Line 1 emergency stop button
6
Safety device on line 2
7
Line 2 emergency stop button
8
Line 1 hybrid cable (short-circuit proof)
9
Line 2 hybrid cable (short-circuit proof)
10
24 V DC power supply
Table 8.3 Legend to Illustration 8.2
®
VLT
ISD 410 Servomotor Operating Instructions
other. Note that the 2 lines in the example are controlled
separately. If the safe stop function is triggered on line 1,
line 2 remains in normal operation. The servomotors on
this line are not affected. There may still be a hazard from
the servomotors on line 2.
5
4
7
6
®
MG75D102 - VLT
is a registered Danfoss trademark
+DC 300 V
-DC 300 V
3
8
DC 24 V
-DC 300 V
+DC 300 V
9
DC 24 V
-DC 300 V
+DC 300 V
4
1
3
3
1a
1
4
4
1
3
3
1b
1
4
4
1
3
3
2a
1
4
4
1
3
3
2b
1
4
31
8
8
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