2.7.6 Application Example
shows an example of an installation for 2 lines that can be put in Safe Torque Off mode by separate safety
circuits for each line.
The safety circuits may be remote from each other and are not supplied from the VLT
®
Integrated Servo Drive ISD 510
System.
The 2 lines in the example are controlled separately. If the Safe Torque Off function is triggered on line 1, line 2 remains in
normal operation and the servo drives on this line are not affected. There may still be a hazard from the servo drives on
line 2.
Select the safety switch devices in accordance with the requirements of the application.
+24 V DC
GND
130BE689.11
8a
8b
9a
9b
4
2
3
1
X1
X2
X1
X2
X1
X2
X1
X2
6
6
7
5
1a/1b
ISD 510 servo drive on line 1
8
Line 2 emergency stop button
2a/2b
ISD 510 servo drive on line 2
9
Line 2 safety device contacts
3
Servo Access Box (SAB)
10
Line 1 hybrid cable
4
Safety device on line 1
11
Line 2 hybrid cable
5
Line 1 emergency stop button
12
Feed-in cable
6
Line 1 safety device contacts
13
Loop cable
7
Safety device on line 2
14
24 V DC supply
Illustration 2.11 Application Example: Safe Torque Off Function with 2 Lines
System Overview
VLT
®
Integrated Servo Drive ISD
®
510 System
20
Danfoss A/S © 08/2017 All rights reserved.
MG36C102
2
2
