Application Example - Danfoss VLT ISD 510 Design Manual

System Overview

2.7.6 Application Example

2 2
Illustration 2.11 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
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.
1a/1b ISD 510 servo drive on line 1
2a/2b ISD 510 servo drive on line 2
3 Servo Access Box (SAB)
4 Safety device on line 1
5 Line 1 emergency stop button
6 Line 1 safety device contacts
7 Safety device on line 2
Illustration 2.11 Application Example: Safe Torque Off Function with 2 Lines
20
+24 V DC
GND
2
1
3
Danfoss A/S © 08/2017 All rights reserved.
®
VLT Integrated Servo Drive ISD
4
8 Line 2 emergency stop button
9 Line 2 safety device contacts
10 Line 1 hybrid cable
11 Line 2 hybrid cable
12 Feed-in cable
13 Loop cable
14 24 V DC supply
®
510 System
®
Integrated Servo Drive ISD 510
5
X1
X2
6
X1
7
X2
X1
X2
6
X1
X2
8a
8b
9a
9b
MG36C102