Single-Channel Connection; Wiring Examples - ABB ACS530-04 Hardware Manual

Single-channel connection


Drive
Control unit
Notes:
• Both STO inputs (IN1, IN2) must be connected to the activation switch. Otherwise, no SIL/PL
classification is given.
• Pay special attention to avoiding any potential failure modes for the wiring. For example, use shielded
cable. For measures for fault exclusion of wiring, see eg. EN ISO 13849-2:2012, table D.4.

Wiring examples


An example of a Safe torque off wiring with internal +24 V DC power supply is shown
below.
Drive
34 OUT1
OUT2
35
36 SGND
IN1
37
IN2
38
OUT1
+24 V
SGND
IN1
IN2
13 23 31
14 24 32
Safe torque off function 143
Y1 Y2
K
Safety relay
A1 A2
K
Safe PLC
OUT
GND