Single-Channel Connection Of Activation Switch - ABB ACS880-104 Hardware Manual

318 The Safe torque off function
￭

Single-channel connection of activation switch

1
2
Note:
• 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.
1 Inverter unit
2 Control unit
K Activation switch
* "OUT1" with frame R5i
OUT
*
+24 V
SGND
IN1
IN2
K