ABB ACS180, Hardware Manual, Page: 149 / 168

Multiple ACS180 drives, external power supply
S+
SGND
S1
S2
S+
SGND
S1
S2
S+
SGND
S1
S2
+24 V
24 V DC
– +
K
1
2
1
2
1
2
Drive 1
Control unit 2
Activation switch K
￭ Activation switch
In the wiring diagrams, the activation switch has the designation [K]. This
represents a component such as a manually operated switch, an emergency stop
push button switch, or the contacts of a safety relay or safety PLC.
The Safe torque off function 149