ABB ACH480 Series - Multiple ACH480 Drives, External Power Supply; Activation Switch

Multiple ACH480 drives, external power supply
OUT1
SGND
IN1
IN2
OUT1
SGND
IN1
IN2
OUT1
SGND
IN1
IN2
+24 V
24 V DC
–+
K
1
2
1
2
1
2
Drive1
Control unit2
Activation switchK
￭ 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 187