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ABB ACS355 series - Connection Principle

ABB ACS355 series
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Appendix: Safe torque off (STO) 419
Connection principle
Connection with internal +24 V DC power supply
Connection with external +24 V DC power supply
X1C:2
X1C:1
+ 24 V DC
X1C:3
X1C:4
T1/U,
T2/V,
T3/W
Control unit
+ 24 V DC
STO
UDC+
UDC-
A
Drive
OUT1
OUT2
IN1
IN2
Control logic
K
+
X1C:2
X1C:1
X1C:3
X1C:4
T1/U,
T2/V,
T3/W
Control unit
24 V DC
STO
UDC+
UDC-
A
Drive
OUT1
OUT2
IN1
IN2
Control logic
+ 24 V DC
+ 24 V DC
-
K
GND
X1A:3/6/8/10

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