ABB ACS880-17 - Single Drive (Internal Power Supply)

202 The Safe torque off function
 Single drive (internal power supply)
Dual-channel connection
Single-channel connection
+24 V
OUT1
SGND
IN2
T1/U, T2/V, T3/W
Control logic
UDC+
UDC–
A
K
IN1
ACS880-17
Motor-side converter
control unit
+24 V
OUT1
SGND
IN2
K
IN1
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.
ACS880-17
Motor-side converter
control unit