ABB ACS560 - Grounding of Protective Shields

Note: The voltage at the STO input terminals of the drive must be at least 13 V DC
to be interpreted as “1”.
The pulse tolerance of the input channels is 1 ms.
￭
Grounding of protective shields
• Ground the shield in the cabling between the activation switch and the control
unit at the control unit only.
• Ground the shield in the cabling between two control units at one control unit
only.
198 The Safe torque off function