ABB ACS880-07CLC

• 60 m (200 ft) between external power supply and first inverter unit
• 30 m (100 ft) between BCU control unit and last inverter module in the chain.
Note:
The voltage at the INx terminals of each inverter control unit (or frame R8i inverter module)
must be at least 17 V DC to be interpreted as “1”.
￭ Grounding of protective shields
• Ground the shield in the cabling between the activation switch and the control unit at
the control unit.
• Ground the shield in the cabling between two control units at one control unit only.
• Do not ground the shield in the cabling between BCU and R8i module, or between R8i
modules.
The Safe torque off function 191