ABB AC500 Installation Instructions Manual page 23

Connection
① I/O-Bus (10 pole, male)
② I/O-Bus (10 pole, female)
③ Slot for I/O module
④ With a screwdriver, inserted in this place, adjacent Terminal Units can be shoved from each other
⑤ Holes for wall mounting
⑥ 40 screw-type terminals or spring terminals (signals and process voltage)
Cleaning instruction
Do not use cleaning agent for cleaning the device.
Use a damp cloth instead.
25.07.2017 AC500 Product Family Installation Instructions
TU5xx(-XC)
23