ABB AC500 Series User Manual

6.4 Connection
1 I/O bus
2 Allocation between terminal number and signal name
3 4 yellow LEDs to display the signal states at the analog inputs (I0 - I3)
4 4 yellow LEDs to display the signal states at the analog outputs (O0 - O3)
5 1 green LED to display the state of the process supply voltage UP
6 2 red LEDs to display errors
7 Label
8 Terminal unit
Sign for XC version
All I/O channels (digital and analog) are protected against reverse polarity,
reverse supply and continuous overvoltage up to 30 VDC.
AX521
Connection
2019/11/15 3ADR024117M02xx, 11, en_US 51

ABB AC500 Series Specifications

General

Brand	ABB
Model	AC500 Series
Category	I/O Systems
Language	English