ABB AC500 V3 Hardware Manual page 339

1.6.1.2.8 DX531 - Digital input/output module
● 8 digital inputs 120/230 V AC
● 4 relay outputs with one change-over contacts each
● Module-wise galvanically isolated
1 I/O bus
2 Allocation between terminal number and signal name
3 8 yellow LEDs to display the signal states at the digital inputs (I0 - I7)
4 4 yellow LEDs to display the signal states at the digital relay outputs (R0 - R3)
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
9 DIN rail
Sign for XC version
2022/01/31
*) Modules in lifecycle Classic are available from stock but not recommended
for planning and commissioning of new installations.
3ADR010278, 3, en_US
Device specifications
I/O modules > Digital I/O modules
339