ABB AC500 V3 Hardware Manual page 32

Device specifications
Processor modules > AC500-eCo
Connection of the digital inputs
The digital inputs can be used as source inputs or as sink inputs.
The following figure shows the connection of the digital inputs to the PM50x2 processor
modules:
Connection of digital inputs (sink inputs)
32
NOTICE!
Risk of malfunctions in the plant!
A ground fault, e. g. caused by a damaged cable insulation, can bridge switches
accidentally.
Use sink inputs when possible or make sure that, in case of error, there will be
no risks to persons or plant.
3ADR010278, 3, en_US
Connection digital inputs (source inputs)
2022/01/31