ABB DO802 System 800xA hardware selector

The DO802 is an 8 channel 110 V d.c./250 V a.c. relay (NO) output

module for the S800 I/O. The maximum voltage range is 250 V and

the maximum continuous output current is 2 A. Al outputs are

individualy isolated. Each output channel consists of optical

isolation barrier, output state indication LED, relay driver, relay and

EMC protection components.

The relay supply voltage supervision, derived from the 24 V

distributed on the ModuleBus, gives a channel signal error and a

module warning signal if the voltage disappears. The error signal and

warning signal can be read through the ModuleBus. This supervision

can be enabled/disabled with a parameter.

Features and benefits

• 8 channels for 110 V d.c. / 250 V a.c. relay Normaly Open (NO) outputs

• 8 isolated channels

• Process connection via detachable connectors