ABB DO820 3BSE008514R1 Digital Output Module

The DO820 is an 8 channel 230 V a.c./d.c.relay(NO) output module for the S800 I/O. Our team is available 24/7 to support you with your urgent needs for critical spare parts, please contact us.

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Description

DO820

ABB Ability™ System 800xA® hardware selector

The DO820 is an 8 channel 230 V a.c./d.c.relay(NO) output module for the S800 I/O.

The maximum output voltage is 250 V a.c./d.c. and the maximum continuous output current is 3 A.

All outputs are individually 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 an error signal if the voltage disappears, and the Warning LED turns on. The error signal can be read through the ModuleBus.

This supervision can be enabled/disabled with a parameter.

Features and benefits

8 channels for 230 V a.c./d.c.relay Normal Open (NO) outputs

8 isolated channels

Output status indicators

OSP sets outputs to predetermined state upon error detection

Technical Specifications

Isolation	Individually isolated, channel -to- channel and to circuit common
Current limiting	Can be current limited by the MTU
Maximum field cable length	600meters (656 yards)
Event recording accuracy	-0ms / +1.3 ms
Rated insulation voltage	250 V
Dielectric test voltage	2000 V a.c.
Power dissipation	Typ. 2.9 W
Current consumption +5 V Module bus	60mA
Current consumption +24V Module bus	140mA
Current consumption +24V external	0