ABB 1MRS750741-MUM SPA-ZC100 LON/SPA Gateway, Manual

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

The DO801 is a 16 channel 24 V digital output module for the S800

I/O. The output voltage range is 10 to 30 volt and the maximum

continuous output current is 0.5 A. The outputs are protected

against short circuits, over voltage and over temperature. The

outputs are in one isolated group. Each output channel consists of a

short circuit and over temperature protected high side driver, EMC

protection components, inductive load suppression, output state

indication LED and optical isolation barrier.

MService targets two main application scenarios:

 Customer’s staff can use the device for performance analysis and continuous support of

maintenance planning for MNS and MNS iS system, with MService installed as permanent part of the switchgear.

 ABB’s service personnel uses the device to place it in a customer’s switchgear to

support customer decisions in keeping the switchgear in good condition by collecting

data for a certain time and derive an assessment on the switchgear performance and operational status.

To fit to these scenarios, the MService employs a small-scale, compact approach to enable fast

commissioning and ease of use.