Via the redundancy relay (see illustration below), signals are switched from the Main
Unit to the Substitute Unit in case an alarm raise appears in the main unit. Alarms
that shall switch service to Substitute Unit in alarm condition can be selected via web
interface, see description in separate software manual.
Note: When the redundancy option is used, External Alarm IN 1, Alarm
OUT 1 and Alarm OUT 2 are not available.
4.7.
TROUBLESHOOTING
The status of the remote unit can be checked via the master unit (for details please
refer to the software manual of the Master Controller). Locally, the status can be
checked at the LED, see chapter
3.2.2 Connections
.
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