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January 2019 KPM KB2 Man W41100099V1.8 11

3.1.2 KPM KB2 with +24 VDC + power supply

Relays are of dry contact types. In normal operation the "Break Out On" relay is open and it closes

during a break. In case the power is lost or turned off the "Break Out On" relay remains open

(disabled). "Break Out Off" works in the opposite way. There is 2 parallel Break Relays, Break Out

1 and Break out 2 which are working simultaneously.

”Alarm Out Off" is normally closed. It opens in case the built-in self-diagnostics detects a failure.

If power is lost or turned off the "Alarm Out Off" is OPEN. "Alarm Out On" works in the opposite

way. There is 2 parallel Alarm Relays, Alarm Out 1 and Alarm out 2 which are working

simultaneously.

Fig. 3.3. KPM KB2 +24 VDC. Wiring of Power Supply, Break relay and Maintenance alarm

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ABB KPM KB2 Specifications

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