Connecting relays that control other relays - RWS200

RWS200 Installation Manual

Product status
Document code: M211608EN
Revision: AA
ft:locale: en-US
Product: RWS200
Document type: User guide

The following figure shows the default wiring of the relays to the PMU701 POWER OUT connector and to the DMU703 DIGITAL connector.Relay wiring to DMU703

The following figure shows how to connect the relays so that when one of the relays activates, the other relays is never activated. In this case, route power through Relay 3 to the other relays. In error situations, Relay 3 activates and cuts power from the other relays.Wiring power through one of the relays

The following figure shows how to connect a failsafe device that switches on with normally closed contacts. Configure inverted activation logic for the relay.Fail-safe device with normally closed contacts

The following figure shows how to connect a failsafe device that switches on with normally open contacts. Configure inverted activation logic for the relay.Fail-safe device with normally open contacts