Cerbo GX - Manual Relay - Momentary / Non latching

Modifications Node-RED
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Hi team,
I am trying to achieve non latching (momentary) functionality out of the Cerbo GX onboard relays (in manual mode). The purpose is to enable the client to switch DC loads over the VRM using a bistable relay.

I have tried adding a state change after a delay in Node-RED, but I can’t find the correct output block. I can change the relay state temporarily, but it doesn’t override the VRM/touchscreen switch state, so after ~3 seconds, the relay re-closes, and the logic loops. (I have added a photo of the Node-RED code I have tried to date).

Node-RED Relay Override
Node-RED Relay Override1393×241 24.9 KB

Any suggestions?

I’m hoping if I can find the output that changes the VRM request state, I can also find it on the input side and add an interlock between relay’s 1 and 2.

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I can’t help with the Node Red, the only observation is the relays have to be in manual for Node Red to control them.