MEP-803A 24v reference while the engine is on

[mesias]

Hey there,

I have a battery charger in the unit hooked up to an outlet installed inside the genset with a single pole double throw relay. The relay is wired so the charger is connected to the normally closed leg. I now need 24v to open the circuit when the engine is on but I'm having a hard time finding 24v reference. Can I get some assistance? I was looking at S14, K12, K15, K16, K19 and K20 but I'm not sure where to measure first... I don't want to touch something while the machine is on and mess something up.

Thanks in advance!

 

[212sparky]

Are you able to tap off of the shut down solenoid wiring to power your relay? That way when it is energized to run the engine the relay is tripped?

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[nextalcupfan]

I'd pull reference off the hour meter. I checked and it only runs when the engine does, and when there is a fault it cuts power.

Specifically M3(Time Meter), Wire 150A or Terminal Board 5 #19

 

[Guyfang]

Whats wrong with MT4? It has power with or without anything being turned on.

 

[212sparky]

Whats wrong with MT4? It has power with or without anything being turned on.

He wants to open the relay controling the battery charger lines when the engine is running.

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