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I would set it to kick out on oil pressure.
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That I don't recommend because if anything causes the inverter to fault you get zero output even with the engine running.
I can attest to that. I had a bit of inverter issue and unit was still running while a couple of capacitors were on fire or at least having melt down.That I don't recommend because if anything causes the inverter to fault you get zero output even with the engine running.
You are choosing the more challenging machine to start with. These are a little different than your typical generator.
For engine crank stop, on the 802 or 803, the MPU, (Magnetic Pick Up) sends a signal to the A-1, (volt regulator) to cut out the starter and excite the Main gen, at a predetermined RPM. That signal should work. For the 831, you guys have look at the schematics. I am almost sure the 831 has a starter lock out circuit. Need to look.Thanks again, here's some screen shots of the controller software. Would you mind giving your opinion on what input would work best for the engine crank stop. Thinking this thru a bit more I guess I'd have to use the freq from the input to the contactor.
View attachment 665651View attachment 665650
The military has been using MPU technology since the 80's. The bugs are worked out of it. The only problems encountered, are normally dirt and metal filings. All other problems are user caused. Screw in the mag pick up to far, need a new one. Screw it out too far, won't work. Since the first time I saw a the MPU system installed, say 1985? I can count the number of mag pickups that have gone bad, on one hand. It simply doesn't get any easier then MPU for speed control, starter cut out and any other function of MPU technology. The holes between the teeth on a flywheel would have to be incredibly large, for the MPU to not function. Even in the flywheel is stopped, it wouldn't make a difference. The signal isn't being read by any component until the engine starts, or runs. Its a good system. I wonder why its not being used already on 831's?Another argument for the optical over the mag pickup is the mag pickups will also have trouble differentiating the gaps in the teeth with them being so close. In my experience mag pickups like a pretty good gap between cycles to be accurate. This is based on PLC based equipment, not necessarily one of these controllers, which I have -0- experience with. Just my experience which may not be correct for this particular application.Another possibility is that the flywheel will have holes in it to lighten it up and it might be possible to position mpu over one of these.
The frequency output of the PMA is the speed signal that is used by the governor module. Using a MPU on that one would be redundant.I wonder why its not being used already on 831's?