Author Topic: MPIII suddenly goes DOA  (Read 7504 times)

Offline Morgen 3Eman

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Re: MPIII suddenly goes DOA
« Reply #15 on: July 14, 2012, 12:44:24 AM »
Hi Truly,

I see I got it wrong.  Your screen shot says EBS, not the ESB I thought.

Hey, does the "ignition" wire get connected to + battery terminal to work?  Or does it go to ground?

I am looking forward to receiving my controller.  It is in shipment between SanFrancisco and Portland......

TTFN,
Dennis

Offline truly_bent

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Re: MPIII suddenly goes DOA
« Reply #16 on: July 14, 2012, 05:44:46 PM »
If you're referring to the single red lead that supplies power to the controller board, it goes to positive (+). I ran mine through a simple toggle switch (hidden under the seat) in order to turn the controller board off when connecting/disconnecting the battery. It also conveniently shuts down the Cycle Analyst, which draws its power from the controller board.

I was getting serious arcing (each time I connected the battery) at the Anderson power plug when I had that red "ignition" lead hardwired directly to the main power line. I still don't know why the board draws that much juice on power up (caps maybe?), but my plug wouldn't have lasted very long at that rate.
8)
« Last Edit: July 14, 2012, 05:59:11 PM by truly_bent »
Burley Canto recumbent w/ MP II, Lyen 18FET controller, 48V 20AH LiFeP04, Cycle Analyst, and 4 pounds of zip-ties