I've had that exact problem (among my 4 dead PMAC's...) - it's dead.
One reason to seriously consider brushed motors is that troubleshooting is oh-so-much easier.
-Keith
--- In electricboats@yahoogroups.com, Bill Heintz <bheintz@...> wrote:
>
> I have read the Sevcon MillipaK PMAC Controller Manual cover to cover several times and still not sure I understand it fully yet unfortunately.
>
>
> These are some details of the components:
>
> Motor: Mars PMAC ME0201013001
> Controller: Sevcon MilliPak 633T42602
>
>
> This is my situation:
>
> I had a Sevcon Calibrator hooked up to the MillipaK and as I was looking at something else a friend picked up the Calibrator, inadvertently changing a several of the settings.
>
> First the motor started clunking and not responding to the Accelerator Pot at this point we got the 5 Flashes Fault and Code 21 on the Calibrator.
>
> After a couple of times trying to sort this out, things changed: we not get 3 Flashes and Code 27 on the Calibrator. I have since procured the Sevcon PCpak in hopes of solving - resetting the system. Under Node 0 Status we have "Armature MOSFET Short Circuit detected at Power Up (27)"
>
> Unfortunately I do not even know whether this is a problem with the Armature of the Motor or the MOSFET of the Controller.
>
> I swapped out the Motor with no change in status.
>
> With the Leads M1, M2 and M3 removed from the MillipaK the status reads System OK - with a steady green light.
>
>
>
> After reading Gremlins or Angels? [long..] I'm not sure I want to blindly replace the Controller w/o other tests.
>
> Any suggestions . . . thanks.
>
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