Power Hold function

by **LOLA-Christian** on Mon Jan 18, 2016 10:44 pm

Is this the correct way to utilise function 118 (Power Hold) in M800:

: Motec M800 Power Hold Function.JPG (96.36 KiB) Viewed 15762 times

by **Scott@FP** on Thu Jan 21, 2016 2:40 pm

I don't think it will work the way you have it wired, the dig4 is ign switch input? Aux8 would be power hold with high side driver? If so the power hold putting B+ on the relay terminal will keep the ign switch dig4 from seeing 0v (off).

DPST ign switch with one pole to dig4 and one pole to the relay would isolate them and let it work.

by **LOLA-Christian** on Thu Jan 21, 2016 11:30 pm

Thank you Scott for the reply!

And, you're absolute right!
But if I would add a diode (between AUX8 & DIG4) it should work, right?

(Tried to upload a new pic but got this respose:
"It was not possible to determine the dimensions of the image.")

by **Scott@FP** on Fri Jan 22, 2016 4:02 am

My brain may be coffee deficient this AM, but I don't see a diode solving the issue.

by **LOLA-Christian** on Fri Jan 22, 2016 6:07 pm

Diode inserted:

: Motec M800 w Diode.JPG (45.84 KiB) Viewed 15671 times

by **Scott@FP** on Sat Jan 23, 2016 4:32 am

Ah.....your coffee is better then my coffee. Don't see why that won't work.

Power Hold function

Power Hold function

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