Quote:
Originally Posted by surfwooder
Should the motor become shorted and draws less than 50 amp, the contacts in the relays could become welded in the on position resulting in motor over heating, and finally motor failure.
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Unfortunately it's the oposite:
At first the inner relay contact can weld due to the high inductive load, when the motor stops. But if this welded contact can not open anymore, the motor will run continously until all plastic will melt inside of the motor. Have a look at the following pic of such a desaster:
Quote:
Originally Posted by surfwooder
...and now I'm thinking of doing a amp meter test to check the draw of the motor during operation of the top.
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We've measured about 37 amps on an E89. Might even be a bit higher for short moments when the motor get's shut off, but below 50 amps.