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Old 12-11-2011, 04:49 AM   #5269 (permalink)
MPaulHolmes
PaulH
 
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Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
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Now the summer is back?! It's friggen freezing over here!

Nice heatsink!

If you go over 5000 Ohms, it just ignores anything beyond it. No biggie. I think about 4500 would be full throttle.

The yellow wire comes disabled. I need to start enabling that sucker. You hook it to the positive of a contactor coil. Make sure you have a diode across the contactor coil to stop the inductive kick from going where it shouldn't. AFter a programmable amount of time, the yellow wire goes from 0v to 12volts. That powers the coil. Program it like this through the serial port:

pc-time XXX
save

Where xxx is a number in tenths of a second. For example:

pc-time 58
save

would cause the controller to wait 5.8 seconds before making the yellow wire go from 0 volts to 12volts. The time you have to wait depends on your precharge resistor value.

You need to wait about 0.1*R seconds, where R is the resistor value. So, if you had a 100 Ohm resistor, you would have to wait 10 seconds.
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