zro-1 wrote: ↑
Mar 01, 2018 9:32 pm
When I test the hall connector on the Phaserunner I get a nice steady 5.3 volts between the positive and negative pins.
Do you mean across the red and black? If so, tha'ts just the hall supply voltage, and should read about that.
Or do you mean from each of the hall wires B Y G to ground (black)? If so, this is the pullup voltage from the controller, so it should read about what you get.
You should test both, if you haven't already done that.
When I hook it up to the motor, and I read the voltage from the back of the pins on the motor cable side, I get a fluctuating voltage between 50 and 72 mV.
Which pins? The red and black? Or each of the B Y G to black?
If the latter, does it fluctuate back and forth between those two values as you spin the wheel *backwards*, or does it just do that just sitting there?
If it's during rotation, it might mean the hall sensors are sort of working, but may not be reaching the pullup voltage on the controller side of the connector (bad crimp or connection, spread contacts, etc).
If just sitting there, it may mean there's no connection to the halls in the motor. (you can do a continuity test from the connector pins to the halls, but that requires opening up the motor again).
I also get that across the yellow and blue wires also. I get nothing off the green wire.
By "across" do you mean from each of the B Y G wires in turn with the red voltmeter lead, and the black lead to ground (black hall wire)? (this is the test you want to do)
Or do you mean with the red vm lead on one color of the BYG, and the black on another BYG? (this test doesn't really give useful info)
I tired spinning the wheel in reverse with the voltmeter leads in various positions, and the reading never changed. It was always 50-72 mV across red, blue, and yellow, and 0 V off of green.
Then it sounds like there is no connection betweeen the motor side of the connector and the controller side of the connector. Either the pins are bent or they are being pushed back as you plug them into each other, so that they don't make contact with the controller side pins, or spread out, etc.
You can also test from the back of the controller side of the connnector, with the motor plugged in, and see if there is voltage on each pin with the red vm lead, while the black vm lead is on ground of the same side (black wire).
If there is no voltage this way, but there is voltage when you unplug the motor from it, then something in the motor or wiring is shorting out the controller hall wires and/or power.
If there is normal voltage this way, then there is a connnection problem between the two.