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Forum: Open ReVolt: open source DC motor controller

06-19-2015, 07:11 PM

Replies: 31

500A controller troubleshooting II

Views: 9,369

Posted By Lectrik

Follow the schematic and check continuity between...

Follow the schematic and check continuity between a questionable connection and where it goes to. I found two open circuits where a pad should have been on the board.

Forum: Open ReVolt: open source DC motor controller

06-13-2015, 07:31 PM

Replies: 31

500A controller troubleshooting II

Views: 9,369

Posted By Lectrik

Check for continuity between J2 Pin 2 and U4 Pin...

Check for continuity between J2 Pin 2 and U4 Pin 13. Apparently I must have blown the trace off because I had an open.

It still didn't fix my communication problem but gives you something to...

Forum: Open ReVolt: open source DC motor controller

06-13-2015, 11:13 AM

Replies: 28

500A Controller troubleshooting

Views: 6,574

Posted By Lectrik

I received my parts yesterday and got everything...

I received my parts yesterday and got everything put back together this morning.

I replaced U6 with HCPL-4506 and also replaced U7. If anyone needs some 4504's I have two.

After connecting to...

Forum: Open ReVolt: open source DC motor controller

06-08-2015, 03:16 PM

Replies: 28

500A Controller troubleshooting

Views: 6,574

Posted By Lectrik

I just ordered the hcpl-4504 ten minutes ago. ...

I just ordered the hcpl-4504 ten minutes ago.

It seems my soldering skills are't bad, my de-soldering skills are terrible. I forgot how difficult it is even with solder wick and a sucker. Broke a...

Forum: Open ReVolt: open source DC motor controller

06-08-2015, 11:56 AM

Replies: 28

500A Controller troubleshooting

Views: 6,574

Posted By Lectrik

R11 reads almost zero volts (.003) at no throttle...

R11 reads almost zero volts (.003) at no throttle and 5 volts at max. Actually it is not linear. There is a slight gradual rise and then jumps up.

R15 seems to react opposite of R11. At minimum...

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