dirttorpedo
1 W
- Joined
- Mar 21, 2017
- Messages
- 53
So I was riding into work the other day and I had an issue. When I use the throttle, the wheel locks up and groans like the phase wires are switched up in the wrong combination. The same thing happens when I use the brake. The controller was still powered up and powering the CA, I was able to turn the bike off and pedal in without any resistance in the wheel.
My first thought was a wiring issue. So I checked all the wiring and it came out good. And the halls all test good from the motor. Then I assumed a blown FET or FETs. So I did a continuity test between the positive and negative on each of the phases on the controller. I was unable to get a continuity reading on any of the FETs. The funny thing is I get continuity between the positive and negative terminals. I've opened the controller and I don't see anything damaged. I also checked the poles on each of the FETs and it appears that they don't have any issues. Previously when damaged I've gotten continuity between poles on the individual FETs themselves.
The controller is a 60 amp Infineon from EM3EV. it is a backup controller for me. I have another controller that I'm just waiting to replace a couple of FETs on. I would like to keep it though as a backup if possible. Any ideas on where I can go from here.
My first thought was a wiring issue. So I checked all the wiring and it came out good. And the halls all test good from the motor. Then I assumed a blown FET or FETs. So I did a continuity test between the positive and negative on each of the phases on the controller. I was unable to get a continuity reading on any of the FETs. The funny thing is I get continuity between the positive and negative terminals. I've opened the controller and I don't see anything damaged. I also checked the poles on each of the FETs and it appears that they don't have any issues. Previously when damaged I've gotten continuity between poles on the individual FETs themselves.
The controller is a 60 amp Infineon from EM3EV. it is a backup controller for me. I have another controller that I'm just waiting to replace a couple of FETs on. I would like to keep it though as a backup if possible. Any ideas on where I can go from here.
