Amoeba
RCTalk Addict
I have a Novak HV Pro 6.5 kit which is experiencing problems. I installed it on an RC8 e-conversion and while doing testing & breaking it in/getting my chassis settings to where I want, I’m now experiencing a vexing issue. It was running perfectly (and full of awesome!) for about 20 minutes and then stopped responding completely to throttle input and can’t seem to be resurrected. Steering unaffected. At no time did the motor, battery, or ESC temps reach anything remotely close hot, and I was monitoring quite closely.
The LED status lights (Blue/Green) when trying throttle input indicate a locked rotor detection (though they are solid, not blinking as per troubleshooting documentation). I’ve attempted the one-touch reprogramming multiple times (ESC button held, power on & held until red LED, throttle forward til solid green, push brake til blinking green, then solid Red indicating throttle at neutral and programming complete) with no change. I’ve one-touched to all 3 preset profiles, same issues. At no time does the motor spin. There is an initial click and slight motion that indicates current is getting to the motor but shaft does not spin. In some rare cases, I can get reverse (but not forward) for about 1-2 seconds then it cuts out again with blue/green LED indicators.
Some things I’ve done to dismiss other causes: I have checked the batteries and swapped in both known good 4S LiPo and NiMH’s setups. I’ve tried rotor reset with engine loosened as well as unmeshed to spur so gear binding isn’t the problem. Gearing was well within acceptable ratios. I’ve opened the ESC case & inspected PCB, solder joints, leads, wiring and connections and all are good with no shorts, nicks, or other potential or obvious signs of a fried ESC or current issue. I’ve disassembled, cleaned, & reassembled the motor and there is no binding or other apparent problem with the motor.
So… what the heck do I do to solve this problem? Is it a dead/faulty rotor sensor in the motor? Any suggestion or other black magic voodoo you electric experts could recommend?
The LED status lights (Blue/Green) when trying throttle input indicate a locked rotor detection (though they are solid, not blinking as per troubleshooting documentation). I’ve attempted the one-touch reprogramming multiple times (ESC button held, power on & held until red LED, throttle forward til solid green, push brake til blinking green, then solid Red indicating throttle at neutral and programming complete) with no change. I’ve one-touched to all 3 preset profiles, same issues. At no time does the motor spin. There is an initial click and slight motion that indicates current is getting to the motor but shaft does not spin. In some rare cases, I can get reverse (but not forward) for about 1-2 seconds then it cuts out again with blue/green LED indicators.
Some things I’ve done to dismiss other causes: I have checked the batteries and swapped in both known good 4S LiPo and NiMH’s setups. I’ve tried rotor reset with engine loosened as well as unmeshed to spur so gear binding isn’t the problem. Gearing was well within acceptable ratios. I’ve opened the ESC case & inspected PCB, solder joints, leads, wiring and connections and all are good with no shorts, nicks, or other potential or obvious signs of a fried ESC or current issue. I’ve disassembled, cleaned, & reassembled the motor and there is no binding or other apparent problem with the motor.
So… what the heck do I do to solve this problem? Is it a dead/faulty rotor sensor in the motor? Any suggestion or other black magic voodoo you electric experts could recommend?
