Motor desync can be caused by a lot of reasons. Please follow the steps below to see if it can help:
1. If the KV value doesn't match the LiPo cells, it'll cause vibration/desync/overheating.
- For 4S batteries, we recommend you use 2300-2700KV motors;
- For 6S batteries, we recommend you use 1700-1900KV motors.
2. Too high PWM frequency can cause the motors to stutter or overheat. The ideal PWM frequency for each build varies depending on the frame, motors, props, and other factors. Higher PWM frequency doesn't necessarily mean smoother flight. If the default PWM frequency is not working for your build, you can increase the value gradually from the minimum value(often 16KHz) until you find the sweet spot. Check your motor temperature immediately after your test flight to avoid overheating. Sometimes, higher PWM frequency can let you fly smoother but you'll have warmer motors. If they're not too hot then it'll be okay.
3. If desync happens, you may also try to make the following changes in the configurator:
for BLHeli_32
- Rampup power - 12-15%
- Motor Timing - 22-30 degrees
- Demag Compensation - High
for BLHeli_S
- Startup Power - 0.38
- Motor Timing - High
- Demag Compensation - High
Like this:
4. At last, please check if there's any screw(see in the following picture) that touches the windings inside the motors. The motor will go mad if this happens and it may get burnt.
5. Please also refer to these troubleshooting videos:
Joshua Bardwell: Quadcopter Hot Motor | REAL WORLD TROUBLESHOOT
Joshua Bardwell: Wizard X220HV Death Roll | FIXED
UAV Tech: How to FIX Desyncs in 5 Minutes
#motor desync #stutter #glitch #crazy #falls out of sky
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