u/Usual-Translator6718

Hi everyone,

I’m struggling to tune a Ninebot Max G2 hub motor with a Flipsky 75100 Pro V2.0 controller. I keep running into issues with the Motor Setup Wizard, and I’m looking for some advice on what might be causing this.

The Problem: Every time I run the Motor Setup Wizard, it generates completely inconsistent results that fluctuate significantly between attempts. For example: Motor Inductance (L): 998.09 µH Motor Resistance (R): 67.8 mΩ Motor Flux Linkage (λ): 1000.000 mWb (this seems way too high for this motor).

Symptoms: During the Flux Linkage measurement step, the motor doesn't spin. Instead, it just twitches back and forth once per second. The Wizard fails to detect Hall sensors, even though the wiring has been verified and is correct. Has anyone encountered this specific behavior with a Ninebot G2 motor? Any advice on how to get a stable detection or if I should be using different manual parameters would be greatly appreciated.

Hi everyone,

I’m hitting a wall tuning a Ninebot Max G2 hub motor with a Flipsky 75100 V2 controller. I've spent 3 days troubleshooting and I'm at my wit's end. I'm hoping someone with experience on this specific setup can point me in the right direction.

The problems I'm facing:

Wizard Failure: During detection, the motor often locks up or vibrates violently ("tugs back and forth").

Inconsistent Data: Auto-detection gives wildly different results every time (R, L, and Flux values change significantly).

Sensor Issues: The Wizard doesn't detect my Hall sensors, even though the wiring is verified and correct.

Flux Linkage Calibration: Specifically, during the Flux Linkage test, the motor just vibrates/dithers instead of spinning smoothly, which eventually leads to a lock-up.

What I've already tried:

Disabled Phase Filters. Tried manual parameter entry (R: 60mΩ, L: 400µH, λ: 23mWb) — this leads to extreme cogging and a speed limit of ~1km/h.

Tried various Observer types (Ortega, MxLemming).

Verified that the controller is 75100 V2 (running latest firmware).

My questions:

Is there a "known-good" base configuration for this specific motor/controller combo? Why would the Wizard fail to detect Hall sensors despite proper wiring?

Are there specific FOC / Advanced settings I should manually adjust to prevent the "lock-up" during Flux mea I have attached screenshots of my current setup. Any advice on how to get a stable FOC tune for this motor would be a life-saver.