4
Rotor Calibration
Rotor Calibration run is important when you have replaced controller board, when rotor was
replaced or magnet replaced (rotor position magnet). Calibration process takes up to 10
seconds.
Important:
➢ Battery needs to be charged at least to 50% and battery BMS turned on
➢ Chain must be down from chainwheel !!!
➢ You can hold cranks during calibration to avoid turning and hitting objects around
Calibration can be run as follow and will start 5 seconds after connecting motor to over CAN:
1. Uncomment “Calibration5” command in AutoSet.txt file on SD card.
2. Insert SD card into K1 Flash (SD card pins facing USB-C connector).
3. Power up K1 Flash over USB-C - Green LED blinking.
4. Connect to your motor over CAN connector - K1 Flash will set parameters and then there is 5
seconds to start Calibration. Green/Red is flashing.
5. Motor will jump in few steps, rotate and stop in few seconds - Green LED steady - Calibration
completed. You can unplug motor.
Firmware update functionality
Please check step by step instructions and videos on K1 ordering google forms page:
https://forms.gle/HsRPbsAus3vNQS5B6
If you like this product, we would appreciate to give us a review and stars on our Facebook
page - www.fb.com/K1eBikes
Operation of modified electric bike on a public road may be against the law in your country.
K1 Flash is determined for testing purpose only and seller (K1 eBikes - Ing. Drahomír Komár)
is not responsible for any damage on property or health. Buyer is taking this in mind and
consent.
Modifying your motor over K1 Flash device may void the warranty of your e-bike.
Ing. Drahomír Komár
Bratislava, Slovakia
flash@K1eBikes.sk
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