2.3 Sensored vs. Sensorless
While the Grinfineon controller will work sensorless with the hall connector
unplu ed, there are several limitations to this mode.
• Startin from a standstill can be a little bit jerky while the controller
attempts to self start the wheel.
• The controller will operate in a trapezoidal rather than the more silent
sine wave mode, resultin in some audible buzz or hum from the motor.
• With hi h ear reduction eared hub motors, you may hit the sensorless
eRPM limit of the controller (~28000 eRPM, see 4.1)
• When usin a Cycle Analyst, you won't have the option of pickin up the
speed si nal from the motor hall line and will require an external speedo
sensor and spoke ma net (i.e. CA-DPS or CA3-DPS).
If the motor has hall sensor wires, then we recommend connectin them to the
controller as well so that you can benefit from sensored sinusoidal operation.
The hall sensor plu has 5 wires, red and black supply power to the hall sensors
in the motor, and the yellow, reen, and blue wires carry the resultin hall
si nals.
Figure 8: Hall Signal Plug
2.4 Hall / P ase Mapping Procedure
Previous enerations of Grinfineon controller had the ability to automatically map
the hall and phase wires so that the exact pinout details did not matter. This was
very convenient but it is no lon er possible with the addition of sinusoidal
sensored mode. It is essential that the hall and phase pinout is correct.
The hall and phase pinout mappin on the SineWave Grinfineon controller is
consistent with how both eZee and Crystalyte motors choose their colour codin ,
and they can be matched yellow to yellow, reen to reen, and blue to blue.
Other popular motor series use a different colour interpretation, and some trial
and error is usually needed to determine the correct pinout.
