West Otis gearless motor encoder phase adjustment - Database & Sql Blog Articles

Single chip microcomputer STM32L151CCU6

Photocoupler

Before the gearless Motor is officially operated, a system zero position is recognized by the inverter and then stored as a parameter. If the system zero adjustment is not accurate, the inverter will not be able to control the motor well, or even make the motor out of control. Therefore, for Super-Star elevators, the encoder phase should be adjusted after self-learning.

Remove the wire rope before positioning the encoder.

1. Go to the REGULATION PARAM/Test generator/Test gen mode menu and set the parameter Modify Test Gen Mode to 4 Magn curr ref.

2. Enter the REGULATION PARAM/Test generator/Test gen cfg menu and set the parameters.

Gen hi ref 5000

Gen low ref 5000

The set values ​​of these two parameters must be such that the output current of the inverter after ENABLE is close to or the rated current of the motor < can be monitored through the MONITOR menu>.

3.Enable the inverter. The motor will run and stop at a fixed position. At this point, the phase adjustment can be done by mechanical (A) or software (B).

*Mechanical positioning (I recommend mechanical positioning if this is possible).

4. View the value of the variable sin-Cos Res pos in SERVICE/Brushless.

5. Loosen the parts of the fixed encoder and carefully rotate the angle of the encoder until sin-Cos Res pos=0.

6. Fix the encoder at this time, the phase adjustment has been completed.

7.Disable the inverter, reset the parameter Test gen mode in the menu REGULATION PARAM/Test generator to 0 off.

8. Save the parameters.

*Software positioning

4. Repeat. Disable the drive several times until the motor no longer moves.

5. Write the value of the variable Int calc offset in the menu SERVICE/Brushless directly to the variable sin-Cos Res off.

6.Disable the inverter, reset the parameter Test gen mode in the menu REGULATION PARAM/Test generator to 0 off.

7. Save the parameters.