Motor Power Company DUET_FL 48/10, Руководство пользователя

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Page 39
This function can be accessed via Options/Device parameters/Motor data . The following menu
appears. You can enter the maximum current and the rated current of the motor used:
Enter the data shown on the type plate. You can calculate the torque constant as the quotient of rated
torque / rated current.
Please note that the values to be entered for the maximum current and the rated current
are effective values! If the currents are too high, the motor will be destroyed as the
permanent magnets inside the motor will be demagnetised. The current limits stated by
the manufacturer must not be exceeded.
The maximum current limits may depend on the clock frequency of the output stage. To parametrize
the clock frequency, click the
Power stage button. See also chapter Power stage .
In addition you can enter the number of poles of your motor. There is also an automatic identification
function which determines the number of poles and the offset angle of the angle encoder automatically.
Simply click the
Auto detect button.
If the motor is equipped with Six-Step Hall sensors, the number of poles of the motor has to be entered
through the parametrization software.
DANGER !
Prior to starting the motor identification, you have to set the current limits (menu
Parameters/Device parameters/Motor data ) as otherwise the motor may be destroyed!
If encoders with a poor resolution (e.g. Six-Step Hall encoders) are used, speed recirculation through
the Motor-EMK can have a positive effect on the running behaviour of the motor.
If the speed is determined with the help of the Motor-EMK (electromotive force of the motor), the
following formula
( )
Nenn
Nenn
mot q KL EMK
U
N
R I U N
× × − =
) (
User Manual DUET_FL „DUET_FL 48/10“ Version 1.1 Motor Power Company