PS linear motor

NAVIGATION: Motor > PS linear motor

PS linear motor

Determining the data of the linear motor.

There are two methods of creating a motor data set for the linear synchronous motor.

Variant 1: Motor calculation
Variant 2: Motor identification.htm

Vorgehensweise: Calculation

Enter motor data
The motor data relevant to the calculation must be entered from the data sheet.
Click the "calculation" button.
If the moment of inertia of the motor P 0461 Mot_J is not known, a value roughly corresponding to the motor's moment of inertia must be applied.
The calculation process be observed on the DriveManager 5 by choosing the View, Messages menu.
Calculation of operating point:
P 0462 MOT_FLUXNom nominal flux,
Calculation of: current, speed and position control parameters

NOTE:

P 0490 MOT_ISLinRot=LIN(1) The parameter automatically sets the number of pole pairs for the motor to P 0463 Mot_PolePairs = 1.
As a result, a North to North pole pitch corresponds to one virtual revolution
(P 049 Mot_MagnetPitch)

ATTENTION:

All existing motor parameters are overwritten.

Bild: Calculation of controller setting for linear PS motors

Calculated values

Translation of the linear nominal quantities into virtual rotary nominal quantities
Default values for autocommutation
Encoder lines per virtual revolution
Flux settings (including for torque constant)
Control settings for PI current controller: The current controller is dimensioned dependent on the switching frequency setting.
PI-speed controller and position controller amplification: In this, a moderately rigid mechanism and a 1:1 moment of inertia adjustment from the load to the motor are assumed.
The default value for speed tracking error monitoring corresponds to 50% of the nominal speed.
V/F characteristic