Moog MSD Servo Drive Series, Помощь по устройству, Страница: 35 / 320

5.3 Linear synchronous motor
Fig. 5.4: “Linear synchronous motor settings” screen
There are two methods of creating a motor data set for the linear synchronous motor.

Variant 1: Motor calculation

Variant 2: Motor identification (
see Section
"Motor identification" on page 43)
Variant 1: Motor calculation

Enter motor data
The motor data relevant to the calculation must be entered from the data
sheet.

Click on “Start calculation”.
MOOG
ID No.: CB40859-001 Date: 02/2018
MSD Servo Drive - Device Help
35
5 Motor

If the moment of inertia of the motor
P 461 - Mot_J
is not known, a value
roughly corresponding to the motor's moment of inertia must be applied.

The calculation process can be monitored in the
Moog D
RIVE
A
DMINISTRATOR
via the menu,
View
, Messages
.

Calculation of
operating
point:
Flux P 462 - MOT_FLUXNom

Calculation of:
c
urrent, speed and position control parameters
NOTE

P 490 - MOT_ISLinRot
= LIN(1): The parameter will automatically
set the number of motor pole pairs to
P 463 - Mot_PolePairs
= 1.
As a result, a North to North pole pitch corresponds to one virtual
revolution
(P 49 - Mot_MagnetPitch).
NOTE

All existing motor parameters are overwritten.
Calculated values

Translation of the linear nominal quantities into virtual rotary nominal
quantities

Default values for auto commutation

Encoder lines per virtual revolution

Flux settings (including for torque constant)

Control settings for PI current controller: The current controller is
dimensioned
based
on the
actual
switching frequency set.

PI speed controller and position controller gain:
A moderately rigid
mechanism and moment of inertia matching from load to motor with a ratio
of 1:1 is assumed here.

The default value for speed tracking error monitoring corresponds to 50 % of
the nominal speed.

V/F characteristic