Screen Page "Motor" Asynchronous - Beckhoff AX2000 Setup Manual

Screen page "Motor" asynchronous

12 Screen page "Motor" asynchronous
All the parameters that appear on this screen page are defined by the motor default values (internal database in
the amplifier), and in most cases it will not be necessary to alter them.
Motor Type
ASCII: MTYPE
This parameter is used to distinguish between synchronous (MTYPE = 1) and asynchronous motors (MTYPE =
3). If synchronous is selected, then this screen page will appear in a different layout . Change this only while the
amplifier is disabled.
No. of poles
ASCII: MPOLES
The current setpoint can be set for the operation of 2- to 256-pole motors. Change this only while the amplifier is
disabled.
Io
ASCII: MICONT
The standstill current is the r.m.s. current value that the motor requires at standstill to produce the standstill
torque (defines the maximum value for the entry of Irms in the current controller).
Iomax
ASCII: MIPEAK
The peak current (r.m.s. value) should not exceed 2.5 x the rated current of the motor. The actual value is also
determined by the peak current of the servo amplifier that is used (defines the maximum value for the entry of
Ipeak in the current controller).
Rotor time constant
ASCII: MTR
Defines the rotor time constant under rated load (Tr = Lh/Rr).
Lh is die magnetizing inductance and Rr is the rotor resistance.
Max. speed
ASCII: MSPEED
Maximum permissible speed of the motor. Limits the entry for the parameter SPEED LIMIT (screen page
"Speed controller").
Rated Speed
ASCII: MVR
Rated speed of the asynchronous motor. This defines the point above which field-weakening is applied. For
instance, if a 4-pole motor is used that would normally operate on a 50Hz supply, then the rated speed must be
set to 1500.
Number / Name
ASCII: MNAME
ASCII: MNUMBER
Select the motor that is used from the motor database. The data are loaded after the motor has been selected.
If an encoder is used as a feedback unit, the motor number will automatically be reported to the servo amplifier.
Make changes only while the amplifier is disabled.
The following parameters are updated from the parameter set in the motor database:
Screen page
Basic Setup
Motor
Feedback
Current controller
Speed controller
34
07/03
Default:1
Default: 6
Default: standstill current
Default: peak current
Default: 200 ms
Default: 3000 rpm
Default: 3000 rpm
Default: blanks
Default: 0
Parameter
Max. Mains Voltage
No. Of Poles, Io, Iomax, L, Max.speed, Current Advance, Start Phi, Limit Phi, Brake
with dialogue box
Feedback Type, No. Of Resolver Poles, Offset
KP, Tn
KP, Tn, PID-T2, Feedback, Max.speed, Overspeed
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
valid for all OPMODES
Setup Software
BECKHOFF