Screen page "Motor" synchronous
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 |
Default:1 |
valid for all OPMODES |
This parameter is used to distinguish between synchronous (MTYPE = 1) and
asynchronous motors (MTYPE = 3). If asynchronous 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 |
Default: 6 |
valid for all OPMODES |
The current setpoint can be set for the operation of 2- to 250-pole motors.
Change this only while the amplifier is disabled.
Io
|
ASCII: MICONT |
Default: standstill current |
valid for all OPMODES |
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 |
Default: peak current |
valid for all OPMODES |
The peak current (r.m.s. value) should not exceed 4 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).
L
|
ASCII: L |
Default: 0 mH |
valid for all OPMODES |
Inductance of the motor (phase-phase). You can take this value from the
motor manual.
Max. speed
|
ASCII: MSPEED |
Default: 3000 rpm |
valid for all OPMODES |
Maximum permissible speed of the motor. Limits the entry for the parameter
SPEED LIMIT (screen page "Speed controller").
Number / Name
|
ASCII: MNAME |
Default: blanks |
valid for all OPMODES |
|
ASCII: MNUMBER |
Default: 0 |
valid for all OPMODES |
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 |
Parameter |
|
Basic Setup |
Max. Mains Voltage |
|
Motor |
No. Of Poles, Io, Iomax, L, Max.speed, Current Advance, Start Phi, Limit Phi, Brake with dialogue box |
|
Feedback |
Feedback Type, No. Of Resolver Poles, Offset |
|
Current controller |
KP, Tn |
|
Speed controller |
KP, Tn, PID-T2, Feedback, Max.speed, Overspeed |
Brake
|
ASCII: MBRAKE |
Default: 0 |
valid for all OPMODES |
If you want to operate a 24V holding brake in the motor directly from the servo amplifier, this parameter can be used to enable the brake function.
In the diagram in the Product manual you can see the time/function relationship
between the ENABLE signal, the speed setpoint, actual speed value, and
the braking force. Change this only while the amplifier is disabled + reset.
Current advance
|
ASCII: MTANGLP |
Default: 0 °electr. |
valid for all OPMODES |
A current-dependent phase advance, to make use of the reluctance torque for motors with magnets embedded in the rotor.
Start/Limit Phi
|
ASCII: MVANGLB |
Default: 2400 rpm |
valid for all OPMODES |
|
ASCII: MVANGLF |
Default: 20 °electr. |
valid for all OPMODES |
The inductive phase shift between the motor current and the motor voltage
can be compensated at high speeds. With the given voltage conditions, a
higher torque can be achieved at the speed limit. Alternatively, the achievable
speed limit can be increased by up to 30%.
The phase shift is increased
(depending on the motor speed) linearly from the Start Phi value up to
the final value = Limit Phi. The optimum setting depends on the motor type
and the speed limit.
Motor Unit
|
ASCII: MUNIT |
Default: 0 |
valid for all OPMODES |
Defines the entry for motor speed.
If 1/min (rpm) is used, the setting for
velocity/speed will be applied for VUNIT.
Load Data from disk
Load a motor-parameter file from a data medium (hard disk, diskette). The servo amplifier must be disabled to do this.