Autotuning Procedure With Pm Motors - Omron VARISPEED L7 Manual

Autotuning Procedure with PM Motors

Fig 4.3 shows the autotuning procedure for permanent magnet motors. Before tuning make sure that the con-
trol mode is set to PM Closed Loop Vector (A1-02 = 6).
* Remove the ropes so that the motor can rotate freely
* Set the Base Block inputs BB and BB1
S3-13 - Traction sheave diameter
S3-14 - Roping
Open the brake, close the motor contactor,
turn the motor slowly in Forward direction*
T1-01 = 0 - Rotational Tuning
T2-01 - Motor rated power
T2-02 - Motor base frequency
T2-03 - Motor rated voltage
Press the UP button until the "Tuning Ready" display appears
Close the motor contactor(s) and press the RUN button
("Tuning successful" is displayed)
START
Switch ON the power supply if it is OFF
Yes
Does a OPE06 fault
occur?
No
Yes
Does a CPF24 fault
occur?
No
Yes
Does a OPE02 fault
occur?
No
Set mechanical constants:
S3-15 - Gear ratio
1
and check monitor U1-05.
Yes
Does PGO (no
encoder feedback)
occur?
No
No
Is the sign of the
U1-05 value positive
(not -)?
Yes
Set the autotuning parameters:
T2-04 - Motor rated current
T2-05 - Motor pole number
T2-09 - Encoder resolution
T2-10 - Motor voltage constant
Wait until tuning is finsihed
No
(Fault code is displayed)
Tuning successful?
Yes
Open the contactors, open the baseblock
inputs and close the brake
FINISH
Fig 4.3 Autotuning for Permanent Magnet Motors
Switch off the power supply
Check parameter
and check if the right PG card
* F1-01
is correctley installed
* n8-35
* Check parameter n8-35
* If EnDat / Hiperface is used
- check the encoder power supply
- check the CLOCK and DATA signal wiring
* Switch off the power supply.
* Check if the correct PG constant (F1-01) and
absolute encoder resolution (F1-21) has been set.
* Refer to:
page 7-12, Operator Programming Errors
and eliminate the fault source
* Check the wiring
* Check/readjust the encoder
power supply
* Check the encoder wiring
* Change parameter F1-05
Refer to
page 7-14, Auto-tuning Faults
and eliminate the fault source
* 1. Forward direction means:
The direction the motor turns with an UP command at terminal
S1 (i.e. with a clockwise rotating 3 phase supply and U-U, V-V,
W-W wiring between inverter and motor). Usually the direction
is clockwise seen from the motor shaft (traction sheave) side.
Refer to the motor instruction manual or consult the manufac-
turer for details about the rotation direction.
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