Autotuning Procedure For Pm Motors - Omron VARISPEED L7 Guia De Inicio Rapido

Autotuning Procedure for PM Motors

Fig 7 shows the autotuning procedure for permanent magnet motors. Before tuning make sure that the control
mode is set to PM Closed Loop Vector (A1-02 = 6).
EN-17
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START
* Remove the ropes so that the motor can rotate freely
* Set the Base Block inputs BB and BB1
Switch ON the power supply if it is OFF
Does a OPE06 fault
occur?
No
Does a CPF24 fault
occur?
No
Does a OPE02 fault
occur?
No
Set mechanical constants:
S3-13 - Traction sheave diameter
S3-14 - Roping
Open the brake, close the motor contactor,
turn the motor slowly in Forward direction*
Does PGO (no
encoder feedback)
occur?
No
Is the sign of the
U1-05 value positive
(not -)?
Yes
Set the autotuning parameters:
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
Wait until tuning is finsihed
Tuning successful?
Yes
("Tuning successful" is displayed)
Open the contactors, open the baseblock
inputs and close the brake
FINISH
Fig 7 Autotuning for Permanent Magnet Motors
Check parameter
* F1-01
* n8-35
Yes
* Check parameter n8-35
* If EnDat / Hiperface is used
Yes
- 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
Yes
absolute encoder resolution (F1-21) has been set.
* Refer to:
page 26, Operator Programming Errors (OPE)
and eliminate the fault source
S3-15 - Gear ratio
1
and check monitor U1-05.
* Check the wiring
Yes
* Check/readjust the encoder
power supply
No
T2-04 - Motor rated current
T2-05 - Motor pole number
T2-09 - Encoder resolution
T2-10 - Motor voltage constant
Refer to
page 27, Auto-tuning Faults
and eliminate the fault source
No
(Fault code is displayed)
* 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 manufacturer for
details about the rotation direction.
Switch off the power supply
and check if the right PG card
is correctley installed
* Check the encoder wiring
* Change parameter F1-05