Pm Motor Encoder Offset Tuning - Omron VARISPEED L7 Guia De Inicio Rapido

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PM Motor Encoder Offset Tuning

Fig 8 shows the autotuning procedure for an encoder offset tuning. The procedure should be performed if the
encoder has been changed or has not been aligned correctly. Before tuning make sure that PM losed loop vec-
tor control is selected (A1-02 = 6) and that the E1-
Set the Base Block inputs BB and BB1
Switch ON the power supply if it is OFF
Open the brake, close the motor contactor,
turn the motor slowly in Forward direction*
T1-01 = 4 - Encoder Offset Tuning
Press the UP button until the "Tuning
Close the motor contactor(s) and
Yes
("Tuning successful"
display is shown)
Open the contactors, open the base
and E5-
START
No
Is it possible to remove
the ropes ?
Yes
Remove the ropes.
Check parameter
* F1-01
* n8-35
Yes
Does a OPE06 fault
occur?
No
Yes
Does a CPF24 fault
occur?
No
Yes
Does a OPE02 fault
occur?
No
1
and check
monitor U1-05.
* Check the wiring
Yes
Does PGO (no
* Check/readjust the encoder
encoder feedback)
power supply
occur?
No
No
Is the sign of the
U1-05 value positive
(not -)?
Yes
Set:
Ready" display appears.
press the RUN key.
Wait until the tuning is finished.
No
(Fault code is
displayed)
Tuning successful?
* 1. Forward direction means:
block inputs and close the brake
FINISH
Fig 8 Encoder Offset Autotuning
parameters are set up correctly.
Balance the car so that it does not move
with open brakes.
Note: The tuning accuracy will be lower
in this tuning mode
Switch off the power supply
and check if PG card is
correctly installed
* 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 26, Operator Programming Errors (OPE)
and eliminate the fault source
* Check the encoder wiring
* Change parameter F1-05
Refer to
page 27, Auto-tuning Faults
and eliminate the fault source.
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.
EN-18