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Learn Procedure Troubleshooting
Problem: Troubleshoot:
Unable to complete SPI proce-
dure successfully
Ensure correct motor data and that a Motor Tune has been com-
pleted.
During the procedure, if a ‘Values are not consistent’ is displayed,
then a learned value falls out of range of the average of previous
values and the process will not complete successfully, but can be
done again as necessary.
If the LE03 Swap Encoder Channels setting for whether A/B
Channels Swapped is incorrect, this may cause more variance
in the encoder/pole position samples.
High motor inductance (> 100mH) values may have more vari-
ance in the encoder/pole position samples.
The drive should automatically determine the correct LE07 Rotor
Position Mode based on the learned motor data. It may be pos-
sible to try the other setting.
If “Error Calc. Motor Data” occurs, change LM27 from Ld <> Lq
to Ld = Lq. This may provide better results.
Unable to complete Encoder
Synchronization procedure suc-
cessfully
The motor must be able to run normally during this procedure.
Check for any mechanical issues preventing movement.
Ensure current is not excessive; if so, troubleshoot as necessary.
For PM motors, the LE03 Swap Encoder Channels setting for the
A/B phasing must be correct, which cannot be determined from the
SPI procedure. If the SPI procedure was used to learn the encoder/
pole position, change LE03 as needed and relearn encoder/pole
position with SPI again before doing the Encoder Synchronization
procedure.
For Induction motors, the motor must be able to run in open loop.
Adjust the LC32 Low Speed Torque Boost as necessary.
If unable to run the car in the down direction as described in the
procedure because it is at or near the bottom terminal limit, run the
car in the up direction instead. When prompted with whether or not
the elevator traveled in the down direction, answer No if it did and
Yes if it didn’t.
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