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Initial Steps
1) Verify the motor is correctly connected to the drive, i.e. phase U->U, V->V, W->W.
With PM motors you can not have an arbitrary phasing. If direction reversal is
required, the system direction can be reversed in LF.28 after the pole position is
learned.
2) Verify the correct mode of operation. LF.4 should be set to either PCLSd or P9LSS.
If this is not the case see parameter US.10 to change the con guration mode.
3) If not already done, enter the motor nameplate data and machine data in parameters
LF.10 to LF.25. Learn the motor with the auto tune function, see sections 5.6.2 and
5.6.3.
4) Verify the correct encoder feedback card is installed in the drive. See parameter
0.LF.26. Enter the encoder ppr in parameter LF.27. Make sure LF.28 = 0 and the
sample time, LF.29 = 4 (4mSec.).
Alignment Process
1) Prevent brake from releasing.
2) Set LF.3 = SPI and press “Enter”. The display will con rm with StArt.
3) Press and hold the inspection switch up. The motor sheave should not turn and the
display will show position values of the encoder. The brake should not release.
4) Once complete, donE will be displayed on the keypad operator. Release the
inspection switch and make note of the nal position number in LF.77. This position
number is valid only for this motor and encoder. If the encoder is physically removed
from the motor, this process will need to be done again.
5) The display will show noP in LF.99 and LF.3 will automatically be set to run.
6) Verify encoder position is correct by running the car and monitoring the current
in LF.93. If the current is excessive, the encoder rotation may be incorrect. In
this case change LF.28 from a value of 0 to 1 or from 1 to 0, else from 2 to 3 or
from 3 to 2, and repeat the alignment process.
Errors: In the event the drive can not complete the measurement the following
error messages may occur.
FAILP: The drive is not able to begin measurements due to not entering and
learning the correct motor data. See section 5.6.2 and 5.6.3.
FAIL: The measurement sequence was interrupted, i.e. the inspection switch
was released prematurely, or the controller dropped the enabled signal to the
drive. Verify if the controller is dropping the signal by rst setting LF.3 to conF
and try again. If the controller still drops the enable and the motor contactor,
the problem lies in the controller.
i
Initial Start Up
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