KEB COMBIVERT F5 Instruction Manual page 70

Alignment Process
1) Set LF.3 = P Lrn. The display should confi rm with StArt.
2) Press and hold the inspection up switch. Motor current will begin to fl ow in one
3) If the drive triggers the error E.ENC1, the encoder's counting maybe backwards.
4) If the drive displays E.ENC1 again the motor is not able to rotate freely. Release
5) Once the process is complete, donE will be displayed. Release the inspection switch
Return to Normal Operation
1) Put the drive into run mode by setting LF.3 to run
2) Run the motor on inspection up and down. The speed displayed in LF.89 should
3) If the motor rotates in the wrong direction refer to section 5.11.5 to reverse the
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phase and the current will ramp up to the motor's rated value. The motor sheave
should turn slowly and then stop when the motor rotor has lined up with one of the
motor poles. The display should show the actual position value of the encoder. As
the motor moves this value will change. When the motor rotor has aligned with a
pole, the value will stabilize. At this point, the alignment has been found.
Continue holding the inspection switch as the drive will then try to move the motor
clockwise and counter clockwise to verify the motor's rotation is consistent with the
encoder's. The motor should return to nearly the same position. Go to step 5.
If the motor keeps rotating for more than 30 seconds, the phasing between the
encoder and the motor is not correct. Verify the motor connection U to U, V to V,
etc. and make use LF.28 = 0.
Release the inspection switch. The drive will then automatically swap the encoder
channels by changing the value of LF.28 and then display retry. Go back to step
2.
the inspection switch and verify the brake is opening completely and that there is
not excessive friction. The sheave should be able to turn by hand. Verify the motor
phasing U to U, V to V etc.
If it is still not possible to learn the position try the old method by setting LF.3 =
conf and LF.77 to 2206.
and make note of the fi nal position number from LF.77 in the job information. 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.
be stable and should match the command speed value in LF.88. Additionally the
motor current in LF.93 should be near zero. If the current is not near zero (< 5
amps), the pole position may be off. Try to relearn the position by repeating the
alignment process.
system rotation.
Initial Start Up