68the actual position value of the encoder. As the motor moves this valuewill change. When the motor rotor has aligned with a pole, the value willstabilize. At this point, the alignment has been found.Continue holding the inspection switch as the drive will then try to movethe motor clockwise and counter clockwise to verify the motor’s rotationis consistent with the encoder’s. The motor should return to nearly thesame position. Go to step 5.If the motor keeps rotating for more than 30 seconds, the phasing betweenthe encoder and the motor is not correct. Verifty the motor connection Uto U, V to V, etc. and make sure LF.28 = 0.3) If the drive triggers the error E.ENC1, the encoder’s counting maybebackwards. Release the inspection switch. The drive will then automaticallyswap the encoder channels by changing the value of LF.28 and thendisplay retry. Go back to step 2.4) If the drive displays E.ENC1 again the motor is not able to rotate freely.Release the inspection switch and verify the brake is opening completelyand that there is not excessive friction. The sheave should be able to turnby 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 settingLF.3 = conf and LF.77 to 2206.5) Once the process is complete, donE will be displayed. Release theinspection switch and make note of the fi nal position number from LF.77in the job information. This position number is valid only for this motor andencoder. If the encoder is physically removed from the motor, this processwill need to be done again.Return to Normal Operation1) 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.89should 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 currentis not near zero (< 5 amps), the pole position may be off. Try to relearnthe position by repeating the alignment process.3) If the motor rotates in the wrong direction refer to section 5.11.5 to reversethe system rotation.4) For high speed runs under load, it may be necessary to raise 0.LF36 to ahigher value. This value should not be set to a value higher than the motormanufacturer’s peak torque value, usually 2.0 to 2.4 times the motor’srated torque found in parameter LF.17.Initial Start Up
