Delta VFD055ED43S User Manual

Chapter 10 Auto-tuning Process | VFD-ED
10-17
process of auto-tuning, an “Auto tuning” warning continuously displays on the digital keypad
until it is finished.
 Pr.08-00=2: Motor auto-tuning is static test:
1. Make sure that all the drive parameters are set to defaults and the motor wiring is
correct.
2. Enter the correct values for Pr.01-01, Pr.01-02, Pr.08-01, Pr.08-02, Pr.08-03 and Pr.08-
04. Refer to motor capacity to set the acceleration/deceleration time.
3. Note that the motor will run! The shaft needs to be locked by an external force.
4. After auto-tuning is finished, check if Pr.08-05, Pr.08-07, and Pr.08-08 all have values.
 Pr.08-00=1: Auto-measures the angle between the magnetic pole and the PG origin. Pay
attention to the following notes when measuring: (dynamic test)
1. Unload before auto-tuning.
2. If the drive controls the brake, the drive can auto-tune according to the normal
sequence after you complete the wiring and set the brake control parameters.
3. If the host controller controls the brake, make sure that the brake is in release status
before auto-tuning.
 Pr.08-00=3: Auto-measures the angle between the magnetic pole and the PG origin. Pay
attention to the following notes when measuring: (static test)
1. The motor can be loaded or unloaded before auto-tuning.
2. See the reference table for auto-tuning for Pr.10-00 (PG Signal Type).
3. If the drive controls the brake, the drive can auto-tune according to the normal
sequence after you complete the wiring and set the brake control parameters.
4. If the host controller controls the brake, make sure that the brake is in release status
before auto-tuning.
5. Make sure the setting for Pr.10-02 is correct. Incorrectly setting Pr.10-02 causes
incorrect positioning of the magnetic pole and results in the wrong angle between the
magnetic pole and PG origin.
NOTE:
 The entered rated speed cannot be larger than or equal to 120 f/p.
 Note that if the contactor and brake are not controlled by the AC motor drive, release it
manually.
 Set Pr.08-00 to 1 (unloaded motor) for accurate calculation. If you need to execute this
function with a loaded motor, balance the carriage before execution.
 If you do not balance the carriage in a measured environment, you can execute this
function with a loaded motor by setting Pr.08-00= 3. It will have a difference of 15–30o
for different encoder types.
 “Auto Tuning Err” displays on the digital keypad when stopping due to an AC motor
drive fault or human error, which means the detection fails. Check the wiring
connections of the AC motor drive If “PG Fbk Error” displays on the digital keypad,
change the setting of Pr.10-02 (if set to 1, change it to 2). If “PG Fbk Loss” displays on
the digital keypad, check the feedback of Z-phase pulse.

Delta VFD055ED43S Specifications

General

Brand	Delta
Model	VFD055ED43S
Category	DC Drives
Language	English