Auto-Tuning Faults - Omron SYSDRIVE 3G3FV User Manual

Basic Operation
The Inverter's auto-tuning function automatically determines the motor parameters while a servo sys-
tem's auto-tuning function determines the size of a load, so these auto-tuning functions are funda-
mentally different.
If a load is connected when auto-tuning is performed, not only will incorrect motor parameters be re-
corded, but the motor may operate erratically resulting in dangerous conditions such as loads falling
from vertical axis motors. Never perform auto-tuning with a load connected to the motor.
H Required Parameter Settings
Enter auto-tuning mode and make the following parameter settings:
Rated Voltage:
Rated Current:
Rated Frequency:
Rated Speed:
Number of poles:
Motor Selection:
The following message will appear when the parameters have been set:
Tuning Ready ?
Press RUN key
At this point, it is still possible to change the parameter settings by pressing the Increment and Decre-
ment Keys to display the desired parameter.
Press the Menu Key to cancel auto-tuning. (The operation mode display will appear.)
H Performing Auto-tuning
Auto-tuning will start if the Run Key is pressed when the "Tuning Ready?" message is being displayed.
The motor will operate during auto-tuning, so be sure that it is safe for the motor to operate before press-
ing the Run Key.
The following message will be displayed when the Run Key is pressed:
Tune Proceeding
HZ A
Auto-tuning takes up to 1.5 minutes. The message "Tune Successful" will be displayed when auto-tun-
ing is completed. If auto-tuning has been completed successfully, press the Menu Key and proceed to
the next operation. If a fault occurred during auto-tuning, refer to 5-2-2 Auto-tuning Faults for details on
correcting the cause of the fault and perform auto-tuning again.
Note To cancel auto-tuning after it has been started, press the Stop Key to stop the operation and then
press the Menu Key to return to Drive Mode.

5-2-2 Auto-tuning Faults

One of the fault messages in the following table will be displayed if a fault occurs during auto-tuning. In
this case, determine the cause of the fault, correct it, and perform auto-tuning again.
Set the rated voltage (VAC) shown on the motor's nameplate.
Set the rated current (A) shown on the motor's nameplate.
Set the rated frequency (Hz) shown on the motor's nameplate.
Set the rated speed (r/min) shown on the motor's nameplate.
Set the number of poles.
Select motor 1.
For two-motor switching control, select motor 1 or motor 2.
Chapter 5
5-21