5-37
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 “T
uning 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“T
une 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.
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.
H 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.
The fault display can be cleared by pressing the Menu Key. The motor parameters will revert to their
default settings if a fault occurs. Set these parameters again when auto-tuning.
Fault display Probable cause and remedy
Data Invalid
(Motor setting data fault)
There was a fault in the data set during auto-tuning.
• There
was a fault in the relationship between the rated frequency
, rated
speed, and number of poles.
→ Change the settings to conform to the following formula:
Rated speed < 120 × Motor frequency/Number of poles
ALARM: Over Load
(Excessive load during auto-tuning)
The effective load factor exceeded 20% during auto-tuning.
• A load is connected to the motor axis. → Remove the load.
• There was a setting fault during auto-tuning.
→ Check the rated current setting. Change if necessary.
• The PG pulse number setting is incorrect.
→ Check the setting and change if necessary.
• There is a motor bearing problem.
→ Turn the Inverter off and rotate the motor by hand.
Replace the motor if it doesn’t turn smoothly.
Motor speed
(Motor speed fault)
The torque reference value exceeded 100% during auto-tuning.
• There is a broken/disconnected motor power wire.
→ Check and replace wiring components if necessary.
• The PG pulse number setting is incorrect.
→ Check the setting and change if necessary.
• The acceleration time is too short.
→ Increase acceleration time 1 (C1-01).
• A load is connected to the motor axis. → Remove the load.
Basic Operation Chapter
5
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