the RUN command was input via the touch panel or via communication, the RUN command
is shut off automatically as soon as tuning is completed.
6) When tuning is completed, the following parameter No. is displayed.
5 Corrective action in case of an error
As unwanted tuning might cause hunting or other malfunctions or worsen operational accuracy,
the inverter generates Er7 and discards tuning values when an abnormality is found in the tun-
ing result.
When tuning ends in an error (Er7), check the following.
• Is inverter output wiring open?
•
Has the mechanical brake operated?
• Has the free-run command "FRS" turned ON?
• Are parameter settings correct?
For details on the tuning error (Er7), refer to Tuning Error on page 6-69.
Offline Auto-tuning of Synchronous Motor (PM Motor)
Offline auto-tuning consists of the following five steps:
• Presetting of parameters
• Selection of tuning method
•
Preparing the mechanical system
• Execution of auto-tuning
• Corrective action in case of an error
1 Presetting of parameters
1) Set “15: PM Vector control without speed and pole position sensor” or “16: PM Vector con-
trol with speed and pole position sensor” to 1st Drive Control Selection (F42).
2) By referring 6-1-3 Motor Parameter Settings on page 6-6, set parameters matched to the
control method.
2 Selection of tuning method
Check the machine status, and select either “2: Tune the motor parameters while rotating” or
“1: T
une the motor parameters while stopped” in 1st Auto T
uning Function Selection (P04).
When performing only offset adjustment of the magnetic pole position sensor, select “4: Tune
the PM motor magnetic pole position offset while rotating.” After tuning is finished, adjust the
acceleration time and deceleration time, and conformity between the rotational direction of the
motor and rotational direction of the machine.
P04 data Data to be tuned Tuning
Supplementary ex-
planation
1
Tune the motor pa-
rameters while stop-
ped
1st PM Motor Arma-
ture Resistance (P60)
1st PM Motor d-axis
Inductance (P61)
1st PM Motor q-axis
Inductance (P62)
Tuning is performed in
a stop state.
When the motor can-
not be rotated. For ex-
ample, when the load
cannot be removed.
P30 = 1 or 2
6 Vector Control and Applied Functions
6-67
M1 Series Standard Type User's Manual (I669)
6-8 Motor tuning
6
6-8-1 Motor Off-line Auto-tuning
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