10 USING A DIRECT DRIVE MOTOR
10.3 Startup [A]
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Magnetic pole detection by minute position detection method
*1 For the incremental system, the setting of [Pr. PL01] is not required.
*2 If the load to mass of the direct drive motor inertia ratio is unknown, perform the magnetic pole detection by the position detection
method, and then perform the auto tuning to set an estimated value.
*3 For the magnetic pole detection by the minute position detection method, the maximum travel distance at the magnetic pole detection
must be 0.5 mm or less. To shorten the travel distance, increase the value of [Pr. PL17.0].
YES
YES
YES
NO
YES
NO
NO
NO
YES
NO
Magnetic pole detection
Check that LSP (Forward rotation stroke end), LSN (Reverse rotation stroke end), and EM2 (Forced stop 2) are on,
and then cycle the servo amplifier power. Alternatively, reset the software.
Set [Pr. PL08.0 Magnetic pole detection method selection] to "4" (minute position detection method).
Set [Pr. PL01.0 Servo motor magnetic pole detection selection] to "1" (Magnetic pole detection at initial servo-on after
cycling the power).
*1
Cycle the power of the servo amplifier. Alternatively, reset the software.
Set the load to mass of the direct drive motor inertia ratio with [Pr. PL17.1 Load to motor mass ratio/load to motor
inertia ratio selection].
Execute "Forward rotation CCW" or "Reverse rotation CW" with "Positioning operation" in the test operation mode on
MR Configurator2. Set the travel distance to "0" at this time.
The magnetic pole detection is performed.
Is the value of [Pr. PL17.0
Response selection]
the final value?
Has an abnormal sound or
vibration occurred during the
magnetic pole detection?
Set the value of [Pr. PL17.0] decreased by two
as the final setting value.
Have [AL. 032 Overcurrent],
[AL. 050 Overload 1],
[AL. 051 Overload 2], and
[AL. 0E1 Overload warning 1]
occurred?
Decrease the value of [Pr. PL18 Magnetic pole detection
- Minute position detection method - Identification signal
amplitude] by five.
Not acceptable
Is the travel distance during
the magnetic pole detection
acceptable?
*3
Increase the value of [Pr. PL17.0] by one.
Acceptable
Is the setting value of [Pr. PL17
Magnetic pole detection - Minute
position detection method -
Function selection] correct?
Has [AL. 027 Initial magnetic pole
detection error] occurred?
Set [Pr. PL01.0] to "0" (Magnetic pole detection
disabled).
Set [Pr. PL08.0] to "0" (position detection method).
End
