Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 477

■Magnetic pole detection by the minute position detection method
Magnetic pole detection
1) 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.
2) Turn "On (up)" the test operation select switch (SW1-1) of the servo amplifier, and then cycle the
power of the servo amplifier.
3) Set [Pr. PL08 Linear servo motor/DD motor function selection 3] to "_ _ _ 4" to set the magnetic
pole detection method to "Minute position detection method".
4) Set [Pr. PL01 Linear servo motor/DD motor function selection 1] to "_ _ _ 1" to enable "Magnetic
pole detection at first servo-on".
5) Cycle the servo amplifier power.
6) With [Pr. PL17 Magnetic pole detection - Minute position detection method - Function selection],
set the load to mass of the linear servo motor primary-side ratio.
7) Execute "Positive direction travel" or "Negative direction travel" 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 carried out.
Is the response by the
YES
minute position detection method of
[Pr. PL17] the final value?
NO
Has an abnormal sound or
vibration occurred during the
magnetic pole detection?
NO
Is the travel distance during
the magnetic pole detection
acceptable?
Acceptable
8) Set [Pr. PL01] to "_ _ _ 0" to set "Magnetic pole detection disabled".
End
*1 For the incremental system, the [Pr. PL01] setting is not required.
*2 If the load to mass of the linear servo motor primary-side 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 response by the minute position detection method in [Pr. PL17].
*1
Decrease the response by the minute
YES
position detection method of [Pr. PL17] by
two as the final setting value.
Not
Increase the response by the minute
acceptable
position detection method of [Pr. PL17] by
one.
*3
*2
*1
14 USING A LINEAR SERVO MOTOR
14.3 Operation and functions
14
475