Mitsubishi Electric MELSERVO-J4 series Instruction Manual page 439

15. USING A DIRECT DRIVE MOTOR
2) Execute the magnetic pole detection. (Refer to (2) (a) 1), 2) of this section.)
3) After the completion of the magnetic pole detection, change [Pr. PL01] to "_ _ _ 0" (Magnetic pole
detection disabled).
After the magnetic pole detection, by turning on the Z-phase pulse in JOG operation and by
disabling the magnetic pole detection function with [Pr. PL01], the magnetic pole detection after
each power-on is not required.
(4) Magnetic pole detection method setting
Set the magnetic pole detection method using the first digit of [Pr. PL08] (Magnetic pole detection
method selection).
(5) Setting of the magnetic pole detection voltage level by the position detection method
For the magnetic pole detection by the position detection method, set the voltage level with [Pr. PL09
Magnetic pole detection voltage level]. For the magnetic pole detection by the minute position detection
method, the voltage level setting is not required.
(a) Guideline of parameter settings
Set the parameters by referring to the following table.
(b) Setting procedure
1) Perform the magnetic pole detection, and increase the setting value of [Pr. PL09 Magnetic pole
detection voltage level] until [AL. 50 Overload 1], [AL. 51 Overload 2], [AL. E1 Overload warning
1], and [AL. EC Overload warning 2] occur. Increase the setting value by five as a guide value.
When these alarms and warnings occur during the magnetic pole detection by using MR
Configurator2, the test operation of MR Configurator2 automatically completes and the servo-off
status is established.
[Pr. PL01]
0
Magnetic pole detection disabled
[Pr. PL08]
Magnetic pole detection method selection
0: Position detection method
4: Minute position detection method
Servo status
Torques required for operation
Overload, overcurrent alarm
Magnetic pole detection alarm
Magnetic pole detection accuracy
15 - 12
[Pr. PL09] setting
(Guide value)
(10 or less (initial value) 50 or more)
Small
Not frequently occurs
Frequently occurs
Low
Small ← Medium → Large
Large
Frequently occurs
Not frequently occurs
High