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15. USING A DIRECT DRIVE MOTOR
(b) Absolute position detection system
Perform the magnetic pole detection in the following procedure.
1) Set [Pr. PL01 Linear servo motor/DD motor function selection 1] to "_ _ _ 1" (Magnetic pole
detection at first servo-on).
2) Execute the magnetic pole detection. (Refer to (3) (a) 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).
POINT
When the absolute position detection system is used, the magnetic pole
detection is required when the power is turned on with the following timing.
When the system is set up (at the first startup of equipment)
When the Z-phase pulse of the direct drive motor is not turned on at the
system setup (When the Z-phase pulse of the direct drive motor can be turned
on manually, the magnetic pole detection is not required.)
After a direct drive motor is replaced
When [AL. 25 Absolute position erased] has occurred
Turn on the Z-phase pulse of the direct drive motor in JOG operation from the
controller after the magnetic pole detection.
[Pr. PL01]
1
[Pr. PL01]
0
[Pr. PL08]
Magnetic pole detection at first servo-on (initial value)
Magnetic pole detection disabled
Magnetic pole detection method selection
0: Position detection method
4: Minute position detection method
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