Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 345

14. USING A DIRECT DRIVE MOTOR
14.4.1 Startup procedure
Setting of the servo motor select switch (SW3) (Refer to section 3.14)
Incremental system
(Note 1) Execution of the magnetic pole detection (Refer to section 14.4.2)
(Note 1) Positioning operation check using the test operation mode
Positioning operation check using the controller (Refer to section 14.4.3)
Home position return (Refer to the manual of the controller.)
Note 1. Use MR Configurator.
2. For the absolute position detection system, always turn on the Z-phase pulse of the direct drive motor while the servo amplifier
power is on, and then turn the servo amplifier power supply off and on again. By turning off and on the power supply, the absolute
position becomes confirmed. Without this operation, the absolute position will not be regained properly, and a warning will occur
at the controller.
3. If the Z-phase pulse of the direct drive motor can be turned on manually, the Z-phase pulse does not have to be turned on by the
magnetic pole detection or the JOG operation.
For this operation, always connect the direct drive motor encoder and the servo amplifier, and turn on only the control circuit
power supply of the servo amplifier (L
considering the safety.
Start up the direct drive servo in the following procedure.
Execution of installation and wiring
Absolute position
detection system?
on the Z-phase pulse of the direct
Z-phase pulse of the direct drive motor is turned on
by the JOG operation (Note 1 and 2)
Change to the setting not requiring the magnetic
pole detection (Refer to section 14.4.2 (2))
Turn the servo amplifier power
supply off and on (Note 2)
Positioning operation
and L ) (turn off the main circuit power supply L
11 21
Absolute position detection system
Can you manually turn Yes
drive motor?
No
14 - 12
Perform this procedure once at startup
Z-phase pulse of the direct drive
motor is turned on manually (Note 3)
, L , and L ). Perform this operation by
1 2 3