Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

Page: 345 / 500

14. USING A DIRECT DRIVE MOTOR
14 - 12
14.4.1 Startup procedure
Start up the direct drive servo in the following procedure.
Absolute position detection system
Execution of installation and wiring
Z-phase pulse of the direct drive motor is turned on
by the JOG operation (Note 1 and 2)
(Note 1) Execution of the magnetic pole detection (Refer to section 14.4.2)
Absolute position
detection system?
Incremental system
Can you manually turn
on the Z-phase pulse of the direct
drive motor?
Change to the setting not requiring the magnetic
pole detection (Refer to section 14.4.2 (2))
Z-phase pulse of the direct drive
motor is turned on manually (Note 3)
Turn the servo amplifier power
supply off and on (Note 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.)
Positioning operation
No
Yes
Perform this procedure once at startup
Setting of the servo motor select switch (SW3) (Refer to section 3.14)
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
11
and L
21
) (turn off the main circuit power supply L
1
, L
2
, and L
3
). Perform this operation by
considering the safety.