Mitsubishi Electric TM-RFM Series User Manual page 13

For vertical axis (lift)
For the system where the unbalanced torque occurs, such as a vertical axis system (lift), use the direct drive motor in the
absolute position detection system. In the absolute position detection system, the absolute position is established when the Z-
phase mark passes the connector area once. Therefore, at system startup, make the Z-phase mark pass over the connector
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area, and switch the servo amplifier's power supply from off to on.
If the direct drive motor can be rotated manually, make the Z-phase mark pass over the connector area while only the servo
amplifier's control circuit power supply is on. After that, switch the servo amplifier's power supply from off to on.
If the direct drive motor cannot be rotated manually, detect the magnetic poles while the torque is balanced, then run the direct
drive motor in the test mode to make its Z-phase mark pass over the connector area. After that, switch the servo amplifier's
power supply from off to on. After the Z-phase mark passes over the connector area once, magnetic poles detection is not
required.
2 INSTALLATION
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2.1 Equipment configuration