Mitsubishi Electric MELSEC-Q Series User Manual page 711

POINT
If the servomotor is rotated by external force during the servo OFF status, follow
up processing is performed.
Change between servo ON or OFF status while operation is stopped (position
control mode).
The servo OFF command of during positioning in position control mode, manual
pulse control, HPR, speed control mode and torque control mode will be ignored.
When the servo OFF is given to all axes, "All axis servo ON [Y1]" is applied even
if all axis servo ON command is turned ON to OFF with "[Cd.100] Servo OFF
command" set "0".
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Chapter 13 Control Sub Functions