Mitsubishi Electric QD77MS User Manual page 825

Chapter 14 Common Functions
POINT
Do not make to operate by switching between the actual servo amplifier and virtual
servo amplifier. When a value except "0" is set in "[Pr.100] Servo series" set in the
flash ROM, the servo series is not changed even if the "[Pr.100] Servo series" of
buffer memory is changed after power supply ON and then the PLC READY signal
[Y0] is turned OFF to ON. To change the servo series, write to the flash ROM and
turn the power ON again or reset the PLC CPU.
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