Mitsubishi Electric QD77MS User Manual page 108

(Note-1): When the control power supply of servo amplifier is shut off, it is not possible to communicate with the servo amplifier after that.
Example) When the control power supply L11/L21 of the servo amplifier B in the figure is shut off, it is also not possible to
communicate with the servo amplifier C .
If only a specific servo amplifier main circuit power supply is shut off, be sure to shut off the main circuit power supply
L1/L2/L3, and do not shut off the control power supply L11/L21.
(Note-2): Be sure to shut off the both of main circuit power supply L1/L2/L3 and control power supply L11/L21 after disconnection of
SSCNET communication by the connect/disconnect function of SSCNET communication at the time of exchange of servo
amplifier. At this time, it is not possible to communicate between the servo amplifier and Simple Motion module. Therefore, be
sure to exchange the servo amplifier after stopping the operating of machine beforehand.
(Note-3): If the emergency stop signal of Simple Motion module turns OFF when setting of "[Pr.82] Forced stop valid/invalid selection" to "0:
Valid", servomotor is stopped with dynamic brake. (The LED display of servo amplifier indicates "E7.1" (Controller forced stop
input warning).)
Chapter 3 Specifications and Functions
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