Mitsubishi Electric QD77MS User Manual page 434

QD77MS
power ON
PLC READY [Y0]
READY [X0]
Servo parameter of
buffer memory/internal
Indefinite value
memory
Communication
operation status with
Communication invalid
servo amplifier
Md.26 Axis operation
0 (Standby)
status
Fig. 7.2 When the servo amplifier had started before the system's power supply ON
QD77MS
power ON
PLC READY [Y0]
READY [X0]
Servo parameter of
buffer memory/internal
Indefinite value
memory
Communication
operation status with
Communication invalid
servo amplifier
Md.26 Axis operation
0 (Standby)
status
Fig. 7.3 When the servo amplifier had started after the PLC READY signal [Y0] is turned OFF to ON
Servo parameter setting from
sequence program/GX Works2 (A)
Buffer memory/ Initialization
internal memory completion
data setting of QD77MS
Value of internal memory (nonvolatile)
Communication start valid
20 (Servo amplifier has not been connected/servo amplifier power OFF)
(The servo series of internal memory (nonvolatile) is not set.)
(2) When the servo amplifier's power supply is turned ON after the PLC READY
signal [Y0] is turned OFF to ON (Fig. 7.3 (C)).
Communication start timing to the servo amplifier: When the servo amplifier
Transfer the servo parameter
Servo parameter setting from
sequence program/GX Works2 (A)
Buffer memory/ Initialization
internal memory completion
data setting of QD77MS
Value of internal memory (nonvolatile)
20 (Servo amplifier has not been connected/servo amplifier power OFF)
Chapter 7 Memory Configuration and Data Process
PLC READY
signal [Y0]
PLC CPU
RUN OFF ON (B)
Write value by sequence program/GX Works2
Transfer the servo parameter at this point to the servo amplifier
Communication start (Axis connection)
PLC READY
PLC CPU signal [Y0]
OFF ON (C)
RUN
Write value by sequence program/GX Works2
Communication start valid
7 - 18
Axis connection completion
had started (Fig. 7.3 (B)).
: The data written from
sequence program/
GX Works2 before the
PLC READY signal [Y0]
ON (Fig. 7.3 (A)).
Servo amplifier
power ON (B) Axis connection completion
Transfer the servo parameter at this point to the
servo amplifier
Communication start
(Axis connection)
During
communication
21 (Servo OFF)
During
communication
21 (Servo OFF)