7 - 19
Chapter 7 Memory Configuration and Data Process
Transfer the servo parameter at this point to the servo amplifier
Md.26 Axis operation
status
Communication
operation status with
servo amplifier
Servo parameter of
buffer memory/internal
memory
0 (Standby)
21 (Servo OFF)
20 (Servo amplifier has not been connected/servo amplifier power OFF)
Communication start valid
Communication invalid
During
communication
Communication start (Axis connection)
PLC READY [Y0]
QD77 READY [X0]
Write value by sequence program/GX Works2
Indefinite value
Value of internal memory (nonvolatile)
Servo parameter setting from
sequence program/GX Works2 (A)
PLC CPU
RUN
Initialization
completion
of QD77MS
Buffer memory/
internal memory
data setting
Axis connection completion
QD77MS
power ON
PLC READY
signal [Y0]
OFF ON (B)
Fig. 7.2 When the servo amplifier had started before the system's power supply ON
(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 servo amplifier had
started (Fig. 7.3 (B)).
Transfer the servo parameter : The data written from
sequence program/
GX Works2 before the
PLC READY signal [Y0]
ON (Fig. 7.3 (A)).
Servo parameter setting from
sequence program/GX Works2 (A)
PLC CPU
RUN
Initialization
completion
of QD77MS
Buffer memory/
internal memory
data setting
Axis connection completion
0 (Standby)
21 (Servo OFF)
20 (Servo amplifier has not been connected/servo amplifier power OFF)
Md.26 Axis operation
status
Communication
operation status with
servo amplifier
Servo parameter of
buffer memory/internal
memory
QD77MS
power ON
PLC READY [Y0]
QD77 READY [X0]
Write value by sequence program/GX Works2
Indefinite value
Value of internal memory (nonvolatile)
Communication start valid
Servo amplifier
power ON (B)
PLC READY
signal [Y0]
OFF ON (C)
Communication invalid
During
communication
Communication start
(Axis connection)
Transfer the servo parameter at this point to the
servo amplifier
Fig. 7.3 When the servo amplifier had started after the PLC READY signal [Y0] is turned OFF to ON
Summary of Contents for MELSEC-Q QD77MS
Page 1: ......
Page 27: ...A 26 MEMO...
Page 29: ...MEMO...
Page 101: ...3 34 Chapter 3 Specifications and Functions MEMO...
Page 232: ...5 111 Chapter 5 Data Used for Positioning Control MEMO...
Page 315: ...5 194 Chapter 5 Data Used for Positioning Control MEMO...
Page 337: ...6 22 Chapter 6 Sequence Program Used for Positioning Control...
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Page 364: ...6 49 Chapter 6 Sequence Program Used for Positioning Control...
Page 413: ...MEMO...
Page 433: ...8 20 Chapter 8 OPR Control MEMO...
Page 458: ...9 25 Chapter 9 Major Positioning Control MEMO...
Page 593: ...10 30 Chapter 10 High Level Positioning Control MEMO...
Page 625: ...11 32 Chapter 11 Manual Control MEMO...
Page 659: ...12 34 Chapter 12 Expansion Control MEMO...
Page 767: ...13 108 Chapter 13 Control Sub Functions MEMO...
Page 813: ...14 46 Chapter 14 Common Functions MEMO...
Page 831: ...15 18 Chapter 15 Dedicated Instructions MEMO...
Page 846: ...16 15 Chapter 16 Troubleshooting MEMO...
Page 892: ...16 61 Chapter 16 Troubleshooting MEMO...
Page 971: ...Appendix 62 Appendices MEMO...
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