6 - 57
Chapter 6 Sequence Program Used for Positioning Control
Servo ON conditions
Setting of servo parameter
PLC READY signal [Y0] ON
All axis servo ON [Y1] ON
Starting conditions
To start the control, the following conditions must be satisfied.
The necessary start conditions must be incorporated in the sequence program so
that the control is not started when the conditions are not satisfied.
(1) Operation state
Monitor item
Operation state
Buffer memory address
[Md.26] Axis operation status "0: Standby" or "1: Stopped"
2409+100n
n: Axis No.-1
(2) Signal state
Signal name
Signal state
Device
Interface
signal
PLC READY signal
ON PLC CPU preparation completed
Y0
READY signal
ON QD77GF preparation completed
X0
All axis servo ON
ON All axis servo ON
Y1
Synchronization flag ON
QD77GF buffer memory
Accessible
X1
Axis stop signal
OFF Axis stop signal is OFF
[Cd.180] Axis stop
M code ON signal
OFF M code ON signal is OFF
[Md.31] Status: b12
Error detection signal
OFF There is no error
[Md.31] Status: b13
BUSY signal
OFF BUSY signal is OFF
X10 to X1F
Start complete signal
OFF Start complete signal is OFF
[Md.31] Status: b14
External
signal
Forced stop input signal ON There is no forced stop input
–
Stop signal
OFF Stop signal is OFF
–
Upper limit (FLS)
ON Within limit range
–
Lower limit (RLS)
ON Within limit range
–
: When the synchronous setting of the PLC CPU is made in the nonsynchronous mode, this must be
provided as an interlock.
When it is made in the synchronous mode, no interlock must be provided in the program because the flag is
turned ON when calculation is run on the PLC CPU.
Summary of Contents for MELSEC Q Series
Page 2: ......
Page 30: ...A 28 MEMO ...
Page 32: ...MEMO ...
Page 97: ...3 29 Chapter 3 Specifications and Functions MEMO ...
Page 102: ...3 34 Chapter 3 Specifications and Functions MEMO ...
Page 282: ...5 162 Chapter 5 Data Used for Positioning Control MEMO ...
Page 374: ...7 16 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 376: ...MEMO ...
Page 400: ...8 24 Chapter 8 HPR Control MEMO ...
Page 425: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 528: ...9 128 Chapter 9 Major Positioning Control MEMO ...
Page 554: ...10 26 Chapter 10 High Level Positioning Control MEMO ...
Page 586: ...11 32 Chapter 11 Manual Control MEMO ...
Page 800: ...16 54 Chapter 16 Troubleshooting MEMO ...
Page 830: ...Appendix 30 Appendices MEMO ...
Page 833: ......