Mitsubishi Electric MELSEC-Q QD75M User Manual page 321

6 PLC PROGRAM USED FOR POSITIONING CONTROL
Setting item
Cd.6
Restart command
Refer to Section 5.7 "List of control data" for details on the setting details.
Interface
signal
External
signal
: 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.
REMARK
Restarting after stopping is possible even for the following control.
•
Incremental system position control
•
Continuous path control
[3] Control data requiring setting
Set the following data to execute restart.
Setting
value
1 Set "1: Restarts".
[4] Restarting conditions
The following conditions must be satisfied when restarting. (Assemble the
required conditions into the PLC program as an interlock.)
(1) Operation state
Md.26
" Axis operation status" is "1: Stopped"
(2) Signal state
Signal name
PLC READY signal
QD75 READY signal
All axis servo ON
Synchronization flag
Axis stop signal
M code ON signal
Error detection signal
BUSY signal
Start complete signal
Stop signal
Upper limit (FLS)
Lower limit (RLS)
•
Continuous positioning control
•
Block start
Setting details
Signal state
ON PLC CPU preparation completed
ON QD75 preparation completed
ON All axis servo ON
QD75 buffer memory
ON
Accessible
OFF Axis stop signal is OFF
OFF M code ON signal is OFF
OFF No error is present
OFF BUSY signal is OFF
OFF Start complete signal is OFF
OFF Stop signal is OFF
ON Within limit range
ON Within limit range
6 - 68
MELSEC-Q
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
1503 1603 1703 1803
Device
Axis 1 Axis 2 Axis 3 Axis 4
Y0
X0
Y1
X1
Y4 Y5 Y6 Y7
X4 X5 X6 X7
X8 X9 XA XB
XC XD XE XF
X10 X11 X12 X13
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–
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