Time Chart For Restarting - Mitsubishi Electric QD77MS User Manual

(2) Signal state
Signal name
PLC READY signal
READY signal
All axis servo ON
Synchronization flag
Interface
Axis stop signal
signal
M code ON signal
Error detection signal
BUSY signal
Start complete signal
Forced stop input signal
Stop signal
External
signal
Upper limit (FLS)
Lower limit (RLS)
: 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.

[5] Time chart for restarting

[QD77MS4 operation example]
Positioning start signal
All axis servo ON
Axis stop signal
PLC READY signal
READY signal
Start complete signal
BUSY signal
Positioning complete signal
Error detection signal
Chapter 6 Sequence Program Used for Positioning Control
ON PLC CPU preparation completed
ON QD77MS preparation completed
ON All axis servo ON
QD77MS buffer memory
ON
Accessible
OFF Axis stop signal is OFF
OFF M code ON signal is OFF
OFF There is no error
OFF BUSY signal is OFF
OFF Start complete signal is OFF
ON There is no forced stop input
OFF Stop signal is OFF
ON Within limit range
ON Within limit range
V
[Y10]
[Y1]
[Y4]
[Y0]
[X0]
[X10]
[XC]
[X14]
[X8]
Md. 26 Axis operation status
Cd. 6 Restart command
Fig. 6.14 Time chart for restarting
Signal state
0 8
0
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
6 - 72
Device
QD77MS2
QD77MS16
QD77MS4
Y0
X0
Y1
X1
Y4 to Y7 [Cd.180] Axis stop
X4 to X7 [Md.31] Status: b12
X8 to XB [Md.31] Status: b13
XC to XF X10 to X1F
X10 to X13 [Md.31] Status: b14
–
–
–
–
Dwell time
1 8
1 0
t
0