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MELSEC-Q
11 MANUAL CONTROL
11.3.5 Inching operation example
When executing inching operation while stop signal is turned ON:
If the JOG start signal is turned ON while the stop signal is ON, an error "Stop
signal ON at start" (error code: 106) will occur.
The inching operation can be re-started when the stop signal is turned OFF and
the JOG start signal is turned OFF and then turned ON.
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
PLC READY
signal [Y0]
QD75 READY
signal [X0]
Forward run JOG
start signal
[Y8,YA,YC,YE]
Axis stop signal
[Y4,Y5,Y6,Y7]
BUSY signal
[XC,XD,XE,XF]
If a JOG start signal is turned OFF and
then ON while the axis stop signal is ON,
an error "Stop signal ON at start" will occur.
Fig. 11.14 Operation when executing inching operation while stop signal is ON
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