MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 454)

11 - 14
MELSEC-Q
11 MANUAL CONTROL
When both the "forward run JOG start signal" and "reverse run JOG start
signal" are turned ON simultaneously for one axis
When both the "forward run JOG start signal" and "reverse run JOG start signal"
are turned ON simultaneously for one axis, the "forward run JOG start signal" is
given priority. In this case, the "reverse run JOG start signal" is validated when the
QD75 BUSY signal is turned OFF.
If the forward run JOG operation is stopped due to stop or axis error by a stop
signal, the reverse run JOG operation will not be executed even if the "reverse run
JOG start signal" turns ON.
OFF
ON
OFF
ON
BUSY signal[XC, XD, XE, XF]
OFF
ON
Forward run JOG operation
t
The reverse run JOG
start signal is ignored.
Reverse run JOG operation
Forward run JOG start signal
[Y8, YA, YC, YE]
Reverse run JOG start signal
[Y9, YB, YD, YF]
Fig. 11.8 Operation when both the forward run JOG start signal and reverse run JOG start signal are
turned ON simultaneously