beautypg.com

5 inching operation example, Melsec-q, Point – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 465

background image

11 - 25

MELSEC-Q

11 MANUAL CONTROL

11.3.5 Inching operation example

When "stop signal" is turned ON during inching operation:

If "stop signal" is turned ON during inching operation, the inching operation will be
stopped.
While the stop signal is turned ON, the JOG start signal is ignored.
The inching operation can be re-started when the stop signal is turned OFF and
then re-turned ON.

PLC READY

signal [Y0]

OFF

ON

BUSY signal
[XC,XD,XE,XF]

OFF

ON

A JOG start signal OFF ON

while the stop signal is ON will be ignored.

Axis stop signal
[Y4,Y5,Y6,Y7]

OFF

ON

QD75 READY
signal
[X0]

ON

OFF

Forward run JOG
start signal
[Y8,YA,YC,YE]

OFF

ON

Fig. 11.15 Operation when stop signal is turned ON during inching operation

POINT

The QD75 will not accept "JOG start signal" while "stop signal" is turned ON.