11 - 4
MELSEC-Q
11 MANUAL CONTROL
11.2 JOG operation
11.2.1 Outline of JOG operation
Important
Use the hardware stroke limit function when carrying out JOG operation near the
upper or lower limits. (Refer to Section "12.4.4").
* If the hardware stroke limit function is not used, the workpiece may exceed the
moving range, causing an accident.
JOG operation
In JOG operation, the FORWARD run JOG start signal (Y8, YA, YC, YE) or
REVERSE run JOG start signal (Y9, YB, YD, YF) turns ON, causing pulses to be
output to the servo amplifier from the QD75 while the signal is ON. The workpiece
is then moved in the designated direction.
The following shows examples of JOG operation.
1)
When the START signal turns ON, acceleration begins in the direction designated by the
START signal, and continues for the acceleration time designated in "
Pr.32
JOG
operation acceleration time selection". At this time, the BUSY signal changes from OFF to
ON.
2)
When the workpiece being accelerated reaches the speed set in "
Cd.17
JOG speed",
the movement continues at this speed. The constant speed movement takes place at 2)
and 3).
3)
When the START signal is turned OFF, deceleration begins from the speed set in
"
Cd.17
JOG speed", and continues for the deceleration time designated in "
Pr.33
JOG operation deceleration time selection".
4)
The operation stops when the speed becomes "0". At this time, the BUSY signal changes
from ON to OFF.
PLC READY signal [Y0]
OFF
ON
Reverse run JOG start signal
[Y9, YB, YD, YF]
OFF
ON
OFF
ON
BUSY signal[XC, XD, XE, XF]
OFF
ON
Forward JOG run
Reverse JOG run
QD75 READY signal [X0]
Forward run JOG start signal
[Y8, YA, YC, YE]
Cd. 17 JOG speed
Acceleration for the acceleration
time selected in Pr. 32
Deceleration for the deceleration
time selected in Pr. 33
1)
2)
3)
4)
OFF
ON
All axis servo ON [Y1]
OFF
ON
Fig. 11.4 JOG operation
Содержание MELSEC-Q QD75M
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Страница 332: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
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Страница 347: ...MEMO ...
Страница 477: ...9 116 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Страница 539: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO ...
Страница 663: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Страница 771: ...Appendix 2 MELSEC Q APPENDICES MEMO ...
Страница 845: ...Appendix 76 MELSEC Q APPENDICES MEMO ...
Страница 855: ...Index 10 X X0 QD75 READY 3 15 X1 Synchronization flag 3 15 Z Zero speed Pr 130 5 74 ...