Outline Of Jog Operation - Mitsubishi Electric QD77MS User Manual

11.2 JOG operation

11.2.1 Outline of JOG operation

[QD77MS4 operation example]
Cd. 17 JOG speed
Acceleration for the acceleration
time selected in Pr. 32
PLC READY signal
All axis servo ON
READY signal
Forward run JOG start signal
[Y8, YA, YC, YE]
Reverse run JOG start signal
[Y9, YB, YD, YF]
BUSY signal[XC, XD, XE, XF]
JOG operation
In JOG operation, the forward run JOG start signal or reverse run JOG start signal
turns ON, causing pulses to be output to the servo amplifier from the Simple
Motion module while the signal is ON. The workpiece is then moved in the
designated direction.
Signal
Forward run JOG start signal
Reverse run JOG start signal
The following shows examples of JOG operation.
When the START signal turns ON, acceleration begins in the direction designated by the
1) 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.
When the workpiece being accelerated reaches the speed set in "[Cd.17] JOG speed", the
2)
movement continues at this speed. The constant speed movement takes place at 2) and 3).
When the START signal is turned OFF, deceleration begins from the speed set in "[Cd.17]
3) JOG speed", and continues for the deceleration time designated in "[Pr.33] JOG operation
deceleration time selection".
The operation stops when the speed becomes "0". At this time, the BUSY signal changes
4)
from ON to OFF.
ON
[Y0] OFF
ON
[Y1] OFF
ON
[X0]
OFF
OFF
OFF
OFF
QD77MS2
Y8, YA
Y9, YB
Forward JOG run
1) 2) 3)
ON
ON
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
Fig. 11.4 JOG operation
11 - 4
Chapter 11 Manual Control
QD77MS4
[Cd.181] Forward run JOG start
Y8, YA, YC, YE
[Cd.182] Reverse run JOG start
Y9, YB, YD, YF
Deceleration for the deceleration
time selected in Pr. 33
4)
Reverse JOG run
ON
QD77MS16