Manual Pulse Generator Operation; Outline Of Manual Pulse Generator Operation - Mitsubishi A1SD75M3 User Manual

11 MANUAL CONTROL

11.3 Manual pulse generator operation

11.3.1 Outline of manual pulse generator operation

Cd 22 Manual pulse
generator enable flag
BUSY signal [X4, X5, Y6]
Manual pulse
generator input
Positioning start complete
2
*
signal
[Precautions]
1
* When the input from the manual pulse generator stops, the output of the position/speed command
to the servo amplifier is completed with a delay of one control cycle time (120 to 180ms).
2
* The start complete signal does not turn ON in manual pulse generator operation.
Important
Create the sequence program so that " Cd.22 Manual pulse generator enable flag"
is always set to "0" (disabled) when a manual pulse generator operation is not
carried out.
* Mistakenly touching the manual pulse generator when the manual pulse
generator enable flag is set to "1" (enable) can cause accidents or incorrect
positioning.
Manual pulse generator operation
In manual pulse generator operation, pulses are input to the AD75 from the
manual pulse generator to output the position/speed command from the AD75 to
the servo amplifier by the number of input pulses, moving the work piece in the
designated direction.
The following shows and example of manual pulse generator operation.
When the " Cd.22 Manual pulse generator enable flag" is set to "1", the BUSY signal
1)
turns ON and the manual pulse generator operation is enabled.
The workpiece is moved corresponding to the No. of pulses input from the manual pulse
2)
generator.
The workpiece movement stops when no more pulses are input from the manual pulse
3)
generator.
When the " Cd.22 Manual pulse generator enable flag" is set to "0", the BUSY signal
4)
turns OFF and the manual pulse generator operation is disabled.
1) 2)
0 1
ON
OFF
OFF
[X1, X2, X3]
Manual pulse generator operation enabled
Fig. 11.11 Manual pulse generator operation
11 - 17
MELSEC-A
Manual pulse
generator
1
operation stops
*
3) 4)
0
t