Manual Pulse Generator Operation; Outline Of Manual Pulse Generator Operation - Mitsubishi Electric MELSEC-Q Series User Manual

11.4 Manual pulse generator operation

11.4.1 Outline of manual pulse generator operation

Cd. 21 Manual pulse generator
enable flag
BUSY signal
Input pulses from
manual pulse generator
Start complete signal
( Md.31 Status:b14)
[Precautions]
1: If the input from the manual pulse generator stops, the machine will decelerate to a stop.
2: The start complete signal does not turn ON in manual pulse generator operation.
Manual pulse generator operation
In manual pulse generator operations, pulses are input to the Simple Motion
module from the manual pulse generator. This causes the same number of input
command to be output from the Simple Motion module to the servo amplifier, and
the workpiece is moved in the designated direction.
The following shows an example of manual pulse generator operation.
When "[Cd.21] Manual pulse generator enable flag" is set to "1", the BUSY signal turns
1)
ON and the manual pulse generator operation is enabled.
The workpiece is moved corresponding to the number of pulses input from the manual
2)
pulse generator.
The workpiece movement stops when no more pulses are input from the manual pulse
3)
generator.
When "[Cd.21] Manual pulse generator enable flag" is set to "0", the BUSY signal turns
4)
OFF and the manual pulse generator operation is disabled.
0
[X10 to X1F]
OFF
2
OFF
Fig. 11.16 Manual pulse generator operation
Important
Create the sequence program so that "[Cd.21] 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.
1) 2)
1
ON
Manual pulse generator operation enabled
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Chapter 11 Manual Control
Manual pulse
generator
operation stops
1
3) 4)
0
t