Mitsubishi Electric MELSEC-Q Series User Manual page 580

Operations when stroke limit error occurs
When the hardware stroke limit error or the software stroke limit error is detected
(Note-1)
of "[Md.26] Axis operation status", "Manual pulse generator operation" will
continue
the outside direction of the limit range are not accepted, but operation can be
executed within the range.
(Note-1): Only when the feed current value or the feed machine value overflows or
Upper/lower
limit signal
Manual pulse generator operation timing and processing time
The following drawing shows details of the manual pulse generator operation
timing and processing time.
Cd. 21 Manual pulse generator
enable flag
Input pulses from
manual pulse generator
BUSY signal [X10 to X1F]
Start complete signal
( Md.31 Status:b14)
Md. 26 Axis operation status
Positioning operation
Fig. 11.17 Manual pulse generator operation timing and processing times
during operation, the operation will decelerate to a stop. However, in case
(Note-1)
. After stopping, input pulses from a manual pulse generator to
underflows during deceleration, the manual pulse generator operation will
terminate as "error occurring". To carry out manual pulse generator operation
again, "[Cd.21] Manual pulse generator enable flag" must be turned OFF once
and turn ON.
V
Manual pulse generator
operation possible
ON
0 1
t1
The start complete signal does not turn ON in manual pulse generator operation.
Standby (0)
Manual pulse generator operation (4)
11 - 26
Manual pulse
generator operation
Manual pulse generator
operation not possible
OFF
t3
t2
Chapter 11 Manual Control
0
t4
Standby (0)