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MELSEC-Q
11 MANUAL CONTROL
REMARK
•
One QD75MH module can be connected to one manual pulse generator.
•
The QD75MH module can simultaneously command to the axis 1 to axis 4 servo
amplifier by one manual pulse generator.
(axis 1 to axis 4 simultaneous operation is possible.)
Errors during operation
When the operation is stopped by the stroke limit (limit signal OFF), manual pulse
generator operation can be performed in the direction in which the limit signal turns
ON after an error reset. (An error will occur again if pulse input is provided in the
direction in which the limit signal turns OFF is turned ON.)
Upper/lower
limit signal
Manual pulse generator
operation possible
Manual pulse generato
r
operation not possible
V
Manual pulse
generator operation
ON
OFF
Manual pulse generator operation timing and processing time
The following drawing shows details of the manual pulse generator operation
timing and processing time.
Manual pulse generator input
pulses
t1
t3
t4
BUSY signal [XC,XD,XE,XF]
Standing by
Positioning start complete
signal [X10, X11, X12, X13]
Positioning operation
The start complete signal does not turn ON in manual pulse generator operation.
0
0
1
Cd. 21 Manual pulse generator
enable flag
Md. 26 Axis operation status
Standing by In manual pulse generator operation
t2
Fig. 11.19 Manual pulse generator operation timing and processing times
Normal timing times Unit : ms
t1 t2 t3 t4
0 to 2.6 10.0 to 29.2 65.0 to 86.0 28.4 to 57.6
•
Delays may occur in the t1 timing time due to the operation status of other axes.