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Chapter 13 Control Sub Functions
(2) The following shows the speed change time chart.
[QD77MS4 operation example]
Cd. 15 Speed change request
Cd. 14 New speed value
In speed change
processing flag
BUSY signal
READY signal
Error detection signal
V
t
1
0
0
1
0
2000
0
Start complete signal
Dwell time
PLC READY signal
Positioning start signal
Positioning complete signal
[Y10]
[Y0]
[X0]
[X10]
[XC]
[X14]
[X8]
Md. 40
All axis servo ON
[Y1]
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
Fig. 13.26 Time chart for changing the speed from the PLC CPU
(3) Add the following sequence program to the control program, and write it to
the PLC CPU.
No.14 Speed change program
<Pulsate speed change command>
<Hold speed change command>
<Set speed change value
(20.00mm/min)>
<Set speed change request>
<Write speed change>
<Turn OFF speed change request
memory>
M11PLS
M12SET
M11PLS
K2000DMOVP D11
M11PLS
K1MOVP D13
TOP H0 K1514
D11 K3
M12RST
U0\
G1516
=
K0
483
490
494
X32
M11 X0C
M12
[QD77MS4 program example]