Mitsubishi Electric MELSEC-L LD75P User Manual page 451

(3) Current value changing procedure
The following shows the procedure for changing the current value to a new value.
(4) Setting method for the current value changing function
The following shows an example of a program and data setting to change the current value to a new value with
the positioning start signal. (The "[Md.20] Current feed value is changed to "5000.0m" in the example shown.)
(a) Set the following data.
(Use the start time chart shown in section (b) below as a reference, and set data using the program shown in
section (c).)
Setting item
[Cd.3] Positioning start No.
[Cd.9] Current value changing
Refer to  Page 211, Section 5.7 for information on the setting details.
(b) The following shows a start time chart.
[Y10]
Positioning start signal
[Y0]
PLC READY signal
[X0]
LD75 READY signal
[X10]
Start complete signal
[XC]
BUSY signal
Positioning complete signal [X14]
[X8]
Error detection signal
1)
Write the current value to " Cd. 9 Current value changing"
2)
Write "9003" in " Cd. 3 Positioning start No."
Turn ON the positioning start signal.
3)
Setting
value
9003 Set the start No. "9003" for the new current value.
50000 Set the new "[Md.20] Current feed value".
V
Current feed value
Md.20
Positioning start No.
Cd.3
Current value changing
Cd.9
CHAPTER 9 MAJOR POSITIONING CONTROL
Setting details
Start of data No. 9003
Address during positioning
execution
Data No. during positioning
execution
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
1500 1600 1700 1800
1506 1606 1706 1806
1507 1607 1707 1807
t
50000
9003
50000
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