Mitsubishi Electric MELSEC-L LD75D, User Manual

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6.5
Program Details
6.5.1
Initialization program
(1) OPR request OFF program
This program forcibly turns OFF the "OPR request flag" ([Md.31] Status: b3) which is ON.
When using a system that does not require OPR, assemble the program to cancel the "OPR request" made by
the LD75 when the power is turned ON, etc.
(a) Data required to be set
Set the following data to use the OPR request flag OFF request.
Refer to

Page 211, Section 5.7 for the information on detail settings.
(b) Time chart for OPR request OFF
(2) External command function valid setting program
This program is used to validate the "external command signal" beforehand when using the external command
functions (external start, speed change, speed-position switching, position-speed switching, skip). (Set which
function to use beforehand in "[Pr.42] External command function selection".)
Set the following data to validate the "external command signal".
Refer to

Page 211, Section 5.7 for the information on detail settings.
Setting item
Setting
value
Setting details
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
[Cd.19] OPR request flag OFF request 1 Set to "1: Turn OPR request flag OFF". 1521 1621 1721 1821
Setting item
Setting
value
Setting details
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
[Cd.8] External command valid 1 Set to "1: Validate external command". 1505 1605 1705 1805
OFF
ON
OFF
ON
OFF
0 1 0
ON
[Y0]
[X0]
OPR request flag OFF request
OPR request flag
PLC READY signal
LD75 READY signal
Status: b3 [ ]
Md.31
Cd.19