Mitsubishi Electric MELSEC iQ-FX5 User Manual page 23

Start by the external command signal (DI)
When starting positioning control by inputting the external command signal (DI), the start command can be directly input into
the Simple Motion module. This allows the variation time equivalent to one scan time of the CPU module to be eliminated.
This is an effective procedure when operation is to be started as quickly as possible with the start command or when the
starting variation time is to be suppressed.
■Advance setting
Set the following data in advance. (The setting is carried out using a program.)
n: Axis No. - 1
Setting item
[Pr.42] External command
function selection
Set the external command signal (DI) to be used in "[Pr.95] External command signal selection".
Refer to the following for the setting details.
Page 379 Basic Setting
■Start method
Set "[Cd.3] Positioning start No." and enable "[Cd.8] External command valid" with a program. Then, turn ON the external
command signal (DI).
n: Axis No. - 1
Setting item
[Cd.3] Positioning start No.
[Cd.8] External command valid
Refer to the following for the setting details.
Page 470 Control Data
■Restriction
When starting by inputting the external command signal (DI), the start complete signal ([Md.31] Status: b14) will not turn ON.
■Starting time chart
• Operation example
[Cd.184] Positioning start signal
[Cd.191] All axis servo ON signal
[Md.26] Axis operation status
[Cd.190] PLC READY signal
READY signal
([Md.140] Module status: b0)
Start complete signal
([Md.31] Status: b14)
[Md.141] BUSY signal
Positioning complete signal
([Md.31] Status: b15)
Error detection signal
([Md.31] Status: b13)
External command signal
[Pr.42] External command
[Cd.3] Positioning start No.
[Cd.8] External command
Setting value Setting details
0 Set to "0: External positioning start".
Setting value Setting details
1 to 600 Set the positioning data No. to be started.
1 Set to "1: Validates an external command.".
Operation pattern
V
Positioning data No.
Servo OFF Standby
function selection
valid
1(00)
0
1
1 0
Buffer memory address
62+150n
Buffer memory address
4300+100n
4305+100n
Dwell time
t
1 START AND STOP
1.1 Start
1
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