Command In-Position Function - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

(2) Program example
Perform the teaching operation with the following program.
Page 495 Teaching program
• Before setting positioning data, check the teaching function and teaching procedure.
• The positioning addresses to be written are absolute address (ABS) values.
• When the positioning operation is normally completed with the written positioning data, registering the
positioning data in the flash ROM of the positioning module is recommended.

Command in-position function

Command in-position function checks the remaining distance to the stop position during the automatic deceleration of the
positioning control, and turns on the flag. This flag is called Command in-position flag. The command in-position flag is used
as a front-loading signal indicating beforehand the completion of the position control.
Control details
The following shows the control details of the command in-position function.
• When the remaining distance to the stop position during the automatic deceleration of the position control becomes equal
to or less than the value set in [Pr.16] Command in-position width, the Command in-position flag ([Md.31] Status: b2) is
turned on.
V
Positioning
ON
Command in-position flag
([Md.31] Status: b2)
• The command in-position width check is performed every 0.88 ms.
Control precautions
• The command in-position width check will not be performed in the following cases.
Speed control
In speed control of the speed-position switching control
In speed control of the position-speed switching control
V
Start of position
control
Command in-position flag
([Md.31] Status: b2)
OFF
OFF
Command in-position width setting value
Command in-position width setting value
Start of speed-position
switching control
ON
Execution of command in-position width check
t
Speed→Position switch
Command in-position width setting value
Execution of command in-position width check
12 CONTROL SUB FUNCTION
t
287
12.9 Other Functions
12