Mitsubishi Electric MELSEC iQ-F Series User Manual page 19

Positioning instruction activation
Use "positioning instruction activation" to check whether or not a positioning instruction is being executed.
Even if no pulse is output, this flag is on while the instruction is being driven. Even after the drive contact of the positioning
instruction is turned off, this flag remains on until the pulse output is stopped. Use this flag to prevent simultaneous activation
of two or more positioning instructions for the same axis.
Special Device
Name
Positioning instruction activation
R: Read only
Precautions
Do not write to the pulse output monitor using a transfer instruction. This may change the value and cause abnormal
monitoring.
Positioning error occurrence
Setting method: Special Device
Use the positioning error occurrence to check whether or not an error specific to the positioning instruction occurs.
This flag turns on when an error specific to the positioning instruction occurs.
Special Device
Name
Positioning error occurrence
R/W: Read/Write
After the positioning error occurrence is turned on, an error code is stored in the corresponding positioning error (error code).
Precautions
The positioning error occurrence flag is not cleared by eliminating the error cause.
Turn on SM50 (Error Detection Reset Completion) from program or engineering tool, or use the continuation error batch clear
function in the module diagnosis window of GX Works3 to clear the flag. (GX Works3 Operating Manual)
Positioning error (error code)
Setting method: Special Device
Use the following devices to check the error code of an error that has occurred in the positioning operation.
For the error codes, refer to Page 167 Error Check.
Special Device
Name
Positioning error (error code)
R/W: Read/Write
After the positioning error occurrence flag turns on, an error code is stored in the device above. If multiple errors occur, the old
error is overwritten by a new error.
Precautions
The error code in the positioning error (error code) is not cleared by eliminating the error cause.
Turn on SM50 (Error Detection Reset Completion) from program or engineering tool, or the continuation error batch clear
function in the module diagnosis window of GX Works3 to clear the flag. (GX Works3 Operating Manual)
FX5 dedicated
Axis 1 Axis 2 Axis 3
SM5500 SM5501 SM5502
FX5 dedicated
Axis 1 Axis 2
SM5532 SM5533
FX5 dedicated
Axis 1 Axis 2
SD5510 SD5550
For compatibility with FX3
Axis 4 Axis 1 Axis 2
SM5503 SM8348 SM8358
Axis 3
SM5534
Axis 3
SD5590
R/W
Axis 3 Axis 4
SM8368 SM8378 R
R/W
Axis 4
SM5535 R/W
R/W
Axis 4
SD5630 R/W
4 POSITIONING PARAMETER
4.2 Details of Parameters
4
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