Checking Current Position And Operation Status - Mitsubishi Electric MELSEC-L02SCPU User Manual

7.5

Checking Current Position and Operation Status

The current position and operation status of the moving workpiece can be monitored in the special register.
(1) Checking a current position
Values indicating the current position are stored in the Axis 1 current feed value (SD1840, SD1841). The address
established by machine OPR is used as the reference.
(2) Checking an operation status
The Axis 1 axis operation status (SD1844) indicates the operation status of the axis.
Stored
value
0
1
2
3
4
5 In speed-position control (speed)
In speed-position control
6
7 Decelerating (axis stop ON)
8 Decelerating (JOG start OFF)
9
10
11
-1
Operating status
This is the status after the following operations:
• (Successful) completion of operation
• Power-on
Standby • When the CPU module is reset
• Error reset
• After JOG operation
• End of absolute position restoration
The axis has stopped successfully according to the Axis stop instruction
Stopped
(IPSTOP1).
In JOG operation JOG operation is in progress.
In OPR Machine OPR is in progress.
In position control Position control is in progress.
Speed control of speed/position switching control is in progress.
Position control of speed/position switching control is in progress.
(position)
The axis is decelerating according to the Axis stop instruction (IPSTOP1).
The axis is decelerating after the execution command for JOG start
instruction (IPJOG1) turned off.
In high-speed OPR Fast OPR is in progress.
In speed control Speed control is in progress.
Analyzing Absolute position restoration is in progress.
Error occurring An error is present.
CHAPTER 7 POSITIONING FUNCTION
Description
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