Siemens SINUMERIK 840D sl Function Manual page 1379

MD22550 $MC_TOOL_CHANGE_MODE = 1
T= "T no."
M06
The following problems can occur if tool management is not active:
● D compensation data set missing
● Error in part program
Note
The "tool not in magazine" problem cannot be detected since the NCK did not have access
to any magazine information during tool compensation.
D compensation data set missing
Program execution is interrupted at the block containing the invalid D value (regardless of the
value of machine data MD22550). The operator must either correct the program or reload the
missing data set.
To do this, he needs the D number for the flat D number function, or otherwise the T number
as well. These parameters are transferred when the alarm is triggered.
Error in part program
The options for intervention in the event of an error depend on how the tool change was
programmed, defined via the machine data:
MD22550 $MC_TOOL_CHANGE_MODE (new tool compensation with M function).
Tool change with T programming (MD22550 = 0)
In this case, the "Compensation block" function available in the NCK is used. The NC program
stops at the NC block in which a programmed T value error was detected. The "Compensation
block" is executed again when the program is resumed.
The operator can intervene as follows:
● Correct the part program.
● Reload the missing cutting edge compensation data from the HMI.
● Include the missing cutting edge compensation data in the NCK using "Overstore".
Following operator intervention, the START key is pressed and the block, which caused the
error, is executed again. If the error was corrected, the program is continued. Otherwise, an
alarm is output again.
Tool change with T and M06 programming (MD22550 = 1)
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
; Tool preparation
;Change tool
; (the number of the tool-change M code can be changed),
; i.e., when M06 is programmed a new D compensation becomes
; active in the NCK (see
; machine data MD20270 $MC_CUTTING_EDGE_DEFAULT)
W1: Tool offset
18.2 Tool
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