Siemens SINUMERIK 840Di Function Manual page 1695
Basic machine
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- Diagnostic manual (880 pages) ,
- Manual (552 pages) ,
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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 MMC.
• 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)
In this case, an error is detected in the NC block containing the tool preparation (T
programming), however this error is to be ignored initially. Processing continues until the tool
change request (usually M06) is executed. The program is to stop at this point.
The programmed T address can contain any number of program lines ahead of the M06
command, or the two instructions can appear in different (sub)programs. For this reason, it is
not usually possible to modify a block or a compensation block, which has already been
executed.
The operator has the same intervention options as for = 0.
Missing data can be reloaded. In this case, however, T must be
programmed with "Overstore".
If a program error has occurred, the line with the error cannot be corrected (Txx); only the
line, at which the program stopped, and which generated the alarm, can be edited (only if
MD22562 $MC_TOOL_CHANGE_ERROR_MODE bit0 = 1).
The sequence is as follows:
Txx
....
M06
Tool Compensation (W1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
; Error! Data set with xx does not exist.
; Detect state; detect xx;
; continue in program
; Detect bit memory "xx missing" → output alarm,
; stop program
; Correct block with, e.g., Tyy M06, start,
; block Tyy M06 interpreted and OK.
; Machining continues.
Detailed Description
2.1 Tool
2-15
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