Mitsubishi Electric MELDAS C6 Programming Manual page 153

12. Tool Offset Functions
Detailed description
(1) Program error (P171) will occur if this command is input when the specifications are not
available.
(2) G10 is an unmodal command and is valid only in the commanded block.
(3) The G10 command does not contain movement, but must not be used with G commands
other than G21, G22, G54 to G59, G90 or G91.
(4) If an illegal L No. or offset No. is commanded, the program errors (P172 and P170) will occur
respectively.
If the offset amount exceeds the maximum command value, the program error (P35) will
occur.
(5) Decimal point inputs can be used for the offset amount.
(6) The offset amounts for the external workpiece coordinate system and the workpiece
coordinate system are commanded as distances from the basic machine coordinate system
zero point.
(7) The workpiece coordinate system updated by inputting the workpiece coordinate system will
follow the previous modal (G54 to G59) or the modal (G54 to G59) in the same block.
(8) L2 can be omitted when the workpiece offset is input.
(9) Do not command G10 in the same block as fixed cycles and subprogram call commands.
This will cause malfunctioning and program errors.
Example of program
(1) Input the offset amount.
• • • • • • ; G10L10P10R–12345 ; G10L10P05R98765 ; G10L10P30R2468 ; • • •
H10=–12345 H05=98765 H30=2468
(2) Updating of offset amount
(Example 1) Assume that H10 = -1000 is already set.
N1 G01 G90 G43 Z – 100000 H10; (Z = –101000)
N2 G28 Z0;
N3 G91 G10 L10 P10R – 500 ;
N4 G01 G90 G43 Z – 100000
H10 ;
145
12.4 Programmed offset input
(The mode is the G91 mode, so –500
is added.)
(Z = –101500)