Handling Of Variable Commands, Programmable Parameter Input, And Programmable Compensation Data Input - Mitsubishi Electric E70 Series Instruction Manual

(Note) Reference position return and start position return
The reference position return command and start position return command are valid, but actual machine
motion (trace display) is partially different from the drawing by program check. As shown in the figure below,
when returning to the reference position via the intermediate point with the G28 or G30 command, positioning
to the intermediate point is done by a straight line and positioning from there to the reference position is done
by each axis ind ependently.
With the G29 command, positioning to the intermediate point is done by each axis independently.
Under program checking, however, positioning is always done by a straight line even when returning via the
intermediate point; this may cause a little difference from the trace display.
X
Movement to
intermediate point
(G28)
4.3.13 Handling of Variable Commands, Programmable Parameter Input, and Programmable
Compensation Data Input
If a program check is performed for a machining program for which the variable command data etc. is rewritten, all data
types are treated as shown in the following table after completion.
Data type
Parameter
Local variable
Common variable
Workpiece coordinate system
offset
Tool compensation amount
Basic machine coordinate system (G53)
Reference position return (G28)
Movement path in
trace mode (G29)
Movement to
intermediate point (G29)
Position move with
Intermediate point
G29 command
Saving data before
program check
×
○ / ×
○ / ×
○ / ×
○ / ×
#1
First reference
position
Movement path in
trace mode (G28)
Explanation
The programmable parameter input commands are set as
actual data.
(The data before the check is not saved.)
It is possible to return to the status prior to starting the program
check based on the "#1231 set03(bit0) " graphic check
interchangeable parameter value.
0:Returns to original status after check completion
1:Does not return to original status after check completion
E70 Series Instruction Manual
4.3 Program Check (2D)
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