
B–63173EN–1/01
5. AUTOMATIC OPERATION
215
Dry run is valid only for automatic operation.
The tool is moved at a constant feedrate(*1) regardless of the feedrate
specified in the program. This function is used, for example, to check the
movement of the tool without a workpiece.
CAUTION
This feedrate depends on the specified parameters, the
manual rapid traverse switching signal (RT), manual
feedrate override signals (*JV0 to *JV15), and whether the
command block specifies rapid traverse or cutting feed, as
listed in the table below.
Manual rapid
traverse
Program command
switching
signal (RT)
Rapid traverse Feed
1 Rapid traverse rate Dry run feedrate JV
max
*2
0 Dry run speedJV,or rapid
traverse rate *1
Dry run feedrateJV *2
Max. cutting feedrate Setting by parameter No.1422 or No.1430
Rapid traverse rate Setting by parameter No.1420
Dry run feedrate Setting by parameter No.1410
JV Manual feedrate override
JV
max
Maximum value of manual feedrate override
*1:Dry run feedrate JV when parameter RDR (bit 6 of No. 1401) is 1.
Rapid traverse rate when parameter RDR is 0.
*2 Clamped by max. cutting feedrate.
[Classification] Input signal
[Function] Enables dry run.
[Operation] When this signal is set to 1, the tool is moved at the feedrate specified for
dry run.
When this signal is set to 0, the tool is moved normally.
CAUTION
When the dry run signal is changed from 0 to 1 or 1 to 0
during the movement of the tool, the feedrate of the tool is
first decelerated to 0 before being accelerated to the
specified feedrate.
5.3.2
Dry Run
General
Signal
Dry run signal
DRN <G046#7>