Siemens SINUMERIK 828D Turning, Руководство по эксплуатации функций

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V1: Feedrates
17.2 Path feedrate F
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1385
17.2.5 Feedrate for G331/G332, rigid tapping
G331
(tapping) and
G332
(tapping retraction) can be used to tap a thread without a compensating chuck (rigid
tapping) if the spindle is technically capable of operating in position control mode.
Speed S, feedrate F, thread lead
A revolutional feedrate [mm/rev.] is used for
G331
and
G332
. The revolutional feedrate is defined by
programming the thread lead increase [mm/rev.].
The speed of the axes for the thread length is calculated from the programmed spindle speed
S
and the thread
lead.
Feedrate
F
[mm/min] = speed
S
[rev/min] * thread lead [mm/rev]
Override
The revolutional feedrate in
G331
and
G332
can be influenced by an override.
Depending on the configuration, the override affects either the spindle speed or the path feedrate:
MD12090 $MN_OVR_FUNCTION_MASK
Note
For further information about programming
G63
/
G331
/
G332
, please see:
References:
Programming Guide, Fundamentals
Programming Guide, Cycles
Bit Value Significance
0 0 The override influences the spindle speed (initial setting).
Depending on the setting in the machine data:
MD12080 $MN_OVR_REFERENCE_IS_PROG_FEED
the override is related either to the programmed spindle speed or to the configured
spindle speed limitation.
1 The override influences the path feedrate
Depending on the setting in machine data:
MD12082 $MN_OVR_REFERENCE_IS_MIN_FEED
the override is related either to the programmed path feedrate or to the configured
path feedrate limitation.
Note
The following overrides are not effective in
G331
and
G332
:
• Programmable path feedrate override
OVR
• Rapid traverse override