Siemens sinumerik 840d Programming Manual page 271

04.00
8
8.3 Online tool offset PUTFTOCF, PUTFTOC, FTOCON, FTOCOF
840D
NCU 572
NCU 573
An offset is always applied for the wear parameters
for the current tool side or for the left-hand tool side
on inactive tools.
Where the offset is identical for several tool sides,
the values should be transferred automatically to the
second tool side by means of a chaining rule (see
Operator's Guide for description).
If online offsets are defined for a machining channel,
you cannot change the wear values for the current
tool on this channel from the machining program or
by means of an operator action.
The online tool offset is also applied with respect to
the constant grinding wheel peripheral speed
(GWPS) in addition to tool monitoring (TMON) and
centerless grinding (CLGON).
Sequence
PUTFTOCF = Continuous write
The dressing process is performed at the same time
as machining:
Dress across complete grinding wheel width with
dresser roll or dresser diamond from one side of a
grinding wheel to the other.
Machining and dressing can be performed on
different channels. If no channel is programmed, the
offset takes effect in the active channel.
PUTFTOCF(Polynomial_No., Ref_value, Length1_2_3, Channel, Spindle)
Tool offset is changed continuously on the
machining channel according to a polynomial
function of the first, second or third degree, which
must have been defined previously with FCTDEF.
The offset, e.g. changing actual value, is derived
from the "Reference value" variable.
If not spindle number is programmed, the offset
applies to the active tool.
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
840Di
Tool Offsets
8
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