Siemens SINUMERIK Series Function Manual

W4: Grinding-specific tool offset and tool monitoring
17.2 Online tool offset
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
817
General information
An online tool offset can be activated for every grinding tool in any channel.
The online tool offset is generally applied as a length compensation. Like geometry and wear
data, lengths are assigned to geometry axes on the basis of the current plane as a function
of the tool type.
The grinding spindle monitoring function remains active when an online tool offset is
selected.
Note
The offset always corrects the wear parameters of the selected length. If the length
compensation is identical for several cutting edges, then a chaining specification must be
used to ensure that the values for the 2nd cutting edge are automatically corrected as well.
If online offsets are active in the machining channel, then the wear values for the active tool
in this channel may not be changed from the machining program or via operator inputs.
Modifications to the radius wear (P15) are not taken into account until the tool is reselected.
The online offset is also applied to the constant grinding wheel peripheral speed (GWPS),
i.e. the spindle speed is corrected by the corresponding value.
Instructions
The following commands are provided for online tool offsets:
Command Meaning
FCTDEF
<polynomial no.>, <lower limit>, <upper limit>, <coefficient 0>,
<coefficient 1>, <coefficient 2>, <coefficient 3>)
Parameterize function
(up to 3rd degree polynomial)
(Fine Tool Offset Definition)
PUTFTOCF
(<polynomial no.>, <reference value>, <length1_2_3>, <channel
no.>, <spindle no.>)
Write online tool offset
continuously
(Put Fine Tool Offset Compensation)
PUTFTOC
(<value>, <length1_2_3>, <channel no.>, <spindle no.>)
Write online tool offset
discretely
(Put Fine Tool Offset Compensation)
FTOCON
Activation of online tool offset
(Fine Tool Offset Compensation ON)
FTOCOF
Deactivation of online tool offset
(Fine Tool Offset Compensation OFF)
Note
Changes to the correction values in the TOA memory do not take effect until T or D is
programmed again.
References:
Programming Manual, Job Planning

Siemens SINUMERIK Series Specifications

General

Axes Control	Up to 31 axes
Category	Control Unit
Manufacturer	Siemens
Series	SINUMERIK
Control Type	CNC
Communication Interfaces	Ethernet, USB
Operating Temperature	0°C to 45°C
Protection Class	IP20
Power Supply	24V DC
Display	Color TFT LCD