Siemens SINUMERIK 840Di sl Operating Manual page 455

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A
01/2008
Zero/work offset
O
OEM
Oriented spindle stop
Oriented tool retraction
Override
P
Parameters
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
Specification of a new reference point for a coordinate system through
reference to an existing origin and a → frame.
1. Settable
SINUMERIK 840D: A configurable number of settable work offsets
are available for each CNC axis. The offsets - which are selected
by means of G functions - take effect alternately.
2. External
In addition to all the offsets which define the position of the
workpiece zero, an external work offset can be overlaid by means
of the
handwheel (DRF offset) or
from the PLC.
3. Programmable
It is possible to program work offsets for all path and positioning
axes by means of the TRANS statement.
The scope for implementing individual solutions (OEM applications)
for the SINUMERIK 840D has been provided for machine
manufacturers, who wish to create their own operator interface or
integrate process-oriented functions in the control.
Stops the workpiece spindle with a specified orientation angle, e.g., to
perform an additional machining operation at a specific position.
RETTOOL: If machining is interrupted (e.g., when a tool breaks), a
program command can be used to retract the tool in a user-specified
orientation by a defined distance.
Manual or programmable control feature, which enables the user to
override programmed feedrates or speeds in order to adapt them to a
specific workpiece or material.
1. The S7-300 uses two types of parameters:
Parameters of a STEP 7 instruction A parameter of a STEP 7
-
instruction is the address of the operand to be edited or a
constant.
Parameter of a → parameter block
-
A parameter of a parameter block determines the behavior of a
module.
A
Appendix
B
Terms
A-455

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