Siemens SINUMERIK 840Di sl Programming Manual page 295
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Also See for SINUMERIK 840Di sl:
- Commissioning manual (632 pages) ,
- Operating manual (470 pages) ,
- Function manual (274 pages)
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Example
Path specification: The grinding wheel oscillating in the Z direction is moved to the workpiece
in the X direction using the handwheel.
The operator can then adjust the position of the tool until the spark generation is constant.
When "Delete distance-to-go" is activated, the program goes to the next NC block and
machining continues in NC mode.
Requirements
A handwheel must be assigned to the axes to be traversed for the handwheel override
function. For the precise approach see HMI Operator's Guide. The number of handwheel
pulses per graduated position is defined in machine data.
Traverse path axes with handwheel override, FD
The following preconditions apply to handwheel overrides for path axes:
in the NC block with the programmed handwheel override
• a G1, G2 or G3 motion command must be active,
• exact stop G60 must be switched on, and
• the path feedrate must be specified with G94 mm/min or inch/min.
Feed override
The feed override acts only on the programmed feed, not on the travel movement generated
by the handwheel (except if feed override = 0).
Example:
N10 G1 X... Y... F500...
N50 X... Y... FD=700
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Feedrate Control and Spindle Motion
7.7 Feedrate with handwheel override (FD, FDA)
295
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