Siemens SINUMERIK 840Di Function Manual page 1606
Basic machine
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Also See for SINUMERIK 840Di:
- Diagnostic manual (880 pages) ,
- Manual (552 pages) ,
- System overview (55 pages)
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Brief Description
1.1 Brief description
Axis assignment for feedrates
Feedrates can be assigned variably to axes according to technological requirements.
The following assignments are supported:
• Separate feedrates for working plane and infeed axis
• Variable axis assignment for path feedrate
• Feedrate for positioning axes
Feedrate control
The programmed feedrate can be modified for adaptation to changes in technological
conditions during machining or for test purposes.
• Via the machine control panel
• Via the operator panel
• Via the PLC
• Via a program command
Feedrate interpolation
To permit flexible definition of the feedrate characteristic, the feedrate programming
according to DIN 66205 has been extended by linear and cubic characteristics.
The cubic profiles can be programmed directly or as interpolating spline.
You can program the following feedrate profiles:
• FNORM
• FLIN
• FCUB
• FPO
1-2
Behavior as per DIN 66025 (default setting).
An F value programmed in the block is applied over the entire path of the block, and is
subsequently regarded as a fixed modal value.
An F value programmed in the block is positioned from the current value at the start of the
block to the end of the block linearly across the path distance and applies as a modal
value thereafter.
The F values programmed non-modally (relative to the end of the block) are connected by
a spline. The spline starts and ends at a tangent to the previous or subsequent define
feedrate. If the F address is missing in a block, the last F value programmed is used
instead.
The F address [syntax: F=FPO (...,...,...)] designates the feedrate response over a
polynomial from the current value to the end of the block in which it has been
programmed. The end value then applies as a modal value.
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Feeds (V1)
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