Detailed Description
2.3 Feedrate control
Feeds (V1)
2-36 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Dwell (sparking out time) and retraction path are programmed under separate addresses in
the block:
ST=...
Dwell (for grinding sparking out time)
SR=...
Retraction path
These addresses apply non-modally.
Programming axial motion
The axial feedrates are programmed under address FA and remain valid until an input signal
is present. They act modally.
FMA[2,x]=... to FMA[7,x]=... can be used to program up to 6 further feedrates per
axis in the block.
The first expression in square brackets indicates the bit number of the input that activates
the feedrate when changed. The second expression indicates the axis to which the feedrate
applies.
Example:
FMA[3,Y]=1000 ;Axial feedrate for Y axis,
;corresponds to input bit 3
Bits 2 to 7 are permissible for the numerical expansion of the axial feedrate. The values
programmed under FMA are active non-modally. The feedrate programmed under FA applies
to the next block.
Dwell (sparking out time) and retraction path can also be defined for a single axis:
STA[x]=...
;Dwell (sparking out time), axis-specific
SRA[x]=...
;Retraction path, axis-specific
The expression in square brackets indicates the axis for which the sparking out time and
retraction path apply.
STA[X]=2.5 ;Sparking out time 2.5 seconds
SRA[X]=3.5 ;Retraction path 3.5 (unit e.g.,: mm)
These addresses apply non-modally.
If feedrates, a sparking out time (dwell) or retraction path are programmed for an axis on
account of an external input, this axis must not be programmed as a POSA axis in this block
(positioning axis beyond end of block).
When the input for the sparking out time or retraction path is activated, the distance-to-go for
the path axes or the particular single axis is deleted and the dwell or retraction is started.
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