Siemens SINUMERIK 840D sl, Руководство по эксплуатации функций

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Detailed description
2.3 Feedrate control
Basic logic functions: Feeds (V1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
59
Constraints
• Different end-of-motion criteria will affect how quickly or slowly part program blocks are
completed. This can have side effects for technology cycles and PLC user parts.
• The PLC user program must be expanded if the servo parameter set is to be changed
both inside a part program or synchronous action and the PLC.
• After POWER ON, the following initial settings are made:
Percentage acceleration override for all singleaxis
interpolations
100%
end-of-motion criterion for all singleaxis interpolations
FINEA
Servo parameter set defined by the NC 1
• When the operating mode is changed from AUTO ⇒ JOG, the programmed dynamic
response changes remain valid.
• In the event of a
RESET,
the last programmed value remains for the part program
specifications. The settings for main-run interpolations do not change.
• Block search:
The last end-of-motion criterion programmed for an axis is collected and output in an
action block. The last block with a programmed end-of-motion criterion that was
processed in the search run serves as a container for all programmed end-of-motion
criteria for all axes.
Example:
N01 G01 POS[X]=20 POS[Y]=30 IPOENDA[X] IPOENDA[Y]
N02 POS[Z]=55 FINEA[Z]
N03 $A_OUT[1]=1
N04 POS[X]=100 COARSEA[X]
N05 ......
TARGET:
; Block search target
•
In this example,
N04
serves as a container for all programmed end-of-motion criteria.
Two action blocks are saved. The digital output (
N03
) is issued in the first action block
and in the second,
COARSEA
is set for the X axis,
IPOENDA
for the Y axis and
FINEA
for
the Z axis.
The same applies to the programmed servo parameter set. The last programmed
acceleration override is effective from the first approach block.