Siemens Sinumerik 810T - Manual (Page 56)

11.90 2 Operation
2.3.2 Operating modes - overview
• Incremental 1 . . . 10 000 jog (CRT display: INC FEED 1 . . . 10 000)
In this operating mode, defined paraxial
positioning is possible using the direction
keys. The feedrate is fixed with a
machine data. Feedrate override (in the
range 0% ... 120%) is only possible when
the appropriate interface signal is
transferred from the PLC to the NC.
MD define whether the set increment (in
example shown: 100
µ m) will be
traversed in continuous mode or jog
operation.
”INC FEED 1 . . . 10 000” basic display
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• Actual value setting (CRT display: PRESET)
The directions of movement of an NC
machine are based on a right-angled
system of coordinates assigned to the
individual machine axes.
In the absolute machine coordinate
system, control zero can be shifted in
comparison to the machine zero point.
In ”PRESET” mode, the control zero
point can be placed anywhere within the
machine coordinate system.
”PRESET” basic display
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• Repositioning (CRT display: REPOS)
In ”REPOS” mode, the tool can be
returned to the point of interruption using
the direction keys and the set feedrate
value ”F”.
The ”REPOS offset” display shows
the distance from the actual position
to the point of interruption, with the
correct sign to show the direction of
traverse.
When the point of interruption is reached,
the ”REPOS offset” display
is zero; at the same time the direction
keys are no longer active.
”REPOS” basic display
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© Siemens AG 1990 All Rights Reserved 6ZB5 410-0EP02 2-37
SINUMERIK 810T, GA3 (BN)