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Feedrate Override On Machine Control Panel - Siemens SINUMERIK 840D sl Function Manual

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Axis-specific "Feed stop"
The axis-specific NC/PLC interface signal:
DB31, ... DBX4.3 (feed stop)
stops the respective machine axis.
In automatic mode:
● If the "Feed stop" is performed for a path axis, all the axes traversed in the current block
and all axes participating in the axis group are stopped.
● If the "Feed stop" is performed for a positioning axis, only this axis is stopped.
Only the current axis is stopped in JOG mode.
Effectiveness of the axis-specific "Feed stop":
● With active G33, G34, G35:
● With active G63:
● With active G331, G332:
Axis/spindle disable
With active "Axis/spindle disable":
DB31, ... DBX1.3 = 1
The axial PLC interlocks "No controller enable" and "Feed stop" have no effect.
However, the axial and channel-specific override are effective.
"Spindle stop"
The NC/PLC interface signal:
DB31, ... DBX4.3 (spindle stop)
stops the respective spindle.
Effectiveness of the "Spindle stop" function
● With active G33, G34, G35:
● With active G63:
● With active G331, G332:
17.4.2

Feedrate override on machine control panel

Function
With the "Feedrate override via the machine control panel", the user can locally increase or
decrease the path feedrate at the machine as a percentage with immediate effect. To achieve
this, the programmed feedrates are multiplied with the override values available at the NC/PLC
interface.
The feedrate can be changed axis-specifically for positioning axes.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Effective (causes contour deviations)
Effective
Effective
Effective (may cause contour deviations depending on dy‐
namic characteristics)
Effective
Not effective
V1: Feedrates
17.4 Feedrate control
1335

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