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Beckhoff TwinCAT 2 User Manual

Beckhoff TwinCAT 2
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Reversal of the master axis movement / reverse motion stop
TS5055 27Version: 1.3
ROLL
BACK
LOCK
INSTANT
STOP
ON
ROLLBACK
Synchro-
nous
phase
reached?
Description
The bit combination indicated on the left is used to activate the backstop
of the Universal Flying Saw. In the figure below, a motion reversal of the
master axis occurs in the synchronous phase, so that it moves backwards
beyond the coupling position. With this backward movement of the master
axis, the velocity of the slave axis is reduced to zero with a 5th order
polynomial as soon as the coupling position is reached. Reverse
movement of the slave axis is therefore prevented in that the slave
velocity is continuously reduced as soon as the coupling position is
reached.
1 1 no Case 7:
The behavior is identical to case 3.
1 1 yes Case 8:
The bit combination indicated on the left is used to activate the backstop
of the Universal Flying Saw. In the figure below, a motion reversal of the
master axis occurs in the synchronous phase, so that it moves backwards
beyond the coupling position. During this backward movement of the
master axis, the velocity of the slave axis is reduced to zero in one tick as
soon as the coupling position is reached. Reverse movement of the slave
axis is therefore prevented in that the slave velocity is reduced as soon as
the coupling position is reached.
The velocity reduction in one tick can trigger the following error
monitoring of the axis.

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Beckhoff TwinCAT 2 Specifications

General IconGeneral
BrandBeckhoff
ModelTwinCAT 2
CategorySaw
LanguageEnglish