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Bosch Rexroth AG
Functional principle of integrated safety technology
Dynamization in the case of selec‐
tion via passive safety units
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
Rexroth IndraDrive Integrated Safety Technology "Safe Torque Off" (as of MPx-16)
Fig. 5-3:
Dynamization in the case of selection via an active safety unit
When
choosing
consumption of the selection inputs of all drives of a safety zone
must be taken into account.
A passive safety unit is a safety switching device with which the
safe function is selected via isolated contacts.
When the safety functions of the "L options" are selected via a
passive safety unit, the drive checks the wiring of the selection.
When the selection of the safety functions takes place via a passive safety
unit, the drive generates the dynamization pulses and makes them available
via the "dynamization channel A" and "dynamization channel B" outputs.
These two outputs allow supplying the isolated selection contacts of the
passive safety unit.
The figure below illustrates, in schematic form, the interconnection of a
passive safety unit and several drives with an "L option":
DOK-INDRV*-SI3-**VRS**-AP06-EN-P
the
safety
unit,
the
maximum
current
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