REXROTH EFC 3610 Series, Руководство по эксплуатации

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19.6 Safe Torque Off
19.6.1 Overview
Background
In the case of a standard drive, the axis / spindle / roll is moved according to the
command values of the control unit. In this case, incorrect drive motion can be
caused by operating errors, incorrect installation in the system, defects in parts
or materials, failures in the system, etc. Incorrect drive motion - even if the er-
rors only occur for a short time and occasionally - can endanger persons staying
in the danger zone of the drive motion. You therefore have to take measures that
limit the effects of errors on the drive motion to a minimum. The residual risk of
danger to persons is then considerably reduced.
The integrated Rexroth safety technology provides the user the facilities, on the
control unit and drive side, for realizing functions of personal and machine pro-
tection with a minimum of planning and installation work required.
Comparison with Conventional Safety Technology
A drive and control system with integrated safety technology differs from sys-
tems with conventional safety technology by the fact that the safety functions
are directly integrated in the intelligent drives in the form hardware and soft-
ware. This increases the functionality in all operation modes with a maximum of
safety (short reaction times).
The power contactor between controller and motor required for the convention-
al safety technology is not included in drive and control systems with the inte-
grated safety technology.
The integrated safety technology is not intended to replace conven-
tional safety technology, such as EMERGENCY STOP monitoring devi-
ces and safety door monitors.
Using the integrated safety technology increases the available personnel and ma-
chine safety, because the total reaction time of the system in the case of an
error event, for example, is considerably reduced with regard to comparable sys-
tems with conventional safety technology. The safety signals are transmitted
with conventional wiring.
Integrated safety technology is characterized by the following features:
●
Complies with valid standards
●
Increased system performance
●
Reduced system costs
●
Easy understanding of complex subjects
●
Improved diagnostics
●
Simplified certification
EFC x610 Series Bosch Rexroth AG
Appendix
DOK-RCON03-EFC-X610***-IT05-EN-P
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