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Bosch Rexroth AG
System overview
4.1.2
Conceptual overview
4.1.3
Risk assessment
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)
An IndraDrive system consists of the components power section, control
section (incl. firmware) and motor, and the possibly required additional
components.
The integrated safety technology is implemented based on the interaction of
the hardware and firmware components.
The figure below shows the schematic diagram of IndraDrive
controllers with integrated safety technology "STO (Safe Torque
Off) and SBC (Safe Brake Control)".
The special feature of the distributed servo drive KSM02
(IndraDrive Mi) is that the drive controller and the motor are one
unit.
In contrast to the schematic diagram, IndraDrive Mi, IndraDrive C
IndraDrive M and IndraDrive ML do not feature the safe brake
control ("SBC")!
Fig. 4-1:
Schematic diagram of IndraDrive with integrated safety technology
"STO (Safe Torque Off) and SBC (Safe Brake Control)"
The safety functions "Safe Torque Off" and "Safe Brake Control"
do not require any measuring system.
Before a machine can be placed on the market, the manufacturer of the
machine must carry out a risk assessment in accordance with the Machinery
Directive 2006/42/EC in order to determine the hazards associated with the
use of the machine.
The risk assessment is a multilevel, iterative process. The procedure is
described in detail in "EN ISO 12100" - "General principles for design - Risk
assessment and risk reduction". This documentation can only give you a very
DOK-INDRV*-SI3-**VRS**-AP06-EN-P
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