● Is suited for safety-relevant applications up to Category 4, PL e
according to ISO 13849-1 or SIL 3 according to IEC 62061
.
● The energy supply to the motor holding brake is safely interrupted via
two channels.
● The selection can take place via two channels, alternatively by means of
– a passive safety unit with dual-channel, isolated conventional (non-
solid-state) normally closed contacts (e.g., safety switching device
for emergency stop, safety door monitor, etc.) or
– by an active safety unit with plus-plus-switching or plus-minus-
switching OSSD outputs (e.g., safety control units, laser scanners,
etc.).
● The selection can take place via one channel, alternatively by means of
– a passive safety unit with an isolated conventional (non-solid-state)
normally closed contact (designed in compliance with SIL3), e.g.,
safety switching device for emergency stop, safety door monitor,
etc.
In addition, the fault exclusion in the wiring (considering EN
61800-5-2: 2007, table D.1 or ISO 13849-2: 2008, table D.4) is
required, or
– by means of an active safety unit with plus-switching OSSD output
(e.g., safety control units, laser scanners, etc.). In addition, the fault
exclusion in the wiring (considering EN 61800-5-2: 2007, table D.1
or ISO 13849-2: 2008, table D.4) is required.
● The dynamization of the safety function selection takes place
alternatively by means of
– the OSSD dynamization of the active safety unit or
– the dynamization outputs at the X49 terminal connector of the
optional safety technology module "L4" in the case of control by
passive safety units.
● It is possible to set up a zone by connecting up to 25 drives in parallel.
● Only self-holding (electrically releasing) brakes are supported.
● Online dynamization of the outputs and interrupting circuits
By means of the safety function "Safe
Brake Control", it is only
the control of
the brake that is tested, not the brake
function! If the brake function is
insufficient, the axis might move in an
uncontrolled way!
The function of the brake must be cyclically checked.
● Short reaction time (18 ms plus brake delay time)
● The state of the safety
function "Safe Brake Control" is displayed via
parameter "P-0-0106, Operating status STO/SBC".
Pertinent parameters
The following parameter is used in conjunction with the safety function "Safe
Brake Control":
● P-0-0106, Operating status STO/SBC
Pertinent diagnostic messages
The following diagnostic messages can be generated in conjunction with the
safety function "Safe Brake Control" (SBC):
DOK-INDRV*-SI3-**VRS**-AP06-EN-P
Rexroth IndraDrive Integrated Safety Technology "Safe Torque Off" (as of MPx-16)
Bosch Rexroth AG 55/149
Integrated safety functions
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
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