Specifications

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Bro_Safety_Info_DE_Rev01.indd Abs2:6-Abs2:7Bro_Safety_Info_DE_Rev01.indd Abs2:6-Abs2:7
The products of the modular
PSR safety relay system
A number of safety applications, including
emergency stop functions, protective doors
or light grid monitoring, can be realized with
just three different modules from the PSR
safety relay system. The multi-functional
PSR-SDC4 master takes over the evaluation of
the respective safety sensor. Additional
PSR-URM4/B and PSR-URD3 expansion
modules with delayed and non-delayed
contacts can be added via the DIN rail
PSR-TBUS as required. As a result, the
configuration and procurement costs, as well
as the installation and warehousing costs, are
considerably reduced.
PSR-SIM4
Order No. 2981936 (screw connection)
Order No. 2981949 (spring-cage connection)
• Interface module for the simple connection of
up to four safety switches with one N/O or N/C
contact each to a safety relay
(e.g., PSR-SDC4)
• Modular extension possible so that, for example,
eight or 12 safety switches can also be evaluated
• Max. safety category 3 in accordance with
EN 954-1
• Four signal outputs
In the body shop production lines of the
new Audi models A4 and A5, all safety
technology is realized based on the
modular PSR safety relay system. In the
individual applications here, only three
different modules are used: PSR-SDC4,
PSR-URM4/B and PSR-URD3. Due to
their compact design, the required
control cabinet space was reduced by
50%.
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