Wieland samos - Safety Function Blocks; samos System Overview and Capabilities

samos Safety System
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
5
3 samos Safety System
Safety Function Blocks
The
samos safety system consists of a small number of multifunctional modules and an
optional field bus coupler. This
sa fety mo dular s ystem is, as the name suggests, modular –
you add modules as the safety task grows. Sensibly coordinated, combinable function
blocks take the place of singular solutions and isolated specialists.
samos
 combines all the safety sensors that monitor your machine/plant safety singly, in
combination or all together.
 replaces special devices for monitoring – for example – emergency stop, position
switches, two-hand switches and light barriers.
 allows you to create dependent/independent safety zones.
Even a single 22.5 mm base module can operate independently and replace two safety
switching devices. Two
samos modules replace up to 6 safety switching devices. In the
maximum configuration you can monitor up to 50 dual-channel safety sensors – up to EN
ISO 13849-1 PL e / category 4 or EN 61508/EN 62061 SIL 3.
Handling and function will be familiar from conventional safety switching devices. You
can set all the safety functions simply using a screwdriver – no programming software –
and read them off on the device. If required, you can expand the inputs or outputs using
additional modules.
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Functions
 Emergency stop, with or without cross-circuit monitoring
 Safety door monitoring, also with coded electromagnetic switches
 Controlled stopping with settable off delay up to 5 minutes, with or without retriggering
 Light barrier monitoring with testable/self-testing sensors (non-contact safety device type 2
and 4)
 Position monitoring with testable inductive sensors (PDF)
 Static valve monitoring
 Two-hand applications to EN 574, type IIIA and IIIC
 Jog mode
 4-wire switching mat monitoring
 Muting and bypass
 Enabling function for cascading and grouping
 Automatic or manual Reset, starting and restarting inhibit