samos Safety System
8
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
Master base module (Coding 1)
The master base module is the obligatory basic element of the samos system. On its own
it functions as a complete safety switching device for monitoring up to 2 safety circuits. It
offers 8 function blocks for inputs and logic functions (set on rotary switch on front), 8
inputs and 4 wear-free semiconductor safety outputs. The system configuration is saved in
the master. Errors and unauthorized alterations cause safety shutdown of the whole
system.
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Input module (Coding 1)
The input module adds additional input circuits or logic functions to a base module on its
left. The module has two function groups, A and B, each with 4 inputs. You have to set
one of 10 functions for each group using the rotary switch.
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Relay output module
The output module adds potential-free output safety circuits with positively driven relay
contacts to expand the base module outputs. The module does not function as a slave on
the internal safety bus of the samos system. Instead it is integrated in the functions via
external wiring. It can therefore be positioned anywhere between the master base module
and the (optional) bus coupler module.
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Bus coupler module
The bus coupler module for the Profibus-DP field bus allows system information for
diagnosis purposes (input levels, error and status information) to be sent to other bus
stations (e.g. higher-order controller). There is a separate manual for the bus coupler
modules (see page 70).
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