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Edward Lowton
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Compact safety controller
13 February 2015
The new samosPRO COMPACT safety controller from Wieland Electric, is said to offer all the benefits associated with much larger and more complex units, yet is just 45mm wide.

The device provides up to 20 safe inputs and 8 safe outputs using 4 switchable safe in-/outputs; the system can be extended with additional modules – as many as 116 secure inputs and 56 secure outputs and any number in between.
samosPRO COMPACT works in conjunction with Wieland’s project planning tool samos PLAN5+ to provide a library of up to 300 reliable, certified function blocks both standard and safety, providing solutions to complex safety tasks, with the option to develop your own user-defined function blocks. Configurable project documentation can be achieved at the press of a button.
The simulation function with integrated logic analyser enables a check of the programmed safety functions without the hardware being present, which assists with problem solving and saves time during development and commissioning, raising overall functional security. Integrated USB, Ethernet and Modbus interfaces enable flexible access to the safety system, providing the user with more transparency during project planning and operation.
Designed for tough environments, samosPRO COMPACT works across a temperature range from -25 C to 65°C, providing security under extreme conditions.
All inputs and outputs have an individual optical display, which allows quick and easy fault diagnostics. Modules are available with removable screw or push-in terminal blocks, allowing greater flexibility for the user and faster development, commissioning and maintenance time. Remote maintenance can be achieved using the integrated online diagnosis and the system log book to localise problems, negating the need for expensive maintenance calls.
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