Functional safety technology
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6
Functional safety technology
6.1
General
With an increasing degree of automation, the protection of persons against dangerous movements becomes increasingly
important. The so-called functional safety describes the necessary measures in the form of electrical or electronic devices in
order to reduce or eliminate the hazards that are caused by malfunctions. Under normal operating conditions, protective
devices prevent human access to dangerous areas. In certain operating modes, however, for example during the set-up,
persons are required to be present in these dangerous areas. In these situations, the machine operator must be protected by
drive- and control-internal measures.
The integrated safety technology provides the control- and drive-specific conditions for the optimal realisation of protective
functions. Planning and installation become less labour-intensive. Compared to conventional safety technology, the machine
functionality and availability can be increased by the use of integrated safety technology.
In their delivery status, the item servo positioning controller C Series are not equipped with integrated features for the safety-
relevant monitoring and control of movements but they are equipped with an extension slot for a safety module.
As a standard, item servo positioning controller C Series come supplied with the module FSM 2.0 – FBA (Fieldbus Activation
Module) integrated in the extension slot for safety modules. You can remove the FBA module and replace it with a Functional
Safety Module.
If the safety modules of the FSM 2.0 series (Functional Safety Module) are used, external monitoring devices are no longer
required for numerous applications. The wiring of the entire system is simplified and the number of components as well as the
costs of the system solution can be reduced.
The design of the safety modules ensures that they can be simply plugged into the basic device from the outside. As a result,
the servo positioning controllers can be quickly adapted to the specific safety requirements of the overall system. Retrofitting
of these modules (or the later use of a different safety module), thereby, becomes possible. The module is supplied with power
via the power supply of the basic device.
