Functional safety for electric drives is generally implemented with certified components and modules, whereas the electric safety functions are mostly implemented in the motor controllers or with external safety relay units. For example, STO (safe torque off) is integrated in motor controllers from Festo as a matter of principle.
When it comes to safety, choosing the right product is important, but it isn't the only consideration. To help you meet your complex requirements, we not only offer the right products, but our product engineers are also on hand to provide expert advice, for example to work through the Failure Mode and Effects Analysis (FMEA) with you. This means that you can ensure the safety of your planned systems much more quickly and cost-effectively.
In practice and because the harmonised standard EN ISO 13849 applies for mechanical as well as pneumatic, hydraulic and electric controllers, you will often also need information about other or all-encompassing safety functions in your work.
A force-generating energy supply to the electric drive is prevented. This function also prevents an unexpected start-up in electric drives.
Application notes: