Depending on where you sell your products, there are many different legal requirements that apply to your electric drives and motor controllers. These include the EC Machinery Directive 2006/42/EC or the EN ISO 13849 series of standards. In practice, however, design engineers are mainly faced with two difficulties: either there is uncertainty about which regulation applies, or it is unclear whether the regulation is applicable for the chosen solution. But this can be clarified. We can provide you with extensive support and practical information, application notes and technical FAQs, no matter what the particular product is. And our experts are always happy to help.
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:
The electric drive is brought to a standstill within specific limits (delay, time, etc.) and the safety sub-function STO is subsequently executed.
Application notes:
The SOS function prevents the drive from deviating from the stopping position by more than a specific amount. The energy is supplied to the electric drive so that it can withstand the effect of external forces.
The electric drive is brought to a standstill within specific limits (delay, time, etc.) and the safety sub-function SOS is subsequently executed.
SLS 功能防止电驱动产品超过许用速度。
SDI 功能防止驱动器朝错误的方向运动。
SBC 功能提供了一个安全的输出信号，用于控制外部制动或夹紧单元。
如何实现呢？请参阅我们的机械和系统安全指南。里面不仅涵盖有关基本标准、风险评估和降低风险的全面信息，还包括所有安全功能的详细概述，以及将这些功能集成到您的系统中的恰当产品。
该指南还包括由 Festo 培训与咨询部提供的所有安全工程资格研讨会的概述。