Siemens SINUMERIK 840D sl Equipment Manual

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2.5 Residual risks of power drive systemsWhen assessing the machine or system-related risk in accordance with the respective localregulations (e.g. EC Machinery Directive), the machine manufacturer or system integrator musttake into account the following residual risks emanating from the control and drive componentsof a drive system:1. Unintentional movements of driven machine or system components during commissioning,operation, maintenance, and repairs caused by, for example,– Hardware faults and/or software errors in the sensors, control system, actuators, andconnections– Response times of the control system and of the drive– Operation and/or environmental conditions outside the specification– Condensation/conductive contamination– Parameterization, programming, cabling, and installation errors– Use of wireless devices/mobile phones in the immediate vicinity of electronic components– External influences/damage– X-ray, ionizing radiation and cosmic radiation2. Unusually high temperatures inside and outside the components, including open flames, aswell as emissions of light, noise, particles, gases, etc. due to fault conditions, e.g.:– Component failure– Software errors– Operation and/or environmental conditions outside the specification– External influences/damage– Short circuits or ground faults in the intermediate DC circuit of the converter3. Hazardous shock voltages caused by, for example:– Component failure– Influence during electrostatic charging– Induction of voltages in moving motors– Operation and/or environmental conditions outside the specification– Condensation/conductive contamination– External influences/damage4. Electrical, magnetic and electromagnetic fields generated in operation that can pose a risk topeople with a pacemaker, implants or metal replacement joints, etc., if they are too close5. Release of environmental pollutants or emissions as a result of improper operation of thesystem and/or failure to dispose of components safely and correctlyFundamental safety instructions2.5 Residual risks of power drive systemsHandheld Terminal HT 8Equipment Manual, 02/2024, A5E52918633B AA 19