Siemens SINUMERIK 840D sl Equipment Manual

Also see for SINUMERIK 840D sl: Manual Function manual Function manual Function manual Function manual

Fundamental safety instructions 22.1 General safety instructionsWARNINGElectric shock and danger to life due to other energy sourcesTouching live components can result in death or severe injury.• Only work on electrical devices when you are qualified for this job.• Always observe the country-specific safety rules.Generally, the following steps apply when establishing safety:1. Prepare for disconnection. Notify all those who will be affected by the procedure.2. Isolate the drive system from the power supply and take measures to prevent it beingswitched back on again.3. Wait until the discharge time specified on the warning labels has elapsed.4. Check that there is no voltage between any of the power connections, and between any ofthe power connections and the protective conductor connection.5. Check whether the existing auxiliary supply circuits are de-energized.6. Ensure that the motors cannot move.7. Identify all other dangerous energy sources, e.g. compressed air, hydraulic systems, orwater. Switch the energy sources to a safe state.8. Check that the correct drive system is completely locked.After you have completed the work, restore the operational readiness in the inverse sequence.WARNINGElectric shock due to connection to an unsuitable power supplyWhen equipment is connected to an unsuitable power supply, exposed components may carrya hazardous voltage. Contact with hazardous voltage can result in severe injury or death.• Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV- (ProtectiveExtra Low Voltage) output voltages for all connections and terminals of the electronicsmodules.Handheld Terminal HT 8Equipment Manual, 02/2024, A5E52918633B AA 13