Fundamental safety instructions
10 © Festo Didactic Conveyor
2 Fundamental Safety Instructions
2.1 General Safety Instructions
Electric shock and danger to life due to other energy sources.
Touching live components can result in death or severe injury.
• Only work on electrical devices when you are qualified for this job.
Electric shock due to connection to an unsuitable power supply.
When equipment is connected to an unsuitable power supply, exposed components may
carry a hazardous voltage that might result in serious injury or death.
• Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV-
(Protective Extra Low Voltage) output voltages for all connections and terminals of the
electronics modules.
Electric shock if there is no ground connection
For missing or incorrectly implemented protective conductor connection for devices with
protection class I, high voltages can be present at open, exposed parts which, when
touched, can result in death or severe injury.
• Ground the device in compliance with the applicable regulations.
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