Work Instructions And Safety Precautions - Festo Emergency Light Controller EduTrainer Manual De Instrucciones

5 Work Instructions and Safety Precautions

General
•
Trainees should only work with the circuits under the supervision of an instructor.
•
Observe the specifications included in the technical data for the individual components, and in
particular all safety instructions!
•
Malfunctions which may impair safety must not be generated.
•
Wear personal safety equipment (safety glasses, safety shoes) when working on circuits.
Electrical system
• Risk of death in case of interrupted protective earth conductor!
– The PE conductor (yellow-green) must not be interrupted, either inside or outside of the device.
– The insulation of the protective conductor must never be damaged or removed.
• Risk of death from series connection of power supply units!
Contact voltages of > 25 V AC or > 60 V DC are not permissible.
Coming into contact with voltages > 50 V AC or 120 V DC may be fatal.
– Do not connect voltage sources in series.
• Risk of death due to electric shock!
Protect the outputs of the devices (output sockets/terminals) and the cables connected to them from
direct contact.
– Only use cables with adequate insulation and electric strength.
– Use safety sockets with fully shrouded contact points.
•
Disconnect from all sources of electrical power!
– Switch off the power supply before working on the circuit.
– Please note that electrical energy may be stored in individual components.
– Further information on this issue is available in the data sheets and operating instructions included
with the components.
Caution!
–
Capacitors inside the device may still be charged even after being disconnected from all sources of
voltage.
•
Establishing and disconnecting electrical connections
– Electrical connections may only be established in the absence of voltage.
– Electrical connections may only be disconnected in the absence of voltage.
•
The device may only be operated using a power supply with a PE conductor.
•
Maximum permissible current loads for cables and devices must not be exceeded.
– Always compare the current ratings of the device, the cable and the fuse.
– If these are not the same, use a separate upstream fuse in order to provide appropriate overcurrent
protection.
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