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