Festo 571816, Operating Instructions Manual

Page: 11 / 64

Motor Technology Contactor Set
© Festo Didactic 8046437
11
5 Work and safety instructions
5.1 General
CAUTION
•
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!
•
Wear personal safety equipment (safety glasses, safety shoes) when working on
circuits.
5.2 Electrical safety
DANGER
•
Risk of death in case of interrupted protective earth conductor!
– The protective 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 connecting power supply units in series!
Contact voltages of greater than 25 V AC or 60 V DC are not permissible.
Coming into contact with voltages of greater than 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 power supply units (output sockets/terminals) and
cables connected to them from direct contact.
–
Only use cables with adequate insulation and electric strength.
– Use safety sockets with fully shrouded contact points.