Work Instructions And Safety Precautions - Festo Micromaster 420 Instrucciones De Montaje

5 Work instructions and safety precautions

General
•
Apprentices should only work with the circuits under the supervision of an instructor.
•
Observe the specifications included in the data sheets for the individual components, and, in particular,
all safety instructions!
•
Set the devices up so that it is easy to activate switches and
separators.
•
Faults which may impair safety must not be generated.
•
Wear personal safety equipment (safety glasses, safety shoes) when working on circuits.
•
Attention: heavy training device. Frequent lifting and carrying, or the installation in the frame, may lead
to spinal injuries. Ask for help.
Electric
• Risk of death when the PE conductor is interrupted!
– The PE conductor (yellow-green) must not be interrupted, either inside or outside
of the device.
– The insulation of the PE conductor must never be damaged or removed.
•
Risk of death from series connection of power supply units!
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.
• Attention: High leakage current!
Risk of death from high leakage current in case of interrupted PE conductor! Be sure to establish a
ground connection before connecting the power supply circuit. The device may only be operated with an
additional PE conductor. A connection is available on the bottom of the device. The protective
grounding terminal must have a cross-section of at least 1.5 mm² (EN60204-1).
• Dangerous voltage!
After opening the housing, parts are accessible which may be charged with dangerous voltage. Switch
off the power supply before working on the device.
26
© Festo Didactic 8036953