21
DDS
HARDWARE
Ref.1310
Precautions during repairs
Do not access the inside of this unit.
Only personnel authorized by Fagor Automation may access the interior of this unit.
Do not handle the connectors while the unit is connected to mains.
Before handling the connectors (mains, moving power, feedback, ...) make sure that the unit is not
connected to mains.
Precautions during maintenance
Useful life (mission) of the STO safety function.
The useful life (mission) of the STO safety function is 20 years. After that time, the safety function
will no longer be valid. The expiration date must be calculated by adding 20 years to the date
shown on the version label of the unit. Write down this value in the maintenance plan of the instal-
lation. Do not use the safety function after that date.
Safety symbols
Symbols that may appear in this manual
Symbols that the product may carry
DANGER or prohibition symbol.
It warns about an immediate dangerous situation. Ignoring this warning may cause
serious, even fatal, consequences.
WARNING or caution symbol.
It warns about a potentially dangerous situation. Ignoring this warning may cause se-
rious injuries (even fatal) or damages to the unit.
MANDATORY symbol.
It warns about actions and operations that MUST BE carried out. In other words,
THEY ARE NOT PLAIN RECOMMENDATIONS. Ignoring this warning may mean not
complying with some safety regulation.
INFORMATION symbol.
Notes, warnings, advises and recommendations.
Ground protection symbol.
It indicates that point must be under voltage.
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