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3. - Fagor Automation

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Protections of the unit itself<br />

Central unit<br />

It has a 4 A 250V external fast fuse (F).<br />

Inputs-Outputs<br />

All the digital inputs and outputs have galvanic isolation via optocouplers between the CNC circuitry<br />

and the outside.<br />

Precautions during repair<br />

Safety symbols<br />

Do not open this unit. Only personnel authorized by <strong>Fagor</strong> <strong>Automation</strong> may open this<br />

unit.<br />

Do not handle the connectors with the unit connected to mains. Before manipulating<br />

the connectors (inputs/outputs, feedback, etc.) make sure that the unit is not<br />

connected to AC power.<br />

Symbols which may appear on the manual.<br />

i<br />

OUT IN<br />

Danger or prohibition symbol.<br />

It indicates actions or operations that may hurt people or damage products.<br />

Warning symbol.<br />

It indicates situations that may be caused by certain operations and the actions to<br />

be taken to prevent them.<br />

Obligation symbol.<br />

It indicates actions and operations that must be carried out.<br />

Information symbol.<br />

It indicates notes, warnings and advises.<br />

X7<br />

X9<br />

X2<br />

X10<br />

X3<br />

X11<br />

X4<br />

X1<br />

X8<br />

+24V<br />

0V<br />

X12<br />

X5 X6<br />

FUSE FUSIBLE<br />

Safety conditions<br />

CNC 8035<br />

·21·

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