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2 - Fagor Automation

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Functional safety<br />

9.<br />

FUNCTIONAL SAFETY<br />

Precautions<br />

326<br />

DDS<br />

HARDWARE<br />

Ref.1307<br />

318<br />

9.4 Precautions<br />

Safe Torque Off (STO)<br />

DANGER.<br />

The lack of Drive Enable does not isolate the system from mains nor<br />

does it discharge the DC BUS.<br />

Opening the main external contactor - KM1 isolates the system from<br />

mains, but the DC BUS is still alive for the time period indicated on the<br />

front plate of the unit.<br />

DDS system in general<br />

The precautions to bear in mind regarding the installation of <strong>Fagor</strong> <strong>Automation</strong>'s<br />

Digital Drive System are described in the section on - SAFETY<br />

CONDITIONS - in this manual.

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