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2 - Fagor Automation

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Current derating<br />

Drives for an synchronous motor working as an axis<br />

The following graphs show the maximum rms current in continuous duty<br />

cycle (that is, the rated one) depending on the switching frequency of the<br />

power transistors that the drive modules for synchronous motors can supply<br />

in a temperature range between 5 °C (41 °F) and 60 °C (140 °F).<br />

NOTE. They can supply twice as much current for a maximum or 0.5<br />

seconds, and always in cycles longer than 10 seconds.<br />

Drive modules<br />

DRIVE MODULES<br />

Compact drives 3.<br />

DDS<br />

HARDWARE<br />

Ref.1307<br />

149

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