Drive modules
DRIVE MODULES
Compact drives
3.
149
DDS
HARDWARE
Ref.1310
Current derating
Drives for an synchronous motor working as an axis
The following graphs show the maximum rms current in continuous duty
cycle (that is, the rated one) depending on the switching frequency of the
power transistors that the drive modules for synchronous motors can sup-
ply in a temperature range between 5 °C (41 °F) and 60 °C (140 °F).
NOTE. They can supply twice as much current for a maximum or 0.5
seconds, and always in cycles longer than 10 seconds.
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