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What's the difference between ATV312 & ATV71 in the same power rating?

There are certain differences between the ATV71 & the ATV312:

The ATV71 has the following differences:

1. Wider output frequency range ( 0.1 -1600 Hz ).

2. It can drive asynchronous & synchronous motor, unlike the ATV312 which drives asynchronous motors only.

3. It can withstand a transient torque up to 220% of the nominal torque.

4. it has more than 150 functions, unlike the ATV312 which has 50 functions.

5. It has more analogue & logic I/Ps and O/Ps, with an extra safety input.

6. It can come with an integrated DC choke.

But. performance-wise, both are the same.
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