Altivar 61/71 Adjustable Speed Drives

What is Altivar 71 used for?

What is Altivar 71? Altivar 71 (ATV 71) is a variable speed drive for 3-phase asynchronous electric motors with Schneider Altivar 71 motor overload protection.
Altivar 71 frequency converters are designed for motors from 0.37 to 630 kW with four types of mains supply: Single-phase, 200 - 240 V, from 0.37 to 5.5 kW.

What is the equivalent of Altivar 71?

The ATV71 series was directly replaced by the ATV900 series.

What is the PRA fault on Altivar 71?

It means that power removal function is active.
The drive is not detecting 24Vdc on the PWR terminal.

NLP indicates that no line power is present on the L1, L2 & L3 input terminals of the drive controller.
Check voltage at the L1, L2 & L3 terminals.
Check for open circuits on line contactors, circuit breakers, disconnect switches, or fuses.