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What is the reason of Free Wheel Stop Status (nSt) in Altivar 31 Drive.
The main reasons for the Free Wheel Stop Status (nSt) alarm to occur are as follows:
1. Power-On Drive in Factory default setting mode.
2. On Pressing stop button on the Drive.
3. Without disabling the start command, if stop command is activated then drive goes in nSt.
If the Automatic Restart Function is configured (Atr) in the Fault Management menu (FLt), nSt fault will not occur in this case.
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