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Resolution: NST is a very general status on drives.

. book Page 67 Vendredi, 11. • Before turning on and configuring the Altivar 71, check that the PWR (POWER REMOVAL) input is deactivated (at state 0) in order to prevent unintended operation.

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Jul 30, 2018 · Tutorial for troubleshooting the INF6 fault (internal option fault) on the Altivar ATV61 and ATV71 Variable Frequency Drives (VFD) typically caused by a loose option card or two serial cards. 7 02/2013. .

IMPROPER CONTROL WIRING PRACTICES. Cause: The drive status is showing NST on the main display and it will not clear.

Faults - Causes - Remedies Drive does not start, no fault displayed • If the display does not light up, check the power supply to the drive.

8 FAULT MANAGEMENT] (FLt-) _____ 220.

. May 19, 2022 · Altivar ATV31 and ATV312.

. Resolution: Here are a few possible causes: (A) If a directional run command (forward or reverse) is present on power up of the drive and the drive is set for 2C (2-wire) with [trn] transition.

There are numerous reasons why NST is present on the Altivar Drives.
Date : 01/01/2016 Type : User guide.
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The drive will not run.

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Unplug keypad from mod bus port expander, soft start displays nST and will start from HMI. AI2F. Unplug keypad from mod bus port expander, soft start displays nST and will start from HMI.

Environment: All. . Below are some of the most common fault codes for the Schneider Altivar VFD/VSD Drives: Common cause is loss of power,. . Resolution: NST is a very general status on drives. .

Cause: NST is not a fault but rather a status indicating the drive is in a freewheel stop condition.

If this test fails, replace the drive or if it's big enough to be modular the IGBHe themselves. It is not a fault condition.

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