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Why does my ATV340 have 24VDC on DI1 when I have no wires connected to it?

Published date: 18 October 2018

Issue:
Why does my ATV340 have 24VDC on DI1 when I have no wires connected to it?

Product Line:
Altivar 340

Environment:
All

Cause:
Installation 

Resolution:
Check the position of the SK/EXT/SRC dip switch. The switch should be set to the SRC position if you want to activate the drive's digital inputs by supplying 24VDC to them. 

See the ATV340 Installation Manual, pages 104 and 105 for details on this switch:
https://www.schneider-electric.com/en/download/document/NVE61069/

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