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

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Issue:
24VDC on DI1 with no wires connected on ATV340.

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.se.com/ww/en/download/document/NVE61069/