Issue:
Customer wants to use an external 24VDC supply on just the STO terminals.
Product Line:
ATV340
Environment:
All
Cause:
Separate external 24VDC for STO
Resolution:
Yes an external 24VDC supply may be used for the STO circuit. See example diagram below.
The external supply must follow recommendation below:
The cable must be a shielded cable and connected to the earth like shown on STOA/STOB wiring ( on picture above)
All these recommendation are described in both:
ATV340 installation manual. See link below :
and ATV340 Embedded safety function manual. See link below:
https://download.schneider-electric.com/files?p_
Released for:Schneider Electric Malaysia
