ATV28 replaced by an ATV11. Speed point come from a PLC ( analog output ).
Probelm: there is no really 0v but 0,2 or 0,3v. At this value the ATV11 running , not the ATV28.
The solution is to put a diode or choose an ATV11 with S315 specification. This version have CrL and CrH functionnalities, like the ATV58
Legacy KB System (APS) Data: RESL157716 V1.0, Originally authored by on , Last Edited by on
Related ranges: Altivar 58