Drivecon LU2 fault code meaning
Drivecon / LU2
Series: VF5100HG
Under voltage (intermediate DC voltage)
AC drive
Meaning: Under voltage (intermediate DC voltage) Fault relay (86A): No action. Whereas, when continuing for 10 sec., action by sluggishness of starting. (Note 2). | Note: This protection goes in action as DC power supply source of VF5100HG results in shortage. Also as this protection conducts action continuing for 10 seconds, sluggishness of starting is activated, StrF and LU2 at console illuminated alternately shifting to stop of VF5100HG. Root cause presumed. (1) Abnormality drop of main circuit voltage - Check main circuit input voltage. (2) Blowing of intermediate DC Fuse - Light "FU" of inverter u
Possible causes
Source: Drivecon VF5100HG Instruction Manual Protective functions P35