VFD & drive fault codes
What the error on your drive's display means, the usual causes and what to check first – for the drives most used in Indian factories.
Delta
VFD-M, VFD-E, VFD-EL, MS300, C2000
oc · ov · Lv · oH · oL …
Yaskawa
V1000, J1000, A1000, GA500, GA700
oC · GF · ov · Uv1 · Uv2 …
Mitsubishi Electric
FR-D700, FR-E700, FR-A700, FR-E800, FR-A800
E.OC1 · E.OV1 · E.THT · E.THM · E.FIN …
Siemens
MICROMASTER 420 / 430 / 440, SINAMICS V20
F0001 · F0002 · F0003 · F0004 · F0005 …
ABB
ACS150, ACS310, ACS355, ACS550
0001 · 0002 · 0003 · 0004 · 0006 …
Schneider Electric
Altivar ATV12, ATV312, ATV320, ATV610
OCF · SCF1 · ObF · USF · OHF …
Danfoss
VLT Micro Drive FC 51, VLT HVAC FC 102, VLT AutomationDrive FC 302
Alarm · Alarm · Alarm · Alarm · Alarm …
⚠️ Codes and meanings differ between drive series. Always follow the manufacturer's manual and safety rules – wait for the DC bus to discharge before touching the drive.
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