2 · FC 301/302 · WARNING/ALARM
For 2 · FC 301/302 · WARNING/ALARM, brand is Danfoss; model / series is FC 301/302; fault code is 2; fault name is Live zero error; type is WARNING/ALARM, verified against its source on 2026-09-01.
- Brand
- Danfoss
- Model / series
- FC 301/302
- Fault code
- 2 verified
- Fault name
- Live zero error verified
- Type
- WARNING/ALARM verified
- Cause
- This warning or alarm only appears if programmed in parameter 6-01 Live Zero Timeout Function. The signal on 1 of the analog inputs is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause this condition. verified
- Corrective action
- • Check connections on all analog mains terminals. - Control card terminals 53 and 54 for signals, terminal 55 common. - VLT® General Purpose I/O MCB 101 terminals 11 and 12 for signals, terminal 10 common. - VLT® Analog I/O Option MCB 109 terminals 1, 3, and 5 for signals, terminals 2, 4, and 6 common. • Check that the drive programming and switch settings match the analog signal type. • Perform an input terminal signal test. verified
What the source says
WARNING/ALARM 2, Live zero error
— files.danfoss.com, retrieved 2026-09-01
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Cause
This warning or alarm only appears if programmed in parameter 6-01 Live Zero Timeout Function. The signal on 1 of the analog inputs is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause this condition.
Corrective action
• Check connections on all analog mains terminals. - Control card terminals 53 and 54 for signals, terminal 55 common. - VLT® General Purpose I/O MCB 101 terminals 11 and 12 for signals, terminal 10 common. - VLT® Analog I/O Option MCB 109 terminals 1, 3, and 5 for signals, terminals 2, 4, and 6 common. • Check that the drive programming and switch settings match the analog signal type. • Perform an input terminal signal test.
— all from files.danfoss.com, retrieved 2026-09-01
Source
- files.danfoss.comhttps://files.danfoss.com/download/Drives/MG33MO22.pdf