The inverter detects zero-phase current and stops output to prevent overcurrent from a ground fault. The manual's first action is: “Upon detection of zero-phase current in the output power, this function stops the inverter output to protect the inverter from overcurrent due to a ground fault in the output circuit. (Applicable to inverters of 90 kW or above (3-phase 200 V) or 280 kW or above (3-phase 400 V))”
- Model
- Fuji Electric FRENIC-Eco
- Display shows
- Zero-phase current detection (EF)
- Type
- Alarm code
- Source
- Manual p. 205
What EF means
Zero-phase current detection p. 205
What to do
- Upon detection of zero-phase current in the output power, this function stops the inverter output to protect the inverter from overcurrent due to a ground fault in the output circuit. (Applicable to inverters of 90 kW or above (3-phase 200 V) or 280 kW or above (3-phase 400 V)) p. 205
If EF is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Fuji Electric service.
This page summarises what the manufacturer’s manual says about EF; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Fuji Electric. Found a mistake? Report an error.