NORDAC SK 500E / SK 520E Error E003: Inverter overcurrent

NORDAC SK 500E / SK 520E inverter · taken from the manufacturer’s manual, pages cited

Error codeE003

Inverter overcurrent condition detected by the system The manual's first action is: “Avoid sustained inverter overload”

Model
NORDAC SK 500E / SK 520E
Display shows
Inverter overcurrent (E003)
Type
Error code
Source
Manual p. 15

What E003 means

Inverter overcurrent p. 15

Common causes

  • Disconnection at I²t inverter temperature limit, e.g. at > 1.5 × In for 60s p. 15
  • The U²t limit for the brake chopper was reached p. 15
  • Derating (output reduction) at f < 2 Hz p. 15

Safety warnings — read before you start

  • DANGERDANGER. touching them may cause, due to the voltages at which they are operated, serious injuries or even death p. 1

What to do

  1. Avoid sustained inverter overload p. 15
  2. Avoid sustained brake chopper (resistor) overload p. 15
  3. 125% overcurrent for 50ms p. 15
  4. 150% overcurrent p. 15

If E003 is still not resolved

  • contact service / dealer for assistance p. 15
    “Avoid sustained inverter overload”
Open the manual at page 15 All SK 500E / SK 520E error codes Manual details & download

This page summarises what the manufacturer’s manual says about E003; 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 NORDAC. Found a mistake? Report an error.