Fault code

INVT GD20 OC1 Over-current when acceleration

Possible causes

  • The acceleration or deceleration is too fast.
  • The voltage of the grid is too low.
  • The power of the inverter is too low.
  • The load transients or is abnormal.
  • The grounding is short circuited or the output is phase loss.
  • There is strong external interference.
  • The overvoltage stall protection is not open.

Recommended checks and actions

  • Increase the ACC time
  • Check the input power
  • Select the inverter with a larger power
  • Check if the load is short circuited (the grounding short circuited or the wire short circuited) or the rotation is not smooth.
  • Check the output configuration.
  • Check if there is strong interference.
  • Check the setting of relative function codes.

Technical source

INVT GD20 Manual EN - P07.27 Current fault type — page 62

INVT GD20 Manual EN - Fault tracking — page 93

Manual tiếng Việt INVT GD20 - Xử lý lỗi — page 82