Siemens MICROMASTER 420 Error F0002: Overvoltage

Siemens MICROMASTER 420 inverter · taken from the manufacturer’s manual, pages cited

Fault codeF0002

F0002 indicates an overvoltage condition in the DC-link voltage or due to high supply voltage or regenerative mode. The manual's first action is: “Check the following: 1. Supply voltage (P0210) must lie within limits indicated on rating plate”

Model
Siemens MICROMASTER 420
Display shows
Overvoltage (F0002)
Type
Fault code
Source
Manual p. 70

What F0002 means

Overvoltage p. 70

Common causes

  • DC-link voltage (P0226) exceeds trip level (P2172) p. 70
  • Overvoltage can be caused either by too high main supply voltage or if motor is in regenerative mode p. 70
  • Regenerative mode can be cause by fast ramp downs or if the motor is driven from an active load p. 70

Safety warnings — read before you start

  • DANGERDANGER. indicates an immiently hazardous situation which, if not avoided, will result in death or serious injury. p. 6

What to do

  1. Check the following: 1. Supply voltage (P0210) must lie within limits indicated on rating plate p. 70
  2. 2. DC-link voltage controller must be enabled (P1240) and parameterized properly p. 70
  3. 3. Ramp-down time (P1121) must match inertia of load p. 70

If F0002 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.

Open the manual at page 70 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F0002; 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 Siemens. Found a mistake? Report an error.