Siemens MICROMASTER 420 Error A0505: Inverter ï†

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

Warning codeA0505

Inverter ï† indicates warning level exceeded with current reduced if parameterized. The manual's first action is: “Check if duty cycle is within specified limits”

Model
Siemens MICROMASTER 420
Display shows
Inverter ï† (A0505)
Type
Warning code
Source
Manual p. 72

What A0505 means

Inverter ï† p. 72

Common causes

  • Warning level is exceeded; current will be reduced if parameterized (P0610 = 1) p. 72

What to do

  1. Check if duty cycle is within specified limits p. 72

Before you service the product, read the safety instructions in the manual p. 6.

If A0505 is still not resolved

  • Check if duty cycle is within specified limits p. 72
    “Check if duty cycle is within specified limits”
Open the manual at page 72 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about A0505; 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.