Siemens MICROMASTER 420 Error A0511: Motor Over-temperature ï†

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

Warning codeA0511

Motor Over-temperature ï† indicates the motor has exceeded its temperature limit. The manual's first action is: “Check the following: 1. P0611 (motor ï† time constant) should be set to appropriate value 2. P0614 (Motor ï† overload warning level) should be set to suitable level 3. Are long periods of operation at low speed occurring 4. Check that boost settings are not too high”

Model
Siemens MICROMASTER 420
Display shows
Motor Over-temperature ï† (A0511)
Type
Warning code
Source
Manual p. 72

What A0511 means

Motor Over-temperature ï† p. 72

Common causes

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. P0611 (motor ï† time constant) should be set to appropriate value 2. P0614 (Motor ï† overload warning level) should be set to suitable level 3. Are long periods of operation at low speed occurring 4. Check that boost settings are not too high p. 72

If A0511 is still not resolved

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

This page summarises what the manufacturer’s manual says about A0511; 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.