Mitsubishi FREQROL-2120 Error OLT:: Stall prevention

Inverter · taken from the manufacturer’s manual, pages cited

Alarm codeOLT:

Stall prevention is activated because the motor is overloaded and load must be lightened. The manual's first action is: “Is motor overloaded? Lighten load.”

Model
Mitsubishi FREQROL-2120
Display shows
Stall prevention (OLT:)
Type
Alarm code
Source
Manual p. 32

What OLT: means

Stall prevention p. 32

Common causes

  • Long-lasting action of stall preventive function p. 32

What to do

  1. Is motor overloaded? Lighten load. p. 32
  2. Change motor/inverter capacity. p. 32

Before you service the product, read the safety instructions in the manual p. 7.

If OLT: is still not resolved

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

Open the manual at page 32 All FREQROL-2120 error codes Manual details & download

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