RYS MHT260a Error AL Lu: Low voltage, undervoltage

Motor amplifier · taken from the manufacturer’s manual, pages cited

Alarm codeAL Lu

The supply voltage has dropped below the required level, possibly due to momentary failure or poor power supply capacity. The manual lists no action for this code.

Model
RYS MHT260a
Display shows
Low voltage, undervoltage (AL Lu)
Type
Alarm code
Source
Manual p. 247

What AL Lu means

Low voltage, undervoltage p. 247

Common causes

  • Low voltage, undervoltage p. 247
  • The supply voltage may have dropped on account of momentary failure, etc. or the power supply capacity may be poor. p. 247

If AL Lu is still not resolved

  • Contact Fuji for special systems or applications such as atomic-energy control, aerospace use, medical use, and traffic control. p. 4
    “Customers, who want to use the products introduced in this manual for special systems or devices such as for atomic-energy control, aerospace use, medical use, and traffic control, are requested to consult the Fuji.”
Open the manual at page 247 All MHT260a error codes Manual details & download

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