Faldic MHT259a (RYS-L type) Error AL HU: High voltage, overvoltage

AC Servo System · taken from the manufacturer’s manual, pages cited

Alarm codeAL HU

High voltage, overvoltage means the DC intermediate voltage in the amplifier exceeds its upper limit. The manual lists no action for this code.

Model
Faldic MHT259a (RYS-L type)
Display shows
High voltage, overvoltage (AL HU)
Type
Alarm code
Source
Manual p. 326

What AL HU means

High voltage, overvoltage p. 326

Common causes

  • High voltage, overvoltage p. 326
  • The DC intermediate voltage in the amplifier is higher than the upper limit. p. 326

If AL HU is still not resolved

  • contact service / dealer p. 3
    “reference must be made to this manual and other related documents.”
  • contact service / dealer 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 326 All MHT259a (RYS-L type) error codes Manual details & download

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