Faldic MHT259a (RYS-L type) Error AL ET: Encoder trouble

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

Alarm codeAL ET

Encoder trouble indicates a fault with the 16-bit serial encoder attached to the motor. The manual's first action is: “The 16-bit serial encoder attached to the motor may be broken.”

Model
Faldic MHT259a (RYS-L type)
Display shows
Encoder trouble (AL ET)
Type
Alarm code
Source
Manual p. 326

What AL ET means

Encoder trouble p. 332

Common causes

What to do

  1. The 16-bit serial encoder attached to the motor may be broken. p. 332
  2. If an alarm appeared immediately after turning on power, contact us. p. 332

Before you service the product, read the safety instructions in the manual p. 3.

If AL ET 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 ET; 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.