In our blog posts prepared by Şahin Rulman, this week’s topic will be the servo motor alarm list, their meanings, and correction settings. With the help of tables and visuals, you can see both the servo motor alarm list and what they mean, as well as how to make the correction settings. We hope this is a useful article for you, and we wish you a good read.
Servo Motor Alarm List
If an error occurs in the servo motor, an alarm number is displayed on the panel screen. This section provides a list of possible alarms, their causes, and corrective actions.

Servo Motor Alarm Meanings
You can find the alarm name, alarm meaning, alarm stop method, and alarm reset option in the alarm list below regarding servo motor alarms.
Servo Motor Alarm Reset Option
Yes: You can reset the alarm using the servo motor alarm reset function.
No: The servo motor alarm cannot be cleared.

We have shared with you what the errors that occur during servo motor operation mean. Now, we can provide information about servo motor alarm correction settings.
Servo Motor Alarm Correction Settings
The causes and solutions for servo motor alarms are listed in the table below. If you cannot resolve an issue using the solution provided in the table, please contact YUHAI representatives.

Servo Motor Alarm Reset
If an ALM (Servo Alarm) signal is present, you can use one of the following methods to reset the alarm after eliminating the cause of the alarm. The /ALM-RST (Alarm Reset) signal does not always reset encoder-related alarms. If you cannot reset an alarm with the /ALM-RST signal, turn the control power supply OFF to reset it. WARNING: Before resetting the alarm, ensure that the cause of the servo motor alarm has been eliminated. If you reset the alarm and continue operation without eliminating the cause of the servo motor alarm, this will cause damage to the servo motor.
Resetting the Servo Motor Alarm with the /ALM-RST (Alarm Reset Input) Signal

Resetting Servo Motor Alarms Using the Panel Operator
You must press the up and down buttons on the panel simultaneously.
Viewing the Servo Motor Alarm History
The servo motor alarm history displays the last ten alarms that occurred in the servo box. No preparation is required.
Applicable Tools for Servo Motor Alarm Settings
The following table lists the tools you can use to view the alarm history and current vehicle functions.

We have reached the end of our blog post on servo motor alarm lists, their meanings, and corrective settings. If you have any questions on this topic, please feel free to contact us. You can view our servo motor types via the link.