Issue description

• During the operation of xTool M1 Ultra with xTool Electrostatic Mat to secure processing materials, you may encounter an error message within xTool Creative Space (XCS) software, displaying the U-Axis Driver Exception with error code M23 S138. This guide will help you diagnose and resolve the issue.

Possible causes

1. Hot Plugging: The error may result from disconnecting and reconnecting the Electrostatic Mat while the machine is powered on.
2. Electrostatic Mat Connection Cable Failure: The connection cable for xTool Electrostatic Mat and M1 Ultra may be experiencing failure.
3. Glitch in the Internal Extension Port of M1 Ultra: There could be an issue with the internal extension port of M1 Ultra where xTool Electrostatic Mat connects.

Troubleshooting flowchart

This flowchart provides a visual overview of the troubleshooting process.

U-Axis Motor Driver Error (M23 S138)? 

→ Avoid Hot Plugging → Check for Error Message 

→ Still an Error? → Test Electrostatic Mat Connection at Rear Connection Ports on M1 Ultra 

→ Still an Error? → Check Internal Port for Malfunction 

→ Still an Error? → Replace Connection Cable

Troubleshooting

STEP1: Avoid hot plugging

Important: Hot plugging refers to connecting or disconnecting devices while the machine is powered on.

1. Ensure the machine is powered off before connecting or disconnecting the Electrostatic Mat.
2. Power on the machine after connecting xTool Electrostatic Mat and check if the error persists.
   • If resolved: This indicates that the error was caused by hot plugging. Please refrain from hot-plugging the mat in your future use. Troubleshooting is complete.
   • If unresolved: Proceed to STEP2.

STEP2: Test the mat's connection

Objective: Isolate whether the issue is caused by the mat’s connection cable or M1 Ultra’s internal port.

1. Power off M1 Ultra.
2. Disconnect your Electrostatic Mat from the internal port (refer to the image below) inside your laser device.
3. Reconnect the mat to any one of the rear ports on the machine’s back panel (refer to the image below).
4. Power on M1 Ultra and attempt processing.
   1. Scenario 1: No error occurs
      • Malfunction Identified: The internal extension port is experiencing failure.
      • Action: Contact xTool Customer Service at support@xtool.com for assistance. Provide details of the troubleshooting steps you have already completed.
   2. Scenario 2: Error M23 S138 persists
      • Malfunction Identified: xTool Electrostatic Mat’s connection cable is glitching.
      • Action: Please replace your connection cable. Contact xTool Customer Service at support@xtool.com for a cable replacement.