Bystronic Laser Error Code List Jun 2026

Are you seeing a specific numerical code on your screen right now? Bystar 4025 machine error messages

Indicates a communication lag or hardware failure in the X, Y, or Z-axis motors.

Could be a communication error with the head. Inspect the connection cables. Laser Head / Flashlamp Failure bystronic laser error code list

For CO2 lasers (BySpeed, BySprint Classic):

| Code | Subcode | Error Name | Description & Solution | | :--- | :--- | :--- | :--- | | | E760.0 | Encoder over-temperature | Encoder is overheating. Check for adequate cooling and inspect the motor/axis for excessive friction. | | E994 | E994.0 | Station numbers conflict | Duplicate or conflicting station numbers in the automation system. Review and correct station configurations. | | EB00 | EB00.1 | Position deviation overflow | The actual axis position deviated too far from the commanded position. Check for mechanical binding, loose couplings, or servo tuning issues. | | EB01 | EB01.0 / .1 / .2 / .3 | Position reference increment errors | The position reference increment is too large, continuous, or has overflowed. Often tied to incorrect electronic gearing or CAM profile settings. | | EB02 | EB02.0 / .1 | Fully closed-loop position deviation error | Excessive deviation in a fully closed-loop control system. Inspect feedback devices (linear scales) and mechanical drive components. | | EB03 | EB03.0 / .1 / .2 | Electronic gear ratio beyond limit | The programmed electronic gear ratio exceeds the allowable limit for H05.02 or the electronic gear settings 1 and 2. Recalculate and correct the ratio. | | EB04 | EB04.0 / .1 | Gantry position deviation | Errors related to gantry axis misalignment. Indicates the two sides of the gantry are not synchronized. Re-home and check for mechanical obstructions. | | EE09 | EE09.0 / .1 | Software position limit / Home setting error | The programmed software limit or home position setting is invalid. Review and correct these parameters in the CNC software. | Are you seeing a specific numerical code on

These errors arise within the ByVision interface and relate to operation.

| Error Message | Likely Cause | Troubleshooting Steps | | :--- | :--- | :--- | | | Vacuum leak in the resonator or gas system. | 1. Perform a leak test. Readings >1 hPa/hour or fluctuating results (2→4→10 hPa/h) indicate a leak. 2. Check "yellow tubes" and their ends for cracking. 3. Test the vacuum pump—a weak pump may need rebuilding. | | "Gas Pressure Sensor Error" | Faulty sensor, gas line leak, or incorrect pressure. | 1. Test or replace the gas pressure sensor. 2. Check for leaks in the gas line. 3. Calibrate the pressure values to the manufacturer's specifications. | | Error on Resonator Startup | Thermostat failure, missing phase, or transformer issue. | 1. Open the front transformer cover; test the thermostat with an ohmmeter. 2. Check for a shorted transformer or rectifier. 3. Verify that all three phases of the power supply are present. | Inspect the connection cables

When you need expert help, Bystronic provides several support channels. You should also know that error codes and their meanings can vary by model.

Here are some systematic approaches to troubleshooting Bystronic laser errors: