Bystronic Laser Error Code List [2021] Jun 2026

Run a manual via the ByVision interface. Error: "Focus Axis Limit Tripped" / Code 7540

Swap the cover slide in a clean-room environment. Never attempt to clean a heavily pitted window. 4. CNC Motion & Axis Drive Faults

Verify the water level is within the green safe zone; top off with approved deionized water if necessary. Error: "Laser Gas Pressure Fault" (CO2 Systems) / Code 5305

Software and control system failures can manifest as boot errors or communication timeouts.

General information about the current machine state. No action is usually required. bystronic laser error code list

Regularly clean lenses and mirrors with authorized kits and check for nozzle damage.

The Complete Guide to Bystronic Laser Error Codes: Troubleshooting and Solutions

| Code / ID | Description | Probable Cause & Solution | | :--- | :--- | :--- | | | Emergency Stop Activated | The E-Stop button was pressed or a safety circuit was broken. Check all E-Stop buttons (control panel, mobile unit, rear cabinet). Reset the button and clear the error. | | 200x | Drive Error / Axis Fault | Servo drive fault. Often caused by overload, collision, or power supply issues. Check for mechanical obstructions on the X, Y, or Z axes. Reset the drives. | | 300x | Lubrication Error | The lubrication system is empty or blocked. Refill the oil reservoir. Check for clogged lines or failed pump. | | 400x | Pneumatic Pressure Low | Cutting gas (N2, O2) or assist gas pressure is below the minimum threshold. Check the main supply, open the main valve, or check for leaks in the lines. | | 501 | Door Interlock Open | The safety door or cover is open while the machine is trying to operate. Close doors securely. | | 605 | Reference Point Not Reached | The machine cannot find its home position. Check limit switches and axis sensors. Re-reference the machine. | | 700x | Cooling System Fault | The chiller is not running or the temperature is out of range. Ensure the chiller is powered on and water levels are sufficient. Clean chiller filters. |

Often a sign of mechanical resistance, such as a lack of lubrication on the rails or a physical obstruction on the slats. 3. Cutting Head and Sensor Errors (The "ByPos" System) Run a manual via the ByVision interface

For older CO2 machines (BySprint, BySpeed), the errors usually relate to the RF generator, Turbo blowers, or gas mix.

| 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. |

Disclaimer: Some repairs necessitate authorized service personnel to prevent damage to specialized components.

Check for kinked hoses. Replace the dual-stage water filters immediately. 3. Cutting Head & Capacitive Sensor Errors General information about the current machine state

: The control interface lost connection with the laser cabinet. Check all Ethernet and fiber optic cables. Restart the system.

Faults tied to the X, Y, or Z-axis drive amplifiers, motors, or linear encoders.

Bystronic Laser Error Code List: Troubleshooting & Solutions

Error 4010 - Vacuum Pump Fault: This often indicates that the vacuum pump has failed to reach the required pressure within the allotted time. Check for leaks in the gas lines or worn pump vanes.Error 4205 - Gas Pressure Low: The system isn't receiving enough lasing gas. Verify your gas bottles are full and the regulators are set correctly.Error 4500 - Discharge Failure: A common CO2 laser error. It suggests an issue with the high-voltage power supply or the electrode cooling system. Cooling and Thermal Errors

Power down the machine for 10 minutes to reset the thermal overloads. Inspect the motor power cables for breaks or shielding wear. Step-by-Step Emergency Troubleshooting Protocol