Bystronic laser systems use a variety of error and alarm codes to indicate mechanical, electronic, or software issues. While the specific list of codes can vary based on your machine's controller (such as the or the newer
software), most systems follow a categorized structure for troubleshooting. Common Bystronic Error Codes and Alarms Code/Alarm Type Meaning/Description Common Solutions 700534 / 700535 X1/X2 Axis Oil Level
Check oil levels and the lubrication switch for the specified axis. Y-Axis Oil Level
Low oil in the Y-axis system; check level and lubrication switches. 700632 - 700636 Mirror Not Closed
Reports an open cover on the Z, Y, or X-axis mirrors. Ensure all covers are securely closed. "W-Axis" Warning Frequency/Distance Error
Often caused by a dirty cutting head. Clean the ceramics and nozzle holder with alcohol. "Drives Not Ready" Drive Failure
Can be caused by blown fuses in the drives or dust buildup in the cabinet. blow out electronics while power is on. "Shutter Error" Slow Movement
Often due to dirty pneumatic cylinders moving the shutter. Cleaning the cylinders typically resolves this. "Byposs" Error Water Flow Interruption
Related to water flow in the cutting head. Check for water in the pipes or clean the chiller unit filters. Navigating the Control System for Details If your machine is running
, you can access a built-in error lookup directly from the interface:
Opens a context-sensitive help page for the active view or dialog. System Messages:
The interface includes a dedicated area to show/hide detailed descriptions of current system messages or setup values. Service Page:
In automation scenarios (like table interchanges), you can navigate to the Automation Service Page to manually control drives and check encoder values. Official Resources and Support
For codes not listed in the standard manual, you can use the myBystronic Customer Portal
to access machine-specific service history and manuals. If an error persists after a reboot, you may need to Report a Fault directly to their service team. that isn't listed here? Bystronic Drives not ready error | Eng-Tips
Industrial. Feb 3, 2010 413 US. low air flow usually, look for bad fans and a dust clogged condenser. Chris Krug. http://krugtech. Report a fault - Bystronic
Bystronic laser systems are known for their precision and reliability, but like any sophisticated CNC machinery, they occasionally trigger error codes to protect the hardware and the operator. Understanding these codes is the first step toward reducing downtime and maintaining peak performance. Decoding the Bystronic Error Logic
Bystronic error codes generally appear on the ByVision or MMC interface. They are often categorized by the specific subsystem they affect. Most codes consist of a numerical string accompanied by a brief text description. These typically fall into three main categories:
Motion and Drive Errors: These relate to the X, Y, and Z axes, including motor overloads, positioning errors, or limit switch activations.Laser Source and Resonator Errors: These involve gas pressure, cooling water temperature, vacuum levels, or discharge issues within the resonator.Process and Parameter Errors: These occur when the cutting parameters, such as gas pressure or focal position, deviate from the programmed requirements. Common Bystronic Laser Error Codes
While a full list contains thousands of entries specific to your machine's generation (CO2 vs. Fiber), several codes appear more frequently across the board. Resonator and Vacuum Issues
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
Error 5002 - Chiller Temperature High: The cooling water has exceeded its safe operating temperature. This is frequently caused by a clogged chiller filter or low coolant levels.Error 5120 - Water Flow Rate Low: There isn't enough water circulating through the cutting head or resonator. Inspect the hoses for kinks and the pump for proper operation. Motion and Head Errors
Error 2015 - Axis Limit Switch Reached: The machine tried to move beyond its physical boundaries. This usually requires a manual reset and a check of the nesting layout.Error 3055 - Nozzle Contact: The capacitive sensor has detected that the nozzle touched the sheet metal. Check for tipped parts or incorrect focus height.Error 3100 - Focal Position Error: The motorized lens adjustment is stuck or unable to reach the commanded position. This may require cleaning the drive mechanism. Troubleshooting Steps
When an error code appears, follow this systematic approach to get back to production:
Record the Exact Code: Note the number and the accompanying text.
Clear the Area: Ensure the cutting head is clear of obstructions before attempting a reset. bystronic laser error code list
Check the "Info" Button: Many Bystronic interfaces have an "i" or info icon next to the error that provides specific troubleshooting suggestions.
Perform a Cold Start: If the error is a software glitch, restarting the control system can often clear persistent "ghost" errors.
Inspect Consumables: Many process errors are simply caused by a dirty lens, a worn nozzle, or a contaminated ceramic ring. When to Call a Technician
If you encounter errors related to the internal optics, high-voltage cabinets, or turbine failure, it is best to contact Bystronic technical support. Attempting to repair these components without specialized training can lead to expensive damage or serious injury. Regular preventative maintenance is the best way to keep your error log empty and your machine running at 100% capacity.
Title: The Frequency of Faults
The red emergency light spinning on top of the Bystronic ByStar fiber laser cut a jagged arc across the darkened factory floor. It was 2:00 AM, and the plant was supposed to be running on "ghost mode"—fully automated, lights out, churning through sheets of stainless steel until sunrise.
Instead, the only sound was the hum of the cooling unit and the frantic typing of Elias, the senior maintenance technician.
Elias wiped grease from his forehead with the back of his hand. He was staring at the control panel, the glowing touchscreen displaying a message that every laser operator dreads: SYSTEM HALT.
"It just stopped," said the night shift supervisor, pacing behind Elias. "No warning, no noise. Just stopped. We have a truck leaving at 6:00 AM with three tons of automotive brackets. If we don’t restart..."
"I know, Miller," Elias said calmly. "Let the machine talk to me."
To Elias, a Bystronic laser wasn't just a tool; it was a temperamental instrument. It spoke a language of voltages, pressures, and distances. And right now, it was speaking in code.
He bypassed the general alarm screen and navigated to the Diagnostics Menu. This was the Rosetta Stone of the shop floor—the Bystronic Laser Error Code List. It wasn't just a list; it was a map of the machine’s nervous system.
"Alright," Elias muttered, scrolling through the log. "Let’s see what hurts."
The screen populated with a cascade of active faults. To the uninitiated, it looked like gibberish. To Elias, it was a story.
Error 2802: Cutting Gas Pressure Fault. "Okay," Elias thought. "Nitrogen pressure. Maybe a valve stuck."
But Elias knew better than to trust the first error. In complex machinery, the first error was often just a symptom of a deeper cause—a domino that fell late in the chain. He scrolled up to the "History" tab to see what had triggered the cascade.
His eyes locked onto a code near the top of the list, timestamped exactly when the machine died.
Error 4110: Cutting Head Collision / Distance Sensor Fault.
"Collision?" Miller asked, reading over Elias's shoulder. "There's nothing in there. I checked."
"It didn't hit metal, Miller," Elias said, tapping the screen. "It hit nothing. Or rather, it thought it did."
Elias opened the detailed parameters for the cutting head—the ByVision Cutting interface. The error list told him that the capacitive distance sensor had lost its signal. The machine, terrified of crashing the delicate ceramic nozzle into the steel plate, had retracted the Z-axis to its home position and cut the gas flow to prevent a catastrophic blowout. That retraction had triggered the pressure drop (2802), which triggered the E-stop.
"So it’s a sensor?" Miller asked.
"Or a dirty lens," Elias said. "Or a loose cable. The code tells me what happened, not always why."
Elias navigated to the I/O Status page, a subsection of the error list that showed real-time inputs. He looked for the F41 input—the signal for the distance control.
"Zero," Elias whispered. "It’s seeing zero capacitance. It thinks the head is miles away from the plate." Bystronic laser systems use a variety of error
He walked over to the gantry. The massive beam of the laser cutter was parked mid-sheet. Elias climbed the ladder, his flashlight beam cutting through the dust. He inspected the cutting head. The nozzle was pristine. The ceramic insulator was intact. No metal shrapnel.
"Where is it?" Miller called from below.
Elias traced the cable bundle running from the cutting head up the Z-axis carriage. He knew from experience—specifically, from a very expensive service call three years ago—that the Bystronic error codes were precise about signal loss, but vague about cable fatigue.
He wiggled the black braided cable loom near the upper joint of the Z-axis. Down on the screen, the input flickered.
Input F41: Active. Input F41: Inactive. Input F41: Active.
"I found the ghost," Elias shouted down. "Broken wire in the umbilical. Every time the head moved to that specific corner of the sheet, the cable bent just right, the wire disconnected, and the brain panicked."
"Can you fix it?"
"Splice it," Elias said, climbing down. "But we run the risk of the signal jittering again."
"Can we bypass the check?" Miller asked.
Elias looked at the error list again. He could suppress the alarm, but that would mean disabling the collision protection. If the sensor failed while the head was down, the laser would drive straight into the steel and destroy a twenty-thousand-dollar cutting optic.
"No," Elias said firmly. "The code exists to save us money. We respect the code."
He grabbed his toolbox. For twenty minutes, he worked by the light of the control screen, stripping back the shielding, soldering the fractured signal wire, and wrapping it in heat-shrink tubing. He didn't just twist the wires; he used the proper technique. He respected the precision of the Swiss engineering.
When he was done, he climbed down and stood before the panel.
Miller held his breath.
Elias hovered his finger over the RESET button.
Click.
The screen flickered. The red error list vanished. The machine ran a quick self-diagnostic.
System Ready.
The servos whined as the gantry found its reference points. The gas valves hissed as nitrogen pressure built back up. The laser head lowered, sensing the distance perfectly now.
"Get the program running," Elias said, wiping his hands on a rag. "We have four hours to make up for lost time."
Miller keyed in the start sequence. The high-pressure assist gas roared, and the beam ignited, cutting a brilliant blue line through the darkness.
Elias watched the machine for a moment longer. He looked at the screen, now free of red text, displaying only the cool blue graphic of the part being cut. The error code list was hidden again, dormant until the next time the machine needed to speak.
He turned and walked toward the breakroom. The silence of the factory was gone, replaced by the comforting, rhythmic hum of production.
"Good talk," Elias whispered to the machine.
Bystronic laser error codes typically range from informational alerts to critical alarms. On modern systems using ByVision, these messages are often categorized into CNC Messages (confirmations, errors, status, emergency stops) and MMC Messages. Check cable carrier for chafed wires (source of
Below is a categorized list of common Bystronic laser error codes and messages found in technical documentation and service guides. Common System Alarms & Safety Errors
These codes usually require an immediate reset or inspection of safety components to resume operation.
700102: 24V Fuse Error. General power failure in the 24V control circuit.
700103: 230V Fuse Error. Issue with the main power supply or specific high-voltage fuse.
701040: Light Barrier Safety Error. The safety light curtain or laser barrier has been breached or is misaligned.
700850: RESET!. General system prompt indicating a fault has occurred that requires a manual reset before the machine can continue. Laser Source & Optical Errors
These errors relate to the generation and delivery of the laser beam.
00201: Voltage Module/Power Supply Error. The voltage is too high or too low. Requires checking contacts in the laser head or cooling system.
00202: Overtemperature/Signal Cable. Possible broken cable between the ACC and the laser heat switches.
00204: General Beam Source Error. Indicates a serious fault in the RF circuit or internal switch, often triggered by overtemperature (>60 °C).
700632 – 700636: Mirror Not Closed. Specific errors for Z, Y, or X-axis mirrors indicating the protective covers or the mirrors themselves are not in the correct position.
700637: Light Path Safety Deactive. Warning that the beam path safety interlocks are not engaged. Motion & Mechanical Faults
These relate to the movement of the cutting head, tables, and conveyor systems. 700248: Loading system is not in the safe home position. 700738: Conveyor motor thermal protection tripped.
700834: Nozzle distance control lost or collision with sheet metal.
701033 & 701034: Drive or brake error on the exchange table system. Maintenance & Status Alerts
General alerts regarding lubrication (700532–700536) or filter status (700739) may appear. Laser Error Codes for QMark & Icemark | PDF - Scribd
Bystronic glass, a leading manufacturer of glass processing machinery, uses advanced technology and control systems in their equipment, including laser cutting and processing machines. These machines rely on complex software and hardware to operate efficiently and accurately. Like any sophisticated machinery, they can experience errors, which are often indicated by specific error codes. Understanding these error codes is crucial for troubleshooting and resolving issues quickly.
Below is a general overview and a list of some common error codes that might be encountered with Bystronic laser machines. Please note that the specific error codes and their meanings can vary depending on the machine model, software version, and the nature of the issue. It's always best to consult the machine's user manual or contact Bystronic's technical support for the most accurate and up-to-date information.
These errors are common in both Fiber and CO2 machines, specifically regarding the cutting head (ByAutonom, Precitec, or Raytools).
| Code / ID | Description | Probable Cause & Solution | | :--- | :--- | :--- | | H200 | Focus Position Error | The Z-axis cannot find the focal point. The focusing lens may be loose, or the capacitance sensing is failing. Clean the lens and check the Z-axis drive. | | H210 | No Signal from Head | Communication lost between the cutting head sensor and the CNC. Check the fiber optic cable (for sensor data) or the serial connection. | | H300 | Crash / Collision | The cutting head hit the material or the slats. Check for tip damage. Recalibrate the head. | | H405 | Capacitive Sensor Drift | The height control system is drifting. Perform a "Sensor Calibration" or "Zero Set" on the head. | | Lens Temp High | Overheating Optics | Cooling water flow to the cutting head is restricted, or the lens is
When encountering an error code on a Bystronic laser machine, follow these general troubleshooting steps:
| Error Code | Message | Fix | | :--- | :--- | :--- | | 9100 | Communication timeout CNC-HMI | Reboot industrial PC. Check Ethernet cable between control cabinet and operator panel. | | 9205 | Cutting plan inconsistent | Post-processor version mismatch. Regenerate NC code from BySoft 7. | | 9210 | USB drive not recognized | Format drive to FAT32; ensure it’s <32GB. |
These are the most expensive to ignore.
| Error Code | Description | Likely Cause | Immediate Fix | | :--- | :--- | :--- | :--- | | E-1012 | Resonator pressure too low | Gas bottle empty or regulator failure | Check He/N2/CO2 bottles. Switch to backup bank. | | E-1024 | Turbo blower speed fault | Turbo bearing wear or VFD malfunction | Do not restart. Call service. Requires turbo rebuild. | | E-1040 | Resonator temperature > 40°C | Chiller failure or blocked air filters | Clean chiller condenser. Check coolant level. | | W-1105 | Output power deviation > 10% | Dirty output coupler or aging flashlamps (Fiber: diode degradation) | Clean optics. Schedule lamp replacement (CO2). | | E-1150 | RF drive fault (Fiber) | Loose ribbon cable or failed pre-amplifier | Reseat connectors. Reboot the laser rack. |