Engineering takeaways
- Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic.
- A successful retrofit starts with measured machine condition and documented interfaces, not a controller shopping list.
- Retain a tested rollback path until safety, motion, process and production acceptance are complete.
Compatibility checklist
- Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic.
- Migrate a Fagor laser CNC by documenting axis, drive, encoder, EtherCAT or analog I/O, GAP height control, PWM, gas and operator functions before replacing the control path.
- Record machine model, serial number, year, working area and automation options.
- Identify controller, industrial PC, servo drives, encoders, fieldbus, remote I/O and height-control hardware.
- Collect electrical, pneumatic, gas, cooling, extraction and safety drawings; mark undocumented changes.
- Measure mechanical accuracy, backlash, gantry squareness, slat-bed condition and axis performance before increasing speed or power.
- Define materials, thickness range, assist gases, daily output, quality limits and target laser power.
Hardware and integration scope
- Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces.
- Document the rated interfaces and utilities named in the project scope: Migrate a Fagor laser CNC by documenting axis, drive, encoder, EtherCAT or analog I/O, GAP height control, PWM, gas and operator functions before replacing the control path.
- Industrial PC or operator console, controller and licensed software matched as one supported set.
- Servo/encoder interfaces, fieldbus couplers, remote I/O, safety relays and galvanic isolation where required.
- Capacitive height control, cutting-head signals, laser modulation, gas valves, chiller and extraction interlocks.
- Documented terminal numbering, cable shielding, grounding, spare I/O and service access for future maintenance.
Implementation workflow
- 01
Define the decision: Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic.
- 02
Capture the machine baseline: Migrate a Fagor laser CNC by documenting axis, drive, encoder, EtherCAT or analog I/O, GAP height control, PWM, gas and operator functions before replacing the control path.
- 03
Freeze the integration architecture: Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces.
- 04
Prepare the outage: Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces. Issue the retrofit architecture, I/O matrix, bill of materials, risk register, rollback plan and outage schedule.
- 05
Commission through controlled gates: A modern Fagor system may already use EtherCAT; replacing it does not mean every drive or I/O slave is automatically supported. Commission axes at low speed, tune following error and height control, validate gas and laser signals, then build process tables progressively.
- 06
Prove production acceptance: Verify GAP response, PWM/power output, proportional gas, contour dynamics and recovery from piercing faults.
Detailed engineering notes
Decision boundary
Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic. Create a machine dossier containing model and serial data, photographs of nameplates and cabinets, electrical revisions, PLC and CNC backups, drive/encoder types, alarm history and sample parts. Record the current cut quality and cycle time so the retrofit has a measurable baseline.
Reusable assets and integration limits
Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces. The frame, gantry, rails, drives, motors, extraction, gas train and automation should be assessed independently. A part that powers on is not automatically suitable for higher acceleration, a different control loop or higher laser power.
Interface evidence
Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic. Identify controller, industrial PC, servo drives, encoders, fieldbus, remote I/O and height-control hardware. Industrial PC or operator console, controller and licensed software matched as one supported set.
Safety case
A modern Fagor system may already use EtherCAT; replacing it does not mean every drive or I/O slave is automatically supported. Trace emergency stops, enclosure doors, light curtains, laser-enable chain, gas pressure, cooling flow, extraction and motion brakes. Each device needs a defined safe response and a recorded validation test after wiring changes.
Controlled commissioning
Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces. Verify power distribution and protective earth first, then I/O, fieldbus, axis direction, limits, homing, low-speed motion, servo tuning, height control, gas, laser enable and finally cutting. Do not combine first motion and first laser emission into one test.
Production proof
Verify GAP response, PWM/power output, proportional gas, contour dynamics and recovery from piercing faults. Use the customer's normal materials, thicknesses and quality criteria. Record nozzle, focus, gas, power, speed, piercing and inspection results, then compare repeatability across more than one sheet.
Handover and support
A common project question is: Does Fagor EtherCAT make the migration plug-and-play? Engineering answer: No. Device profiles, safety, PDO mapping, timing, OEM logic and controller support still require engineering verification. Train operators on daily use and maintenance staff on backups, alarms, I/O diagnostics and safe replacement procedures. Store the final drawings and software image in at least two controlled locations.
Fagor to CypCut Laser Control Retrofit Guide
Migrate a Fagor laser CNC by documenting axis, drive, encoder, EtherCAT or analog I/O, GAP height control, PWM, gas and operator functions before replacing the control path. Identify which Fagor cutting functions are machine-critical and how they are implemented in the current OEM logic. Recreate axis motion, height control, laser power modulation, gas proportional control and cutting-table functions with verified interfaces.
- Does Fagor EtherCAT make the migration plug-and-play?
- Which Fagor CNC functions must be separated from laser process I/O?
- Can the existing drives and encoder resolution be used with CypCut?
- How is capacitive height control commissioned without masking CNC faults?
Risks and limitations
- A modern Fagor system may already use EtherCAT; replacing it does not mean every drive or I/O slave is automatically supported.
- Treat an unresolved survey finding as a commercial and outage risk, not an assumption: A modern Fagor system may already use EtherCAT; replacing it does not mean every drive or I/O slave is automatically supported.
- A new controller cannot correct worn rails, backlash, frame distortion or an unstable cutting bed.
- Bypassed or incompletely mapped interlocks create unacceptable personnel and equipment risk.
- Unverified licenses, firmware, servo compatibility or undocumented OEM logic can extend downtime.
Acceptance criteria
- Verify GAP response, PWM/power output, proportional gas, contour dynamics and recovery from piercing faults.
- Record the agreed evidence, limits and operator handover in the final acceptance file: Verify GAP response, PWM/power output, proportional gas, contour dynamics and recovery from piercing faults.
- All emergency stops, doors, light curtains, pressure, cooling and extraction interlocks stop hazardous motion or laser emission as designed.
- Axis travel, homing, limit switches, following error, repeatability and contour accuracy meet the agreed baseline.
- Cut coupons cover representative materials and thicknesses, including holes, corners, common-line cuts and piercing.
- Backups, drawings, parameter sets, licenses, spare-parts list, operator training and maintenance handover are complete.
Frequently asked questions
Does Fagor EtherCAT make the migration plug-and-play?
No. Device profiles, safety, PDO mapping, timing, OEM logic and controller support still require engineering verification.
Can the final hardware be selected from photos alone?
No. Photos help identify the machine, but drawings, controller/drive data, I/O measurements, safety logic and mechanical checks are required before a binding scope.
How is retrofit downtime controlled?
Pre-engineering, cabinet preparation, software staging and acceptance planning are completed before shutdown. The schedule still includes contingency for undocumented wiring or failed legacy parts.
Official technical references
Platform names describe product families, not guaranteed retrofit compatibility. Final software, controller and license selection follows a machine survey.
