Raycus industrial pulsed fiber laser repair

Raycus RFL-P200 is an industrial-grade pulsed fiber laser designed for precision marking, engraving and micromachining.

Core parameters:

Wavelength: 1064nm (near infrared)

Average power: 200W

Pulse energy: ≤20mJ

Repetition rate: 1-100kHz

Beam quality: M² < 1.5

II. Common fault diagnosis and maintenance solutions

1. Laser power drops or no output

Possible causes:

Fiber end face contamination/damage (accounting for 40% of the failure rate)

Pump diode aging (typical life of about 20,000 hours)

Power module failure (abnormal output voltage)

Solution:

Clean/repair the fiber end face

Use a special fiber cleaning rod (do not wipe directly with your hands)

QBH connectors need to be replaced when severely damaged (cost about ¥3,000, saving 80% compared to replacing the entire fiber)

Pump diode detection

Measure the diode output with a power meter. Replace if the attenuation is >15%

Cost reduction tips: Choose Raycus compatible diodes (non-original, save 50%)

Power module maintenance

Check whether the DC48V input is stable

The replacement cost of common fault capacitors (C25/C30) is only ¥200

2. Unstable processing effect (marks of different depths)

Possible reasons:

Galvanometer/field mirror contamination

Abnormal laser pulse timing

Cooling system failure (abnormal water temperature or flow)

Solution:

Optical system maintenance

Clean the galvanometer lens with anhydrous ethanol + dust-free paper every week

Check whether the field mirror focal length is offset (special calibration tools are required)

Pulse synchronization detection

Use an oscilloscope to measure the synchronization of TTL signal and laser output

Adjust the control board delay parameters (manufacturer password required)

Cooling system maintenance

Replace deionized water every month (conductivity needs to be <5μS/cm)

Clean the filter (avoid flow <3L/min alarm)

3. Equipment alarm (common code processing)

Alarm code Meaning Emergency processing

E01 Water temperature is too high Check whether the cooling fin of the chiller is blocked

E05 Power communication failed Restart the controller and check the RS485 connector

E12 Pump overcurrent Stop immediately and detect diode impedance

III. Preventive maintenance plan

1. Daily inspection

Record laser output power (fluctuation should be <±3%)

Confirm the water temperature of the chiller (recommended 22±1℃)

2. Monthly maintenance

Clean the chassis fan filter (avoid overheating and power derating)

Check the fiber bending radius (≥15cm, prevent microbend loss)

3. Annual deep maintenance

Replace the cooling water circuit seal (prevent water leakage and short circuit)

Calibrate the power sensor (need to return to the factory or use a standard probe)

VI. Conclusion

Through accurate fault diagnosis + preventive maintenance, the stability of RFL-P200 can be significantly improved and the cost of use can be reduced. Recommended users:

Create a device health profile (record power, water temperature, etc.)

Prefer chip-level repairs over full board replacement

For a specific model repair manual or spare parts list, please contact our technical support team