MAXPhotonics MFP-20 - User Manual

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Summary

Safety Information

Safety Conventions

Information about safety symbols and their meanings.

Product Description

Product Overview

Details about the MFP-20 pulsed Ytterbium fiber laser.

Accessories

List of included accessories with the laser device.

Environment and Precautions

Guidelines for operating environment, power supply, and general safety.

Specifications

Technical specifications including optical, electrical, and general characteristics.

Installation

Installation Measurement Pictures

Diagrams showing physical dimensions and mounting points for the laser unit.

Installation Method

Step-by-step instructions for installing the laser module and connecting components.

External Layout and Control Interface

25-pin D-shape Connector Pin Assignment

Detailed pinout and function for the 25-pin D-shape connector.

Control Interface Operation

Explanation of control interface pins, power settings, and status indicators.

Laser Running and Power Connection

Procedures for starting, running the laser, and connecting power.

Operation

Preparation for Use

Pre-operation checks, system verification, and initial setup before running the laser.

Operation Steps

Detailed steps for turning on the laser and performing initial tests.

Operational Warnings

Important warnings related to laser frequency, marking results, and direct power control.

Quality Assurance, Warranty, and Returns

General Warranty Information

Details on the standard warranty period and coverage for MAXPHOTONICS fiber lasers.

Warranty Limitations

Exclusions and conditions that may void the product warranty.

Services and Repairs

Procedures for requesting service or repairs and contacting support.

RMA Clearance Form

Form and instructions for initiating a Return Material Authorization (RMA).

Product Return Instructions

Detailed guidelines for returning products for warranty claims or repairs.

Non-Warranty Returns

Procedures and responsibilities for returns not covered by warranty.

The MAXPHOTONICS MFP-20 is a Class IV pulsed Ytterbium fiber laser, designed as a high-performance OEM device for integration into high-speed, high-resolution laser marking systems. It offers significant improvements in per-Watt optical power efficiency, low power consumption, and a robust design compared to traditional diode-pumped solid-state lasers. The MFP-20 is suitable for both laboratory and field operations, featuring a compact, rugged, stand-alone, ready-to-use, turn-key design that can be directly integrated into a user's apparatus.

Function Description:

The MFP-20 laser emits a periodical pulse train at a wavelength of 1064 nm, with a peak power of up to 20 KW. The pulse repetition rate can be controlled either via a separate remote control unit or by an external PC. The device requires a 24V external DC power supply. It is designed for laser marking applications, offering precise control over output power and pulse characteristics.

Important Technical Specifications:

Optical Characteristics:

Mode of Operation: Pulsed
Output Beam Mode: M² < 1.8
Polarization: Random
Central Emission Wavelength: 1064 +/- 2 nm
Nominal Average Output Power: 20 W
Output Power Tunability: 0 to 20 W
Long-Term Average Output Power Instability (over 5 hours): < 5 %
Pulse Duration at 20 kHz: 70–120 ns
Pulse Repetition Rate: 22–70 kHz
Nominal Peak Power (pulse energy/FWHM pulse duration): > 5 kW
Peak Power Instability: < 5 %
Residual Pump Power at the Output: < -60 dB
Output Fiber: 20/125/3000/7000 µm
Output Fiber Length: 1.9/2.5/3 m
Output Collimator: Bulk Lens
Output Beam Diameter (1/e²): 6–9 mm

Pump Diodes:

Emission Wavelength: 970 +/- 10 nm
Stripe: 1x100 µm
MTTF (20 °C): > 30,000 hours

Electrical Characteristics:

Supplied Voltage: 24 V DC
Nominal Total Current (at 24 V, 20 °C): < 8.5 A
Maximum Total Current: < 15 A
Typical Power Consumption (at 20 °C): < 140 W

General Characteristics:

Operating Temperature Range: 0 to (+40) °C
Storage Temperature: (-10) to (+60) °C
Cooling Method: 4 fans
Warm-up Time: 10 s
Humidity: 10 to 95 %
Weight: 10 kg

Usage Features:

The MFP-20 is controlled via a DB25 interface. Pins 1-8 are used for setting the output power (8-bit, 0-255, corresponding to 0-100% standard power data). Pin 9 is a latch for simultaneous power setting. Pins 10-15 and 24 are ground. Pins 16 and 21 indicate laser alarm status (e.g., laser temperature out of range, normal operation, high optical "Back Reflection" leading to automatic shutdown, MO failure). Pin 17 provides a 5±0.25VDC auxiliary power supply for independent guide laser operation. Pin 18 controls the Master Oscillator (MO) ON/OFF. Pin 19 is the Laser Modulation input (Power Amplifier ON/OFF). Pin 20 is for Pulse Repetition Rate (Synchronization) input, accepting TTL/CMOS square waves with a duty cycle from 0.1 to 0.9. Pin 22 controls the Guide Laser (red diode) ON/OFF. Pin 23 is the Emergency Stop Input, where a LOW signal automatically switches off the laser.

Installation and Operation:

Connect the electrical and optical molds (cables).
Ensure the AC voltage selector is set correctly (24V) and plug the remote control unit into the mains supply.
Install the external DC power supply (24V) and connect it to the laser module.
Before operation, ensure Pin18, 19, 22, 23 are at level L, and Pin20's repetition frequency is within the stated range.
Connect the 24VDC power and laser power line (+24V to brown, ground to green/yellow, - to blue).
The laser will warm up for about 120 seconds after receiving 24VDC power.
Set the emergency stop (Pin23) to H.
Set the required power via Pins 1-8.
Turn on the MO (Pin18) and wait approximately 4ms.
Modulate the laser via Pin19. The modulation speed is limited; the typical time should be 250µs, and the modulation period should be above 500µs (related frequency > 2kHz).
After operation, if the idle time exceeds 20ms, turn off the MO to reduce power consumption and extend MO life.
After finishing a task, turn off the BS & MO (Pin18 & Pin19 should be L).
Disconnect the 24VDC power.

Safety Precautions:

The MFP-20 is a Class IV laser product.
Avoid eye or skin exposure to direct or scattered radiation (1064 nm).
Always wear laser safety glasses during operation.
Never look directly into the output head.
Do not open the device; no user-serviceable parts inside. All service must be performed by qualified MAXPHOTONICS personnel.
Ensure proper grounding of the power source.
Use the correct DC power source voltage (24V).
Maintain sufficient airflow for the three cooling fans at the rear panel.
Do not mark on copper material in the central area, as it may damage the laser.
Provide continuous uninterrupted power supply voltage to prevent damage from power interruptions.
Keep the output lens clean; use lens tissue and avoid solvents. Do not touch the output lens.
Do not install a collimator when the laser is active.
Do not separate the fiber and the laser head.

Maintenance Features:

The device is designed for minimal user maintenance. No operator-serviceable parts are inside. All servicing and maintenance are performed at the factory by qualified MAXPHOTONICS personnel. Opening the device or any tampering will void the warranty. It is crucial to keep the output lens clean. After use, the collimator should be recovered.

Warranty and Return Process:

The warranty for Maxphotonics fiber lasers is 24 months from the customer's receipt date. MAXPHOTONICS warrants products against defects in materials and workmanship under normal use. Repairs or replacements are at MAXPHOTONICS' option. Warranty is voided by tampering, misuse, neglect, accident, use outside specifications, or improper installation/maintenance. Fiber connectors are not covered by the warranty. Returns require a Return Material Authorization (RMA) number from MAXPHOTONICS Quality Manager. Defective products must be returned freight prepaid and insured. Non-warranty returns and international returns may incur freight costs, duties, and taxes. All returns must be adequately packaged to prevent damage.