MAX Fiber Laser Source Guide

9 min read·Updated Nov 2026
Applies toAccuMetalTopicReference

Maxphotonics MFSC-1000X / MFSC-1500X (G4.0) continuous-wave fiber laser · as fitted to Thunder AccuMetal 1500 W machines

The laser source generates the beam and sends it down the fiber to the cutting head. It is water-cooled, sealed and has no user-serviceable parts. This guide covers what an operator needs: panels, specs, cooling, start-up, connector care and the source's own error list. Full alarm handling is in the companion AccuMetal Errors and Alarms guide.

Class 4 laser. The 1070–1090 nm beam is invisible and can permanently damage eyes and skin, and ignite solvents. Never look into the fiber or output head. Remove the QBH end cap before the source is powered, but never connect or disconnect the fiber while the laser is on. Do not open the source: there is a shock hazard and opening it voids the warranty.
Quick factsMFSC-1000XMFSC-1500X
Output power1000 W1500 W
Wavelength1080 nm (1070–1090)1080 nm (1070–1090)
Power adjustment10–100%10–100%
Supply200–240 VAC single-phase200–240 VAC single-phase (360–440 VAC 3-phase optional)
Input power at full output3.2 kW5.0 kW
Recommended breaker32 A, close to the source32 A, close to the source
Cooling water flow≥10 L/min (2.6 gpm)≥15 L/min (4 gpm)
Weight32 ± 2 kg (71 lb)36 ± 2 kg (79 lb)

Inside:

  1. Front panel
  2. Back panel
  3. Specifications
  4. Cooling and environment
  5. Start-up and control modes
  6. Monitoring software
  7. Fiber connector (QBH) care
  8. External control (CTRL) pinout
  9. Error list, service and warranty

1. Front panel

Front panel controls and lights

#ItemWhat it does
1ALARM lightLights red on a fault
2ACTIVE lightLights green when the laser is normal
3POWER lightSource has power
4START buttonHardware start signal for external-control mode
5Key switch (OFF / ON)Main power switch for the laser
6Emergency stopCuts laser emission immediately

2. Back panel

Back panel connections

Back panel connections

#ItemWhat it does
1POWERAC power switch
2AC input200–240 VAC (1500X: 360–440 VAC optional)
3ETHERNETLink to the monitoring software
4CTRLDB25 external control connector (to the machine controller)
5WATER OUTCooling water return
6WATER INCooling water supply
7OPTICAL OUTPUTDelivery fiber to the cutting head

3. Specifications

Optical

ParameterValue
Operating modeContinuous wave (CW) or modulated
PolarizationRandom
Output power1000 W (1000X) · 1500 W (1500X) at 100% CW
Power tuning range10–100%
Wavelength1070–1090 nm, nominal 1080 nm
Spectral width (3 dB)3–5 nm
Power stability±1–1.5% over 1 h · ±2–3% over 24 h
Beam quality (BPP)1.5 mm·mrad (50 μm fiber, QBH)
Switching on / off time50–100 μs (10–90%)
Modulation rateUp to 20 kHz
Red guide laser200 μW
Delivery fiber50 μm core · 1000X: 10 m (5, 15 optional) · 1500X: 15 m (5, 10 optional)
Minimum fiber bend radius200 mm (8 in)
Output connectorStandard QBH

General

ParameterValue
Operating voltage200–240 VAC (nominal 220) · 1500X optional 360–440 VAC
Input power at 100%3.2 kW (1000X) · 5.0 kW (1500X)
Ambient temperature10–40 °C (50–104 °F)
Relative humidity10–85%, non-condensing
Storage temperature−10 to 60 °C (14–140 °F)
Dimensions (W × D × H)482.6 × 550 × 133 mm (19 × 21.7 × 5.2 in), 19" rack width
Weight32 ± 2 kg (1000X) · 36 ± 2 kg (1500X)

4. Cooling and environment

Two loops: cool water for the source, room-temperature water for the head

Chiller loop diagram for the laser source and QBH cutting head

Chiller loops on the AccuMetal: L = laser source, H = QBH and cutting head

Requirement1000X1500X
Chiller set temperatureAmbient ≥30 °C: 26 °C · below 30 °C: 22 °CSame
Water pressure≥3 bar (44 psi); main-line drop ≤0.5 barSame
Water flow (source)≥10 L/min≥15 L/min
Chiller cooling capacity≥2.5 kW≥3.5 kW
QBH / head loop≥2 L/min, ≥3 bar, 28–30 °C; 6 × 4 mm tube; head drop ≤1.5 barSame
  • Change the water and filter every month. Use distilled or deionized water.
  • Freezing weather: switch to a glycol antifreeze mix before temperatures reach 0 °C (32 °F). Don't overdose; too much antifreeze cuts heat transfer. Go back to distilled water and a new filter after winter.
  • Long shutdowns: blow the water out of the inlet and outlet lines with clean air so nothing freezes inside.
  • Hose colors: blue = supply, red = return. Swapped hoses trigger a water-flow or pump-temperature alarm.
Condensation is the main environmental risk. Keep the source in a clean room at ≤30 °C and ≤70% humidity, keep the chiller in a different space, and never feed the cutting head water colder than the room.

5. Start-up and control modes

On the AccuMetal, the machine's laser switch powers the source and chiller together (see Startup and Shutdown). The source itself starts in this order:

  1. Chiller running and at temperature.
  2. End cap removed from the collimator / QBH, and its window clean.
  3. Emergency stop released.
  4. Source power on.
  5. Key switch to ON.
  6. Press START (external-control mode).
Make every electrical and water connection before power-up, and isolate power before any wiring. Wear laser safety eyewear whenever the source can emit.
ModeControlled byUsed for
Internal controlThe MAX monitoring softwareChecking the source and measuring power
External controlThe machine controller via the CTRL cable: enable, modulation, 0–10 V power, STARTCutting (normal AccuMetal operation)
Commission and align at low power first, then raise power step by step.

6. Monitoring software

  1. Install the MAX fiber laser monitoring software (and .NET 4.6 if Windows needs it) from the Maxphotonics download center.
  2. Connect the source's ETHERNET port to the PC and power the source.
  3. Open the software, choose IP2, enter the source IP 192.168.0.178 (default) and click Login. Sources with an RS232 port use COM and the COM port number instead.

The software's pages: Monitor (status lights, power, water flow, temperatures, back-reflection), Charts, Decryption (enter unlock codes from support), and Log (alarm history). On the AccuMetal a login window may open at start-up; closing it doesn't affect cutting.

7. Fiber connector (QBH) care

A dirty or damaged QBH window can burn the connector and the cutting-head optics, and that damage isn't covered by warranty. Inspect it every time the connector is removed.

Inspection and cleaning sequence

You need: powder-free gloves or finger cots, lint-free optical wipes and swabs, optical-grade anhydrous ethanol (over 99.5%), oil- and water-free compressed air, a microscope and a light.

  1. Turn the key switch to OFF and remove power.
  2. Take off the black outer sleeve but leave the white inner cap on. Clean the outside of the connector with optical cleaner, wipe and blow dry.
  3. Set the connector in the microscope holder, remove the white cap and focus on the protective window.
  4. If you see dirt: wet a swab with a few drops of alcohol (shake off the excess), place it on the dirt and gently push the dirt to the edge of the window. Repeat with fresh swabs until clean, then check again.
  5. Refit the cap and sleeve, or insert the connector into the cutting head straight away and lock it.
Never reuse a swab, touch the window or the swab tip, or blow on the window by mouth. Blow compressed air from the side, not straight at the window. Clean the caps before refitting them.

8. External control (CTRL) pinout

For technicians. The CTRL port is a DB25 connector to the machine controller.

PinWireSignalSpecification
18 / 5Red / red-whiteEnable input + / −High 20–24 VDC, low 0–5 VDC, 5–15 mA
17 / 4Black / black-whiteModulation input + / −High 20–24 VDC, low 0–5 VDC, 5–15 mA
16 / 3Yellow / yellow-blackRed guide light + / −High 20–24 VDC, low 0–5 VDC, 5–15 mA
15 / 2Green / green-whiteAnalog power (DA) + / −0–10 V sets power: 1 V = 10%, 10 V = 100%
14 / 1Brown / brown-whiteFault output 1 / 2Dry contact: closed = fault, open = normal; ≤30 VDC, ≤100 mA
19 / 6Blue / blue-whiteInterlock + / −Shorted = laser can emit; open = locked, no emission
—Green-yellowGroundProtective ground

Laser output follows the enable signal, then the modulation signal, at the power set by the analog voltage.

9. Error list, service and warranty

#AlarmMeaningWhat to do
1Internal light-path warningOutput is low compared with the commandCheck for low modulation frequency, peak power or cutting power settings
2Water-cooling plate overheatThe source's cooling plate is too hotCheck the chiller set temperature meets the table in section 4
3Emergency stopThe E-stop is pressedRelease it and restart; contact support if it persists
4Water flow / pump temperatureFlow or pressure problem in the chiller or sourceCheck chiller pressure, look for swapped inlet and outlet hoses, clear lines with an air gun
5OvercurrentInternal current too highCheck the 0–10 V analog signal isn't over its limit; otherwise contact support
6OvervoltageSupply voltage out of rangeCheck the mains voltage is within spec
7QBH installationThe QBH isn't seated in the cutting headSeat and lock the connector; contact support if it persists
8Encryption expiredALARM and ACTIVE flash red and greenContact Thunder Laser support for a new code
Back-reflection lockout. If the head moves but no laser fires and a full restart doesn't help, the source may have locked itself after reflected light came back into it (most often on copper, brass or aluminum, or with a dirty protective window or incomplete piercing). The Locked light shows on the MAX Monitor page, while NcStudio may show no clear alarm. Restarting won't clear it. Stop, inspect the window, nozzle, focus and parameters, save screenshots, and contact Thunder Laser support for an unlock code. Full steps: AccuMetal Errors and Alarms, "Restarting safely and locks."

Service

  • There are no user-serviceable parts. All repairs go through Thunder Laser support, who coordinate with Maxphotonics.
  • Don't return a source without an RMA. Keep proof of any shipping damage for the carrier claim.

Warranty limits (summary)

Maxphotonics covers defects in materials and workmanship for the contract period. Not covered: opened or modified sources; misuse, neglect or accidents; use outside the specifications or this guide; damage from user software or interfaces; improper installation or maintenance; fittings and fiber connectors. Report defects within 31 days of finding them.

Summarized from the Maxphotonics MFSC 1000X–1500X (G4.0) CW Fiber Laser Series user manual. Specifications are Maxphotonics'; the official manual and the source's nameplate govern. Thunder AccuMetal 3000 W machines use a different source model.

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