A brand new 15 watt water-cooler laser module

Technical features

Laser type: Diode laser

Laser diode number: 2

Laser diode type: Z80

Wavelength: 445 nm

Optical power: 14 W

Lens type: 2 x G7

Focal length: 30 mm (from the lower laser edge)

Air-blast: Air nozzle V1

Working temperature: 15-35 C

Laser operation critical temperature: 45-50 C

Laser diode cooling: Water

Hose ID of the cooling system: 4-5 mm

Thermal output: 38W

Useful voltage: 12 V

Consumption current: 7 A

Laser diode control board: 2 x Endurance MO2 PC

Option to turn on one laser diode: Yes

Laser diode thermal protection: Yes

Operation modes: “Full Power”, “PWM”, “Analog”, “Focus mode”

Input control signals: PWM 3-24 V frequency 90-50000 Hz (maximum PWM duty cycle 99.9%), Analog 0-10 V (0-100%)

Cable length from the box to the laser head: 1.5 m

Laser head:

Material: Aluminum

General size: 75x97x68 mm

Weight: 590 g

Control box:

Material: PLA plastic

General size: 182x152x85 mm

Weight: 950 g

What is in the package:

Laser head
Control box
Power supply 12V 8A
Two hoses, 1.5m long, to connect to the cooling system
Hardware kit
Safety goggles
Focusing plate
Protective gloves
Stickers

Laser head general assembly guide

1 – Baseboard

2 — Water unit with laser diode №1

3 — Water unit with laser diode №2

4 — Focusing lenses

5 — Reflecting mirror

6 – PBS

7 — Protecting screen

8 – Air nozzle

9 – Fittings to connect the cooling system hoses

10 — Fixation holes M3 h4 mm

11 — Cable connecting the box and the laser head

Control elements of the control box

1 – Box start switch

2 — Cutoff switch of the laser diode №1 control unit

3 – Cutoff switch of the laser diode №2 control unit

4 — Laser mode switch

5 — Laser diode №1 input voltage readout

6 – Laser diode №2 input voltage readout

7 — Laser diode №1 output voltage and current readout

8 – Laser diode №2 output voltage and current readout

9 – Laser diode №1 temperature controller

10 – Laser diode №1 temperature readout

11 – Readout of the laser diode №1 adjusted maximum temperature

12 – Laser diode №2 temperature controller

13 – Laser diode №2 temperature readout

14 – Readout of the laser diode №2 adjusted maximum temperature

15 — Supply unit connector

16 — Wires for laser control via PWM signal 3.3-12V / analog signal 0-10V

17 – Wires for laser control via PWM signal 12-24V

18 — Cable connecting the laser box with the laser head

Operation modes:

“Full Power” mode

Switch “4” at “I” position.

In this mode, the laser is operating at full power.

“PWM” mode

Switch “4” at “0” position.

The laser is controlled via a PWM signal with a frequency of 90Hz-50kHz.

When controlled by a PWM signal with a voltage of 3.3-12V, the PWM signal is fed through wires “16” (in the blue braid). The red wire is “PWM” (+), the black wire is “GND” (-).

When controlled by a PWM signal with a voltage of of 12-24V, the PWM signal is fed through wires “17” (in the black braid). The red wire is “PWM” (+), the black one “GND” (-). The laser control is possible through wires “17” using a PWM signal of 3-24V, but with a controlling PWM signal of 3.3-12V it is recommended to use wires “16”.

“Analog” mode

Switch “4” at “II” position .

In this mode, the laser is operating using an analog signal with a voltage of 0-10V, where 0V is a laser power of 0%, 10V is a laser power of 100%.

The analog control signal is fed via wires “16” (in the blue braid). The red wire is “+”, the black one “-“.

“Focus mode”

To run the mode it is necessary to:

1. Turn off the diodes using switch “1” or “2” and “3”.

2. Set button “4” to position “I”.

3. Turn on the diodes using switch “1” or “2” and “3”.

This mode is used for focusing the laser on a work material. In this mode, the laser is constantly on at 0.1% power.

Laser diode temperature setting

The laser diode temperature controllers have two readouts each. Indicators “10” and “13” display the current temperature of the laser diodes. Indicators “11” and “14” display the temperature above which the laser diode will be automatically turned off.

There are two buttons: “SET” and “C/F” to leftward of the temperature controllers.

The “C/F” button switches the temperature display from Celsius to Fahrenheit and vice versa.

Changing of the laser diode maximum allowable temperature:

1. Press the “SET” button. The maximum allowable temperature readout (“11”, “14”) starts flashing.

2. Press the “SET” button to increase the maximum allowable temperature or press the “C/F” button to decrease it.

3. A few seconds later after the last button press, the controller will save the set temperature and exit the temperature setting mode.

If the set temperature is exceeded the laser diode will turn off, and it will be possible to activate it again only when its temperature will drop below the maximum allowable by a given number of grades.

To set this number of grades, it is necessary to:

1. Press the “SET” button for about 5 seconds. After that, the controller will switch to the advanced setting mode, and the upper readout (“10”, “13”) will display the “P0” value, and the lower one (“11”, “14”) will display “H”.

Temperature_control2

2. Press the “SET” button once, after that the upper readout (“10”, “13”) will display “P1”, and the lower one (“11”, “14”) will display the specified number of grades by which the laser diode temperature should drop after its emergency shutdown.