application

Low-power fiber laser (DB25 universal interface)

CO2 laser (PWM signal interface)

High-power fiber laser (analog)

control power, frequencey,duty, block time

High power laser power controller

Master, modbus RTU slave, PLC or HMI,

With 1 0-10v analog, CN1 can expand the other 2 analog

Instead of HMI touch screen, adjust power

[Laser Power Controller] Mainly used in applications where offline

and independent laser control are required, such as assembly lines

The PLC controls the laser switch through the Y-position, and the

PLC communication (modbus) controls the laser frequency.

Rate and other parameters; other motion control systems, the CNC

system controls the laser switch through the output signal.

[Laser Power Controller] Main application industries: laser scribing,

laser cutting, laser welding, laser welding

Holes, laser flights, etc. systems.

Overall structure diagram

Figure 1-1 Front view of [Laser Power Controller]

among them,

CON1: Two additional DA expansion ports

CON2: serial port +485 interface, DB9 male. Touch screen

or control panel

CON3: Standard IPG fiber laser interface. When the fiber

laser is not connected, the related pins can be used as

general IO, PWM.

4pin power supply: [5V+] is connected to the positive

terminal of 5V switching power supply, [5V-] is connected

to the negative terminal of 5V switching power supply, [S2]

For the DA+ output signal, [S1] is the DA-output signal.

2pin trigger: When the trigger function is needed, the trigger

signal can be connected. The internal is an optocoupler, and

the maximum frequency is 4KHz.

[T+] is the trigger signal positive, [T-] is the trigger signal

negative,

2 electrical connection

2.1 Interface Description

2.1.1 Power Interface

The control card needs 5V DC power supply. It is

recommended to use a 5V/3A DC power supply. Power

is connected from the 4P green socket pin.

Figure 2-1 CON1 Power Input Interface

[5V+] is connected to the positive terminal of the 5V switching

power supply, [5V-] is connected to the negative terminal of

the 5V switching power supply, [S2] is the DA+ output signal,

and [S1] is the DA-output signal. Analog is used to connect a

high-power laser and control power.

In addition, the positive 5V power supply can be applied directly

through the 17th pin of CON2.

2.1.3 Standard IPG Fiber Laser + High Power 24V-PWM

Enable Interface CON

 

Figure 2-5 Pin definition of CON2 interface

When connected to a low-power fiber laser, you can

directly use a DB25 core to connect the laser and the

[laser power control

[]: When using a CO2 laser, use DB25.20 (20-pin) as

the PWM+, DB25.14 (14-pin)

 As PWM+ and CO2 laser PWM+, PWM-butt.

 In the high power laser mode, use the 24, 12, 25, 13

pins of DB25:

 l EN24, connected to the laser enable signal, 24V

level signal output

l PWM24, connected to the laser’s PWM input, 24V

level signal output

 l G24, connected to the negative pole of the 24V

power supply, supplying power to the high-power

section of the controller

 l 24V+, connected to the positive terminal of the

24V power supply, to supply power to the high-power

part of the controller

2.1.4 Laser On/Off Control Interface

The laser switch external control interface can be directly

connected with the output Y point of PLC or other controllers.

There are 2 ways to connect:

nT+ then Y, T-connect G24 (24V negative)

nT+ then 24V+, T- then Y

3 interface instructions

 As shown in the figure below, there are 3 buttons for

selecting and adjusting the size. When adjusting the

parameter size, press the key

 Press 1.5s again to quickly accumulate.

3.1 [power adjustment], press the “Select” button to

select the lower left power section,

 After you can adjust the size

 3.2【Frequency adjustment】, press “Select” button

to select the right frequency part below,

 After you can adjust the size

 3.3 [Internal Control/External Control], press the

“Select” button to select the upper right part, then you can

 Internal control of IN/EX (IN internal control, EX

external control) refers to direct panel adjustment ON, OFF.

 External control refers to the output of the controller through

T+, T-signals, external PLC, etc.

 Point to control

4 serial port modbus protocol modification parameters

and switch laser control

 system

 The controller’s [parameter external control version:

LPC-PLUS2, more than one serial line] can be controlled

through the RS232 serial port

All the parameters of the department, and can be controlled

outside the switch laser. Serial port baud rate is 9600,

modbus slave station number 5. Modbus related changes

Quantity distribution and function are as follows:

Variable No. Function Comment

The

X1 current laser switch status for master reading

The

X10 switch laser switch status corresponds to a

self-healing button

The

X11 Switching working mode Internal control, external

control, and burst point Corresponding to a self-healing button

The

X2 DA1 command mode or triangular wave mode

= 1 Extended DA1 mode control,

Command Mode =0 Triangular Wave Mode Command

Mode refers to the host

Arbitrary control of analog output values

X3 DA2 command mode or triangular wave mode

=1 Extended DA2 mode control

Command Mode =0 Triangle Wave Mode

X12 switch DA1 command and triangle wave mode

Corresponding to a self-healing button

The

X13 switch DA2 command and triangle wave mode

Corresponding to a self-healing button

The

RegBuf_HOLD[0] power can be read, modified

The

RegBuf_HOLD[1] frequency can be read and modified

The

RegBuf_HOLD[2] Duty Cycle Can Read, Modify

The

RegBuf_HOLD[3] Laser Type, 1–Optical OP, 0–CO2,

Readable, Modified

2–high power mode

RegBuf_HOLD[4] burst time, unit 0.1s can be

read, modified

The

RegBuf_HOLD[5] operating mode, 0 (internal control)

, 1 (external control), 2 (explosion) can be read, modified

The

RegBuf_HOLD[6] Fiber Laser Alarm Status

For Master Reading

The

RegBuf_HOLD[7] DA0 command mode real-time

value parameters can be read and modified

The

RegBuf_HOLD[8] DA0 initialization value is only

executed once at power-on DA0

The

RegBuf_HOLD[9] DA1 command mode real-time

value parameters can be read and modified

The

RegBuf_HOLD[10] DA1 Initialization Value

Performed only on power-up DA1

The

RegBuf_HOLD[11] triangular wave mode DA1 speed

level can modify the triangular wave frequency

The

RegBuf_HOLD[12] DA1 Amplitude Level Can

Modify Triangle Wave Amplitude

The

RegBuf_HOLD[13] DA2 command mode real-time

value parameters can be read and modified

The

RegBuf_HOLD[14] DA2 Initialization Value Performed

only on power-up DA2

The

RegBuf_HOLD[15] triangular wave mode DA2 speed

level can modify the triangular wave frequency

The

RegBuf_HOLD[16] DA2 Amplitude Level Can Modify

Triangle Wave Amplitude

 

 

Wei Lun touch screen, software interface as shown below,

the touch screen EB8000 engineering program provided free of charge