The RDWelder-SW is a handheld laser welding system developed by Shenzhen Ruida Technology Co., Ltd. It is designed for fiber laser welding applications, offering a comprehensive set of features for efficient and precise operation.
Function Description:
The RDWelder-SW system acts as a controller for handheld laser welding, supporting various functionalities to optimize the welding process. It incorporates double galvanometer motor control, enabling different swing types for versatile welding patterns. The system also features automatic wire feeding, which streamlines the material supply during welding. To ensure precise laser output, it includes slow rise and fall of laser power, allowing for controlled power transitions. Gas management is also integrated, with options for gas on in advance and gas off delay, which are crucial for shielding the weld pool and preventing oxidation. The system is designed for ease of operation, providing real-time display of input and output (IO) status, alarm information, and motion status, which helps operators monitor and troubleshoot the welding process effectively.
Important Technical Specifications:
The system's mainboard and touch screen are key components. The touch screen, with dimensions of 209.50mm x 150mm (overall) and a viewing area of 196.50mm x 137mm, serves as the Human-Machine Interface (HMI). The mainboard has a mounted dimension of 140mm x 110mm.
Power Interface: The power interface is a 3-PIN green terminal, requiring a DC 24V external power input with a current output of more than 3A. It includes connections for +24V_IN (Power input), GND (Ground), and PGND (External shield ground, typically connected to the case).
HMI Interface: This is a 5-PIN green terminal that supplies power to and communicates with the HMI. It includes connections for +24V (Power supply, 500mA), TXD (HMI sending end for serial communication), RXD (HMI receiving end for serial communication), GND (Ground), and PGND (External shield ground).
Laser Source Interface: A 6-PIN green terminal for controlling the laser source. It provides +24V (HMI power output, maximum 500mA), Enable (Laser enable signal, 24V level, high voltage is effective), PWM (Modulating signal, duty cycle 1% to 99% adjustable, 24V), DA (Analog voltage output, 0-10V analog voltage for laser peak power regulation), GATE (Red light indicator, 24V, low voltage is effective), and GND (Ground).
Galvanometer Interface: This interface is compatible with general digital galvanometer interfaces on the market. It includes connections for CLK- (Clock signal negative terminal), SYNC- (Sync signal negative terminal), XChannel- (Galvanometer X signal negative terminal), YChannel- (Galvanometer Y signal negative terminal), GND (Ground), CLK+ (Clock signal positive terminal), SYNC+ (Sync signal positive terminal), XChannel+ (Galvanometer X signal positive terminal), and YChannel+ (Galvanometer Y signal positive terminal).
Digital IO Interface: The mainboard offers a general IO interface with OC (Open Collector) output, capable of directly driving relays with a maximum current of 500mA. Key pins include:
- IN3 (External start button input): Generally connected to the start button switch of the welding head.
- IN4 (Argon alarm input): For argon gas alarm.
- IN5 (Cool water flow alarm input): For cooling system alarm.
- IN6 (Laser fault alarm input): For laser fault alarm.
- IN7 (Safety lock signal input): This pin must be connected to the nozzle of the handheld head, and the welding metal materials must be connected to GND. During welding, the nozzle should be in contact with the safety clamp.
- OUT0 (Protective gas): For controlling the gas blowing of protective gas.
- OUT1 (Modulation state output): For outputting the laser PWM modulating signal state.
- OUT2 (Wire feeding control interface): For controlling automatic wire feeding.
- OUT3 (Wire drawing control interface): For controlling automatic wire drawing.
- DIR- (Motor wire feeding direction signal is negative): For wire feeding motor direction.
- PUL- (Motor wire feeding pulse signal is negative): For wire feeding motor pulse.
- +5V (Motor wire feeding driver common anode): Common anode for the wire feeding motor driver.
- +24V (Maximum output current is 1A): +24V power output.
- RESERVE pins: These pins are reserved and should not be wired.
Usage Features:
The RDWelder-SW system offers a user-friendly HMI for setting various parameters:
Welding Parameters:
- Version No.: Allows setting multiple sets of welding parameters for different applications.
- Power: Sets the peak power of the laser during welding.
- PWM frequency: Sets the frequency of the laser PWM modulating signal.
- PWM pulse width: Sets the pulse width of the laser PWM modulating signal.
- Duty cycle: Sets the duty cycle of the PWM signal (range 1% to 100%).
- Swing frequency: Sets the motor swing frequency.
- Diameter: Sets the motor swing width.
- Gas on delay: Configures a delay after the external start button is pressed before the laser emits light, allowing gas to blow in advance.
- Gas off delay: Configures a delay after the laser stops before gas blowing stops, ensuring continued shielding.
System Parameters:
- Alarm signal enable: When enabled, welding stops and the laser closes upon alarm generation. If disabled, welding continues despite an alarm.
- PWM setting method: Selects whether pulse width or duty cycle is effective in welding parameters.
- Wire feeding time: Sets the duration of automatic wire feeding (must be less than gas on delay).
- Wire drawing time: Sets the duration of automatic wire drawing.
- Input port status: Configures the detection logic for various input IOs to match the machine's actual situation, preventing false alarms.
Advanced Parameters:
- Swing type: Used to set different swing patterns.
- Maximum frequency: Sets the upper limit for laser PWM frequency.
- Maximum diameter: Sets the upper limit for swing diameter.
- Diameter compensation: Adjusts for nuances between set and actual diameters (default is 1 for no compensation).
- Focal length: Sets the focal length of the welding head lens, which must match the actual machine to ensure correct diameter.
- Maximum deflection angle of galvanometer: Sets the range of the galvanometer's deflection angle.
- Slow rise time: Sets the time for the laser analog voltage (0-10V) to rise from 0 to maximum power when enabled.
- Slow fall time: Sets the time for the laser analog voltage (0-10V) to fall from maximum power to 0 when stopped.
- X/Y axis offset: Modifies slight offsets in the center of the X/Y axes.
- X/Y axis correction coefficient: Adjusts for nuances between set and actual lengths on the X/Y axes (default is 1 for no modification).
- Straight line coefficient: Adjusts swing speed at the ends and middle of a straight line swing (range 0.01 to 1). A value of 1 means uniform speed, while 0.01 means faster speed at ends and slower in the middle.
Maintenance Features:
The manual emphasizes the importance of proper handling and inspection upon receiving the product.
- Receiving and Unpacking: Users are instructed to check for external damage to the packaging and notify the carrier if any is found.
- Inspection: After unpacking, it is crucial to verify that the product is complete and all parts are in good condition. Any missing or damaged parts should be reported to Ruida Technology immediately.
- Packaging Retention: Users are advised to keep the packaging materials and wiring accessories for potential future use or returns.
- Safety Information: The manual includes clear safety guidelines using various indicators (Danger, Warning, Cautious, Important, Laser Radiation symbol) to highlight potential risks and ensure safe operation. Users are responsible for designing effective error handling and safety protection mechanisms in their machines.
- Documentation: Ruida Technology reserves the right to modify documents and product specifications without prior notice. Users are encouraged to contact Ruida Technology for any comments or suggestions regarding the product and instructions.
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