The AMADA MA-660A is a program unit designed for use with AMADA welding power supplies, enabling the setting of operating conditions and other parameters for these products. It functions as a dedicated interface for configuring and controlling the welding process.
Function Description
The MA-660A serves as a program unit that connects to AMADA welding power supplies. Its primary function is to allow users to set and modify the operating conditions of the connected welding equipment. This includes configuring various parameters essential for the welding process. The unit is designed to be versatile, capable of being connected to applicable products and used by rewriting the contents of its memory.
Upon power-on, the MA-660A typically operates immediately as a program unit for the connected product. However, in certain scenarios, it may take several minutes to rewrite the contents of its memory before it can be fully utilized. These scenarios include:
- When there is no program stored in the MA-660A's memory. In this case, the program needs to be downloaded, and the user must select "YES" for "OVER WRITE" and press the ENTER key to rewrite the memory contents.
- When the model number or program version of the welding power supply stored in the MA-660A differs from that of the currently connected welding power supply. Similar to the above, the program needs to be downloaded, and the user must select "YES" for "OVER WRITE" and press the ENTER key to rewrite the memory.
- When the user intentionally wants to rewrite the program in memory by pressing the upper portion of the CURSOR key at power-on. Again, "YES" for "OVER WRITE" must be selected, and the ENTER key pressed to initiate the rewrite.
The unit features a set of keys for navigation and input:
- TROUBLE RESET key: Used to turn off an error message after the cause of the trouble has been resolved.
- CURSOR keys: Used to move the cursor to select an item on the display.
- +ON/-OFF keys: Used to change the value of a selected item or to toggle it on and off.
- ENTER key: Essential for writing set or changed values and ON/OFF data into the connected Power Supply. It is crucial to press this key after any data is set or changed, before moving the cursor, as the Power Supply will not recognize the set data otherwise.
- MENU key: Used to display the MENU screen and to return to the MENU screen from any other display.
The MA-660A also displays fault codes and messages in the event of a problem with the connected Power Supply, aiding in troubleshooting.
Important Technical Specifications
- Power supply voltage: 24V DC (supplied from the welding power supply).
- Display: TFT liquid crystal panel.
- Operation environment:
- Ambient temperature: +5°C to +40°C.
- Maximum humidity: 90% max. (Dew condensation not allowed).
- Maximum altitude: 1000 meters max.
- Storage environment:
- Temperature range: -10°C to +55°C.
- Maximum humidity: 90% max. (Dew condensation not allowed).
- Case protection: IP40.
- Outline dimensions: 165 mm (H) x 200 mm (W) × 40 mm (D) (Not including projections).
- Mass: 470 g.
The connector for the circuit cable is a 10-pin male connector on the MA-660A side, designed to connect to a female circuit cable. The pin assignments are:
- RD + / SD +
- RD - / SD -
- NC (No Connection)
- NC
- NC
- +24 V DC IN (supplied from the connected welding power supply)
- 0V
- Shield
- NC
- NC
Usage Features
The MA-660A is designed for straightforward operation, acting as a user-friendly interface for AMADA welding power supplies. Its ability to rewrite memory contents ensures compatibility with different models and program versions of welding equipment, making it a flexible tool in a welding environment. The clear TFT liquid crystal panel provides visual feedback for settings and error messages.
Important usage precautions:
- The circuit cable must be connected securely, aligning it with the key groove of the connector to prevent damage. Only cables purchased from AMADA should be used.
- No settings or changes can be made to any item from the receipt of the start signal through the end of the weld sequence and until the start signal is turned off. Attempting to do so will result in an error message (e.g., "ISB-300A IS BUSY OR NOT CONNECTED"), requiring the TROUBLE RESET key to clear. If a screen change to call up another setting schedule is attempted during a weld sequence, the TROUBLE RESET key may not work, necessitating a power cycle.
Maintenance Features
The manual emphasizes the importance of periodic maintenance and inspection of the equipment. Any damage should be repaired promptly before starting operation.
Safety Precautions for Maintenance and Handling:
- Prohibition: Do not touch the inside of the equipment unnecessarily due to high voltages. Only open the cover for battery replacement. For inspection or repair, consult AMADA.
- Prohibition: Never disassemble, repair, or modify the equipment, as this can cause electric shock or fire.
- Prohibition: Never burn, destroy, cut, crush, or chemically decompose the equipment, as it contains gallium arsenide (GaAs).
- Prohibition: Do not put hands between electrodes during welding.
- Prohibition: Do not touch welded parts or electrodes immediately after welding, as they are very hot.
- Prohibition: Do not splash water on the equipment to prevent electric shock and short circuits.
- Mandatory: Connect specified cables securely to prevent fire and electric shock.
- Prohibition: Do not damage connecting cables by treading on, twisting, or tensing them.
- Mandatory: Stop operation immediately if any trouble (e.g., burning smell, abnormal sound, smoke) occurs and consult AMADA or a distributor.
- Prohibition: Persons with pacemakers must stay clear of the welding machine during operation due to magnetic fields.
- Mandatory: Wear protective gear (gloves, long-sleeve jacket, leather apron) to protect against surface flash and expulsion.
- Mandatory: Wear protective glasses to protect eyes from flash and expulsion.
- Prohibition: Do not place water containers on the equipment to prevent insulation deterioration, electric leak, and fire.
- Mandatory: Keep combustible matter away from the equipment. If removal is impossible, cover with non-combustible material.
- Prohibition: Do not cover the equipment with blankets or cloth to prevent overheating and fire.
- Prohibition: Do not use the equipment for purposes other than welding.
- Mandatory: Use ear protectors to prevent hearing damage from loud noises.
- Mandatory: Keep a fire extinguisher nearby in the welding shop.
- Mandatory: Maintain and inspect the equipment periodically and repair damage before operation.
Precautions for Handling:
- Handle the transformer with care to avoid impact.
- Avoid using the equipment in damp places (humidity > 90%), hot/cold places (temperatures > 40°C or < 5°C), near high noise sources, where chemicals are handled, where water will condense, dusty places, or at altitudes above 1000 meters.
- Clean the exterior with a soft, dry cloth or a slightly damp cloth. For heavy dirt, use diluted neutral detergent or alcohol. Avoid paint thinner, benzine, etc., to prevent discoloration or deformation.
- Do not insert screws, coins, or other foreign objects into the equipment to prevent malfunctions.
- Operate the equipment strictly according to the operation manual.
- Operate switches and buttons carefully by hand; avoid using screwdrivers or pens to prevent malfunction or damage.
- Operate switches and buttons one by one; simultaneous operation of multiple controls can cause malfunction or damage.
On Disposal:
- This product contains gallium arsenide (GaAs). At disposal, it must be separated from general industrial or domestic waste and disposed of according to applicable laws and regulations.
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