MA-660A Thank you for purchasing our Program Unit MA-660A. Before using, read this operation manual carefully; after reading, save it in a proper place where you can easily access. Contents Special Precautions ......................1-1 (1) Safety Precautions....................... 1-1 (2) Precautions for Handling ..................... 1-4 (3) On Disposal .........................
MA-660A 1. Special Precautions (1) Safety Precautions Before using, read "Safety Precautions" carefully to understand the correct method of use. • These precautions are shown for safe use of our products and for prevention of damage or injury to operators or others. Be sure to read each of them, since all of them are important for safety.
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MA-660A WARNING ! Do not put your hands between the electrodes When welding, keep your fingers and hands away from the electrodes. Do not touch any welded part or electrodes during welding and just after welding finished The welded part of a workpiece, electrodes and arm are very hot.
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MA-660A CAUTION ! Do not place a water container on the Equipment If water spills, insulation will deteriorate, and this may cause electric leak and fire. Keep combustible matter away from the Equipment Surface flash and expulsion can ignite combustible matter. If it is impossible to remove all combustible matter, cover them with non-combustible material.
MA-660A (2) Precautions for Handling Handle the Transformer with care so as not to make an impact such as drop on ■ Do not use this Equipment in the following places: ■ ・damp places (where humidity is higher than 90%), ・hot or cold places (where temperatures is above 40°C or below 5°C),...
MA-660A 2. Features The MA-660A is a program unit which is connected to our welding power supplies and used to set the operating condition, etc. of those products. The MA-660A can be connected to applicable products; it can be used by rewriting the contents of the memory.
Used to write the set or changed value and [ON/OFF] data in the Power Supply connected to the MA-660A. After any data is set or changed, be sure to press this ENTER key to write that data before moving the cursor.
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CAUTION When connecting the circuit cable, insert it with aligned with the key groove of the connector. The connector may be broken if inserted with force. MA-660A side (male) Circuit cable side (female) CAUTION No settings or changes may be made to any item from the receipt of the start signal through the end of the weld sequence and turning off the start signal.
MA-660A 5. Explanation of Operation Normally, the MA-660A can be used as a program unit of the connected product just after the power is turned on. For how to operate, see the Operation Manual attached to the connected welding power supply.
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When you want to rewrite the program in the memory with pressing the upper portion of the CURSOR key at power-on. Select YES for OVER WRITE and press the ENTER key to rewrite the contents of the memory. MA-660A PROGRAM CHECK CONNECT MEMORY ISB-300A...
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MA-660A Flowchart of Operation after Power is Turned on 5. Explanation of Operation...
MA-660A 6. Fault Code List In the event of a problem with the Power Supply, the MA-660A displays the fault code and message. In such cases, read this section carefully, then inspect the equipment and take the necessary countermeasures. If you have any questions, consult us or your distributor.
MA-660A 7. Specifications Power supply voltage 24 V DC (supplied from the welding power supply) TFT liquid crystal panel Display Ambient temperature: +5° – +40°C Maximum humidity: 90% max. Operation environment (Dew condensation not allowed) Maximum altitude: 1000 meters max.
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