Hello everyone, I am new to this forum and I am currently facing a small issue with a Toshiba Die Casting machine that is equipped with a Toscast system. Initially, the machine was showing a "Malfunction Alarm" on the PC. I have replaced the 3 power supplies - one for the main processor, one for I/O, and one for the PC (which includes VGA, analog I/O, and Keypad). However, the alarm persists. I have tested each I/O card by replacing them with new spare cards one by one, but the alarm continues to appear. When I tested the processor on a different machine, no alarm was triggered. However, when I tried using the processor from the other machine on the problematic unit, the alarm reappeared. My latest test involved installing a spare motherboard with all boards attached. This successfully removed the alarm, but now I am unable to see any input readings on the VGA screen and the hydraulic pump is not turning on. Despite this, I do have inputs in the PLC system.
New member, jos6s238, seeks assistance with a Toshiba Die Casting machine equipped with a Toscast system. Despite replacing power supplies and testing various components, the "Malfunction alarm" persists. An attempt to install a spare motherboard resolves the alarm, but issues with input readings and the hydraulic pump persist. Assistance requested with identifying the problem, along with a request for a picture of the alarm for further assistance. Can you provide a picture for troubleshooting purposes?
It sounds like you’ve done a lot of thorough troubleshooting already! Since the alarm cleared with the spare motherboard but you're not getting input readings on the VGA, it might be worth double-checking the connections and cables between the motherboard and the VGA. Sometimes, even a slightly loose connector can cause issues like this. Also, since the hydraulic pump isn't turning on, ensure that all necessary power supplies are not only functioning but also correctly seated; a faulty connection might be affecting the control signals. Lastly, it may be helpful to consult any specific documentation or fault codes for the Toscast system, as there could be a known procedure for this type of situation. Good luck!
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Answer: Answer: The issue may be related to the motherboard or specific boards attached, as indicated by the successful removal of the alarm after installing a spare motherboard. Further troubleshooting may be required to identify the exact faulty component causing the alarm.
Answer: Answer: This issue could be due to a misconfiguration or compatibility issue with the spare motherboard or attached boards. It is recommended to check the connections, settings, and compatibility of the components to ensure proper functionality.
Answer: Answer: To troubleshoot the alarm, you can systematically test components such as power supplies, I/O cards, processor, and motherboard by replacing them with known good spares. By isolating and testing each component, you can pinpoint the source of the issue causing the alarm.
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