Search the Community

Showing results for tags 'alpha 2'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Found 2 results

  1. Hi,   I have supplied a AL2-24MR-D PLC for a customer to control a swimming pool lid, they're still setting it up at the moment and it generally works, they are adjusting the set points of inputs to get a smooth operation, however, after powering down half way through a cycle, they are powering up and the PLC is remembering one of the outputs, they are several hundred miles away so it is difficult to visit and investigate myself, but they say they have killed the 230V power supply going to there control panel, which has the 24V power supply inside, left it for some time and powered back up but it has remembered one of the outputs.   This output is on a set-reset which is set by a counter, following a power down we want to return to the start of the program, all counters at 0... etc, I'm sure this was happening when I tested it but from the reports from site its not happening now.   Any help on how to reset the controller would be appreciated.
  2. Sorry first up for what may seem like a simple post / question, however I am pulling my hair out with reading the programming manual and have had no help from Mitsubishi's PLC technical support team.   I have a Mitsubishi Alpha 2 (AL2-10MR-A) that I am using to count the starts of a jacking pump via input one. The intention is to have output one operate when the jacking pump start count reaches 5 within a 24 hour period. When the 24 hour period has expired, the count will reset to zero. The count will also reset to zero when a manual keypad key is pressed. I have been able to figure out the counting and reset via the keypad no bother, however, including the 24 hour clock reset is proving difficult. Has anyone had any experience with adding the 24 clock function at all, and can offer advice or examples? This is being programmed directly via the keypad.   TIA