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Recent content by 1hagar

  1. 1hagar

    plc high speed counter

    Thanks for helpful info.we drive a DC generator so ac signal will work.we also use a aux. Generator to charge the batteries and Excitor for generator. The power for safety circuit comes from batteries and a separate supply driving a relay which comes directly from the aux.generator. take it this...
  2. 1hagar

    plc high speed counter

    thread791-284459 will be starting up this project again and will supply more info soon.just to get the go ahead
  3. 1hagar

    km412rc plc

    hi there I need to switch a plc input by means of a computer say input 1. What hardware do I need to do this? We will be using a Excel program which ran on windows 98 but we want to use windows 7 and a KM easy 412 plc. We are trying to do booking of squash lights on the computer and physical...
  4. 1hagar

    switching a plc with a computer

    Hi, I need to switch a plc input by means of a computer. What hardware do I need to do this? We will be using a Exel program a KM easy 412 plc. We are trying to do booking of squash lights on the computer and physical switching of the lights is done by the plc thanks
  5. 1hagar

    Thermal relay calculation for single phase motor

    how do you do the connections to this motor when running it on 230 volt? Is there any difference in speed and heat generated? Just had a problem the other day when the neutral was connected as a phase so motor ran with 2 phases and a neutral.(incorrect connection on supply side)
  6. 1hagar

    moeller easy plc and proxy freq connection

    Thanks guys very helpfull. sorry did not tell about the teeth.I work out it was just over 3 hz per rev.full speed is +- 1360rpm and idle 600. Not at work now but next week will do tests.I want to use a stand alone plc so I will go for the 800 I must just check if it is a 24 dc unit as Loco has a...
  7. 1hagar

    moeller easy plc and proxy freq connection

    I need to connect a proxy reading freq. between 2000 and 5000hz which is on a diesel loco engine fly wheel. all this does is it converted to rpm but I need to shut dowm the engine when it over revs.I have a moeller 512 rc dc plc.(12vdc unit) will i need to convert the proxy signal to an 4-20 ma...

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