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Recent content by edgeshots

  1. E

    Internal Error: dat.c

    Hello Folks, Anybody had any idea/experience about this kind of error, "Internal Error: dat.c " ? :?: Commonly internal error of some equipments refer to any registry fault, you think this is related to the SRAM IC? :-( Thanks,
  2. E

    How to calibrate a Powerware Prestige UPS

    Hello Guys, Anyone knows how to perform calibration to my powerware prestige UPS? The last time got a battery problem so I replaced with a new batteries, but after installing new batts, the unit still beeping and the battery fault LED is on. Thanks
  3. E

    SCR Driver Voltage reading

    Hello guys, anyone had the experienced working with HT SCR Power Cotroller 480VAC used to drive lamp in semicon industry? i would like to ask what would be the measured voltage between T1&L1 when its in the max and min power out? thanks,
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    How to control the firing angle of the SCR

    thanks a lot, will try doing so..o_O
  5. E

    How to control the firing angle of the SCR

    Hello Guys, Can you help to me on how to determine the firing angle of the SCR and how it is being controlled? Can please give a sample circuit to understand it thoroughly as well. Great Thanks,
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    Neslab MX500 Chiller Unit Error Issue

    Hello Guys, Need help, anybody from the group had worked before on a NESLAB MX500 chiller? As currently we are having a Uer (Unit error) displayed in the LCD. Based on the manual, needs to refer on the LED for fault identification, however no LED was on except for the Power On LED. Now were...
  7. E

    24Vac Contactor latching problem.

    there was a motor overload relay in between the contactor and the transformer i'd made a voltage check on two locations at the same time 1) between A & B, and 2) between D & C. the moment i disengage the contactor connection at 1) and 2) both measured 24vac, the moment i engage the contactor...
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    24Vac Contactor latching problem.

    hello charu, actually the circuit was previously working, now i tried checking the voltage across the transformer (the one that feeds voltage to the contactor) and the contactor itself. at the moment i disengage the contactor supply voltage connection, its reading is 24vac and same goes to the...
  9. E

    24Vac Contactor latching problem.

    Hello folks, got the same issue. Most likely what is the cause of this voltage drop?
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