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Master is how to deal with CNC machining centers abnormal current alarm?

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Foxron Precision Metal Parts Co., Ltd.
Zhuanyao Industrial Zone, Wentang, East District Dongguan, Guangdong
Postal / Zip Code: 523121
Phone: 86-769-83062140
Fax: 86-769-85634781
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Master is how to deal with CNC machining centers abnormal current alarm?

    Master is how to deal with the abnormal current CNC machining center alarm (HCAL red light), experience and methods is the following
    Servo unit of 185 v ac after rectifying into dc 300 v, dc side one dc current detecting resistor, if there is a short circuit, the produce the alarm immediately.
    If it is has been, can use CNC machining center multimeter measurement module is short circuit, main circuit transistor to replace the transistor module, if not short circuit, is interchangeable with other axis control board, if the transfer with the control panel, the repair panel.
    If it is a high speed CNC machining center alarm and normal could be control panel or there is something wrong with the motor at low speed, it also can be recognized by exchanging servo unit.
    Observe whether has alarm or occasionally, if is always alarm is unit or panel fault, otherwise may be motor.
    CNC machining center, high voltage alarm (HVAL red light)
    Check whether the three-phase 185 v input voltage is normal.
    Check the CN2 + 1, 2, 3, communication, to 18 v is normal.
    Exchange of CNC machining center control circuit board, if malfunction with the control panel, is a circuit board failure.
    Low voltage alarm?(LVAL red light)
    The main loop of the servo control board to detect or control circuit voltage, or detection circuit malfunction.
    Check whether the CNC machining center three-phase 185 v input voltage is too low.
    Check the CN2 + 1, 2, 3, communication, to 18 v is normal.
    Check the main circuit of transistor, diode, capacitor and so on whether there are abnormal.
    Exchange of machining center control circuit board, if malfunction with the control panel, is a circuit board failure.
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