Maintenance case of injection molding machine Dajin servo driver motor pump

Model: Daikin SUT00D12818

Fault cause: E16 alarm

Fault analysis: The customer gave an E16 alarm during normal use, according to the working principle of Daikin servo. The servo oil pump is driven by servo motor, and the servo oil pump to be tested is driven by AC servo motor. Servo motor belongs to the category of control motor. Its main function is to transmit and convert signals. For example, servo motor converts voltage signals into torque and speed. The main requirements for control motor are sensitive and accurate action, reliable operation, low power consumption, etc. According to the Dakin servo instructions, the cause of the fault code is overvoltage alarm, the static measurement module and the detection circuit components are normal, and the voltage detection circuit is found to be damaged by power-on detection. After replacement, the fault is still, and the power supply voltage is normal after power-on detection. According to the following circuit diagram A7840, no voltage change was detected in the TL084 amplification IC, and the fault was removed after replacement.

Jiahongwei can repair Japan Daikin servo driver without display, phase loss, overcurrent, overvoltage, undervoltage, overheating, overload, grounding, parameter error, display without output, module damage, and fault code.

Jiahongwei repairs DAIKIN DAIKIN servo motor/servo motor/servo pump, DAIKIN DAIKIN servo motor pump repair faults: gear wear, idling or lack of force, magnet explosion, magnet falling off, stuck rotation, encoder wear, code plate/glass plate wear and tear, motor heating and scalding, motor water ingress, motor abnormal operation, high speed running noise, high noise, brake failure, brake pad wear, low speed normal high speed deviation High speed normal low speed deviation, start alarm, start trip, overload, overvoltage, overcurrent, failure to start, weak start, running jitter, loss of excitation, running, running deviation, output imbalance, encoder alarm, encoder damage, inaccurate position, alarm upon power-on, trip upon power-on, DAIKIN Dajin drive server alarm code and other faults can be solved by Jiahongwei.

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