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Initial situation and fault pattern in the CNC machine.
The Okuma drive unit MIV04-1-B3 with part number 1006-2214 was sent in by the customer with the report that unstable axis movements and recurring alarms occurred during operation. The unit was...
The unit Yaskawa CIMR-G5C4011 arrived with the complaint “motor jerking”. Initial testing immediately revealed abnormal behavior beyond simple parameter issues.
In forward direction, the motor ran smoother and reached a higher speed at the same...
Intermittent Alarm A.10 Without Reproducible Fault on External Test Benches
This Yaskawa SGDH-05AE servopack was received from the customer with the report that the axis stopped sporadically with alarm A.10. The issue was particularly critical beca...
Initial Situation and Background
The Yaskawa AC servo motor SGMG-20VSAAS was submitted to our workshop after a long period of sporadic machine stoppages. The motor was installed in a CNC machine and had been operating reliably for many years. Over ...
In this repair case, we received three Mitsubishi Servo Drive Units MR-J4-40B-RJ from the same customer, all showing the identical fault condition. All units reported the Main Circuit Error Alarm 24 immediately after power-up. What was striking was th...
Initial situation and fault description.
The Okuma Servo Drive MIV06DB-1-B1 with Okuma part number 1006-2265 was sent to us with the information that alarm A.L. 04 occurred only occasionally. According to the technician’s report, the drive had be...
Initial Situation and Customer Background.
The Mitsubishi HG-H104S-D48 AC servo motor arrived at our facility shortly before Christmas as an urgent express repair. The customer’s machine had failed unexpectedly at a very critical moment. A specia...
Initial Situation and Fault Description.
Both units, the Yaskawa CIMR-M5A20110-XXXB inverter and the Yaskawa CIMR-MR5N2011 converter, were delivered together from one machine. At the time of delivery, it was not clear to the machine operator which ...
The Yaskawa AC servo motor SGMP-15A312 was delivered to us following an acute overload alarm. The repair request was time critical, as the affected machine was essential for production.From the service history it was already known that the motor had b...
The spindle amplifier was sent to us by the customer after strong vibrations occurred at the spindle motor over an extended period. It was noticeable that the vibrations increased significantly with higher rotational speeds. Since such symptoms in pra...