Initial Situation and Fault Condition at Arrival.
The Yaskawa AC Servo Motor SGMDH-06A2A-YR13 was sent to us by an automotive company. The motor was installed in a Yaskawa industrial robot and was responsible for an axis function requiring high dyn...
Initial Situation and Fault Description.
The Yaskawa Servopack CACR-5R5-PD1VDS01 was delivered with an unusual fault description. When the mains supply was switched off via R S T, the internal status indicator did not turn off as expected. When the...
The Yaskawa Servopack SGDV-120A01AY101AA was received with alarm codes A.710 and A.910. According to the customer, the affected axis exhibited highly unstable behavior. The motor only started jerkily, responded with delay to motion commands, and stopp...
Initial situation and fault description.
The Yaskawa Servopack SGDM-04ADY37 Ver. 10107-0 was sent in by the customer with the fault description “Alarm 03”. In addition, it was reported that a short circuit had previously occurred in the power s...
Initial situation and fault description.
The Mitsubishi Servo Drive Unit MDS-C1-V1-35 was sent in by the customer due to abnormal motor noise during operation. In addition, the CNC control reported Alarm 32, which indicates an overcurrent condition...
Initial situation and fault description.
The Yaskawa converter CIMR-MRXN2022 Spec 20225A was sent in by the customer with the fault description “no function, no display, no startup”. According to the customer, the failure occurred suddenly. The...
The repair case described here concerns a Yaskawa SGDH-20EEY338 Servopack that was used in a Brother CNC machining center as the drive for the Y axis.The unit was sent in with the fault description that the Y axis does not run smoothly, behaves irregu...
Initial Situation and Reported Fault.
The Yaskawa AC Servo Motor SGMPH-02A1A-YR31 was sent in with the fault description that the integrated holding brake opens correctly when energized, but no longer closes reliably during operation. This behavior...
A practical case involving misdiagnosis, prior repairs and system-level damage.
Initial condition on arrival
The Mitsubishi Power Supply Unit MDS-C1-CV-75 was received with Alarm F active.The unit was able to power up, but the startup sequen...
The Mitsubishi MDS-B-V1-35 AC Servo Drive Unit was sent to us due to unstable machine behavior. The customer reported strong vibrations starting at approximately 700 revolutions per minute, which increased further with rising speed. After a short oper...