Initial situation and fault description.
The FANUC A06B-6079-H206 Servo Amplifier Module was delivered to us with a clear and critical fault condition. Immediately after power-up, the 7-segment display showed a permanent alarm “9”. The alarm co...
Initial situation and failure description.
The Mitsubishi Spindle Drive Unit MDS-D-SP-40 was sent to us with no function. According to the customer, the machine suddenly shut down during an active machining process. There was no long-term warning, ...
The 4015P-B or 32-4015P-B HAAS Servo Amplifier arrived with the clear fault description “no function”. In practice, this usually means an immediate production stop for the operator: the axis cannot be enabled, the machine remains in alarm state, o...
Initial Situation and Background.
The two Yaskawa AC servo motors SGMAH-04AAA21 and SGMAH-04AAA61D-OY equipped with the TRD-FWAG13 encoder were deliberately ordered from us as fully overhauled exchange motors by a machine manufacturer. Not because ...
Initial situation and fault symptoms.
The Mitsubishi MDS-C1-V2-0303 Servo Drive Unit was sent to us together with a Mitsubishi HA33NC-TS AC Servo Motor. The customer was unsure whether the fault originated from the drive or from the motor and there...
Initial situation and fault description.
The Mitsubishi MDS-C1-V2-1005 Servo Drive Unit was sent to us with a fault that was initially difficult to pinpoint. According to the customer, the alarm Al. 32 (Power Module Overcurrent) appeared only very ...
Workshop report from the technician’s perspective.
Initial situation and fault description.
The Mitsubishi MDS-DH-V2-4020 was delivered to our workshop with a clear and critical symptom: the display remained completely dark. No initialization,...
The Yaskawa SGDB-20AM AC Servopack arrived with a very clear fault description. According to the customer, the unit showed alarm “C” directly on the display immediately after power-on. This behavior occurred reproducibly, regardless of whether the...
Initial situation and fault description.
A machine manufacturer sent us four identical Omron R7M-A20030-BS1-D AC servo motors for overhaul at the same time. According to the initial description, all motors showed the same behavior: they were no lon...
Initial Condition on Arrival.
The Yaskawa AC Servo Motor SGMGV-30ADA61 was sent to us with a clearly reproducible encoder fault. According to the customer, the error already occurred when the machine was powered on. The axis could no longer be refe...