Indramat Servo Amplifier Repair
Reported Fault
This Indramat DDS2.1-W150 is in the workshop this week with a F61 error which relates to an abnormality in the current drawn from the power stack.
These drives were massively advanced for their time when they came out and are still widely used today as axis drives in CNC machinery. They build on the basic performance of the TDM analogue drives adding in digital support for an endat encoder as well as communication control using plug in cards.
We dismantled the drive and found quite a few issues. Firstly the drive had been to another repairer who had changed the capacitors hoping this would fix the fault. The rework standard was shocking., with plated through hole damage and components bent over at an angle barely attached to the PCB.
We replaced the failed components in the current sensing circuitry that were at fault as well as tidying up all the poor previous work. Once rebuilt we will connect this to a TVM power supply and run it up with its MDD servo motor.
We don’t just fix faults at Martronic, we fully test everything ensure you have no surprises when your repair comes back to site.
