Emergency: same day
For a line-down motor, where the fault and parts allow. WhatsApp us before you send it so the bench is kept free.
Since 2000 · 3,000+ customers
Siemens · Servo drive repair · India
We repair Siemens servo drives and motor modules at component level: power stage, DC link, feedback input, control and I/O faults. Every repaired drive is tested with a servo motor under load before dispatch and returned with a printed test report. Send the drive label and the fault number, such as F30001, to get a quote.

*Where the fault and parts allow. Every repaired unit returns with a printed test report.
Send a photo of the nameplate first. We confirm whether the motor is repairable, and the quote, the same working day.
For a line-down motor, where the fault and parts allow. WhatsApp us before you send it so the bench is kept free.
Repair, encoder alignment and test, counted from the day the motor reaches the bench and the quote is approved.
Full repair, encoder alignment, run test under load and a printed test report.
Send the full order number (6SL3...) from the label. If your model is not listed, ask us on WhatsApp.
A drive alarm tells you where to look, not always what failed. Overcurrent can be the power stage, the gate drive, the motor or the cable.
The faults below are common SINAMICS S120 power unit faults. Numbers differ on other Siemens series.
Can be the power stage, the motor or the cable. Disconnect the motor and see if the fault stays.
Overvoltage often means braking or supply problems; undervoltage points to supply or precharge faults.
Check the fan, the airflow and the enclosure temperature.
Check load, motor cable and motor insulation.
Alarm guides: Servo encoder alarms · Test a servo motor without the drive · Repair or replace?
After component-level repair, the drive is powered up on a test rig, the power stage and feedback circuits are checked, and the drive is run with a servo motor under load. Your drive comes back with its own settings and serial history, and a printed test report.
If the motor is the real cause, the drive repair alone will not hold. When the alarm points to feedback or overcurrent, send the motor too: see Siemens servo motor repair and encoder repair. We are an independent multi-brand repair company, not an OEM service centre.
For a stopped line. Send the label photo and alarm code first.
Once the fault is confirmed on inspection.
Planned repair with the full test and a printed report.
Time depends on the fault and on parts. What affects repair cost.
You can send a drive from anywhere in India. Talk to us before you courier, so the unit is expected and logged on arrival.
WhatsApp a clear photo of the drive label, the alarm or fault code and what the machine was doing when it failed.
We tell you whether we can test and repair that model before anything is shipped.
Courier the drive, with the motor if the alarm points to feedback or overcurrent, to our Chennai or Puducherry bench.
The drive is opened and inspected. You get the findings and a quote before work starts.
Repaired at component level, tested with a servo motor under load, then dispatched with a printed test report.
One route for servo motors, encoders and drives. You see the price before any work starts, and the report before the unit leaves our bench.
EmergencySame day*
Urgent3 working days
Standard7 working days
*Where the fault and parts allow. Turnaround counts from when the unit reaches our bench and the quote is approved.
More on the FAQ page.
Yes. We repair Siemens servo drives and amplifiers at component level, test them with a servo motor under load and return them with a printed test report. Send the label photo and alarm code on WhatsApp and we confirm repairability before you courier.
No. Star Automations is an independent multi-brand repair company, not an OEM service centre. The brand name only describes the equipment we repair.
Yes. When the alarm points to feedback or overcurrent we test the drive with the motor, so a motor fault does not bring the alarm back.
The drive label photo, the alarm code, the motor nameplate and what the machine was doing at the time of failure.
WhatsApp a photo to +91 97866 22233, or email info@starautomations.com.