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.
Servo motor repair · B&R
B&R servo motor repair
Star Automations repairs B&R servo motors, including 8LS, 8LV and 8JS series motors. The motor is inspected, the failed parts are repaired or replaced, the encoder is aligned where needed, and the motor is proved on our servo motor test system with a no-load run and a load run before it leaves our Chennai bench. We are not a B&R dealer or service partner; the brand name describes the motor we repair.
- 25+years of servo repair, since 2000
- 3,000+customers across India
- 100+servo brands covered by our universal servo motor test equipment
- 5sites: Puducherry, Chennai, Bengaluru, Hyderabad, Delhi
- Same dayemergency repair option*
*Where the fault and parts allow. Every repaired unit returns with a printed test report.
Repair turnaround you can plan around
Send a photo of the nameplate first. We confirm whether the motor is repairable, and the quote, the same working day.
Urgent: 3 working days
Repair, encoder alignment and test, counted from the day the motor reaches the bench and the quote is approved.
Standard: 7 working days
Full repair, encoder alignment, run test under load and a printed test report.
- Free repairability check from a nameplate photo
- Printed test report with every motor
- Written warranty, terms stated on every quotation
- Pickup can be arranged; parts that must be imported are quoted with their own timeline
01Failures
Common B&R servo motor failures
EnDat and encoder faults
Encoder communication alarms on motors with EnDat or Hiperface feedback.
Bearing wear
Noise on compact motors running fast cycles on packaging machines.
Brake faults
Brakes that drag or slip on vertical and indexing axes.
Connector and cable damage
Hybrid cable and connector damage from cable-chain flexing.
02Test bench
What the test bench checks
B&R motors are run on our servo motor test system without an ACOPOS drive, then loaded on the rig.
- Insulation resistance and hi-pot
- Winding resistance and balance
- Encoder or resolver feedback and commutation offset
- Brake release and holding, where fitted
- No-load run, then load run; speed and current against the nameplate
- Vibration and noise at rated speed
03Repair or replace
Repair or replace
Repair suits 8LS and 8JS motors with feedback, bearing, brake or connector faults, which is most of what we see on packaging machines.
Replacement suits motors with shaft or housing damage. If a machine builder supports the line, we can work to their test methods and reporting.
04Next
Before you send it
How the load test works
The test sequence and a sample report.
Load testServo motor repair Chennai
Support and pickup from our Chennai office.
ChennaiFree servo health check
Describe the symptom and get a likely fault class.
Health check05How to send
How to send the motor
You can send a servo motor from anywhere in India. Talk to us before you courier, so the unit is expected and logged on arrival.
Send the nameplate
WhatsApp a clear photo of the nameplate, the alarm code and what the machine was doing when it failed.
We confirm repairability
We tell you whether we can test and repair that model before anything is shipped.
Courier or pickup
Courier the motor to our Chennai bench, or ask us to arrange pickup where needed.
Inspection and quote
The motor is opened, inspected and photographed. You get the findings and a quote before work starts.
Repair, test, dispatch
Repaired, run-tested and load-tested, then dispatched with a printed test report.
B&R servo motor series and models we repair
We repair all frame sizes and ratings in these series, including older and discontinued versions. The list is a guide, not a limit: send us the nameplate. See also AC servo motor repair and all servo motor brands.
8LS and 8LV
8LSA, 8LSN, 8LSC, 8LVA series
8JS
8JSA series
Older
8MSA series
→How it works
From nameplate photo to a tested motor in 7 steps
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.
- 1 · Nameplate photoSend it on WhatsApp or the form
- 2 · Repairable? QuoteUsually the same working day
- 3 · Courier or pickupThe unit reaches our bench
- 4 · Bench diagnosisInsulation, windings, brake, encoder
- 5 · RepairFailed parts, bearings, seals, brake
- 6 · Align and run-testEncoder aligned; no-load and load run
- 7 · Report and dispatchPrinted test report with the unit
- Line down?Servo Swap ships a tested unit first. How Servo Swap works
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.
Do you repair B&R servo motors?
Yes, including 8LS, 8LV and 8JS series motors. Send the nameplate and we confirm before you courier.
Do you repair B&R motors from packaging machines?
Yes. Packaging machines are where most B&R motors we repair come from.
What should I send for a quote on a B&R motor?
A photo of the nameplate, the alarm code and a note on the symptom. We confirm repairability before you courier.
Do you need a B&R drive to test the motor?
No. Our servo motor test system runs B&R motors without the original drive, then a load rig applies load.
Is there a warranty?
A written warranty is given after a successful repair. Warranty terms are stated on each quotation.
Encoders and feedback on these motors
B&R 8LS and 8MS motors use Heidenhain EnDat encoders that store the motor data. See Heidenhain encoder repair and memory programming.
Send the nameplate. We confirm repairability before you courier.
WhatsApp a nameplate photo and the alarm code to +91 97866 22233, or email info@starautomations.com.