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Servo motor repair · Allen-Bradley

Allen-Bradley servo motor repair

Star Automations repairs Allen-Bradley servo motors, including MP-Series, TL-Series and older Y and H series motors used with Kinetix and Ultra drives. 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 an Allen-Bradley dealer or service partner; the brand name describes the motor we repair. Repair warranty is 3 months to 1 year, stated on each quotation.

Allen-Bradley MPL servo motors in stock, refurbished and tested

Send the nameplateWhatsApp
Allen-Bradley servo motor nameplate
  • 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.

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.

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
WhatsApp the nameplateSend by email
01Families

Allen-Bradley motor families we inspect, repair and test

The catalogue number on the nameplate decides what can be done. MPL is the Kinetix MPL low-inertia series, MPM the Kinetix MPM medium-inertia series and VPL the Kinetix VP low-inertia series.

We repair Allen-Bradley MPL, MPM, VPL, TL-series and older 1326AB servo motors. Each motor is inspected, repaired, its feedback tested and aligned, and then given a final run test on our universal servo motor test system before it is returned with a test report.

For the MPL-B series in detail, see Allen-Bradley MPL-B servo motor repair and service, and how to read an Allen-Bradley servo part number.

  • MPL low-inertia motors
  • MPM medium-inertia motors
  • VPL low-inertia motors
  • TL-series motors
  • 1326AB motors
  • Feedback: resolvers, Hiperface and other absolute encoders, tested and aligned
02Evidence

Final run test after repair

An Allen-Bradley Kinetix MPL servo motor after repair, running on an Allen-Bradley Ultra3000 drive: drive enabled, speed and current feedback checked before the motor is released.

Every repaired motor gets a run test and a printed test report. See the real tester screens and run test.

An Allen-Bradley Kinetix MPL servo motor after repair, running on an Allen-Bradley Ultra3000 drive: drive enabled, speed and current feedback checked before the motor is released.
00Series

Servo motor series we repair

Allen-Bradley MPL

MPL-A and MPL-B. Servo motor repair and load test.

Allen-Bradley MPM

MPM-A and MPM-B. Servo motor repair and load test.

Allen-Bradley MPF

MPF-A and MPF-B. Servo motor repair and load test.

Allen-Bradley MPS

MPS-A and MPS-B. Servo motor repair and load test.

Allen-Bradley TLY-A

Servo motor repair and load test.

Allen-Bradley TLP-A

Servo motor repair and load test.

Allen-Bradley VPL

VPL-A and VPL-B. Servo motor repair and load test.

Allen-Bradley VPF

Servo motor repair and load test.

Allen-Bradley 1326AB

Servo motor repair and load test.

Allen-Bradley (Rockwell) servo motor troubleshooting: what to check first

Many Allen-Bradley servo faults show as a Kinetix or Ultra drive fault, but the cause sits in the motor or its feedback. These checks help you decide whether the motor needs repair.

Feedback or encoder fault

A feedback loss, wrong position or runaway on an MPL, MPM or VPL motor often points to the encoder or its cable. See servo encoder alarms.

Motor will not run on a new drive

Try the motor on a different drive and cable. If the fault follows the motor, send it for inspection. Test a servo motor without the drive.

Noise, heat or rough rotation

Bearing wear shows as noise or vibration. Do not keep running the motor, because the shaft and housing can be damaged.

Brake does not release

Check the brake supply first. A brake that still holds at the correct voltage needs repair.

Not sure? Send the nameplate and the drive fault on WhatsApp. For the repair-or-replace decision, read servo motor: repair or replace.

Allen-Bradley servo motor repair turnaround

Emergency: same day

For a stopped line. Send the nameplate first.

Urgent: 3 days

Once the fault is confirmed on inspection.

Standard: 7 days

Planned repair with the full run test and a printed report.

Time depends on the fault and parts. Also see Allen-Bradley servo motor repair in Bengaluru and servo drive repair.

01Failures

Common Allen-Bradley servo motor failures

Feedback faults

Hiperface and resolver feedback alarms from encoder failure or cable damage.

Bearing and seal wear

Noise and contamination on motors in washdown and packaging lines.

Winding insulation

Ground faults from moisture in the winding.

Brake faults

Holding brakes that slip or do not release.

02Test bench

What the test bench checks

Allen-Bradley motors are tested on our servo motor test system without a Kinetix 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 MP-Series and older frames where the encoder, bearings, seal or brake failed and the frame is sound, and where a new motor would mean a long wait.

Replacement suits motors with mechanical damage or repeated winding failures. We give you the findings and photos so the decision is yours.

04Next

Before you send it

05How 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.

  1. Send the nameplate

    WhatsApp a clear photo of the nameplate, the alarm code and what the machine was doing when it failed.

  2. We confirm repairability

    We tell you whether we can test and repair that model before anything is shipped.

  3. Courier or pickup

    Courier the motor to our Chennai bench, or ask us to arrange pickup where needed.

  4. Inspection and quote

    The motor is opened, inspected and photographed. You get the findings and a quote before work starts.

  5. Repair, test, dispatch

    Repaired, run-tested and load-tested, then dispatched with a printed test report.

Allen-Bradley 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.

Kinetix motors

MPL-A and MPL-B, MPM, MPF, MPS, MPAS, MPAR, MPAI

VPL and VPC

VPL, VPC, VPF series

TL series

TL, TLY, TLP series

Older

1326AB, 1326AS, and older N, Y, F and H 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. 1 · Nameplate photoSend it on WhatsApp or the form
  2. 2 · Repairable? QuoteUsually the same working day
  3. 3 · Courier or pickupThe unit reaches our bench
  4. 4 · Bench diagnosisInsulation, windings, brake, encoder
  5. 5 · RepairFailed parts, bearings, seals, brake
  6. 6 · Align and run-testEncoder aligned; no-load and load run
  7. 7 · Report and dispatchPrinted test report with the unit
  8. 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.

Start with step 1WhatsApp the nameplate
06Questions

Allen-Bradley servo motor questions

More on the FAQ page.

Do you repair Allen-Bradley servo motors?

Yes, including MP-Series, TL-Series and older Y and H series motors used with Kinetix and Ultra drives. Send the nameplate and we confirm before you courier.

Do you repair motors from washdown lines?

Yes. Water ingress damage to encoders, bearings and seals is a common repair. We replace seals and note the cause on the report.

What should I send for a quote on a Allen-Bradley 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 Allen-Bradley drive to test the motor?

No. Our servo motor test system runs Allen-Bradley 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.

Do you repair AB servo motors and Rockwell servo motors?

Yes. AB, Allen-Bradley and Rockwell servo motors all mean the same motors: MPL, MPM, MPF, MPS, VPL, VPF, TL and 1326AB. Send the nameplate and we confirm repairability before you courier.

How do I identify an Allen-Bradley MPL, MPM or VPL motor from its nameplate?

The catalogue number, such as MPL-B430P-MK74AA, encodes the series, frame, rated speed, feedback and brake. Our guide explains each position: Allen-Bradley servo part number decoder. Or send the nameplate photo and we read it for you.

Do you repair Kinetix and Ultra drives as well as the motors?

Yes. We repair Allen-Bradley Kinetix and Ultra servo drives at component level and test them with a motor under load. See Allen-Bradley servo drive repair.

My Kinetix drive shows a feedback fault. Is the fault in the motor or the drive?

Try the motor on a different drive and cable, or the drive with a known-good motor. If the fault follows the motor, send the motor for inspection; if it follows the drive, send the drive. See Kinetix S45 feedback fault.

Can you supply an Allen-Bradley servo motor, drive or module if repair is not possible?

We hold Allen-Bradley spares in stock and source others on request, as refurbished and tested, new surplus or sourced units. We are an independent supplier, not an authorised distributor. See Allen-Bradley spares in stock or obsolete spares.

Where do I send an Allen-Bradley servo motor from Hyderabad, Delhi or Bengaluru?

WhatsApp the nameplate photo and the fault first. We confirm repairability, then tell you where to courier it. Local support pages: Hyderabad, Delhi, Bengaluru.

Encoders and feedback on these motors

MPL, MPF, MPS and 1326AB motors use SICK Stegmann Hiperface encoders that hold the motor data; MPL-H, TL and Y series use incremental encoders; some MPL and 1326AB motors use resolvers. See Hiperface encoder repair, incremental encoders and resolver repair.

Example nameplates and feedback devices

Allen-Bradley servo motor nameplate
Allen-Bradley servo motor nameplate
Allen-Bradley Kinetix VPL servo motor nameplate
Allen-Bradley Kinetix VPL servo motor nameplate
Allen-Bradley Kinetix VPL servo motor nameplate
Allen-Bradley Kinetix VPL servo motor nameplate
05Why Star

One universal test bench for Allen-Bradley and 180+ other servo brands

Most repairers test a servo motor on the drive of its own brand, or not at all. Star Automations tests every Allen-Bradley servo motor on its Universal Servo Motor Repair Equipment (Mitchell TI-5000JX), India’s first universal servo motor test system. It reads and aligns the feedback device and runs the motor under load without the original drive, so the result is the same whatever the brand.

  • Encoder and feedback read, zero position set and alignment checked before dispatch
  • No-load and load run, with speed and current compared against the nameplate
  • One test report format for every brand, so mixed fleets are easy to compare
  • Motors from machines that mix Allen-Bradley with other makes can go in a single consignment

Related pages for Allen-Bradley:

07Allen-Bradley

Allen-Bradley repair beyond the motor: Kinetix and Ultra drives, PowerFlex, PLC and spares

Most Allen-Bradley (Rockwell) axis faults involve more than one part. Pick the page that matches what you have, or send the nameplate and the fault and we route it.

Kinetix and Ultra servo drive repair

Kinetix 350, 2000, 5500, 6000 and Ultra 3000 drives at component level, tested with a motor under load.

PowerFlex AC drive repair

PowerFlex AC drives, including PowerFlex 4 and 525, repaired at component level.

ControlLogix, SLC 500 and PanelView

Repair and refurbishment, plus migration and upgrade planning.

Kinetix 6000 (2094) spares

Axis modules and power rail parts, refurbished and tested or sourced on request.

1394 and 1336 drive spares

Discontinued 1394 GMC and Bulletin 1336 parts, sourced on request.

Allen-Bradley spares in stock

Part numbers we hold in India, with MPL motors on the MPL page.

Reading a nameplate or a fault: Allen-Bradley servo part number decoder, Kinetix S45 feedback fault, how to identify the right replacement for an obsolete part.

Star Automations is an independent multi-brand repair and supply company, not an Allen-Bradley or Rockwell Automation service centre or authorised distributor. Send the motor from anywhere in India: we support customers from our Puducherry, Chennai, Bengaluru, Hyderabad and Delhi offices. Local pages: Chennai, Bengaluru, Hyderabad, Delhi.

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.

Send the nameplateWhatsApp