• 38422 Webb Dr Westland , MI 48185
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Repair Information
Allen-Bradley Servo Drive Repair | NC Servo Technology
NC Servo Technology - Westland, Michigan 734-326-6666
NC Servo Technology Independent industrial repair facility

Allen-Bradley Repair

Allen-Bradley Servo Drive Repair

Component-level repair for Kinetix, PowerFlex, and 1336 servo drives, plus the control boards, power supplies, and amplifier assemblies that fail alongside them. NC Servo has been bringing Allen-Bradley hardware back into service since 1975.

Get a Repair Quote Servo Drive Services
Component-level repair Damaged parts replaced and verified, not blind board swaps.
13 in-house test stands Drives are loaded and run on the bench before they ship back.
1-year warranty Included on parts and workmanship as standard.

Service Scope

Allen-Bradley drives and controls, repaired in-house

Customers send their Allen-Bradley drives, controls, and amplifier assemblies in to NC Servo when a unit needs more than a board swap. The bench opens each one, looks at what failed, and repairs at the component level by technicians who have spent years on this kind of hardware.

Drives and controls

Kinetix, PowerFlex, and 1336 drives, along with their control boards, power supplies, and amplifier assemblies. Each one is repaired down to the failed component instead of replaced wholesale.

Honest evaluations

Each unit is opened and looked at on its actual condition. Turnaround depends on the family, the failure, and what spare parts are on hand at the time the unit comes in.

Rebuilt and exchange units

When a repair is not the right call, ask if there is a previously rebuilt unit on the shelf. Give us a call with your part number and we can check. Sometimes yes, sometimes not.

Supported Families

Allen-Bradley models and hardware families

These are some of the Allen-Bradley families NC Servo has repaired over the years. If your unit is not on this list, send it in anyway. The shop takes whatever it can fix.

Kinetix Kinetix 300, 350, 5500, 5700, 6000, and 6500 servo drive units.
PowerFlex PowerFlex 4, 40, 70, 700, 753, and 755 AC drive families.
1336 1336, 1336 PLUS, and 1336 PLUS II. Older drives still in service.
Controls and amplifiers Control boards, power supplies, and amplifier assemblies from the same drive lines.

Failure Symptoms

Failure modes we see most often

Fault codes help if you have them, but plenty of units come in with nothing on the display. Either way, the techs check the unit on the bench and replace what needs replacing. Below are the kinds of failures that turn up on Allen-Bradley drives.

Power and startup No power, intermittent startup, blown fuses, low-voltage supply faults, or visible board damage.
Drive faults Overcurrent faults, DC bus faults, overvoltage faults, IGBT faults, or repeated trip conditions.
Feedback and control Encoder feedback faults, control signal problems, communication faults, or unexplained axis behavior.
Physical condition Heat damage, contamination, failed fans, damaged connectors, corrosion, or prior repair evidence.

Repair Process

From the first call to the return shipment

Most Allen-Bradley repairs follow the same four steps. Lead time varies job to job, since parts often have to come off a donor board, so we give a current estimate after the unit has been looked at.

Get in touch

Call or email with whatever info you have on the unit and the failure. We pick up from there and walk through the next step with you.

Bench evaluation

The unit is opened, inspected, and powered up on a test stand to see what failed and what it will take to bring it back.

Quote and approval

Once the unit has been looked at, we call back with what the repair will cost. Nothing is started without your okay.

Repair, test, return

Failed components are replaced, the drive is run on the bench, and the unit ships back ready to install.

Electronics test bench for servo drives and electronic controls

Testing

Bench-tested before the unit ships back

Allen-Bradley repairs are verified on NC Servo's electronics test stands, wired for the major drive families so units are loaded and run, not simply powered up and packed.

  • Power supply rails and gate-driver outputs checked on the bench.
  • Replaced components verified before the unit goes back in the box.
  • Test sequences picked by the tech to suit the drive and the failure.
  • Repair backed by a 1-year warranty on parts and workmanship.

Inventory and Exchange

Rebuilt and exchange Allen-Bradley units

Sometimes a previously rebuilt Kinetix, PowerFlex, or 1336 unit is sitting on a shelf from a past job. Stock is hit or miss (it is not a warehouse), but when a swap makes more sense than a fresh repair, give us a call with your specific part number and we can check what is around.

  • Stock varies, so it is best to call about a specific part number.
  • Any rebuilt unit carries the same 1-year warranty as a repair.
  • Trade-in credit toward the rebuilt unit when your failed drive comes back to the shop.
  • If you do not have a failed unit to trade in, sometimes the rebuilt one can be purchased outright instead.
Organized NC Servo inventory shelves with industrial components
Allen-Bradley 1336PLUS II industrial control panel

What's Included

What NC Servo handles, and what stays with your team

NC Servo handles the hardware side: the boards, components, and assemblies inside the drive. Software, parameters, and PLC work stay with your team or your integrator. That side of the system is theirs to handle on the OEM's own tools.

  • Component-level board repair, capacitor replacement, and IGBT work.
  • PLC programs, drive parameters, and configuration remain on your side.
  • Reload your saved parameter file once the repaired drive is reinstalled.
  • Putting it back on the machine and the final checkout are handled by your team.

More on Allen-Bradley Repair

Related pages and brands

Allen-Bradley drives often share a panel or system with drives from related brands. The pages below cover related coverage, peer drive lines, and the broader drive hub.

Servo drive repair hub

The full range of servo drive and amplifier repair NC Servo handles, across the brands that come through the shop.

Fanuc drives

CNC servo amplifier brand the shop services. Useful when Allen-Bradley sits alongside Fanuc CNC hardware on the same machine.

ABB drives

Major industrial drive brand the shop services. Often paired with Allen-Bradley on the same control panel.

Repair vs replace

When component-level repair makes sense versus buying new or rebuilt.

Have an Allen-Bradley drive down?

Get in touch with whatever info you have on the unit. We can walk through what makes sense for what came in: a repair, a rebuilt unit if one is on hand, or another option.

Get in Touch

FAQ

Allen-Bradley repair questions

The questions that come up most often before a unit ships in. Anything not covered here, give us a call at 734-326-6666.

Is NC Servo affiliated with Rockwell Automation?

No. NC Servo Technology is an independent, third-party repair facility and is not affiliated with, authorized by, or endorsed by Rockwell Automation. All Allen-Bradley trademarks are the property of their respective owners.

Which Allen-Bradley units do you cover?

Kinetix (300, 350, 5500, 5700, 6000, 6500), PowerFlex AC drives (4 through 755), the full 1336 family, and the control boards, power supplies, and amplifier assemblies that come from the same drive lines. Send a part number to confirm coverage on anything not listed.

Can NC Servo recover programs or drive parameters?

No. That side stays with your team or integrator. NC Servo handles the hardware repair only. Once the repaired drive is back on the line, your saved parameter file gets reloaded the way it normally would after a swap.

How long does an Allen-Bradley repair take?

It varies. NC Servo is a small independent shop, and lead time depends on the unit, what is wrong with it, and whether parts have to come off a donor board. We give a current estimate over the phone once the specific unit has been looked at.

What happens if the drive is beyond economic repair?

If a repair does not make sense, we walk through what does: sometimes a rebuilt unit on the shelf, sometimes a swap-with-discount toward a rebuilt unit when we have the match.

What is the warranty on an Allen-Bradley repair?

One year on parts and workmanship. The same warranty applies whether the unit was repaired, rebuilt, or supplied as an exchange. Standard exclusions apply for power surges, software-driven faults, and environmental damage.

NC Servo Technology is an independent, third-party repair facility and is not affiliated with, authorized by, or endorsed by Rockwell Automation, Allen-Bradley, or any related entities. Allen-Bradley, Rockwell Automation, Kinetix, PowerFlex, 1336, and other brand names, model numbers, and trademarks referenced on this page are the property of their respective owners and are used solely to identify equipment serviced by NC Servo Technology. Final installation, parameter loading, system validation, and operational compliance remain the responsibility of the customer, OEM, or qualified integrator.

ALLEN BRADLEY Products We Service

115 models available

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