Encoder Repair & Alignment
Servo motor encoder and resolver repair with commutation alignment
- Free evaluation
- 24–72 hr typical
- 12-month warranty
- Tested on our jigs
Short answer
Does a new servo encoder need to be aligned?
Yes. On most servo motors the encoder tells the drive where the rotor's magnetic poles are, so a new or repaired encoder must be aligned to the motor's commutation offset. Without alignment the axis can run rough, lose torque, jump or trip on overcurrent. We repair or replace the encoder, align it, then run the motor under drive control before it ships back.
What we repair
What we repair on an encoder
Absolute & incremental encoders
Optical and magnetic encoders that give position errors, noise or no signal.
Resolvers
Resolver windings and connections behind feedback and position faults.
Commutation alignment
Encoder aligned to the motor's commutation offset after replacement or repair.
Serial & digital interfaces
EnDat, DRIVE-CLiQ and other serial encoder communication faults.
Connectors & cables
Feedback connectors and internal leads that cause intermittent alarms.
Contamination damage
Encoders damaged by oil, coolant or dust that entered the motor.
Diagnosis guide
Common encoder faults we fix
Encoder communication error on the drive
Failed encoder electronics, damaged cable or a serial interface fault
Axis runs rough or jumps after an encoder change
Encoder not aligned to the commutation offset
Overcurrent with a good drive and motor windings
Wrong commutation angle from a misaligned encoder
Intermittent position or following errors
Contamination, failing optics or a loose connection
Quality
How we test every repaired encoder
Parts replaced is not the same as fixed. Every unit is proven under power before it leaves our Mississauga, Ontario repair centre.
- 01
Encoder signals checked before we quote
- 02
Aligned to the motor's commutation offset
- 03
Run under drive control on our test jigs
- 04
Test report ships with every unit
All makes & models
We repair every encoder brand
We repair encoders from any manufacturer, current or obsolete. These are some of the brands and series we see most often. If yours isn't listed, we still repair it.
Heidenhain
- EQN
- ECN
- ERN
Siemens
- DRIVE-CLiQ motor encoders
- 1FK7 / 1FT7 encoders
Fanuc
- αi pulsecoders
- βi pulsecoders
Any brand. Any model.
Tamagawa · SICK Stegmann · Indramat motor feedback · Yaskawa · 1,000+ brands
Don't see yours? Ask a technician
Brand names are trademarks of their owners and are used only to identify the equipment we repair.
Your options
Repair, exchange or replace?
Repair your unit
Your original unit, repaired at component level and tested. Usually a fraction of the price of new.
Request a RepairExchange unit
A tested replacement at a lower price. Ship us your unit and we ship the replacement once it arrives.
Ask About ExchangeReplacement part
New, surplus or refurbished, sourced from 1,000+ brands, including discontinued parts.
Request a QuoteFAQ
Encoder repair questions
Can you align an encoder without the original machine?
Yes. We align the encoder to the motor's commutation offset on our own test jigs, then run the motor under drive control to confirm it.
Do you repair resolvers?
Yes. We repair resolvers and resolver connections as well as optical and magnetic encoders.
How long does encoder repair take?
Typical turnaround is 24–72 hours once you approve the quote.
What warranty comes with an encoder repair?
Every encoder repair comes with a 12-month warranty.
Encoder down? Let's get it running again.
Free evaluationNo work without your approval12-month warranty