Seidel 60WKS Eurocard
60WKS-CE240/6PB and 60WKS-M240/6 Eurocard-format servo drives. Component-level PCB work, capacitor replacement, and IGBT power-stage rebuild.
NC Servo Technology - Westland, Michigan
734-326-6666
Independent Repair Shop. Not Kollmorgen.
Third-Party Repair of Kollmorgen Seidel Servo Drives
Independent third-party repair of Kollmorgen hardware: Seidel 60WKS Eurocard servo drives, current AKD-series servo drives, Kollmorgen amplifiers, and motion controllers. The Seidel name still shows up on hardware that came over when Seidel joined the Kollmorgen line. Backed by a 19,000+ unit in-house inventory we pull aftermarket and donor parts from. NC Servo is not affiliated with Kollmorgen or Regal Rexnord. Working on this kind of hardware since 1975.
Seidel + AKD coverage
Eurocard-format Seidel drives and current Kollmorgen AKD-series both come through the bench.
Eurocard format
60WKS-CE240 and 60WKS-M240 Eurocard servo drives serviced at the component level.
One-year warranty
Standard on parts and workmanship for Kollmorgen drive repairs and rebuilt units.
Seidel Heritage
The Seidel name on a Kollmorgen drive
Seidel Servo Drives was a German servo amplifier maker that came under the Kollmorgen umbrella. Hardware from that lineage still wears both names: "Kollmorgen" on the brand line, "Seidel" on the family code (60WKS), often with both legends silkscreened on the same PCB.
- 60WKS-CE240/6PB and 60WKS-M240/6 Eurocard drives still in service on industrial machines.
- Component-level board work: capacitors, IGBT power stages, signal-conditioning electronics.
- Front-panel LED legend (I-DC, V-TA, BTB, FAULT, I-RMS) helps narrow down the failure on diagnosis.
- Donor 60WKS units from inventory keep older Eurocard installs running when the OEM no longer stocks parts.
Service Coverage
What NC Servo does with a Kollmorgen drive
Each Kollmorgen drive is opened, inspected, and rebuilt at the component level. Failed parts come from inventory or off donor units, then the drive runs under load on the electronics bench before it ships back.
AKD-series servo drives
Current Kollmorgen AKD-series servo drives. Power-stage diagnostics, control-board work, feedback-channel verification, and bench testing under load.
Motion controllers and amplifiers
Kollmorgen motion controllers, amplifiers, and S-series legacy drives. I/O modules, communication interfaces, and encoder-feedback circuit work.
Kollmorgen Coverage
Kollmorgen models through the door
We are a small repair shop, not a Kollmorgen distributor. The families below are simply the ones that come through often enough to be familiar. If your part number is not on this list, send it anyway. We work on what we can.
60WKS Seidel
Eurocard-format servo drives. Examples: 60WKS-CE240/6PB, 60WKS-M240/6. Both Kollmorgen and Seidel branding on the same hardware.
AKD series
Current Kollmorgen AKD servo drives. Common bench items: control-board work, feedback verification, and DC-bus capacitor service.
Legacy and motion controllers
Older S-series Kollmorgen drives, amplifiers, and motion controllers with I/O and communication-interface boards.
Common Faults
What usually shows up on a Kollmorgen repair
A description of the symptom or the front-panel LED state helps the diagnosis, but a model number is often enough. The categories below cover the kinds of trouble that come in across Kollmorgen Seidel and AKD drives.
| Power supply and DC-bus | Failed bus capacitors, blown rectifier diodes, and supply-rail rebuild on Seidel 60WKS Eurocard cards and AKD frames. |
|---|---|
| IGBT power stage | Blown IGBT modules, failed gate-driver circuits, and overcurrent-trip protection issues on both Seidel and AKD power stages. |
| Feedback and control | Encoder-feedback channel faults, control-board signal drift, and I-RMS / I-DC indicator anomalies on the front panel. |
| Connector and electrical | Damaged or corroded connectors, cable strain, and contamination on the connector pins after years of service in industrial environments. |
Repair Path
From part number to ship-back
Most Kollmorgen jobs follow the same four steps. Lead time varies because some repairs need parts pulled off a donor unit, so we only commit to timing once a tech has the drive on the bench.
Get in touch
Phone or email with the Kollmorgen or Seidel model number, a quick note on the symptom, and the LED state if the front panel still reads.
Bench review
Once the drive arrives, a tech opens it, inspects the power stage and control boards, and runs it under load on the electronics bench to confirm what failed.
Cost & approval
We call back with the cost and a rough turnaround. Nothing happens without your sign-off.
Repair, test, ship
Failed components are replaced from inventory or off donors, the drive is verified under load, and the unit ships back.
Bench Verification
Each Kollmorgen drive gets verified before ship
Repaired Kollmorgen drives are tested under load on the electronics bench. Power-stage performance, DC-bus behavior, feedback-channel response, and front-panel indicator behavior are all verified against documented procedures.
- DC-bus rebuild verified at rated voltage on the supply rail.
- IGBT module switching and gate-driver behavior checked under representative load.
- Feedback channel and front-panel indicators verified end-to-end where applicable.
- Older Eurocard test fixtures kept on hand for legacy 60WKS Seidel drives.
Inventory & Parts Pool
A 19,000+ unit pool with Kollmorgen hardware in it
NC Servo's in-house inventory holds over 19,000 valves and drives accumulated since 1975, including Seidel 60WKS Eurocards and Kollmorgen AKD donors. That pool is where the shop pulls aftermarket parts and donor components for older Kollmorgen drives that the OEM no longer stocks.
- Aftermarket and donor parts for 60WKS Seidel, AKD, S-series, and motion controllers.
- If we have a rebuilt match for your model, trade in your old drive for a discount on the rebuilt.
- No match on the shelf? We can suggest a comparable Kollmorgen or cross-brand option, or repair yours.
- Rebuilt drives carry the same 1-year warranty as a fresh repair.
Repair Scope
Where the line is on a Kollmorgen repair
NC Servo works on the drive hardware itself: power stage, DC bus, control boards, I/O modules, and feedback channels. Drive parameter setup, motion-program development, and getting the drive back on the machine stay with your team or your installer.
- Component-level board repair: power stage, control boards, signal-conditioning electronics.
- Eurocard 60WKS PCB-level rework on Seidel-era hardware.
- Drive parameter configuration and motion programming remain on your side.
- Putting the drive back on the machine follows your normal startup process.
More on Kollmorgen Repair
Related pages and brands
Kollmorgen drives often share a panel or system with drives from related brands. The pages below cover related coverage and adjacent drive work.
Servo drive repair hub
The full range of servo drive and amplifier repair NC Servo handles, across the brands that come through the shop.
Indramat drives
Another European servo drive heritage brand the shop services. Often paired with Kollmorgen on industrial automation systems.
Allen-Bradley drives
Major US drive brand the shop services. Useful when Kollmorgen sits alongside Allen-Bradley on the same panel.
Repair vs replace
When component-level repair makes sense versus buying new or rebuilt.
Kollmorgen Seidel drive faulted out?
Give us a call with the 60WKS, AKD, or other Kollmorgen model number, and the LED state if the front panel still reads. We will check the shelf, and if we have a rebuilt match you can swap your old one for a discount. If we do not, we can suggest a comparable drive or repair the one you have.
FAQ
Common questions about Kollmorgen repair
A few things customers ask before sending a unit in. Anything not covered, give us a call at 734-326-6666.
Is NC Servo affiliated with Kollmorgen?
No. NC Servo Technology is an independent, third-party repair facility and is not affiliated with, authorized by, or endorsed by Kollmorgen, Regal Rexnord, or any related entities. All Kollmorgen and Seidel trademarks are the property of their respective owners.
What is Kollmorgen Seidel?
Seidel was a German servo drive maker that became part of Kollmorgen. Eurocard-format drives like 60WKS-CE240/6PB and 60WKS-M240/6 carry both "Kollmorgen" and "Seidel" branding, sometimes on the same nameplate. We service the Seidel-era drives alongside current Kollmorgen AKD hardware.
Which Kollmorgen drives do you cover?
Kollmorgen Seidel 60WKS Eurocard servo drives, AKD-series servo drives, Kollmorgen amplifiers and motion controllers, and older S-series legacy drives. Send a model number and we will tell you what we have.
Can NC Servo recover programs or parameters from a failed Kollmorgen drive?
Most failures are hardware, and the unit comes back working with its program intact. Corrupted programs are rare; if one is already corrupted before the unit reaches us, that's the one thing we can't recover.
How long does a Kollmorgen repair take?
It varies. NC Servo is a small independent shop, and lead time depends on the drive, what is wrong with it, and whether parts have to come off a donor unit. Give us a call once the drive ships in, and we can give a current estimate after a tech has looked at it.
What if the Kollmorgen drive is beyond economic repair?
If the drive is not fixable, we will let you know and help source a replacement: a rebuilt match if we have one on the shelf, or a comparable Kollmorgen or cross-brand alternative.
What is the warranty on a Kollmorgen drive repair?
One year on parts and workmanship for repairs and rebuilt units. Standard exclusions apply for line-side faults, improper installation, and out-of-spec operation. Verifying line voltage, supply protection, and load matching before powering up a repaired drive is recommended.