Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | KOLLMORGEN |
| Model | 60WKS-CE240/22PB |
| Product Type | Analog servo amplifier for brushless synchronous motors |
| Series | Legacy 60WKS analog servo amplifier family |
| Power Stage Family | 240 VAC DC-link / 240 V-class output stage |
| Control Modes | Position, speed, torque |
| Feedback Interface | Rotor position sensor input (type depends on sub-variant) |
| Configuration | User-adjustable parameters via internal PCB/potentiometers |
| Protection Features | Over/under-voltage protection, transistor temperature monitoring |
| Product Status | Obsolete / discontinued spare |
Product Introduction
Legacy KOLLMORGEN 60WKS amplifiers do not retire quietly. They sit inside older motion cabinets, driving brushless synchronous motors with analog command signals and rotor-position feedback. The 60WKS-CE240/22PB belongs to that analog era: it is not a modern EtherCAT servo drive, and it should not be confused with newer KOLLMORGEN AKM/AKM2G or KED/KAS platforms.
Its practical value is replacement continuity. When an older axis faults, the fastest path back to production is often a like-for-like amplifier swap. The 60WKS-CE240/22PB supports position, speed, and torque control, and includes basic protection for over/under voltage and power-stage temperature. Because the 60WKS family has multiple current ratings and custom PCB options, the suffix and internal revision are critical.

KOLLMORGEN 60WKS-CE240 22PB
QA/QC Transparency SOP
- Intake & Origin Verification — Record full model 60WKS-CE240/22PB, serial number, firmware/PCB revision, and connector type. Check for burnt power components, cracked solder joints, swollen capacitors, or corrosion.
- Live Functional Testing — Install into a compatible 60WKS test setup with a matched brushless motor. Verify power-up, enable sequence, fault status, and basic motor rotation under low-speed command.
- Electrical Parameter Tests — Measure input continuity, DC-link behavior, output stage balance, and insulation resistance with a Fluke 115 or equivalent. Do not apply full bus voltage without a proper test fixture.
- Feedback & Tuning Check — Confirm rotor position sensor interface, commutation alignment, and analog command response. Verify that tuning potentiometers or PCB settings match the original configuration.
- Final QC & Anti-Static Packaging — Seal in ESD-safe packaging with nameplate photos, test record, revision data, and compatibility notes. Flag any undocumented modifications.
Field Engineer Gotchas
- Do not confuse it with modern KOLLMORGEN drives. The 60WKS-CE240/22PB is a legacy analog amplifier. It is not directly interchangeable with AKD, AKM2G, KED, or KAS drives.
- The “22PB” suffix is not decorative. Within the 60WKS- family, suffixes and PCB revisions can change current rating, feedback compatibility, and tuning behavior. A visually similar unit may not be a drop-in replacement.
- Commutation alignment matters. If the rotor position sensor feedback is wrong, the motor may cog, fault, or run erratically even if the amplifier appears healthy.
- Analog command noise can mimic drive failure. Before replacing the amplifier, check ±10 V command integrity, reference ground, shielding, and power supply stability.
- Custom PCBs may carry site-specific settings. Some 60WKS units include user-adjustable parameters or custom boards. Swapping in a clean unit without restoring those settings can cause instability.
- Beware of unverified online specs. Several surplus listings mix 60WKS variants or attach generic ratings to specific suffixes. Always confirm against the original nameplate.

KOLLMORGEN 60WKS-CE240 22PB
Application Scenarios
- Legacy CNC and machine tool axes. Used when an older KOLLMORGEN analog servo axis faults and the motor/feedback architecture is still serviceable.
- Industrial test stands and positioning equipment. Suitable for older brushless servo systems that rely on analog command signals rather than fieldbus control.
- Aging packaging, printing, and web-handling lines. Keeps existing motion axes running while migration to modern digital drives is planned.
- Retrofit bridge spare. Maintains production continuity when replacing an entire motion stack is not immediately feasible.
FAQ
No. The 60WKS analog servo amplifier family is a legacy product line. Supply now depends on surplus, refurbished, or tested used inventory.
Can I replace it with a modern KOLLMORGEN AKD or KED drive?
Not as a direct drop-in. Modern drives use different connectors, feedback interfaces, tuning tools, and safety architectures. Substitution requires engineering validation.
It identifies the 240 V-class power stage family within the 60WKS analog servo amplifier series.
What does “22PB” mean?
It denotes a specific configuration within the 60WKS- family, typically related to current/output rating and internal PCB or feedback options. Confirm it against the installed nameplate.
Does it support EtherCAT or CANopen?
No. The 60WKS-/22PB is a legacy analog servo amplifier. EtherCAT, CANopen, and similar fieldbus features belong to newer KOLLMORGEN platforms.
How do I confirm compatibility before ordering?
Provide photos of the amplifier nameplate, motor nameplate, feedback connector, control connector, and any installed custom PCB. The full model, revision, and feedback type are essential.

