Kuka KPS-600/20-REL

Technical Dossier

Product Details And Specifications

KUKA KPS Series Technical Notes

The Evolution of KPS Series Architecture

The KPS series underwent several distinct architectural generations aligned with KUKA's controller platform transitions. Early KPS units designed for the KR C1 platform (introduced circa 1996) operated on a discrete analog regulation architecture with limited diagnostic output. The KR C2 era (2000–2010) introduced the KPS-600 family, including the KPS-600/20-REL, which added relay-monitored safety outputs and improved EMC shielding for compliance with EN 60204-1. The KR C3 and KR C4 transitions brought digitally supervised power rails with EtherCAT-compatible diagnostic interfaces, represented by the KPS-27/20 and KPS-54/6 sub-families.

Compatibility across generations is not plug-and-play. KR C1 KPS units use a proprietary 64-pin backplane connector incompatible with KR C2 cabinets. KR C2 KPS units share a common form factor but differ in firmware handshake protocols from KR C4 equivalents. Sourcing the correct generation is mandatory for safe integration. DriveKNMS maintains cross-reference tables for all known KPS variants.

KPS Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed models within the KUKA KPS power supply series. Units are categorized by function and controller generation compatibility.

Primary Cabinet Power Supplies (KR C2 / KR C3 Compatible)

• KPS-600/20-REL: 600W cabinet PSU with relay-monitored safety output, KR C2 primary
• KPS-600/20: 600W cabinet PSU, standard variant without relay monitoring output
• KPS-600/10: 600W PSU, 10A output rail, reduced-load KR C2 configurations
• KPS-27/20: 27V / 20A regulated supply for KR C4 controller auxiliary bus
• KPS-54/6: 54V / 6A supply for KR C4 drive bus pre-charge circuit
• KPS-27/40: 27V / 40A high-current variant for multi-axis KR C4 cabinets
• KPS-600/20-NR: 600W PSU, non-relay variant, KR C2 retrofit applications

Auxiliary and Logic Power Supplies

• KPS-15/6: 15V / 6A logic supply for KR C1 controller internal bus
• KPS-24/10: 24V / 10A auxiliary supply for I/O interface boards
• KPS-24/20: 24V / 20A auxiliary supply, extended I/O configurations
• KPS-48/10: 48V / 10A intermediate bus supply for servo pre-charge

Regenerative and Braking Supply Variants

• KPS-600/20-BR: 600W PSU with integrated braking resistor interface
• KPS-600/40: 600W / 40A high-current variant for heavy-payload robot cabinets
• KPS-1200/20: 1200W dual-rail supply for tandem or extended-reach robot systems
• KPS-1200/40: 1200W / 40A supply for multi-robot shared cabinet configurations
• KPS-600/20-UPS: 600W PSU with integrated UPS buffer for controlled shutdown sequences

Sourcing Hard-to-Find & Obsolete KPS Series Parts

Q: How is condition confirmed before quotation?
A: Available condition, photos, test records and documentation are checked according to the requested model and sourcing channel before a formal RFQ response.

Quality Control for the KPS Series Range

KPS units present specific test challenges due to their integrated relay safety circuits, multi-rail output architecture, and sensitivity to input voltage transients. DriveKNMS applies the following test protocol to all KPS units prior to dispatch: