KUKA KRC2 / KRC4 Servo Power Supply Unit — KSP600-320 / KPS-600/20-ESC | KUKA Robot Controller Platform
Engineering Background
The KUKA servo power supply is the backbone of the KRC2 and KRC4 robot controller cabinet, converting mains AC input into the regulated 600 V DC bus that drives all servo axes simultaneously. Without a correctly functioning PSU, the entire kinematic chain is inoperative. Konmask.com stocks verified, pull-tested units to minimise your line-down exposure.
Product Positioning
This listing covers three interchangeable part numbers used across KUKA KRC2 and KRC4 generations:
- 00-119-763 — KRC2 SBM2 Servo Power Supply
- 00-198-266 — KRC4 KSP600-320 Servo Power Supply
- 00-134-525 — KRC2 KPS-600/20-ESC Servo Power Supply
All three deliver a nominal 600 V DC output to the servo drive bus and are direct drop-in replacements within their respective controller generations.
Complete Technical Specifications
| Manufacturer | KUKA Roboter GmbH |
| Part Numbers | 00-119-763 / 00-198-266 / 00-134-525 |
| Module Designations | SBM2 / KSP600-320 / KPS-600/20-ESC |
| Compatible Controllers | KUKA KRC2, KRC4 |
| Output Voltage (DC Bus) | 600 V DC (nominal) |
| Rated Output Current | 20 A continuous |
| Peak Output Current | 320 A (KSP600-320 designation) |
| Input Voltage | 3-phase AC 400 V / 480 V ±10% |
| Input Frequency | 50 / 60 Hz |
| Cooling | Forced air (internal fan) |
| Protection Class | IP20 (cabinet-mounted) |
| Operating Temperature | 0 °C to +45 °C |
| Storage Temperature | −25 °C to +70 °C |
| Weight | approx. 300 g |
| Mounting | DIN rail / cabinet backplane |
| Communication Interface | KRC internal bus (proprietary) |
| Country of Origin | Germany |
Proven Application Environments
- Automotive body-in-white welding and assembly lines (KRC2 / KRC4 6-axis robots)
- Palletising and material-handling cells requiring high-cycle servo duty
- Foundry and press-tending applications with heavy regenerative braking loads
- Aerospace component machining with KUKA KR QUANTEC / KR AGILUS platforms
- Collaborative robot integration cells where KRC4 compact controllers are deployed
- MRO (Maintenance, Repair & Overhaul) spare-parts programmes for multi-robot facilities
Engineering Advantages
- Unified DC Bus Architecture — single PSU feeds all servo axes, simplifying cabinet wiring and reducing single-point failure risk.
- Active Front-End Design — regenerative braking energy is fed back to the mains, reducing heat dissipation and energy consumption.
- Integrated Soft-Start — limits inrush current on power-up, protecting upstream fusing and contactors.
- Onboard Diagnostics — status LEDs and KRC bus fault codes enable rapid fault isolation without external test equipment.
- Cross-Generation Compatibility — the three P/Ns share identical bus connector pinouts, allowing controlled migration between KRC2 and KRC4 platforms.
System Architecture & Signal Flow
Mains AC (3-phase) → Cabinet EMC Filter → KPS/KSP Rectifier & PFC Stage → 600 V DC Bus → Individual Servo Drive Modules (KSD / KSM) → Motor Windings. The PSU also supplies the 24 V DC logic rail via an integrated SMPS secondary, powering the KRC controller board, I/O modules, and safety relay chain. A pre-charge circuit limits bus capacitor inrush; once bus voltage reaches threshold, the main contactor closes and the KRC enables drives.
Sourcing & Quality Verification
- All units are sourced from decommissioned OEM production lines or authorised KUKA service channels.
- Each module undergoes incoming inspection: visual check, capacitor ESR measurement, and powered bus-voltage verification at 400 V AC input.
- Serial numbers are cross-referenced against KUKA’s published revision history to confirm firmware and hardware compatibility.
- Units are shipped in anti-static packaging with desiccant; ESD-safe handling throughout.
- 12-month functional warranty against manufacturing defects.
Procurement Process
- Confirm your controller generation (KRC2 or KRC4) and existing P/N from the cabinet label or KUKA documentation.
- Contact Konmask.com via the enquiry form or email [email protected] to verify stock and lead time.
- Receive proforma invoice; payment via T/T, PayPal, or trade-credit terms for approved accounts.
- Unit dispatched within 1–3 business days; DHL Express / FedEx International Priority available.
- Post-delivery technical support provided by Konmask engineering team at no additional charge.
Technical FAQ
Q: Can I use a KRC4 KSP600-320 (00-198-266) in a KRC2 cabinet?
A: No. While the DC bus voltage is identical, the KRC2 and KRC4 use different backplane connectors and internal bus protocols. Always match the P/N to your controller generation.
Q: What causes KPS/KSP failure in service?
A: The most common failure modes are electrolytic capacitor degradation (typically after 8–12 years), IGBT gate-driver faults from voltage transients, and fan bearing seizure causing thermal shutdown. Konmask units are inspected for all three.
Q: Is a KUKA service engineer required for replacement?
A: Replacement is a module swap on the cabinet backplane. Qualified automation engineers familiar with KRC cabinet architecture can perform the exchange; however, KUKA recommends a certified service partner for warranty-critical installations.
Q: Do you provide a test report with the unit?
A: Yes. A one-page incoming inspection record (visual + electrical) is included with every shipment on request.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
