KUKA C4 Modules C4 00-284-170 00-271-601 00271601 Robot Mainboard

Technical Dossier

Product Details And Specifications

KUKA C4 Series Technical Notes

The KUKA C4 (KR C4) controller platform is the fourth-generation robot controller architecture from KUKA Roboter GmbH, deployed globally across heavy industrial sectors including automotive body-in-white assembly, chemical processing plants, nuclear facility material handling, and petroleum refinery automation. Introduced in 2009 as the successor to the KR C2 and KR C3 platforms, the KR C4 established a unified control architecture that consolidates robot control, PLC logic, motion control, and safety functions onto a single hardware backbone. Its PC-based open architecture, based on an Intel x86 platform running Windows Embedded, made it the dominant controller in high-density robot installations throughout the 2010s and into the 2020s. Installed base estimates exceed 300,000 units worldwide, making the C4 one of the most widely maintained robot controller platforms in industrial service today.

The Evolution of C4 Architecture

The KR C4 architecture replaced the proprietary DSE/DSP board topology of the KR C2 with a standardized PC motherboard and modular backplane design. Early C4 units (2009–2013) used Intel Core 2 Duo processors with DDR2 memory and a dedicated KPP (KUKA Power Pack) drive module. Mid-generation revisions (2013–2017) introduced the KR C4 compact and KR C4 smallsize variants, targeting collaborative and small-payload applications. Late-generation units (2017–present) integrated the KR C4 CK (Cabinet-free) and KR C5 transition models, with updated safety controllers (KSB, KSI) and EtherCAT-based I/O expansion.

Compatibility across C4 generations is constrained by firmware versioning (KUKA System Software, KSS 8.x). Mainboards, safety boards, and drive modules are not interchangeable between KR C2 and KR C4 without full controller replacement. Within the C4 family, backplane and power supply modules maintain a higher degree of cross-compatibility, but CPU and safety modules require matched KSS versions. Facilities operating mixed fleets of KR C4 and KR C5 controllers must maintain separate spare parts inventories.

KUKA C4 Full Catalog & Functionalities (SKU List)

The following SKUs represent the core module range of the KR C4 controller platform, classified by functional category. Each entry reflects a discrete field-replaceable unit (FRU) within the C4 cabinet architecture.

Mainboard / CPU Modules

• 00-284-170 / 00-271-601 (00271601): KR C4 robot mainboard; primary PC-based controller board integrating CPU, RAM, and system bus interface for KSS 8.x operation.
• 00-168-352: KR C4 mainboard assembly, early revision; compatible with KSS 8.2–8.3; Intel Core 2 Duo platform.
• 00-230-371: KR C4 CPU board, mid-generation; supports KSS 8.3–8.5; DDR3 memory architecture.
• 00-265-819: KR C4 compact mainboard; reduced-form-factor variant for smallsize and compact cabinet configurations.

Safety Controller Modules

• 00-168-353: KSB (KUKA Safety Board); dual-channel safety monitoring for axis-specific safe speed and safe position functions.
• 00-230-372: KSI (KUKA Safety Interface); external safety device integration module; supports PROFIsafe and CIP Safety protocols.
• 00-265-820: KSB2 safety board; updated revision with expanded safe I/O channel count; required for KSS 8.5+.

Drive / Power Modules

• 00-130-468: KPP (KUKA Power Pack) 600/20; main drive power supply; 600V DC bus, 20A continuous output.
• 00-130-469: KPP 600/64; high-current variant for KR 120–KR 500 payload class robots.
• 00-168-354: KSP (KUKA Servo Pack) 600/3x40; three-axis servo amplifier module; 40A per axis.
• 00-168-355: KSP 600/3x20; three-axis servo amplifier; 20A per axis; standard for KR 6–KR 60 class.
• 00-230-373: KSP 600/3x64; high-current servo pack for heavy-payload axes (A1/A2 on KR 500+).

I/O and Communication Modules

• 00-168-356: KUKA CCU (Cabinet Control Unit); system bus hub integrating EtherCAT, DeviceNet, and PROFIBUS interfaces.
• 00-230-374: EtherCAT I/O expansion module; 16DI/16DO; 24VDC; DIN rail mount within C4 cabinet.
• 00-265-821: PROFIBUS DP master module; supports up to 125 slave nodes; baud rate up to 12 Mbps.
• 00-284-171: DeviceNet scanner module; Class 1 and Class 3 connections; 64 node capacity.

Power Supply Modules

• 00-130-470: C4 cabinet 24VDC auxiliary power supply; 10A; powers CCU, I/O, and safety circuits.
• 00-168-357: UPS (Uninterruptible Power Supply) module for C4; maintains controller state during mains interruption for controlled shutdown.

Quality Control for the C4 Range

KR C4 mainboards and safety modules present specific test challenges due to their integrated PC architecture and dual-channel safety logic. DriveKNMS applies the following verification protocol to all C4 modules prior to shipment:

• Visual and physical inspection: PCB examination for capacitor bulge, trace damage, connector pin integrity, and conformal coating condition.
• Power-on functional test: Mainboards are bench-powered and booted to BIOS/UEFI level to confirm processor, memory, and storage interface functionality.
• KSS compatibility verification: Where applicable, boards are tested under the target KSS version (8.2, 8.3, 8.5, or 8.6) to confirm OS-level recognition and driver loading.
• Safety board dual-channel validation: KSB and KSI modules are tested for correct dual-channel output response under simulated fault injection conditions.
• EtherCAT and fieldbus communication test: CCU and I/O modules are verified for correct frame transmission and node enumeration on a test backplane.
• Burn-in cycle: All repaired or refurbished boards undergo a minimum 48-hour thermal cycling burn-in at operating temperature range (0°C to 45°C).