KUKA KR C4 SmartPAD Interface Modules: 00-176-028 / 00-277-094 / 00-170-196

Technical Dossier

Product Details And Specifications

KUKA KR C4 Series: Comprehensive Module Range and Technical Overview

The KUKA KR C4 controller platform is the fourth-generation robot controller architecture deployed by KUKA Robotics across heavy industrial sectors worldwide. It serves as the standard control cabinet for KUKA KR AGILUS, KR QUANTEC, KR CYBERTECH, KR FORTEC, and KR IONTEC robot families. Installed base spans automotive body-in-white lines, chemical plant material handling, nuclear facility maintenance robots, and refinery pipeline welding cells. The KR C4 replaced the legacy KR C2 and KR C2 ed05 platforms beginning in 2009, introducing a PC-based open architecture running KUKA System Software (KSS) on a real-time Windows Embedded Standard kernel. The SmartPAD (KCP4) teach pendant interface — connected via the X19 connector assembly — is a critical subsystem for operator programming, jogging, and safety override. The three-part interface assembly 00-176-028 / 00-277-094 / 00-170-196 constitutes the X19 SmartPAD connection harness and interface board set used across the full KR C4 cabinet range.

The Evolution of KR C4 Architecture

The KR C4 architecture was introduced in 2009 as a successor to the KR C2 (1996) and KR C2 ed05 (2004) platforms. Key architectural transitions:

KR C2 era (1996–2008): Proprietary VxWorks RTOS, DSE-IBS backplane bus, KCP2 pendant with serial RS-485 link. No Ethernet-based fieldbus native support. SmartPAD connectivity used a dedicated 25-pin D-sub harness.

KR C2 ed05 (2004–2010): Introduced Windows XP Embedded host OS alongside VxWorks real-time partition. KCP2 pendant retained. Partial EtherCAT support via optional CI3 card.

KR C4 (2009–present): Full PC-based architecture. Intel Core i5/i7 IPC. KSS 8.x operating system. SmartPAD (KCP4) connected via X19 Ethernet-over-USB hybrid interface. Supports KUKA.PLC mxAutomation, KUKA.SafeOperation, KUKA.ServoGun. Native EtherCAT, PROFINET, DeviceNet, EtherNet/IP fieldbus support via plug-in technology (KEB). The X19 interface assembly — comprising parts 00-176-028, 00-277-094, and 00-170-196 — provides the physical and electrical bridge between the KR C4 cabinet backplane and the SmartPAD pendant cable.

KR C4 compact (2013–present): Reduced footprint variant for small robots (KR AGILUS). Same X19 SmartPAD interface standard.

KR C5 (2020–present): Next-generation successor. Smaller form factor, integrated safety PLC, updated pendant interface. KR C4 parts remain in active demand for installed base maintenance.

Compatibility note: KR C4 SmartPAD interface components are not backward-compatible with KR C2 cabinets. KR C5 uses a revised X19 connector standard; cross-generation substitution requires engineering validation.

KR C4 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the KUKA KR C4 ecosystem. Classified by functional category:

SmartPAD Interface & Pendant Components

00-176-028: KR C4 SmartPAD X19 interface board, cabinet-side connector assembly
00-277-094: KR C4 SmartPAD X19 cable harness, pendant-to-cabinet link
00-170-196: KR C4 SmartPAD X19 interface bracket and strain relief assembly
00-168-334: SmartPAD KCP4 teach pendant, complete unit with enabling device
00-220-947: SmartPAD cable 10m extension, X19 compatible
00-220-948: SmartPAD cable 20m extension, X19 compatible

Controller Power Supply Modules

00-130-468: KR C4 primary power supply unit, 24VDC cabinet rail
00-116-474: KR C4 servo power supply, DC bus feed module
00-134-922: KR C4 UPS module, uninterruptible power buffer for IPC

Safety & Drive Interface Modules

00-160-185: KR C4 safety interface board (SIB), dual-channel safety monitoring
00-160-186: KR C4 safety interface board extended (SIB-Ext), additional safe I/O
00-109-403: KR C4 KPP (KUKA Power Pack), servo drive power module
00-109-404: KR C4 KSP (KUKA Servo Pack), axis drive amplifier module

Communication & Fieldbus Modules

00-174-889: KR C4 PROFINET IO controller interface card
00-174-890: KR C4 EtherNet/IP adapter module
00-174-891: KR C4 DeviceNet master interface card
00-174-892: KR C4 EtherCAT master interface module

IPC & Backplane Components

00-168-351: KR C4 industrial PC (IPC) main board, Intel Core i5
00-168-352: KR C4 IPC main board, Intel Core i7 variant
00-130-469: KR C4 backplane bus board, internal cabinet interconnect

Sourcing Hard-to-Find & Obsolete KR C4 Parts

The KR C4 platform entered its mature lifecycle phase. While KUKA continues to manufacture KR C4 cabinets, a significant portion of the installed base — particularly early KSS 8.1 and 8.2 generation cabinets — relies on first-generation interface components that are no longer in standard production runs. DriveKNMS maintains a dedicated inventory program for KR C4 lifecycle extension, covering:

— Decommissioned factory surplus from automotive OEM lines
— Tested-good pull units from KR C4 cabinet refurbishment programs
— New-old-stock (NOS) components sourced from authorized KUKA distribution channels
— Cross-referenced substitute assemblies validated for X19 interface compatibility

For end-users operating KR C4 cabinets beyond the standard 10-year support window, DriveKNMS provides long-term maintenance supply agreements (LTMSA) covering SmartPAD interface assemblies, power supply modules, and drive components. Lead times for obsolete KR C4 parts typically range from 3 to 15 business days depending on stock status.

Quality Control for the KR C4 Range

KR C4 SmartPAD interface assemblies involve multi-layer PCB construction with high-density connector arrays and mixed-signal circuitry. DriveKNMS applies the following test protocol to all KR C4 interface components prior to dispatch:

Visual & Mechanical Inspection: Connector pin integrity check (X19 50-pin array), PCB trace inspection under 10x magnification, housing crack and latch integrity verification.

Electrical Continuity Test: Full pin-to-pin continuity mapping against KUKA wiring diagram 00-176-028 Rev. C reference. Isolation resistance test at 500VDC between signal and shield planes.

Functional Bus Communication Test: Interface board installed in KR C4 test cabinet running KSS 8.6. SmartPAD enumeration verified. X19 USB-over-Ethernet handshake confirmed. Pendant display, enabling device, and emergency stop channel validated.

Burn-In Cycle: 4-hour thermal soak at 45°C ambient with active SmartPAD communication loop. Post-soak re-test of all electrical parameters.

All units ship with a DriveKNMS test certificate referencing serial number, test date, and pass/fail criteria results.