KUKA KPS‑600/20‑REL Servo Power Supply Unit

Technical Specifications

Model：KPS‑600/20‑REL

Brand：KUKA

Part Number：00‑111‑847

Product Type：Robot main servo power supply unit

Applicable Cabinet：KRC2, KRC2‑ED05, VKRC2 robot controller cabinet

AC Input：3‑Phase 400‑415V AC,50/60Hz,15A rated input current

DC‑Bus Output：565‑585V DC,20A rated output current

Suffix Definition：20=20A rated DC‑bus current；REL=integrated short‑circuit braking relay

Built‑in Circuit：Mains contactor,pre‑charge circuit,brake chopper circuit,DC‑bus discharge circuit,short‑circuit braking relay,watchdog monitoring circuit

Auxiliary Output：Internal 24V DC distribution for servo drives,brake coils,cabinet peripherals and battery charging interface

Communication Interface：Interbus IN / OUT port for cabinet internal drive‑bus communication,watchdog signal interface

Status Indicator：Multi‑color LED indicators for power supply,fault,brake and relay status

Cooling Mode：Forced air cooling with large aluminum heat sink,fan monitoring function

Built‑in Protection：Over‑voltage,under‑voltage,over‑current,over‑temperature,short‑circuit monitoring,watchdog triggered short‑circuit braking protection

Working Temperature：0℃ ~ +45℃

Storage Temperature：‑20℃ ~ +70℃

Protection Class：IP20

Dimension：220mm305mm130mm

Weight：8.2kg

Product Brief:

KPS‑600/20‑REL is a legacy main servo power supply unit for KUKA KRC2 robot cabinet. Suffix REL stands for integrated short‑circuit braking relay. When watchdog detects communication failure or system fault,the relay triggers short‑circuit braking to lock robot axes and prevent servo runaway. It converts three‑phase industrial AC into high‑voltage DC‑bus power to supply all KSD1 series servo drive modules. Integrated pre‑charge circuit limits inrush current during power‑on; brake chopper absorbs regenerative energy generated during robot deceleration. Main contactor and discharge circuit realize standard power‑on and power‑off sequence. It supports 6‑axis collective braking and 2‑axis independent external‑axis braking function. It interacts with DSE‑IBS safety board and MFC motion control board through Interbus drive bus,uploading real‑time working status and fault information. Panel LED indicators support quick on‑site fault diagnosis without extra testing tools. Plug‑in cabinet mounting structure enables convenient disassembly and module replacement. This is EOL discontinued spare component,used for power unit fault replacement of existing KRC2 robot systems. Please distinguish KPS‑600/20, KPS‑600/20‑REL and KPS‑600/20‑ESC versions before purchase,confirm part number,hardware revision and cabinet hardware configuration. Strict ESD anti‑static measures must be followed during installation and commissioning.