KPS-600
May 14, 2026

KPS-600

The KPS‑600 is a central power supply for KUKA KRC2 robot controllers. It generates the 585 V DC intermediate circuit, 24 V control voltage, and integrates brake control, mains contactor, and safety logic(‑REL:relay‑based safety;‑ESC:electronic safety).

Description

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The KPS‑600 is a central power supply for KUKA KRC2 robot controllers. It generates the 585 V DC intermediate circuit, 24 V control voltage, and integrates brake control, mains contactor, and safety logic(‑REL:relay‑based safety;‑ESC:electronic safety).
  • Model:KPS‑600/20‑REL(standard)

  • Order No.:00‑110‑728

  • Application:KRC2 cabinets(KR150–KR300)

  • Safety:External safety relays(‑REL);integrated ESC(‑ESC)

2. Technical Specifications

Electrical

  • Input:3∼ AC 400/480 V ±10 %, 50/60 Hz

    • Rated current:25 A(rms)

    • Peak current:95 A(rms, 0.5 s)

  • DC Bus:565–585 V DC

    • Rated:20 A continuous

    • Peak:64 A

  • Control:24 V DC / 27 V DC, 30 A max

  • Power:~12 kW(6–8 axes)

  • Protection:OV/UV/OC/SC/OT/GF(‑REL);+ ESC watchdog(‑ESC)

Mechanical & Environmental

  • Dimensions:200 × 120 × 100 mm

  • Weight:4.7 kg

  • Protection:IP20(cabinet mount)

  • Temperature:0 °C to +55 °C

  • Cooling:Forced air fan(≥50 mm clearance)

3. Main Components(KPS‑600 Internal)

  • Mains contactor

  • Rectifier & DC bus charging circuit

  • Brake control(6 axes + 2 external axes)

  • 24 V/27 V distribution

  • Battery charging circuit

  • Safety logic:relays(‑REL)or ESC(‑ESC)

  • Interbus(IBS)interface to KSD1 drives

4. Connector Assignment(X1–X5)

X1 – Mains Input

  • L1/L2/L3:Three‑phase AC

  • N:Neutral

  • PE:Protective earth

X2 – DC Bus(to KSD1)

  • DC+:585 V DC positive

  • DC−:585 V DC negative

X3 – Control Voltage

  • +24 V / 0 V:Cabinet control power

X4 – Battery & Brake

  • BAT+/BAT−:2 × 12 V battery

  • BRK+/BRK−:External brake resistor

X5 – IBS & Safety

  • IBS IN/OUT:Interbus to KSD1 drives

  • SAFE:E‑stop/safety door(‑REL:relay contacts;‑ESC:dual‑channel)

5. LED Status(Front Panel)

LED1(Red)– Fault

  • Off:Normal

  • On:Critical fault(OV/OT/watchdog)

  • Flashing 3 Hz:Brake error

  • Flashing 6 Hz:Safety trip(E‑stop/door open)

LED2(Green)– Power OK

  • Off:No power

  • Flashing 1.5 Hz:DC bus <60 V

  • On:DC bus ready(>60 V)

6. Safety Instructions

  • High voltage:585 V DC. Wait ≥5 min after OFF for discharge.

  • Only qualified personnel may install/service.

  • ‑REL:Safety relays must be wired dual‑channel.

  • ‑ESC:Do not bypass ESC safety circuits(SIL2/PLd).

  • Keep vents clear;overheating causes shutdown.

7. Installation & Wiring

  1. Mount vertically in KRC2 slot.

  2. Connect X1 to 3∼ mains(check PE).

  3. X2 → DC bus rail → KSD1 X1.

  4. X3 → 24 V control distribution.

  5. X4:battery + brake resistor.

  6. X5:IBS daisy‑chain + safety wiring.

  7. Torque power terminals to 2.5 Nm.

8. Operation

  • Power‑on:Mains ON → charge → DC bus ready(LED2 ON).

  • Standby:LED2 ON, LED1 OFF.

  • Motion:Supplies 585 V DC to KSD1 drives.

  • Regeneration:Energy dumped via brake resistor.

  • Safety stop:‑REL(20–50 ms relay delay);‑ESC(<10 ms STO).

9. Maintenance

  • Daily:LED status, fan, cables.

  • Weekly:Clean fan/vents.

  • Monthly:Retighten power terminals(2.5 Nm).

  • Quarterly:Check battery voltage & brake resistor.

  • Annual:Capacitor inspection, ESC diagnostic(‑ESC).

10. Troubleshooting(Common)

  • LED1 flashing 6 Hz:Safety trip → check E‑stop/door/X5 wiring.

  • LED2 flashing 1.5 Hz:DC bus low → mains/fuses/internal fuse.

  • LED1 ON(OV):Mains high, regenerative overload, or brake resistor missing.

  • LED1 flashing 3 Hz:Brake error → BRK wiring/resistor.

  • Overtemperature:Fan blocked, vents covered, or ambient >55 °C.


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