• Model numbers: KPS‑600/20‑ESC, KPS‑600/20‑REL

• Order numbers: 00‑104‑781, 00‑110‑728

• Application: KRC2 cabinets for KR150 to KR300 heavy‑payload robots

• Function: Main DC bus supply, control power supply, battery charging, brake energy management

2. Technical Specifications

Electrical Data

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

  • Rated current: 25 A (rms)

  • Peak current: 95 A (rms, 0.5 s cycle)

• Output – Intermediate Circuit:

  • DC voltage: 565–585 V (continuous)

  • Rated current: 20 A

  • Peak current: 64 A

• Output – Control Voltage:

  • 24 V DC / 27 V DC, 30 A max

• Power rating: Approx. 12 kW

• Protection: Overvoltage, undervoltage, overcurrent, short circuit, overtemperature, ground fault, watchdog monitoring

Mechanical & Environmental

• Dimensions (W × H × D): 200 × 120 × 100 mm

• Weight: 4.7 kg (approx.)

• Protection class: IP20 (for cabinet installation)

• Operating temperature: 0 °C to +55 °C

• Storage temperature: −20 °C to +70 °C

• Cooling: Integrated forced‑air fan; maintain clear airflow (≥50 mm clearance)

3. Connector Assignment

X1 – Mains Input

• L1, L2, L3: Three‑phase AC

• N: Neutral

• PE: Protective earth

X2 – DC Intermediate Circuit

• DC+: 585 V DC positive

• DC−: 585 V DC negative

• Connects to X1 of all KSD1 servo drives

X3 – Control Voltage

• +24 V / 0 V: Control power for cabinet components

X4 – Battery & Brake

• BAT+, BAT−: Battery charging (2 × 12 V lead‑acid)

• BRK+, BRK−: External brake resistor connection

X5 – Servo Bus & Safety

• IBS IN / OUT: Interbus servo bus (communication with KSD1 drives)

• SAFE: Safety interlock signals (E‑stop, safety door)

4. LED Status Indicators (Front Panel)

• LED1 (Red) – Fault

  • Off: Normal operation

  • On: Critical fault (overvoltage, overtemperature, watchdog)

  • Flashing (3 Hz): Brake error

  • Flashing (6 Hz): Communication error

• LED2 (Green) – Power OK

  • Off: No power / processor inactive

  • Flashing (1.5 Hz): Intermediate circuit <60 V

  • On: Intermediate circuit >60 V (ready for operation)

5. Safety Instructions

• High voltage hazard: DC intermediate circuit up to 585 V.

  → Wait at least 5 minutes after switching off the controller for capacitors to discharge before any wiring or maintenance.

• Risk of electric shock: Only qualified personnel should perform installation or service.

• Do not open, modify, or bypass internal components or safety circuits.

• Ensure reliable protective earth (PE) connection for the cabinet, KPS, and all drives.

• Keep ventilation slots free of dust and obstructions; inadequate cooling causes overheating.

6. Installation & Wiring

1. Mount the KPS‑600 vertically in the designated KRC2 cabinet slot.

2. Connect X1 to three‑phase mains (observe correct phase sequence and PE).

3. Wire X2 (DC+/DC−) to the DC bus distribution rail (connects to all KSD1 drives).

4. Connect X3 to the 24 V DC control distribution.

5. Attach battery cables to X4 (BAT+/BAT−) and brake resistor to BRK+/BRK−.

6. Connect servo bus IBS IN / OUT in daisy‑chain configuration with KSD1 drives.

7. Tighten all power terminals to 2.5 Nm torque.

7. Operation

• Power‑on: After mains switch ON, internal charging circuit energizes the DC bus.

• Standby: Green LED2 ON → DC bus ready; red LED1 OFF → no faults.

• Drive operation: KPS supplies stable DC 585 V to KSD1 drives during all robot motions.

• Regenerative energy: During deceleration, excess energy is dissipated via the brake resistor (monitored by KPS).

• Fault response: Red LED1 ON; DC bus disabled. Read fault code via KCP teach pendant or WorkVisual.

8. Maintenance

• Daily: Check LED status, fan operation, and cable integrity.

• Weekly: Clean cooling fan and air vents; remove dust buildup.

• Monthly: Retighten X1, X2, and X4 power terminals (2.5 Nm).

• Quarterly: Verify battery charging voltage and brake resistor resistance.

• Annual: Inspect electrolytic capacitors (bulging), fan wear, and perform full diagnostic test via WorkVisual.