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KOLLMORGEN PSR4/5A-250
Product Type: DC Bus Power Supply with Regenerative Capability
Product Introduction:
The PSR4/5A-250 is a Kollmorgen PSR Series DC power supply unit designed to provide stable DC bus voltage to servo drives while handling regenerative energy from decelerating motors. It is a 4-quadrant power supply capable of both sourcing and sinking current.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Model Designation | PSR4/5A-250 |
| Input Voltage | 3× 380–480 VAC, 3-phase, 50/60 Hz |
| Output Voltage (DC Bus) | 540 VDC (nominal, adjustable 400–650 VDC) |
| Rated Output Current | 4 A continuous / 5 A peak (10 sec) |
| Rated Output Power | 2,160 W (4 A × 540 V) |
| Peak Output Power | 2,700 W (5 A × 540 V) |
| Regeneration Capability | Full 4-quadrant (sources and sinks current) |
| Bus Voltage Ripple | < 1% peak-to-peak |
| Efficiency | > 92% at rated load |
| Power Factor | > 0.95 (with PFC) |
| Communication | EtherCAT, CANopen |
| Enclosure Rating | IP20 (chassis mount) |
| Operating Temperature | 0°C to +40°C (derate above 35°C) |
| Dimensions (W×H×D) | ~200 mm × 280 mm × 180 mm |
| Weight | ~6.5 kg |
| Cooling | Forced air (internal fan) |
Functional Features:
- 4-quadrant operation: regenerates energy back to AC line (no brake resistor needed)
- Active front end (AFE) with unity power factor
- Programmable bus voltage via EtherCAT or analog input
- Overvoltage, overcurrent, overtemperature protection
- Parallel operation capable (up to 4 units)
- DC bus monitoring via communication
Performance Parameters:
| Parameter | Value |
|---|---|
| Voltage Regulation | ±0.5% |
| Current Regulation | ±1% |
| Dynamic Response (voltage) | < 10 ms (10% to 90% load step) |
| Regeneration Efficiency | > 95% |
| THD (Input Current) | < 5% |
| MTBF | > 100,000 hours |
Material Composition:
- Housing: Galvanized steel, powder-coated (RAL 7035)
- PCB: FR-4, conformal coated
- Capacitors: Electrolytic + film (DC link), 105°C rated
- IGBT Modules: Infineon or equivalent
- Fan: Ball bearing, 40,000 hour life
Structural Features:
- DIN rail or chassis mount
- Terminal block connections for AC input, DC output, communication
- Status LEDs: Power, Fault, Regeneration Active
- Removable fan module for maintenance
Applicable Industries:
- CNC machining centers (multi-axis)
- Large servo-driven presses
- Wind tunnel and dynamometer systems
- Metal forming machines
- Any application with high regenerative energy
Installation Requirements:
- Mount in ventilated enclosure (min 100 mm clearance above)
- Connect AC input with 3-phase circuit breaker (10 A, C-curve)
- DC output cables: min 6 mm² copper
- Ground chassis to protective earth
- Connect EtherCAT to master controller
Usage Precautions:
- Do not exceed 5 A continuous current
- Do not operate above +40°C ambient
- Ensure AC input voltage is within 380–480 VAC range
- Verify regeneration path is active before decelerating loads
- Service only by qualified electrician
