Description
Key Technical Specifications
- Product Model: 8V1090.00-2
- Manufacturer: B&R Industrial Automation
- Product Type: ACOPOS Servo Drive
- Rated Power: 4 kW
- Rated Current: 8.8 A (Continuous)
- Peak Current: 24 A (Short-term)
- Input Voltage: 3x 400-480 VAC ±10%
- Input Frequency: 50/60 Hz
- Integrated Features: Line Filter, Braking Resistor, Safe Restart Inhibit
- Switching Frequency: 5 / 10 / 20 kHz (Selectable)
- Protection Class: IP20
- Operating Temp: 5°C to 40°C (Derate to 55°C)
- Condition: Refurbished / Tested
Product Introduction
Your injection molding machine just threw a drive fault, and production is bleeding money. The B&R 8V1090.00-2 is the 4 kW ACOPOS drive sitting in that cabinet, handling the precise torque control needed for screw positioning and clamp movement. It’s not a generic VFD; it’s a high-bandwidth servo amplifier with a built-in braking resistor and line filter, saving you panel space and wiring time.
This unit delivers 8.8 A continuous current with a 24 A peak for rapid acceleration, all while maintaining a compact 70.5 mm width. We test every B&R 8V1090.00-2 on a live B&R test bench to verify IGBT switching and safety interlock logic, because a failed brake chopper means a DC bus overvoltage trip. Bottom line—it’s the workhorse for mid-range B&R machines, and when the OEM quote takes 12 weeks, this is your lifeline.
Troubleshooting Quick Reference
| Fault Symptom | Probable Cause | Relevancy | Quick Check | Fix |
|---|---|---|---|---|
| DC Bus Overvoltage | Brake Resistor Fail | 90% | Measure resistor continuity; check chopper | Replace resistor; verify wiring |
| Overcurrent (OC) | Motor Short / IGBT | 85% | Megger motor cables; check U/V/W | Isolate motor; replace drive if shorted |
| Safe Restart Fault | Safety Interlock Open | 80% | Check X20/X21 safety loop; verify 24V | Close safety circuit; reset drive |
| Overtemperature | Fan Dead / Blocked Vent | 75% | Inspect rear fan; clean heatsink fins | Replace fan; improve airflow |
| Comm Loss (POWERLINK) | Cable / Node ID | 70% | Check X2X/POWERLINK LED; verify ID | Swap cable; check termination |
| Motor Oscillation | Tuning / Feedback | 60% | Check encoder cable; run auto-tune | Verify shielding; re-tune gains |
B&R 8V1090.00-2
Application Scenarios & Pain Points
- Injection Molding Machines: High torque at low speed for screw recovery. The 8V1090.00-2’s integrated braking resistor handles the regenerative energy during screw deceleration without external resistors.
- Packaging Robotics: Rapid pick-and-place cycles. 24 A peak current provides the acceleration needed for 0.5s cycle times without upsizing the drive frame.
- Printing Presses: Multi-axis synchronization. The integrated line filter reduces EMI that would otherwise corrupt the POWERLINK bus in electrically noisy environments.
