Core Electrical Parameters
| Parameter | Value |
|---|---|
| Product Model | 6RA8087-6DV62-0AA0-Z G20 |
| Product Type | SINAMICS DCM digital chassis converter for four-quadrant drives |
| Circuit Configuration | (B6)A(B6)C (two fully-controlled 3-phase bridges in inverse-parallel, circulating current-free) |
| Rated AC Input Voltage | 3AC 400 V (50/60 Hz), tolerance +15%/-20% |
| Rated AC Input Current | 706 A |
| Rated DC Armature Voltage | 420 V DC |
| Rated DC Armature Current | 850 A |
| US‑rating (420 V DC) | 628 A |
| Rated DC Field Voltage | 320 V DC |
| Rated DC Field Current | 30 A |
| Rated Field Supply Voltage | 2AC 400 V |
| Rated Power | 357 kW (420 V DC × 850 A) |
| Power Loss | Approx. 3.2 kW |
| Mode of Operation | Four‑quadrant (regenerative feedback to AC supply) |
| Load Class | Class DC I (continuous duty) |
| Field Rectifier | D420/850 (controllable 1Q field rectifier) |
Mechanical & Environmental Parameters
| Parameter | Value |
|---|---|
| Construction Type | Digital chassis unit |
| Degree of Protection | IP00 |
| Installation Altitude | ≤1000 m (derate 1% per 100 m above 1000 m) |
| Cooling Method | Forced air cooling |
| Coolant Temperature | 40 °C |
| Storage & Transport Temperature | -40°C to +70°C |
| Dimensions (H×W×D) | 700×268×311 mm |
| Weight | Approx. 42 kg |
Excitation & Control Parameters
| Parameter | Value |
|---|---|
| Max. Field DC Current | 30 A |
| Control Supply Voltage | 230 V AC or 400 V AC |
| Control Supply Frequency | 50/60 Hz |
| Control System | Microprocessor-based with drive control chart |
| Option | G20 (PROFIBUS DP communication interface) |
Protection & Additional Features
| Feature | Details |
|---|---|
| Overvoltage Protection | AC supply max. overvoltage 0% |
| Recommended Fuses | Armature: 1000 A high‑speed thyristor protection fuse; Field: 30 A high‑speed thyristor protection fuse |
| Supply Choke | 3‑phase choke at 0.089 mH (recommended) |
| Ventilation Space | 100 mm above and below, 0 mm at sides |
| Key Features | PROFIBUS DP (G20), expandable with SINAMICS DCM components, coated PCBs, nickel‑plated copper busbars, free function blocks |
