Product Overview: SIMOREG DC Master, single‑quadrant (1Q) DC drive with B6C bridge; 3‑phase 690 V AC input, 830 V DC armature output, integrated 85 A field rectifier. Discontinued; recommended successor: 6RA8097-4KS22-0AA0.
1. Electrical Ratings (Armature Circuit)
| Parameter | Value | Notes |
|---|---|---|
| Input Voltage (3‑phase AC) | 690 V AC | +15% / −20% tolerance; 50/60 Hz (45–65 Hz) |
| Input Current (RMS) | 2155 A | At rated output, 690 V AC input |
| Output Voltage (DC) | 830 V DC | Max continuous; B6C topology |
| Output Current (DC, Rated) | 2600 A | Continuous at 0–40 °C, forced‑air cooled |
| US‑Rating Current (DC) | 1876 A | UL/CSA compliant rating for North America |
| Overload Current | 3900 A | 1.5 × In, for 60 s (cyclic duty) |
| Power Loss (Approx.) | ~12 kW | At rated armature current |
| Typical DC Motor Power | Up to 2158 kW | At 830 V DC / 2600 A |
2. Electrical Ratings (Field Supply)
| Parameter | Value | Notes |
|---|---|---|
| Input Voltage | 460 V AC (1‑phase) | Derived from main supply |
| Output Voltage (DC) | 375 V DC | Max continuous |
| Output Current (DC, Rated) | 85 A | Fully controllable rectifier |
| Control Type | Closed‑loop current control | For separately excited DC motors |
3. Control Power Supply
| Parameter | Value | Notes |
|---|---|---|
| Voltage | 190–230 V AC (1‑phase) | −25% / +15% tolerance |
| Rated Current | 2 A | 35% overload for 1 min |
| Frequency | 50/60 Hz | ±5% tolerance |
| Isolation | Reinforced isolation | Between control and power circuits |
4. Performance & Control
| Parameter | Value | Notes |
|---|---|---|
| Speed Control Stability (Encoder) | Δn = 0.006% of rated speed | Closed‑loop with incremental encoder |
| Speed Control Stability (Tacho) | Δn = 0.1% of rated speed | Closed‑loop with tachogenerator |
| Current Control Accuracy | ±0.5% of rated current | Static, closed‑loop |
| Response Time (Current Loop) | < 1 ms | Typical, for fast torque control |
| Control Modes | Speed, torque, current, voltage | Parameterizable via OP1S or Drive‑Monitor |
| Auto‑Optimization | Yes | For speed/current controllers and field control |
| I/O Interfaces (Standard) | 4 analog inputs, 2 analog outputs, 8 digital inputs, 4 digital outputs | Expandable with option modules |
| Communication (Optional) | PROFIBUS DP, SIMOLINK, CAN‑BUS, USS | Requires additional option boards |
5. Mechanical & Environmental
| Parameter | Value | Notes |
|---|---|---|
| Protection Class | IP20 | Enclosure (electronics); power section IP00 |
| Ambient Temperature (Operation) | 0–40 °C | At full rating; derate 1% per °C above 40 °C (up to 50 °C) |
| Storage/Transport Temperature | −25 to +70 °C | No condensation |
| Humidity | 5–95% RH | Non‑condensing; 40 °C at 90% RH |
| Altitude | ≤ 1000 m | Derate 1% per 100 m above 1000 m (up to 2000 m) |
| Cooling Method | Forced air | Built‑in cooling fans |
| Weight (Approx.) | 250–280 kg | Complete unit (power + control) |
| Dimensions (H×W×D, Approx.) | 2000 × 800 × 600 mm | Typical for 6RA70 high‑power frame |
6. Safety & Compliance
| Parameter | Value |
|---|---|
| Safety Standards | EN 60204‑1, EN 61800‑5‑1, UL 508C |
| EMC Compliance | EN 61800‑3 (Category C2), EN 55011 |
| Isolation Voltage | 4 kV AC (power/control), 2 kV AC (field/control) |
| Short‑Circuit Protection | Yes (electronic + fast fuses) |
| Overvoltage Protection | Yes (MOV + active clamping) |
| Undervoltage Protection | Yes (control power monitoring) |
| Thermal Protection | Yes (thyristor + heatsink + motor PTC) |
7. Software & Diagnostics
| Feature | Details |
|---|---|
| Software Version | V2.0 (base); upgradable via flash EPROM |
| Diagnostics | Extensive fault logging, real‑time status, oscilloscope function |
| Technological Functions | Sequencer, setpoint ramps, PID control, tension control, skip speeds |
| Parameter Storage | Non‑volatile memory (EEPROM); backup/restore via Drive‑Monitor |
Key Notes
- Single‑Quadrant Operation: Supports motoring only (forward direction); no regenerative braking.
- Ultra‑High Power: Rated for 2600 A armature / ~2158 kW DC motor, designed for heavy‑duty industrial main drives.
- 690 V Class: Optimized for high‑voltage industrial power systems, reducing line current and cable size.
- Successor: 6RA8097-4KS22-0AA0 is a modern 1‑quadrant drive with similar ratings, improved efficiency, and advanced communication options (PROFINET).
