Product Overview: SINAMICS DCM (DC Master), 2‑quadrant (2Q) DC drive with fully‑controlled B6C bridge; 3‑phase 830 V AC input, 1000 V DC armature output, integrated field rectifier. High‑power drive for heavy‑duty industrial DC motor applications.
1. Armature Circuit Ratings
| Parameter | Value | Notes |
|---|---|---|
| Input Voltage (3‑phase AC) | 830 V AC | ±10% tolerance; 50/60 Hz (45–65 Hz) |
| Input Current (RMS, Rated) | 1245 A | At rated output, 830 V AC input |
| Output Voltage (DC) | 1000 V DC | Max continuous; B6C topology |
| Output Current (DC, Rated) | 1500 A | Continuous at 0–40 °C, forced‑air cooled |
| Overload Current | 1875 A | 1.25 × In, for 60 s (cyclic duty) |
| Power Loss (Approx.) | ~30 kW | At rated armature current |
| Typical DC Motor Power | Up to 1500 kW | At 1000 V DC / 1500 A |
| Short‑Circuit Current | Symmetrical RMS ≤ 65 kA | Instantaneous short‑circuit protection |
2. Field Supply Ratings
| Parameter | Value | Notes |
|---|---|---|
| Output Voltage (DC) | Max 920 V DC | Adjustable, derived from main supply |
| Output Current (DC, Rated) | 80 A | Fully controllable rectifier |
| Control Type | Closed‑loop current control | For separately excited DC motors |
| Field Overload | 100 A | 1.25 × If, for 60 s |
3. Control & Electronics Power Supply
| Parameter | Value | Notes |
|---|---|---|
| Voltage | 24 V DC | ±20% (18–30 V DC) |
| Rated Current | 5 A | For control unit, logic, and peripherals |
| Isolation | Reinforced isolation | Between control and power circuits |
4. Performance & Control
表格
| 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 BOP20/AOP30 or STARTER |
| Auto‑Optimization | Yes | For speed/current controllers and field control |
| I/O Interfaces (Standard) | 6 analog inputs, 2 analog outputs, 16 digital inputs, 8 digital outputs | Expandable with TM15/TM31 modules |
| Communication (Standard) | PROFIBUS DP | Optional: PROFINET IO, EtherNet/IP, USS |
5. Mechanical & Environmental
| Parameter | Value | Notes |
|---|---|---|
| Protection Class | IP00 | Power section; electronics IP20 |
| 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 | High‑capacity built‑in cooling fans |
| Weight | 135 kg | Complete unit (power + control) |
| Dimensions (W×H×D) | 453 × 883 × 505 mm | Heavy‑duty frame for industrial cabinets |
6. Safety & Compliance
| Parameter | Value |
|---|---|
| Safety Standards | EN 60204‑1, EN 61800‑5‑1, UL 508C |
| EMC Compliance | EN 61800‑3 (Category C3), EN 55011 |
| Isolation Voltage | 6 kV AC (power/control), 4 kV AC (field/control) |
| Short‑Circuit Protection | Electronic + fast‑acting disc fuses |
| Overvoltage Protection | MOV + active clamping + crowbar |
| Undervoltage Protection | Control power monitoring |
| Thermal Protection | Thyristor + heatsink + motor PTC/KTY |
7. Software & Diagnostics
| Feature | Details |
|---|---|
| Software Version | V1.8+ (base); upgradable via STARTER |
| 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; backup/restore via STARTER |
Key Notes
- 2‑Quadrant Operation: Supports motoring and regenerative braking in one direction; ideal for high‑power applications requiring energy feedback.
- High‑Power Design: Rated for 1500 A armature / 1500 kW DC motor, suitable for heavy industrial machinery.
- 830 V AC Supply: Optimized for high‑voltage industrial power systems (e.g., metallurgy, mining).
- Robust Construction: Heavy‑duty frame, forced cooling, and advanced protection for harsh industrial environments.
