
Frequency Converter SD2M Turbo
Standard converters in the higher power classes typically use the well-known technology of two-level pulse width modulation (PWM) with max. 8 kHz switching frequency. In most high-speed applications, this requires additional components such as LC filters or chokes to minimize the additional losses in the engine.
Highlights
Technology/ System-Property | SD2M Three-level PWM | Standard converter Two-level PWM with motor choke | Standard converter Two-level PWM with LC filter |
---|---|---|---|
Low weight | ✓ | X | X |
Small installation space | ✓ | X | X |
No risk of resonance effects | ✓ | ✓ | X |
Total costs | ✓ | X | X |
Motor Currents by Comparison



Good to Know
- Currently available power classes from 100 to 500 kVA, with up to 800 Arms rated current
- Liquid cooling as standard (water-based), air cooling on request
- NRTL/CSA certified.
- Reducing the switching PWM amplitude by 50 % leads to very low insulation stress of the motor - even when using long motor cables (see diagram below)
- Optional DC voltage supply for active magnetic bearings via internally fused terminals (intermediate DC circuit)
- Designed for 100 % load 24/7
- All power components are designed for 10 years continuous operation at nominal load
- Designed for worldwide 3-phase supply networks - also IT grids without grounding
- Efficient software drivemaster2 for parameterization and diagnosis
- Customized solutions can be realized
- 3C3 protective coating of the PCBs for operational reliability in aggressive environments

The Interfaces of Frequency Converter SD2M for Turbo Applications
- USB connection, parameterization, diagnosis and operation
- RS232 / RS485 / CAN interface / Modbus
- 2 analog reference value interfaces: +/-10 V, 2 analog outputs: 0 to 10 V
- Universal Motor Encoder Interface: Hall sensor, linear Hall sensor, magnetoresistive sensor, NAMUR sensor (pulse generator), Sin/Cos encoder
- 9 digital inputs and 5 digital outputs
- Liquid cooling
- Safety integrated "STO": Restart lock to meet category 4/PL e according to EN ISO 13849-1:2015 and EN 61508:2010 SIL3
- Motor connection
- 2 TTL encoder inputs and outputs
- Power supply
Drive Functions and Safety Functions
SVC
V/f PWM
Servo
LI
STO
Software for Initial Operation and Parameterization: drivemaster2

Parameterization
- Tree-type structure
- Block diagrams
- Graphics
- Interactive help messages
- Comments
- „Parameter-Wizard“

Operation
- Without higher-ranking control
- Visualized reference and actual values
- Error and status messages

Diagnosis
- 4-channel oscilloscope
- Zoom functions
- Trigger functions
- Long-term recording function
- Measurements can be saved
- Diagnosis of the inputs and outputs
- Bus monitor
Technical Specifications SD2M Turbo
with 3-phase AC Mains Voltage without Break Chopper
Device type | Rated power1 | Rated current | Max. output voltage1 | HxWxD (mm) | Weight | Cooling |
---|---|---|---|---|---|---|
Compact devices - 3 x 200...480 VAC mains voltage | ||||||
0369171AF0200 | 100 kVA | 165 Arms | 3 x 410 VAC | 685 x 388 x 188 | 30 kg | Water 2) 4) |
0369173AF0200 | 150 kVA | 255 Arms | 3 x 410 VAC | 771 x 439 x 207 | 43 kg | Water 2) 4) |
0369173BF0200 | 190 kVA | 310 Arms | 3 x 410 VAC | 771 x 439 x 207 | 43 kg | Water 2) 4) |
0369175AF0100 | 300 kVA | 480 Arms | 3 x 410 VAC | 1317 x 326 x 498 | 94 kg | Water 2) 3) |
0369175BF0100 | 396 kVA | 630 Arms | 3 x 410 VAC | 1296 x 424 x 359 | 94 kg | Water 2) 3) |
0369276BF0200 | 500 kVA | 800 Arms | 3 x 410 VAC | 1478 x 353 x 596 | 136 kg | Water 2) 3) |
1) Rated power and max. output voltage for mains voltage/supply voltage (in italic)
2) Aluminum cooling pipes
3) Copper cooling pipes
4) Air-cooled versions and versions with other cooling pipe materials on request
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