Frequency Converter SD2M DC

The frequency converters of series SD2M DC convince by their maximum output, little need for space, reduced system costs and high efficiency. The devices are designed for complex automation tasks in high-speed applications and allow use of synchronous and asynchronous motors.

Sensorless applications as well as applications with speed sensor can be realized easily. The high-dynamic vector control combined with highest speeds offers a whole new range of applications.

Manuals, Software, Certificates, Tutorials

Highlights

Three-Level Technology

Function:
The output stages of SD2M DC are based on a three-level technology and provide rotating field frequencies up to 2,000 Hz with switching frequencies of 16 kHz.

Advantage:
Reduced motor losses combined with minimum efforts for motor filters and motor chokes as well as low interfering radiation and insulation stress.

Benefit:
Low system costs over the whole product life cycle.
Efficiency

Function:
The devices reach efficiencies of up to 98 %.

Advantage:
The high efficiency of the devices ensures optimal system efficiencies and reduces cooling requirements.

Benefit:
Lower energy costs at maximum system output.
DC Supply

Function:
The SD2M devices with DC supply can be operated with active front-end power supply unit.

Advantage:
Fast acceleration and deceleration processes at high energy efficiency.

Benefit:
Low energy costs and highest productivity.

The Powerful One

SIEB & MEYER has developed the frequency converter SD2M DC using the three-level tehnology to significantly reduce PWM-related rotor losses.

In addition to the SD2M Turbo devices for 3-phase mains supply, devices with DC supply are also available. These devices allowe to optionally operate SD2M DC with a power supply unit capable of recovering energy. This way applications with a process-related repeated braking operation can take advantage of the benefits of the three-level technology.

The Interfaces of Frequency Converter SD2M DC

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
DC supply
EtherCAT (CoE)

Drive Functions and Safety Functions

SVC

V/f PWM

Servo

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 of Frequency Converter SD2M DC with DC Supply Voltage

Voltage class 500 VDC
Input Voltage Range 255..750 VDC

Device type	Supply voltage	Output power (kW)	Output apparent power (kVA)	Output current (A)	Max. output current (A)	HxWxD (mm)	Weight	Cooling
0369371AF0200	500 VDC	100 kW	100 kVA @ 16 kHz	165 A @ 16 kHz	165	685 x 388 x 188	30 kg	Water ¹⁾
0369373AF0200	500 VDC	150 kW	150 kVA @ 16 kHz	255 A @ 16 kHz	255	771 x 439 x 207	43 kg	Water ¹⁾
0369373BF0200	500 VDC	190 kW	190 kVA @ 16 kHz	310 A @ 16 kHz	310	771 x 439 x 207	43 kg	Water ¹⁾
0369375AF0100	500 VDC	285 kW	285 kVA @ 16 kHz	480 A @ 16 kHz	480	1317 x 336 x 489	94 kg	Water ²⁾
0369375BF0100	500 VDC	365 kW	365 kVA @ 16 kHz	630 A @ 16 kHz	630	1317 x 336 x 489	94 kg	Water ²⁾
0369376BF0200	500 VDC	490 kW	490 kVA @ 16 kHz	800 A @ 16 kHz	800	1478 x 353 x 596	136 kg	Water ¹⁾

1) Aluminum cooling pipes
2) Copper cooling pipes

Applications

High-speed spindles are the key components of a machine tool. Only when operated in an optimal way, the desired machining accuracy, productivity and service life of the whole machine is guaranteed.

Drilling, Routing
For motor-driven and generator-driven high-speed applications with high output powers the available standard converter solutions are not sufficient.

Flywheel, ORC and Gas Expansion Turbines

News

04/24/2025 Frequency Converter SD2M

A Drive Controller for All Purposes

One device for two worlds – this sounds like a compromise but has been reality at SIEB & MEYER AG for more than two decades. The drive controllers by…

08/05/2024 Frequency Converter SD2M

The Best of Two Worlds

Instead of application-specific frequency converters and servo drives, SIEB & MEYER AG has been offering its customers all-purpose drive controllers…

10/18/2023 Frequency Converter SD2M

Frequency Converters: Past – Present – Future

At the end of the 1960s, the first series-produced frequency converters were launched on the market – and began their triumphant advance. Today they…

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[Translate to Englisch:] Frequenzumrichter SD2M DC