Frequency Converter SD2B plus

The frequency converter SD2B plus allows sensorless operation of low-voltage asynchronous and synchronous motors with speeds up to 120,000 rpm, as well as control with TTL encoders.

Due to this motors can be operated speed-controlled and torque-controlled even from speed zero. The safety function Safe Torque Off (STO) is integrated as standard in the device to allow low-cost realization of the steadily increasing demands towards machine safety.

The NRTL/CSA certified devices are easily integrated into systems for the US market with no additional approvals needed.

Manuals, Software, Certificates, Tutorials

Highlights

Master-Slave-Operation

Function:
Synchronization of several SD2B plus via TTL encoder inputs and outputs.

Advantage:
Autarkic high-precision synchronization of several SD2B plus frequency converters without external control components.

Benefit:
Lower system costs.
Integrated Logic Voltage Supply

Function:
NRTL/CSA certified.

Advantage:
Easier integration into machines for the North American market.

Benefit:
Lower costs, as no additional approvals are necessary
Parameterization via USB

Function:
Logic voltage supply via USB interface.

Advantage:
Parameterization of SD2B plus without connected voltage supply is possible via the USB interface, which allows pre-configuration of devices outside the machine.

Benefit:
Lower system costs.

The space marvel

The IP20 housing of the SD2B plus impresses with a reduced overall height of only 25 mm. The particularly compact design enables simple and flexible integration of the device. In addition to two TTL encoder inputs and outputs, there are five digital inputs/outputs each, an analogue setpoint input and a USB interface for easy parameterisation. All control sequences can also be displayed via the serial bus connections with CAN or RS232 implemented as standard.

[Translate to Englisch:] Frequenzumrichter SD2plus von Sieb&Meyer

The Interfaces of Frequency Converter SD2B plus

USB connection, parameterization, diagnosis and operation
Analog reference interface +/-10 V
Safety integrated "STO": Restart lock to meet category 4/PL e according to EN ISO 13849-1:2015 and EN 61508:2010 SIL3
5 digital inputs and 5 digital outputs as well as 24 V DC logic power supply
RS232 / CAN interface
2 TTL encoder inputs and outputs
2 TTL encoder inputs and outputs / BiSS-Renishaw
Motor connection
DC supply
SERVOLINK

Drive Functions and Safety Functions

SVC

U/f PWM

HSPWM

Servo

STO

Software for Initial Operation and Parameterization: drivemaster2

The oscilloscope function allows optimization of the axes in the machine via the drive-setup-tool without additional measuring equipment.

The clear design of the software allows intuitive parameterization via graphics and block diagrams. The „Parameter-Wizard“ guides the user step-by-step through the system configuration and allows intuitive setup of the device via help messages and comments.

Technical Specifications of Frequency Converter SD2B plus

Device type	Rated power¹⁾	Rated current	Peak current/time	Max. output voltage¹⁾	HxWxD (mm)	Weight	Cooling
Device with housing (SD2B plus) - 1 x 24...48 VDC supply voltage
0362171DA1x ²⁾	740 VA	13 A_rms	15.8 A_rms/10 s	3 x 33 VAC	165 x 120 x 25	0.55 kg	Air
Device with housing (SD2B plus) - 1 x 24...80 VDC supply voltage
0362171DB1x ²⁾	940 VA	10 A_rms	12 Arms/10 s	3 x 55 VAC	165 x 120 x 25	0.55 kg	Air

1) Rated power and max. output voltage for mains voltage/supply voltage (in italic)
2) NRTL/CSA certified

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 dressing applications, it is essential to keep the spindle temperature low: a temperature increase in the spindle causes a longitudinal growth and therefore a shift of the tool position.

Dressing
Small CAD/CAM routing machines are used, for example, in dental laboratories for jewelry making or engraving works as well as for producing advertising displays.

Dental CAD/CAM
Polygon scanners are based on special optics and operate, for example, sorting machines. Up to now, manufacturers had to install encoders to run these scanners with a high speed stability.

Polygon Scanners
Machines for direct imaging, printing and laser processing apply highly complex "processing heads" that are controlled by a high-performance PC and the related software.

Direct Imaging, 3D Printing, Laser Processing

News

04/24/2025 Frequency Converter SD2B plus

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…

10/18/2023 Frequency Converter SD2B plus

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…

06/20/2023 Frequency Converter SD2B plus

Highly Precise Movement of up to 8 Axes

The drive system MC2 by SIEB & MEYER can precisely control the motion tasks of up to eight axes in real-time. The multichannel system comprises the…

Feel free to contact us

Name *

Company *

Email *

Telephone *

Forward your message to *

Support CNC

Support Drives

Sales

Your message *

Enter the character string shown in the picture

Enter the characters you see in the image *

I have read and accepted the privacy policy and accept it. By submitting the contact form I agree to my data being transmitted to SIEB & MEYER AG and to SIEB & MEYER AG contacting me. *

[Translate to Englisch:] Frequenzumrichter SD2B plus

Frequency Converter SD2B plus

The frequency converter SD2B plus allows sensorless operation of low-voltage asynchronous and synchronous motors with speeds up to 120,000 rpm, as well as control with TTL encoders.

The NRTL/CSA certified devices are easily integrated into systems for the US market with no additional approvals needed.

Highlights

Master-Slave-Operation

Function: Synchronization of several SD2B plus via TTL encoder inputs and outputs.
Advantage: Autarkic high-precision synchronization of several SD2B plus frequency converters without external control components.
Benefit: Lower system costs.

Integrated Logic Voltage Supply

Function: NRTL/CSA certified.
Advantage: Easier integration into machines for the North American market.
Benefit: Lower costs, as no additional approvals are necessary

Parameterization via USB

Function: Logic voltage supply via USB interface.
Advantage: Parameterization of SD2B plus without connected voltage supply is possible via the USB interface, which allows pre-configuration of devices outside the machine.
Benefit: Lower system costs.

The space marvel

The IP20 housing of the SD2B plus impresses with a reduced overall height of only 25 mm. The particularly compact design enables simple and flexible integration of the device.

In addition to two TTL encoder inputs and outputs, there are five digital inputs/outputs each, an analogue setpoint input and a USB interface for easy parameterisation. All control sequences can also be displayed via the serial bus connections with CAN or RS232 implemented as standard.

The Interfaces of Frequency Converter SD2B plus

USB connection, parameterization, diagnosis and operation
Analog reference interface +/-10 V
Safety integrated "STO": Restart lock to meet category 4/PL e according to EN ISO 13849-1:2015 and EN 61508:2010 SIL3
5 digital inputs and 5 digital outputs as well as 24 V DC logic power supply
RS232 / CAN interface
2 TTL encoder inputs and outputs
2 TTL encoder inputs and outputs / BiSS-Renishaw
Motor connection
DC supply
SERVOLINK

Drive Functions and Safety Functions

SVC

U/f PWM

HSPWM

Servo

STO

Software for Initial Operation and Parameterization: drivemaster2

The oscilloscope function allows optimization of the axes in the machine via the drive-setup-tool without additional measuring equipment.

Technical Specifications of Frequency Converter SD2B plus

Device type	Rated power¹⁾	Rated current	Peak current/time	Max. output voltage¹⁾	HxWxD (mm)	Weight	Cooling
Device with housing (SD2B plus) - 1 x 24...48 VDC supply voltage
0362171DA1x ²⁾	740 VA	13 A_rms	15.8 A_rms/10 s	3 x 33 VAC	165 x 120 x 25	0.55 kg	Air
Device with housing (SD2B plus) - 1 x 24...80 VDC supply voltage
0362171DB1x ²⁾	940 VA	10 A_rms	12 Arms/10 s	3 x 55 VAC	165 x 120 x 25	0.55 kg	Air

1) Rated power and max. output voltage for mains voltage/supply voltage (in italic)
2) NRTL/CSA certified

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 dressing applications, it is essential to keep the spindle temperature low: a temperature increase in the spindle causes a longitudinal growth and therefore a shift of the tool position.

Dressing
Small CAD/CAM routing machines are used, for example, in dental laboratories for jewelry making or engraving works as well as for producing advertising displays.

Dental CAD/CAM
Polygon scanners are based on special optics and operate, for example, sorting machines. Up to now, manufacturers had to install encoders to run these scanners with a high speed stability.

Polygon Scanners
Machines for direct imaging, printing and laser processing apply highly complex "processing heads" that are controlled by a high-performance PC and the related software.

Direct Imaging, 3D Printing, Laser Processing

About Sieb & Meyer

SIEB & MEYER AG - Drive and control solutions of the latest generation

SIEB & MEYER was founded in 1962 and is a successful company in the field of industrial electronics. With around 300 employees worldwide today, we develop and manufacture control technology and drive electronics. Our core technologies include controllers for mechanical engineering and automation technology, servo amplifiers for a wide range of drives and frequency converters for high-speed motors and generators.

Contact

SIEB & MEYER AG
Auf dem Schmaarkamp 21
D-21339 Lüneburg
Phone: +49 4131 203 0
Fax: +49 4131-203 2000

You can find all sales contacts at: www.sieb-meyer.com/contact/sales

You can find all agencies and partners at: www.sieb-meyer.com/contact/offices-and-sales-partners