SKBD200150 - Variable speed drive - CONTROL TECHNIQUES

Control Techniques SKBD200150 frequency inverter, Commander SK

The frequency inverter SKBD200150 is part of the Commander SK series from Control Techniques and is designed to control induction asynchronous motors. Intended for general industrial applications, this range emphasises quick commissioning, reliable operation and a compact footprint for DIN rail or panel mounting. The SKBD200150 offers speed control in sensorless vector mode or V/f, meeting the requirements of a wide spectrum of process equipment, from conveyors and light handling to pumps and fans. Configuration is performed via a local keypad and clearly structured internal parameters. The analog and digital input/output terminals allow straightforward control by pushbuttons, potentiometers and 0-10 V or 4-20 mA signals depending on configuration, as well as smooth integration with a programmable logic controller. The compact design and optimised cooling of the Commander SK family simplify integration in industrial environments while ensuring reliable continuous operation.

Technical specifications

• Manufacturer reference : SKBD200150
• Range : Commander SK
• Manufacturer : Control Techniques
• Type : Compact variable speed drive for AC asynchronous motor
• Supply voltage : according to Commander SK series configuration, consult documentation and nameplate
• Rated power : depends on the model within the series, refer to manufacturer specifications
• Rated output current : variable depending on configuration, check the dedicated datasheet
• Output voltage : three-phase PWM, 0 Hz to nominal frequency, value according to supply and model
• Control mode : sensorless vector or V/f (Volt/Hertz)
• Switching frequency : configurable according to the series, details in the user manual
• Cooling : fan management depending on size in the range, two-speed fan control possible

Overview of the Commander SK range

The Commander SK series is designed to provide reliable control of asynchronous motors with a simplified architecture. The positioning targets installations where speed stability, simple wiring and fast maintenance are priorities. Drives in this family are characterised by a consistent set of parameters, clearly identified terminals and basic functions suited to continuous processes. The control logic and internal functional blocks meet the requirements of many pieces of equipment while limiting implementation complexity. This range integrates easily into an existing panel, including as a replacement for obsolete equipment, and is suitable for maintenance teams looking for a proven, well-documented drive compatible with common industrial practices.

• V/f mode : simple, robust speed control suited to variable-torque loads such as fans and pumps, with minimal setup.
• Sensorless vector : improved low-speed stability and load responsiveness, relevant for conveyors, palletisers and mechanisms requiring more constant torque.

The SKBD200150 follows this philosophy by combining compactness and essential features. It is suitable where continuity of service, energy management through speed adjustment and day-to-day operational simplicity are priorities.

Industrial applications

This Control Techniques frequency inverter fits into many automation architectures. Typical use cases include open-loop speed control, management of acceleration and deceleration ramps, and setpoint selection via logical inputs. It effectively meets the needs of production lines and industrial utilities.

• Conveying and light handling : precise belt speed adjustment, adaptation to load variations and soft starts.
• Centrifugal pumps : flow adjustment by speed, reduction of hydraulic shocks, energy optimisation at partial load.
• Ventilation and extraction : control of variable-torque fans, improved acoustics and consumption over extended cycles.
• Packaging : simple module synchronisation, selection of predefined speeds via digital inputs.
• Food industry and intralogistics : drive for belts, hoppers and screw conveyors with reliable continuous control.

Integration and communication

Integration of the SKBD200150 is achieved via analog and digital inputs/outputs enabling start, stop, direction, setpoint selection and status feedback functions. The speed reference can be provided by a potentiometer, 0-10 V or 4-20 mA signal depending on the analogue terminal configuration. Commissioning is carried out using the local keypad and a hierarchy of parameters, described in the user manual dedicated to the Commander SK series. This approach enables quick familiarisation for maintenance and process teams, with detailed documentation for fine tuning in operation.

For larger automation architectures, integration with a programmable logic controller can rely on the standard I/O or optional communication modules from the family, depending on the installed environment. Local supervision functions, timers and internal protections in the range contribute to service continuity. Cooling is optimised by design and, depending on the drive size within the Digidrive/Commander SK family, a two-speed fan can be controlled to limit wear and noise under partial load. The overall design provides a robust basis for controlling asynchronous motors without adding a speed sensor while remaining compatible with common industrial panel requirements.

Availability and warranty

Standard Exchange Industry offers the reference SKBD200150 as new supply, exchange unit or repair depending on the condition of your installation. Each supplied drive is bench-tested and benefits from a warranty in line with our service, with shipping within 24 to 72 hours to over 120 countries. Our technical teams assist you to validate electrical and functional compatibility with your asynchronous motor, specify the desired control configuration, and secure the recommissioning of your line. In case of obsolescence or production discontinuation, we identify a replacement solution within the Commander SK range or an equivalent alternative to reduce downtime and preserve your operational performance.