SKB3400055 - Variable speed drive - CONTROL TECHNIQUES

CONTROL TECHNIQUES SKB3400055 frequency drive - Commander SK

The frequency drive SKB3400055 belongs to the Commander SK range from manufacturer CONTROL TECHNIQUES. Designed for robust and precise control of three-phase asynchronous motors in industrial settings, it meets the needs of operations managers, automation engineers and maintenance teams who want to secure their installations against obsolescence and reduce unplanned downtime. The Commander SK series is known for its straightforward commissioning, stable performance and ease of integration in retrofit projects, notably on conveyor lines, packaging machines, pumps and ventilation systems. Based on proven control principles and a consistent set of parameters across the range, this drive simplifies like-for-like replacement or gradual upgrades of a drive fleet without complex process requalification.

Technical specifications

• Manufacturer reference : SKB3400055
• Range : Commander SK
• Manufacturer : CONTROL TECHNIQUES
• Type : Frequency drive for asynchronous motors for cabinet mounting
• Supply voltage : according to version, check the nameplate and the installation documentation
• Rated power : depends on the configuration associated with code SKB3400055, verification on site required
• Rated output current : to be validated according to the motor and chassis installed
• Output voltage : three-phase, variable according to the frequency setpoint
• Control mode : V/Hz and sensorless vector control, availability depending on configuration
• Switching frequency : configurable within the limit specified by the chassis, to be adjusted according to the application
• Ingress protection : typically suitable for cabinet integration, subject to confirmation depending on the execution

Overview of the Commander SK range

The Commander SK series has become widely adopted in automation installations for standard drive applications requiring reliable speed and torque control. Its architecture favors ease of use, a uniform parameter logic and self-tuning features that save time during commissioning or equipment replacement. Drives in this family integrate into varied architectures, from systems controlled by a programmable logic controller to equipment with numerical control for auxiliary functions.

• Variable torque applications : management of pumps and fans with energy optimization through speed reduction, process protection via controlled acceleration and deceleration ramps.
• Constant torque applications : conveyors, winding, packaging, where speed stability and improved dynamic response enhance repeatability and production quality.

As part of this range, the SKB3400055 is suitable for line modernizations where fleet homogeneity, longevity of settings and compatibility with existing sensors and actuators are decisive selection criteria.

Industrial applications

This CONTROL TECHNIQUES drive covers a wide spectrum of installations. Thanks to its proven control laws, it stabilizes the speed of asynchronous motors taking into account load constraints and process requirements. The built-in protection features and clear parameter display support both preventive and corrective maintenance operations, with improved traceability of adjustments and updates.

• Conveyors and material handling : control of feed speeds, synchronization between sections, reduction of mechanical jolts.
• Pumps and ventilation : speed adaptation to demand, energy optimization and reduced noise at partial load.
• Packaging : control of auxiliary axes, drive rollers, dosing and insertion with stabilized throughput.
• Continuous industrial processes : control of belts, mixers, extruders requiring consistent torque holding.
• Machine tool auxiliaries : driving lubrication pumps, chip conveyors, peripheral equipment of CNC cells.

Integration and communication

Integration of the SKB3400055 into an automation architecture is achieved via standard digital and analog I/Os, with the option to add expansion modules depending on the control environment and supervision requirements. Speed reference, ramps, limits and controlled stop functions are parameter-accessible, allowing fine adaptation to the application profile. Connecting to an existing programmable logic controller can be done without altering the architecture, preserving the safety and control sequences already in place.

Commissioning can be carried out from the local keypad, by PC tool when available, or via the plant control interface. Essential parameters, such as selecting the control law (V/Hz or sensorless vector), adjusting ramps and configuring I/O signals, are set in a structured way. This approach minimizes downtime during a standard exchange replacement and reduces the risk of configuration errors. In environments requiring network communication, fieldbus solutions are available via appropriate cards, to be selected according to the drive system in place.

Availability and warranty

The CONTROL TECHNIQUES drive SKB3400055 is offered refurbished and as a standard exchange, each unit tested on a bench before shipment. Standard Exchange Industry ensures dispatch within 24 to 72 hours to over 120 countries and supports maintenance teams in identifying the reference compatible with the existing motor and cabinet. A repair service is also available to extend the lifetime of your equipment. Each service is covered by a warranty appropriate to the chosen option. To confirm electrical and mechanical compatibility, we recommend checking the nameplate of the drive and the motor, as well as the site's technical documentation. Our technical support can guide you in selecting the replacement and preparing commissioning to secure the restart of your production.