SK10T - Variable speed drive - LEROY SOMER

LEROY SOMER SK10T variable frequency drive - DIGIDRIVE SK

The reference frequency drive SK10T is part of the DIGIDRIVE SK range offered by LEROY SOMER. Designed to drive asynchronous motors, it implements sensorless flux vector control, suitable for common speed variation needs in industrial environments. This device is aimed at maintenance managers, automation engineers and integrators looking for a reliable solution to stabilise processes, optimise energy consumption and extend the service life of motor drives. The DIGIDRIVE SK series is known for its simple setup, compactness and compatibility with existing automation architectures. In workshops where continuity of service is a priority, the SK10T facilitates like-for-like replacement or integration during gradual modernisation, while ensuring precise motor control, controlled acceleration and suitable protection of downstream mechanical components.

Technical specifications

• Référence constructeur : SK10T
• Gamme : DIGIDRIVE SK
• Constructeur : LEROY SOMER
• Type : Variateur électronique de vitesse pour moteur asynchrone
• Tension d'alimentation : AC monophasée ou triphasée selon version, 50 ou 60 Hz
• Puissance nominale : selon configuration au sein de la gamme DIGIDRIVE SK, à sélectionner d’après la plaque moteur et le cycle de charge
• Courant de sortie nominal : dépend de la variante, dimensionné pour le moteur associé et le service requis
• Tension de sortie : AC triphasée variable, adaptée au pilotage de moteurs asynchrones
• Mode de commande : Sensorless flux vector control, open-loop regulation
• Fréquence de découpage : paramétrable dans les limites prévues par la série
• Interface opérateur : clavier local et outils de mise en service du constructeur selon options

Overview of the DIGIDRIVE SK range

The DIGIDRIVE SK series groups AC drives intended for driving asynchronous motors in speed variation and torque management applications. The sensorless vector control architecture provides a controlled dynamic response without a sensor, with satisfactory torque performance for the majority of discrete and continuous processes. The emphasis is on simple integration, a clear I/O logic and compatibility with industrial site maintenance practices. The range has been widely deployed in conveying, packaging, food processing, logistics and ventilation sectors, where regulation accuracy, robustness and easy replacement are major decision criteria.

• High-efficiency speed variation : stable regulation, adjustable acceleration and deceleration ramps, reduced mechanical jolts and energy optimisation at partial load.
• Simplified integration : accessible terminal strip, methodical parameterisation, compatibility with PLC-controlled architectures and coexistence with servo drives when required.

The SK10T follows this approach, favouring rational commissioning and process stability. It is suitable for applications where open-loop vector control is sufficient to guarantee production quality and drive protection, without adding an encoder.

Industrial applications

The SK10T integrates into many production and utility environments where speed modulation brings measurable operational gains and improved equipment availability.

• Conveying and material handling : driving belts, rollers and accumulation tables, simple synchronization between sections.
• Pumps and ventilation : flow and pressure adjustment, reduction of direct starts and hydraulic stress.
• Packaging : speed control for unwinders, rewinders and dosing units with throughput constraints.
• Food and consumer goods : processing lines, machine feed conveyors, mixers.
• Textile and paper and board : drive sections requiring controlled ramps and torque stability at variable speed.

Integration and communication

The SK10T connects easily to automation systems via its digital and analog inputs and outputs. The speed setpoint can be provided by a potentiometer, an analog signal or via a supervisory system, while discrete signals handle start, stop, rotation direction and presets. Optional communication cards, when available in the range, enable data exchange over fieldbus for diagnostics, parameter adjustment and integration into cells controlled by PLCs or numerical control systems. The chosen topology will depend on the on-site standard and supervision requirements.

Commissioning is performed using the local keypad or the manufacturer's parameterisation software tool, facilitating access to basic functions and advanced settings. Typical start-up parameters include adapting to the motor nameplate, defining ramps, frequency limits and protections, in accordance with safety practices and installation standards.

Availability and warranty

The LEROY SOMER SK10T frequency drive is offered by Standard Exchange Industry as supply, exchange unit or repair, depending on the condition of your installation and lead times. Each unit supplied is bench-tested and delivered with a contractual warranty. Shipping is arranged within 24 to 72 hours to over 120 countries to minimise your line downtime. Our technical teams support you to verify electrical and mechanical compatibility, identify the version suited to the motor and confirm key parameters before restart. In case of obsolescence or supply interruption, a substitute from the same range or an equivalent may be proposed, with integration support to secure the on-site transition.