SK1ML - Variable speed drive - LEROY SOMER

LEROY SOMER SK1ML Variable Frequency Drive - SK Series

The SK1ML frequency inverter belongs to the SK series from LEROY SOMER, a range of drives recognised in industry for precise control of asynchronous motor speed. This reference is intended for maintenance teams, system integrators and OEMs needing a reliable solution to operate or replace an existing drive, particularly during obsolescence management or upgrades. Classified under Variable Speed Drives, the SK1ML targets process stability, reduction of harsh start torque events and energy optimisation by adjusting output frequency. The SK series is designed for logical cabinet installation, compatibility with existing automation architectures and simplified maintenance. Standard Exchange Industry offers this reference as reconditioned supply or exchange service, with bench testing and traceability to secure a rapid restart of your lines.

Technical specifications

• Manufacturer reference : SK1ML
• Range : SK series
• Manufacturer : LEROY SOMER
• Type : Variable speed drive for three-phase asynchronous motor control
• Supply voltage : according to series configuration, versions suited to standard industrial networks
• Rated power : varies by model within the series, suitable for light-duty to continuous-process applications
• Output voltage : three-phase AC at variable frequency, configurable to match the motor
• Control mode : standard regulation modes available depending on options, focused on speed and torque control
• I/O functions : digital and analog inputs according to configuration, for local commands and setpoints
• Communication : compatible with industrial fieldbuses via optional cards or modules depending on the series
• Protection rating : suitable for cabinet mounting, dependent on the enclosure and the environment
• Cooling : thermal management designed for continuous duty, to be validated according to integration

Overview of the SK series

The SK series from LEROY SOMER groups variable frequency drives designed for motor control across varied processes, from conveying to fluid handling. Widely used on production floors and industrial utilities, this range emphasises simple wiring, clear essential parameters and the ability to add modules according to station needs. The aim is to provide a homogeneous platform enabling standardisation of spare parts and continuity of service, even when specific references become difficult to source. The modularity of the range allows selection of control interfaces, appropriate I/O and the addition of application functions to ease commissioning and reproduce settings between identical lines.

• Compact modules for control cabinets : intended for DIN-rail or plate integration, with accessible terminal blocks and clear labelling to reduce downtime during replacement.
• Scalable configurations : possible addition of communication, I/O and application function options according to process needs, following a logic of streamlined maintenance.

The SK1ML reference fits this standardisation approach. It is suitable for installations where speed holding, gradual acceleration and compatibility with a programmable logic controller are selection criteria. The series-based approach allows aligned replacements and retrofits without heavy process requalification, while keeping maintenance teams familiar with parameter settings.

Industrial applications

This LEROY SOMER frequency drive is used across many utility functions and process machines. The SK series covers needs from simple setpoint regulation via analog input to integration within digital control architectures using digital inputs, up to fieldbus links when supervision is required. The consistency of the range simplifies stock management and operator training on a common reference.

• Conveying and handling : drive control for belts, rollers and transfers with configurable acceleration ramps to limit jolts.
• Pumping and ventilation : flow adjustment by frequency variation to reduce energy consumption and noise.
• Mixing and agitation : maintaining a constant speed for product quality stability.
• Packaging : synchronization of mechanical sub-assemblies with setpoints from the controller.
• Textile and winding : progressive control to limit mechanical tension on materials.

Integration and communication

The SK1ML is deployed in cabinets with standardised wiring. It accepts setpoints via analog and digital inputs depending on configuration, and can accept the series' communication modules for integration with common industrial fieldbuses when the architecture requires it. This modular approach lets the drive align with the existing ecosystem, whether driven by a programmable logic controller or local control. Commissioning relies on a readable parameter structure, with access to key ramp, limit and motor protection functions. Local diagnostics by codes and saving of settings support rapid interventions during emergency replacements.

For modernisation or exchange services, it is recommended to verify the motor type, expected rated power, available supply voltage and EMC requirements of the cabinet. Proper shielding, thermal management and protection of power cables contribute to overall reliability. For higher-dynamic applications or those requiring torque accuracy, the series ecosystem can offer configurations oriented to servo drive, to be assessed on a case-by-case basis.

Availability and warranty

The LEROY SOMER variable speed drive SK1ML is offered by Standard Exchange Industry as reconditioned supply or via exchange service, bench-tested and delivered with warranty. Depending on service, shipment is ensured within 24 to 72 hours to over 120 countries tosecure production restarts. Alternatively, a repair service is available, including diagnosis, replacement of faulty components and functional testing. Our technical team assists you to confirm reference compatibility with your motor and installation, verify required options and prepare a controlled replacement. The objective is to minimise downtime, ensure continuity of key settings and guarantee full traceability of tests performed before shipment.