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    SL Series

    Analogue 2Q / 4Q DC Drives delivering output current up to 330A to control motors up to 145kW

    Economical, compact and reliable DC motor control ideal for OEMs

    A range of analogue 2Q / 4Q DC Drives, you can use the SL Series to control DC motors up to 145kW, with all models available from stock.

    The SL Series comprises a range of analogue 2Q / 4Q DC Drives delivering output current up to 330A to control motors up to 145kW. For users who prefer or require analogues control loops, the SL Series provides an economical, compact and reliable control platform. The SL/X range provides 2Q / 4Q operation across 11 models from 5kW – 145kW output power. The SLE Series is a single direction 2Q DC Drive with 4 models from 14kW – 44kW output power.

    Compact, Reliable & Economical

    The SLE drive has been specifically designed at a cost and size to benefit OEMs without any compromise in specification, reliability or performance.
    Its compact footprint (250mm x 204mm) enables additional savings and ensures easy integration within new designs or trouble free installation when retrofitting

    Energy Efficient

    The 4Q models improve your energy efficiency by regenerating energy into the mains supply whilst under braking. The energy invested accelerating the load mass is recovered when braking. No dissipation of energy in wasteful braking resistors. With fully isolated control electronics and a wealth of I/O, the SL/X is easy for you to integrate with other drives and equipment. The SL/X has a built-in field weakener for extended speed range to allow you greater control of high motor speed applications.

    Other Features & Benefits


    2 and 4 Quadrant versions available
    Available from 5KW to 145KW
    Extra 50% peak torque for rapid acceleration or shock loads
    Zero reference interlock facility ideal for extruder applications
    Numerous alarms for enhanced drive and motor protection
    Torque control input for basic winding or tension control, with overspeed limiting
    Output signals for easy display of motor speed and load
    Switched maximum current ranges for easy matching to motor current rating
    Compact size, saves panel space and makes for easy retrofitting
    Ultra stable
 potentiometer reference for optimum long term speed and torque stability
    On board relay indicates zero speed and/or motor overload (and some models – stall)
    Isolated control electronics for easy connection to other drives/equipment


    Many additional input and output signals, ideal for system applications
    User adjustable:

    • Acceleration
    • Deceleration
    • Max motor speed
    • Min motor speed
    • Max motor current
    • IR compensation
    • Stability
    • Jog speed

    Adjustable field output for easy motor matching
    Built in field weakener for extended speed range
    Configurable field bridge for easy motor field voltage matching
    240V and 480V 50/60HZ AC operation
    User selectable wide AC supply range, 380 – 480V or 200-240V

    High accuracy armature voltage feedback mode eliminates the need for additional tacho
    Automatic economy field mode protects motors in cold climates
    PLC compatible input and output signals
    Field current input for constant horsepower applications
    Delayed field quench for secure emergency stopping
    Switch selectable feedback calibration – no component changes
    Switch selectable Tach
or Armature voltage feedback
    Numerous inputs and outputs for complex system applications
    S ramp facility
    4-20mA and 0-20mA loop input option as standard


    Where DC Digital Drives are used

    Sprint Electric Guide Where DC Digital Drives are used

    SLE product datasheet

    English version manual for the SLE

    SLX product datasheet

    Datasheet for SL/X range of analogue DC drives

    PLX JLX Three Phase catalogue Sprint Electric

    SLE product manual

    English version manual for the SLE product manual

    SLX product manual

    English version manual for the SLX product manual

    SL Manual

    Manual for SL analogue DC drives

    Product Showcase

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