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The DC Drive product range can be used to control DC shunt and DC permanent magnet motors and offers a wider choice of variable speed DC drives than any other manufacturer. The SPRINT ELECTRIC range has over 50 models with armature current ratings up to 2250 Amps.
For higher armature currents (up to 4000 Amps) we can offer a Digital, DCstack driver unit with external thyristor stack.
Both the Analog and Digital, 1 and 4 quadrant, variable speed drives (VSD) have an internal field controller and universal speed feedback inputs (pulse encoder, tacho and armature voltage).
Analog DC Drives: The Din-rail mounted analog Series (ER 340/680/1220) is available for armature currents from 3.4A up to 12.2A in both 1 and 4 quadrant, non-isolated and isolated versions.
The panel mounted analog Series (3200i and 3600XRi) is available for armature currents from 4A up to 48A in both 1 and 4 quadrant isolated versions.
Digital DC Drives: This range is probably the most powerful drive on the market today including 2 quadrant (PL models) and 4 quadrant versions (all PLX models), internal field controller and fully programmable function blocks and soft wiring. (PL / PLX).
A number of predefined application function blocks are available as standard for winders, section control, diameter calculation, etc. Armature Current outputs are available up to 2250 Amps. The optional Fieldbus communication can be used for complete system integration.
The DC590+ Integrator Series 2 DC drive is the latest development of the range which also includes the AC690+ AC drives. It benefits from 30 years experience of designing and manufacturing drives for process line control with dedicated function blocks which simplify the implementation of applications such as sectional drive reels, winder control etc. The function block capabilities offer unparralleled flexibility in both new installations and retrofit applications. A number of common fieldbus communications options enable connectivity to a wide range of popular control networks allowing the DC590+ to be integrated in larger control systems.
Common programming, set-up and communications platform with AC690+ AC Integrator Series Ratings up to 2700A and supply voltages to 660V. Internal controlled field supply. Function blocks programming, including open and closed-loop winder control as standard DRV option with built-in contactor, fuses and blower starter.
Typical Applications • Converting machinery • Plastics and rubber processing machinery • Wire and cable • Material handling systems • Automotive