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LGD440-10 DC Motor Control

LGD440-10 DC Motor Control

LGD Series

The LGD series of motor drives is a versatile and compact SCR drive designed for any 1Q application where a field output is not required. With most of the features offered by the LGC family of drives, the LGD series offers even more flexibility. Unlike the LGC series where it’s inhibit function is actuated by the closing of the inhibit terminals, the LGD series allows you to choose either to open or close to inhibit. Other user selectable features include inhibiting to zero or to minimum speed, and torque mode or speed mode operation. With the unit set up to run in torque mode, you can easily control the amount of current that is supplied to your motor via an external potentiometer, perfect for tensioning applications. This feature rich series is easily adapted to meet almost any application need.


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Enclosure Maximum
Power Range Field / Shunt
Braking Reversing Isolation
LGD440-10 NEMA 4X 10 115 0 - 90 1/8 - 1 .09 - .75 No No No No
230 0 - 90 1/8 - 1 .09 - .75
0 - 180 1/4 - 2 .19 - 1.5


  • NEMA 4X Enclosure: Water resistant and dust proof enclosure
  • Torque Mode: Can be used for speed control or torque control for tension applications
  • Stopping Modes: Inhibit (N.O. or N.C.) for coasting to a stop, can be used for frequent starting and stopping
  • Selectable Inhibit: Inhibit can be set for decel to zero speed or minimum speed
  • Diagnostic LEDs: Current Limit, Power
  • Case LEDs: Power
  • Pre-Wired Switches: ON/OFF

Technical Data

  • 1.37 Form Factor
  • 1% Base Speed Regulation
  • 60:1 Speed Range

Trim Pots

  • Maximum Speed
  • Minimum Speed
  • Acceleration
  • Deceleration
  • Current Limit
  • IR Compensation