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LGC Series

-VRT: Trim pots are lifted 90 degrees off the board to allow for easier calibration in specific mounting orientations.

The LGC series is our most widely used series for general purpose 90/180 VDC brushed DC motor applications. This compact, non-filtered SCR drive series offers many user friendly adjustments. With the use of the on-board trim pots you can quickly set maximum speed, acceleration rate, deceleration rate, current limit, speed regulation, and minimum speed of your motor. With abilities to accept 115 or 230 VAC single phase power, run permanent magnet or field-wound motors, and by offering many NEMA packaging options, the LGC series can easily satisfy most of your motor driving needs.

Enclosure Maximum
Power Range Field / Shunt
Braking Reversing Isolation
LGC400-10-VRT Chassis 10* 115 0 - 90 1/8 - 1 .10 - .75 50 / 100 No No No
230 0 - 90 1/8 - 1 .10 - .75 100 / 200
0 - 180 1/4 - 2 .20 - 1.5

* Heat sink kit 223-0159 must be used when the continuous output current is above 5 amps.


  • ACE Footprint: Traditional ACE mounting pattern and footprint
  • Field Supply: Voltage output to energize the field winding of a shunt-wound motor
  • Stopping Modes: Inhibit (N.O.) for coasting to a stop. Can be used for frequent starting and stopping
  • Diagnostic LEDs: Current Limit, Power
  • Vertical Trim Pots: Trim pots lifted 90 degrees off the board to provide easier access for calibration
    in specific mounting orientations

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
Introduction to the LGC400 Series
LGC400 Series Wiring
Reversing with the LGC400 Series
LGC400 Connections to ISO202-1
Trim Pot Calibration: Minimum Speed
Trim Pot Calibration: Maximum Speed
Trim Pot Calibration: Acceleration
Trim Pot Calibration: Deceleration
Trim Pot Calibration: Torque / Current Limit
Trim Pot Calibration: IR Compensation