DC2-90U

About the DC2-90U

Reliance Electric DC2-90U Single Phase DC Motor Controller: Key Features

• The DC2-90U is a single-phase, continuous-duty DC motor controller manufactured by Reliance Electric.
• It converts AC power into adjustable DC power for enhanced control of output torque and speed.

Power Specifications

• Reconnectable AC power line supports input voltages of both 115 VAC and 230 VAC.
• Output voltage and horsepower vary with input AC voltage:
  • 115 VAC input yields 90 VDC and 1.0 horsepower.
  • 230 VAC input yields 180 VDC and 2.0 horsepower.

Mechanical and Protective Features

• Internal thermostat prevents motor overload.
• Unidirectional operation includes a coast-to-rest stop function.
• Features remote start, stop, run, and jog capabilities.
• Provides a usable supply for shunt-wound DC motors through a half-wave field.
• A back diode paired with a full-wave, half-controlled armature voltage rectifier improves armature form factor.

Speed Control and Adjustments

• Offers a variety of independent speed control functions.
• Adjustable current limits are available.
• Allows for separately setting minimum and maximum speeds.
• Speed control options include a potentiometer motor speed adjustment and a motor-mounted DC tachometer.
• An armature voltage regulation system provides operator-controlled speed adjustment.

Enclosure and Installation

• Housed in a NEMA 4/4X/12 enclosure, making it suitable for both indoor and outdoor installation.
• The robust enclosure protects the controller from harsh conditions, including inclement weather, spraying water, and solid foreign objects.
• Safety and installation guidelines are available in the corresponding series manual.