DC2-43U

About the DC2-43U

DC2-43U is a DC2 controller that is manufactured by Reliance Electric. This unit offers basic torque control features. The service factor is 1.0. The duty is continuous. The load capacity is 150% for one minute. The line voltage varies ± 10% of the rated voltage. The AC line frequency is 48 to 62 hertz. The maximum allowable symmetrical A-C line fault current is 10,000 amperes. The maximum A-C line distribution system KVA capacity is 65.0 KVA at 115 VAC and 32.5 KVA at 230 VAC. Controllers are rated by their motor horsepower. The maximum altitude at which this controller may operate is 1000 meters. The efficiency of the controller and the motor together at rated speed and load is 78%.

The basic torque control features include motor torque adjustment by potentiometer, independently adjustable minimum and maximum torque, independently adjustable rate reference timing, adjustable speed limit by voltage limit or motor mounted D-C tachometer feedback, jumper selectable armature voltage feedback scaling at 90 or 180 volts, the ramp generator, and auxiliary form C contact for run indication. The torque control with isolated process control interface features include process interface (PI) gain adjustment, isolated input 300K ohm differential, process control signal input selection by jumper, manual/automatic mode switching by selector switch, and motor torque adjustment by potentiometer in manual mode or process control output signal in automatic mode. If the motor does not rotate, there may be faulty, grounded, or incorrect wiring. If this is the case, check the external wires and terminations at the controller, as well as all wiring within the motor conduit box. Correct any faulty wiring.