DC motor controller with thyristor LIBRATHERM INSTRUMENTS
To control the speed of the DC motor gradually, smooth DC voltage across the armature of the motor needs to be regulated along with the fixed DC voltage across the Field winding in the case of the 4 wire DC motors. The DC drive featured here, generates the variable DC voltage using phase angle control technique incorporating Diode / SCR rectifier. The DC voltage across the armature winding can be smoothly varied using the potentiometer or using the external control signal of 4-20mA or (0-5)VDC. Models are available for 1/8HP to 5HP DC motors operating on 100VDC to 400VDC.
APPLICATIONS
Suitable for small machines in Plastic, Packaging and Pharmaceutical industries where smooth and steady control over DC motor is required