SAF - Model FS2/4 -Field Regulator for Control DC Motor

The use of a regulator provides the following benefits:

• Consistent field flux level independent of motor temperature changes
• Allows overspeed with maximum torque at the lower speed which minimizes the motor  size on constant horsepower applications
• Allows load sharing of motors that are tied to the same load or power supply
• Provides ability to control torque (tension) and speed
• Provides protection to the motor against overheating via field economy
• Provides field loss detection to avoid overspeed

Through proper application of the field regulator for control of a DC motor it is possible to regulate all the motor parameters by controlling the motor field flux thereby regulating the field ampere turns. The following field considerations should be made for various examples of DC Motor applications.