The Controller 14.422 serves to excite the magnetic particle clutches and brakes. The excitation current can be influenced by a dancer potentiometer or a master voltage. The built-in current controller ensures that, despite varying coil temperature the current is constant.
Other important features of the controller are: Setpoint integrator, control amplifier and temperature monitoring through an optional thermal switch at the magnetic particle clutch or brake. Should the body temperature become too high, the controller simply switches off.