SPEED TACHOMETER SENSORS, COLLECTORS
TACHOMETER SENSORS
It is a device that verifies the speed of the rolling stock, providing an analog output signal, transmitting to the control unit the information necessary to open the doors
COLLECTORS
The speed collector is the element that, interfaced to the phonic wheel of the rolling stock, transmits to the control unit the speed information in the form of a square wave with a frequency proportional to the speed of the rolling stock
