TECHNICAL FEATURES AND REGULATIONS SET POINT It can be fixed by a small screwdriver on the front. The set point can be either of MAX or min, depending on the dip-switch min-MAX. It is divided in 10 parts. PROGRAMMING DIP-switch 6 steps DS2 - fig. 2 providing the following commands. MODE OF OPERATION The device works on the base of the pulses/min instead of the RPM. It is necessary to point out that: PULSES/MIN = RPM/MIN x PULSES/REV The pulses/rev are given by the number of the holes (fig.8 and 9) The frequency of the pulses is measured in Hz (pulses per second), and consequently the pulses per minute = Hz x 60 Ex.: 100 Hz corresponds to 6000 pulses/min. When the inductive sensors are used, the size of the metals and of the holes must be at least equal or larger than the head of the sensor. It is in fact required that the sensor is entirely covered and discovered. Such precaution is indispensable for the good working of the device, also in presence of higher temperatures or by ageing. INSTALLATION Electric wirings as per fig.3. (Wiring to an electrical board with a differential relay and a sectionalizing switch). The length of every wiring must be le ss than 30m. WORKING TEMPERATURE: 0÷70°C WEIGHT: 0,200 kg COLOUR: black RANGES: TAB. A It is suggested to operate within 10% and 100% of the full scales stated in TAB.A.

FUNCTION The electronic controller is a device which receives a train of pulses by a sensor (micro-mechanic, optical, inductive amplified NPN or PNP, NAMUR etc). The pulses are converted into a voltage proportional to the pulses frequency. This voltage is compared with a variable reference voltage (SET POINT). The internal relay changes over when the input speed is faster or lower than the fixed SET POINT. USE It is employed to control the shaft revolution speed or the linear speed of mechanical parts which are in movement. In case of speed increase or decrease, the device gives a signal to the operator.

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