Specifications T 03N
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.
Features T 03N
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.
