OEM Frequency to Voltage Converter
(FVC) board is designed to convert a continuous series of digital pulses
(frequency) into an analog voltage. The board is ideal for a close loop
control of a motor shaft. The input is designed to accept low level (as
low as +/- 60 mV P-P) pulses from magnetic pick-ups or high-level square
wave signals from a shaft encoder (as high as +/- 40 V P-P).
the output voltage is positive (0 to 10 VDC) or negative (0 to 10 VDC)
with a magnitude proportional to the input frequency signal. This FVC
board may be used to provide a unidirectional analog velocity signal
that is directly proportional to the output from an encoder connected to
a rotating shaft. The output maintains a signal linearity and drift too
less than 0.3% with temperature drift of less than 0.05% per degree
centigrade with a very low ripple, less than 30 mV P-P at 10 KHz. Each
frequency to voltage converter module includes controls to set the
output signal Zero and Span. Where the Zero output sets for zero input
frequency (CW incises). And Span output sets to maximum input frequency
(CCW incises). The board operates of 2 wires 24 VDC or 24VAC power supply. The board’s Molex
cage-up Terminal-Block makes it easy to connect to external connections
Module delivers analog 0 to +10 VDC or 0 to -10 VDC outputs proportional
to input pulse rate (frequency). Where it accepts variable pulse rate
inputs from a variety of sensors including magnetic pick-ups, with
maximum linearity. It the ideal board for supplying velocity feedback in
closed loop speed control systems.
The Board operates on the frequency content of a sinusoidal, triangular,
or square waveform. Typical transducers include:
Pick-up detecting a passing Gear-Teeth, Keyway, etc.
that scans alternating opaque and
Tachometer or Encoder.
For fast response of Board outputs, it is important that the transducer
be located toward the high-speed end of the drive train. For slow shaft
speeds, the transducer must be capable of delivering a high number of
cycles or pulses per revolution. The transducer should also be capable
of delivering a usable output for the entire speed range through maximum
The following formula is convenient for relating machine speeds and
sensor frequency output:
or Hz) = (RPM * PPR) /60
is Cycle Per Second
is the speed of the shaft where the sensor is located in Revolutions
is the number of Pulses (or cycles) produced by the sensor for one
shaft Per Revolution.
Super performance in is class; The Industrial board Zero and Span
adjustment allows the unit to deliver full-scale output voltage for any
input frequency within the limits of frequency range rating. It will
provide an ultimate combination of fast response and low ripple.
– FVC-DZSA transducer board is an
linear, and an efficient way to convert industrial standards frequencies 0 to 1KHz,
0 to 10KHz into 0 to 10V or
0 to -10V industrial standards
or 0 to 5V or 0 to -5V output voltages
signals.... See below table "frequency to voltage industrial standard
Note: For systems that requires
i.e. frequency to 4-20ma converter,
use our OEM
Frequency to Current 4-20mA converter.