19
Frequency inputs
Instruction book, IQAN
Frequency inputs
Connecting sensors to the frequency inputs
Frequency inputs can operate in 2 modes. Speed which is frequency and position which
is a pulse count. For the frequency ranges and trigger levels, see Appendix A.
Simple frequency sensor
The positive terminal of the frequency sensor is connected to the +VREF and the
negative terminal to the -VREF respectively. The sensor signal is
connected to the FIN position.
If the current consumption for the sensor exeeds the maximum load for the VREF, the
sensor could be connected to the +BAT/-BAT positions.
NOTICE
The negative terminal of the sensor must not be connected to the chassis.
Maximum load for VREF position, see Appendix A.
EXAMPLE
Connect the positive and negative terminals of the frequency sensor to +VREF,
and -VREF, respectively. Then connect the sensor signal to FIN-X.
Connecting of frequency sensor.
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