15
Frequency inputs
6 Installation
Instruction book, IQAN- XT2
Frequency inputs
Connecting sensors to the frequency inputs
For the frequency ranges and trigger levels, see Appendix A, on page 23.
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 positions.
N
OTICE
The negative terminal of the sensor must not be connected to the chassis.
Maximum load for each VREF position, see Appendix A, on page 23.
EXAMPLE
Connect the positive and negative terminals of the frequency sensor to +VREF,
position 12, and -VREF, position 13, respectively. Then connect the sensor signal to
FIN-A, position 37.
Connecting of frequency sensor.
OR
Frequency sensor
-VREF, pos. 13
FIN-A, pos. 37
+VREF, pos. 12
