
14
Voltage inputs
6 Installation
Instruction book, IQAN- XT2
Connecting switches to the voltage inputs
Switches could be connected to the voltage inputs, to create a digital on/off signal. The
switches should be connected to +VREF and VIN respectively for 5V signal. The
current consumption for the voltage input is negligible.
N
OTICE
Maximum load for VREF position, see Appendix A, on page 23.
It is recommended to connect system vBAT to the voltage input through a
switch in order to reserve 5Vdc VREF for sensors and potentiometers.
EXAMPLE
Connect the positive and negative terminals of the switch to +VREF, position 12,
and VIN-A, position 21, respectively.
Connecting a switch to VIN-A and VREF.
EXAMPLE
Connect the positive and negative terminals of the switch to +BAT and VIN-A,
position 21, respectively.
Connecting a switch to VIN-A and +BAT.
VIN-A, pos. 21
+VREF, pos. 12
IQAN-XT2
switch
+BAT
VIN-A, pos. 21
IQAN-XT2
switch