Analog Input Interface (FAC2100)

Owned by Gary Cane
Last updated: Jun 30, 2014 by Mark Krueger (Unlicensed)

 Analog Input Interface

 

Analog Input


The FAC-2100 contains three analog inputs each capable of reading a 4-20mA analog current signal, a 0 to 5V single-ended analog voltage signal, a +/-1V differential signal, an Resistance Temperature Device (RTD), or a 0 to 2400 ohm Resistor with connections similar to that shown in the figure above. The figure shows the auxiliary output voltage source and an analog input.


Input signals are attached to the AIN+, AIN-, and/or Gnd (ground) pins through connections made via cylindrical connectors on the rear of the device. All internal electrical routings that are necessary to reconfigure the input for a particular mode are automatically made via software controlled analog switches.


Note: The FAC-2000 controller (the previous version to the FAC-2100) required external wire jumpers to attached to the analog input pins and configure them for various modes. Those jumpers are not required on the FAC-2100. If those jumpers are installed, for example when the FAC-2100 is used as a drop-in replacement to an existing FAC-2000 installation, they do not need to be removed and will not adversely effect the FAC-2100 operation.Â