Set Configuration Jumpers; Rtd Inputs; Voltage Or Thermocouple Inputs; Unused Temperature Inputs - FACTS Engineering Direct Logic 405 Manual

SET CONFIGURATION JUMPERS

The module should be jumpered for the type of input device that it will be connected to.
following diagrams to configure the jumpers on your module. The two configurations shown here are the
only valid settings, any other settings may cause unpredictable results.

RTD Inputs

Voltage or Thermocouple Inputs

UNUSED TEMPERATURE INPUTS

Unused temperature inputs should be shorted together and connected to 24V common. For example, if
only three temperature loops are required, then wire the TEMP 4 +, TEMP 4 -, and COM terminal block
positions together
WARNING A thermocouple or RTD temperature sensor can become shorted
to a high voltage potential. Because common terminals are
internally connected together on the F4-4LTC, whatever voltage
potential exists on one temperature sensor will exist on the other
three.
2.2 INSTALLATION AND WIRING
Use the