To add biasing, power off the FX30E/FX60E and remove the necessary assemblies (such as metal shield) to access the base board jumper pins located behind the RS-485 port. Then reposition the two shorting blocks on these jumper pins and reassemble the unit by remounting the processor module, hex standoffs, metal shield, and shield screws.
Warning:
Warning:
If the controller is already installed or mounted, we recommend that you remove the controller first. Then work on a flat, stable, well lit work surface.