LN Application Specific, Remote I/O, and Free Programmable Controllers Installation Instructions
5
Use an external fuse on the 24 VAC/DC side (secondary side) of the transformer to protect all controllers against
power link spikes.
Input Wiring
The devices have physical connections for inputs (marked Ulx), which are software configurable from within the
device’s LNS® plug-in or wizard. Therefore, hardware configuration is not required.
Each input can be configured for digital, resistive, current, or voltage signals. You must configure the input types
properly in the software plug-in or wizard to ensure proper input readings.
Note:
For a wire of less than 75 feet (23 m), use either a shielded or unshielded 19 AWG wire.
Note:
For a wire from 75 feet (23 m) to 200 feet (61 m), we recommend a shielded 18 AWG wire.
Note:
The wire should be shielded on the controller or module side, and the shield length should be kept as short
as possible.
Wiring Digital Inputs
Use the input configuration in Figure 5 to monitor digital dry contacts.
IMPORTANT:
Before connecting any sensor to the device, refer to the installation guide of the equipment
manufacturer.
Figure 3: Power Wiring – AC
Figure 4: Power Wiring – DC
Figure 5: Digital Input – Digital Dry Contact
(N.O. and N.C.)
