OptiFlex™ I/O Expanders (part no. FIO)
Automated Logic Proprietary and Confidential A Carrier Company. © 2022 Carrier.
All rights reserved.
12
5 Connect an 18 AWG or larger wire from the power supply's negative (-) terminal to earth ground.
This wire must not exceed 12 in. (30.5 cm).
6 Apply power to the power supply.
7 Measure the voltage at the red screw terminal connector to verify that the voltage is within the
operating range of 20 to 30 Vac or 23.4 to 30 Vdc.
8 Insert the red screw terminal connector into the expander's power terminals.
9 To verify the polarity of the wiring, measure the voltage from the negative terminal of the red screw
terminal connector to a nearby ground. The reading should be 0V.
10 Turn on the FIO expander's power switch.
11 Verify that the PWR LED on top of the expander is on.
12 Measure the voltage at the red screw terminal connector to verify that the voltage is within the
operating range of 20 to 30 Vac or 23.4 to 30 Vdc.
To wire the expander for communications
Use ARC156 wiring (22 AWG, low-capacitance, twisted, stranded, shielded copper wire) to wire the FIO
expander to the controller. Do not exceed 1000 feet (305m) total wire length for the I/O bus.
WARNING Do not apply line voltage (mains voltage) to the expander's ports and terminals.
1 Turn off the controller's and expander's power.
2 Wire the expander's I/O Bus port to the same port on the controller.
NOTES
○ To use more than one expander, wire their I/O Bus ports together in a daisy-chain
configuration. The controller must be the first device on the expander network.
○ Use the same polarity throughout the network segment.
3 On the last expander on the I/O bus, set the I/O Bus End of Net? switch to Yes to apply network
termination and bias.
NOTE The controller has built-in I/O bus network termination and must be the first device on the
expander network.
4 Turn on the controller's and expander's power.
To Next Page
Loading...
Need help?
General