Supply power terminal block
The 24 VAC supply power terminal block is a gray, removable, 3-terminal plug that fits into a board-
mounted jack on the top right of the controller.
Note:
If CE compliance is required for the FX-PCX1711-0, FX-PCX2711-1, or FX-PCX2711-2
product and application, the ferrite ring that is included in the package must be used in
the installation. The ferrite ring does not affect UL864 Smoke Control applications. It is not
required for applications in North America.
To install the ferrite ring, pass the two 24 VAC supply powerwires through the opening of the
ring and then complete five wraps or turns of both wires around the outside of the ring and
back through the center opening as shown in the following figure. Locate the ferrite ring as
near to the supply power terminal plug as possible while still allowing for a typical connection
to the controller with the terminal plug.
Figure 7: Wrapped ferrite ring
Wire the 24 VAC supply power wires from the transformer to the HOT and COM terminals on the
terminal plug as shown in the following figure. The middle terminal on the supply power terminal
block is not used. See Table 5 for more information about the Supply Terminal Block.
Figure 8: 24 VAC supply power terminal block wiring
Note:
The supply power wire colors may be different on transformers from other
manufacturers. Refer to the transformer manufacturer’s instructions and the project
installation drawings for wiring details.
9
FX-PCX17 and FX-PCX27 Expansion Input/Output Module Installation Instructions
