Figure 5: SA Bus Terminal Block Wiring
Note:
The SA PWR terminal supplies 15 VDC. The SA
PWR terminal can be used to connect (daisy
chain) the 15 VDC power leads on the SA bus.
FC Bus Port
The FC bus port on the front of the controller is an RJ-12,
6-position modular jack that provides a connection for
the Wireless Commissioning Converter, ZigBee
®
wireless
dongle, or ZFR1811 Wireless Field Bus Router.
FX-BTCVT Bluetooth
®
Commissioning Converter,
ZFR-USBHA-0 ZigBee
™
wireless dongle, or FX-ZFR1811
Wireless Field Bus Router.
The FC bus port is connected internally to the FC bus
terminal block. See for more information. The FC bus
Port pin assignment is shown in .
Figure 6: Pin Number Assignments for Sensor,
FC Bus, and SA Bus Ports on Controllers
Sensor Port
The Sensor (SA Bus) port on the bottom of the controller
() is an RJ-12, 6-position modular jack that provides a
connection for the Wireless Commissioning Converter,
the VAV Balancing Tool, specified network sensors, or
other SA Bus devices with RJ-12 plugs.
A DIS1710 Local Controller Display also can be
connected to the SA Bus port (but only on FEC models
without integral display and push buttons).
The Sensor port is connected internally to the SA bus
terminal block. See
for more information. The
Sensor Port pin assignment is shown in
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.
Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug as
shown below. The middle terminal on the supply power
terminal block is not used. See
for more
information about the Supply Terminal Block.
Figure 7: 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.
7
FEC26Field Equipment Controllers Installation Instructions
