Important:
Connect 24 VAC supply power to the
controller and all other network devices so
that transformer phasing is uniform across
the network devices. Powering network
devices with uniform 24 VAC supply power
phasing reduces noise, interference, and
ground loop problems. The field controller
does not require an earth ground
connection.
Wireless Network Applications
The controller can also be installed in a wireless
application using a ZFR1811 Wireless Field Bus Router.
To configure a controller for use with the ZFR1800 Series
Wireless Field Bus system:
1. Wire the input/output terminals and SA bus.
Note:
In wireless network applications, do not
connect any wires to the FC bus terminal
block. (Connect the SA/FC terminal block on
an IOM to an SA bus only.)
2. Connect the ZFR1811 Wireless Field Bus Router to
the FC bus port (RJ-12 modular jack) on the front of
the controller.
3. Ensure that the controller's device address DIP
switches are set to the correct device address. See
.
4. Set DIP switch 128 to ON, which enables wireless
operation on the field controller.
For more information on installing a controller in a
wireless configuration, refer to the
ZFR1811 Wireless
Field Bus Router Installation Instructions (Part No.
24-10325-10)
.
Termination Details
A set of Johnson Controls
®
termination diagrams provides details for wiring inputs and outputs to the controllers.
See the figures in this section for the applicable termination diagrams.
Table 2: Termination Details
Termination Diagrams
Type of
Input/Output
Type of Field Device
UI
UI
Voltage Input - External
Source
UI
Voltage Input - Internal
Source
8
FEC26Field Equipment Controllers Installation Instructions
