Johnson Controls IOM3721, Руководство по установке

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Note: The SA PWR/SHLD terminal does not supply 15
VDC. The SA PWR/SHLD terminal is isolated and
can be used to connect (daisy chain) the 15 VDC
power leads on the SA bus (
Figure 5 ) or the cable
shields on the FC bus ( Figure 4 ). The SA bus
supervisor (FAC, FEC, or VMA) supplies 15 VDC
to devices on the SA bus requiring power.
SA/FC Bus Port
The SA/FC bus port on the front of the controller is an
RJ-12, 6-position modular jack that provides a connection
for devices on the SA bus, a Wireless Commissioning
Converter, ZigBee
™ wireless dongle, or an ZFR1811
Wireless Router (depending on which bus the controller
is operating on).
The SA/FC bus port is connected internally to the SA/FC
bus terminal block. See
Table 4 for more information.
The SA/FC bus port pin assignment is shown in Figure
6 .
Figure 6: Pin Number Assignments for Sensor, SA
Bus and FC Bus Ports on Field Controllers
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 in
Figure 7 . The middle terminal on the supply
power terminal block is not used. See Table 4 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.
Important: Connect 24 VAC supply power to the field
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:
Note: IOMs can talk wirelessly on the FC bus only
1. Connect the ZFR1811 Wireless Field Bus Router to
the FC bus port (RJ-12 modular jack) on the front of
the field controller.
2. Ensure that the field controller's device address DIP
switches are set to the correct device address. See
Setting the Device Addresses .
3. 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.
24-10325-1)
.
5 IOM3721 Input/Output Module Installation Instructions