FXVMA Installation Instructions
7
Setting the BACnet MS/TP MAC Address
The BACnet MS/TP MAC address switch sets a unique
address for the FXVMA on the BACnet MS/TP bus.
Set the BACnet MS/TP MAC address using the DIP
switches on the face of the FXVMA. The address
equals the sum of the numbers set to ON. For
example, if the first (1), the third (4), and the fifth (16)
DIP switches are set to ON, the device address is 21
(1 + 4 + 16 = 21). Use addresses 1-128. See Figure 16.
Setting the End-of-Line (EOL) Switch
Move the End-of-Line (EOL) termination switch to its
On position when the FXVMA is at the end of the
daisy-chain of devices on the N2 or BACnet MS/TP
bus; otherwise, leave it at its default Off position. See
Figure 17.
Troubleshooting
Use Table 5 to troubleshoot the FXVMA.
Repair Information
If the FXVMA Variable Air Volume Box Controller fails
to operate within its specifications, refer to the
FXVMA
VAV Box Controller Technical Bulletin (LIT-12011249)
for a list of repair parts available.
Figure 17: EOL Switch
1
O
N
1
O
N
ON Position
OFF Position
E
O
L
_
S
w
it
c
h
.c
d
r
Table 5: FXVMA Light-Emitting Diode (LED)
Codes
LED
Description
Power
Green
On when powered
Off when not powered
Fault
Red
On during a reset
Off when the application is loaded and
operating correctly
Flashing when application is not
operating correctly or when the
application is in test mode
R/T
(Supervisory)
Green
Flashes when FXVMA transmits data to
a supervisor.
Turns off when the FXVMA receives
data.