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APPENDIX C — BACNET COMMUNICATION OPTION (cont)
For the CCN Time Broadcaster configuration, the UPC
Open controller defaults to CCN Time Broadcaster. If the
Chiller Lead/Lag/Standby application is used, then the Carrier
technician must change the configuration to only one CCN
Time Broadcaster on the CCN bus.
TROUBLESHOOTING — If there are problems wiring or
addressing the UPC Open controller, contact your Carrier rep-
resentative.
COMMUNICATION LEDS
— The LEDs indicate if the
controller is communicating with the devices on the network.
See Tables E and F. The LEDs should reflect communication
traffic based on the baud rate set. The higher the baud rate the
more solid the LEDs become. See Fig. A for location of LEDs
on UPC Open module.
TESTING AND REPLACING THE UPC OPEN BAT-
TERY
—
The UPC Open controller’s 10-year lithium
CR2032 battery retains the following data for a maximum of
10,000 hours during power outages: control programs, editable
properties, schedules, and trends. The UPC Open controller’s
battery-backed real time clock keeps track of time in the event
of a power failure.
To determine when to replace the battery, measure the volt-
age. If the voltage is below 2.9 volts, replace the battery. This
can be accomplished while the UPC Open controller is pow-
ered.
If the battery must be replaced, remove the battery from the
controller, making note of the battery's polarity. Battery polari-
ty indication is on the UPC Open casing near the battery. Insert
the new battery, matching the battery's polarity with the polari-
ty indicated on the UPC Open controller.
NETWORK POINTS LIST — The points list for the control-
ler is shown in Table G.
Refer to Appendix B for additional information on CCN
point names.
Table E — LED Status Indicators
Table F — Run and Error
LEDs Controller and Network Status Indication
IMPORTANT: Power must be
ON
to the UPC Open con-
troller when replacing the battery, or the date, time, and
trend data will be lost.
LED
STATUS
POWER
Lights when power is being supplied to the controller. The UPC Open controller is protected by internal solid-state polyswitches on
the incoming power and network connections. These polyswitches are not replaceable and will reset themselves if the condition
that caused the fault returns to normal.
RX
Lights when the controller receives data from the network segment; there is an Rx LED for Ports 1 and 2.
TX
Lights when the controller transmits data to the network segment; there is an Tx LED for Ports 1 and 2.
RUN
Lights based on controller status. See Table F.
ERROR
Lights based on controller status. See Table F.
RUN LED
ERROR LED
STATUS
2 flashes per second
Off
Normal
2 flashes per second
2 flashes, alternating with
Run
LED
Five minute auto-restart delay after system error
2 flashes per second
3 flashes, then off
Controller has just been formatted
2 flashes per second
1 flash per second
Controller is alone on the network
2 flashes per second
On
Exec halted after frequent system errors or control programs halted
5 flashes per second
On
Exec start-up aborted, Boot is running
5 flashes per second
Off
Firmware transfer in progress, Boot is running
7 flashes per second
7 flashes per second, alternating with
Run
LED
Ten second recovery period after brownout
14 flashes per second 14 flashes per second, alternating with
Run
LED Brownout
o
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