Trane Tracer UC210 Installation, Operation, And Programming page 26

Controller LEDs
Table 8. LED Activities and Troubleshooting Tips
LED Name Activities
Shows solid green when the unit is
powered and no alarm exists.
Shows blinking green during a device
reset or firmware download.
Shows solid red when the unit is
powered, but represents low power or a
malfunction.
Marquee LEDs
Shows blinking red when an alarm or
fault exists.
LED not lit.
Link and IMC
Shows solid green when the LED has
Service
Binary B01
through B05
26
TX blinks green.
RX blinks yellow.
LED is not lit.
been pressed.
LED not lit.
Shows solid yellow.
LED not lit.
Indication and Troubleshooting
Tips
Indicates normal operation.
Indicates normal operation.
If low power: could be lacking voltage or
the microprocessor has malfunctioned.
If malfunction: turn off power and then
re-power unit to bring the unit back up to
normal operation.
An alarm or fault condition will occur if
the value for a given point is invalid or
outside the configured limits for the
point. Alarm and fault conditions vary,
and they can be configured by the
programmer.
Indicates power is OFF or there is a
malfunction.
OFF or malfunction: cycle the power.
Blinks at the data transfer rate when the
unit transfers data to other devices on
the link.
Blinks at the data transfer rate when the
unit receives data from other devices on
the link.
• ON solid yellow: indicates there is
reverse polarity.
Indicates that the controller is not
detecting communication.
• Not lit: cycle the power to reestablish
communication.
Indicates controller is operating
normally.
Indicates a corresponding binary output
has been commanded ON.
• Relay coil: indicates that a command
has been made to energize.
• TRIAC: indicates that a command has
been made to turn ON.
Indicates that a relay output is de-
energized or no power to the board.
• Not lit: cycle power to reestablish
communication.
Notes
When powering the UC210 and
expansion module, the Marquee LED will
blink RED, blink GREEN (indicating
activated and controller/expansion
module are communicating), and then
stay GREEN CONTINUOSLY (indicating
normal power operation).
TX LED: Regardless of connectivity or
not, this LED will constantly blink as it
continually looks for devices to
communicate to.
LED not lit:
Determine if, for example, a Tracer SC or
BACnet device is trying to talk to the
controller or if it is capable of talking to
the controller. Also determine if the
communication status shows down all of
the time. In addition, check polarity and
baud rate.

When the UC210 is placed into boot
mode, the system will not run any
applications such as trending,
scheduling, and TGP2 runtime. The
controller is placed into boot mode if the
service pin is held in when power is
applied. In boot mode, the controller is
non-operational and is waiting for a new
main application to be downloaded.
If you are currently powering the UC210
from a USB port, the Led lights will turn
ON. However, the binary outputs will not
be activated.
Commanded ON; As an example of
commanded ON, a command could be a
manual command such as an override or
a command could be from TGP2 based
on a list of conditions that are met telling
these outputs to turn ON.
LED not lit:
Did you command it to be ON? If yes, see
the Marquee LED at the top of this table.
BAS-SVX62E-EN