Trane Building Automation System manual Tracker main logic board LEDs, Alarm LED, LED name

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					Troubleshooting components
Table 11. Tracker main logic board LEDs
LED name		LED	Color		Description
	number
HI TX	LED6		Green		Flashes when the main module attempts to communicate with the display
					module. The main module attempts to communicate with the display module
					even when the display module is not installed. With no display module installed,
					the LED flashes every two seconds.
HRT	LED5		Green		Shows the status (heart beat) of the CPU. This LED is on continuously while the
					controller boots up. It flashes to show processor activity.
CODE	LED4		Red		Shows the status of the controller operating code. This LED is on continuously
					while the controller is booting up and/or whenever the controller needs operat-
					ing code.
					Note: Code can be downloaded to the Tracker controller with the use of the Tracker PC software
					if this LED is on.
PC RX	LED7		Green		Shows that EIA-232 traffic is on the PC port. This LED is normally off. Flashes
					when the controller receives data from the PC.
PC TX	LED8		Green		Shows that EIA-232 traffic is on the PC port. This LED is normally off. Flashes
					when the controller transmits data to the PC.
BOP	LED3		Red		Flashes when the controller binary output relay is energized and when an
					appropriate alarm condition exists.
SERVICE	LED9		Red		Shows that Comm5 service is required. This LED is normally off. LED is on
					continuously to show that controller hardware is defective. LED is on
					continuously to show that the Service pin button (SW2) was pressed. Flashes to
					show that the controller must be rebooted.
COMM	LED2		Yellow		Shows that network traffic is on the Comm5 link. Flashes when the controller
					receives data from a Comm5 device.
Left LED	None		Green		Shows that an Ethernet link is detected.
Right LED	None		Green		Shows that there is serial traffic between the Ethernet module and the Tracker
					main logic board.
Table 12. Alarm LED
State		Color			Description
Normal		Green		LED is on continuously when the controller is operating normally and has received
				no alarms of the appropriate severity.
Alarm		Red		Flashes when the controller receives an alarm of the appropriate severity. To
				acknowledge the alarm and turn off the LED, press the Alarm function button
				displayed on the user interface home screen.

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