Trane Tracer ZN517 Installation And Operation Manual page 89

CNT-SVX12C-EN
The green LED on the Tracer ZN517 unitary controller (see Figure 27 on
page 73) indicates whether the controller has power applied to it and if
the controller is in manual test mode (see Table 26).
Table 26. Green LED: Status indicator
LED activity
LED is on continuously.
LED blinks (one recurring blink).
LED blinks (blinks twice as a recur-
ring sequence).
LED blinks (1/4 second on,
1/4 second off for 10 seconds).
LED is off continuously.
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By sending a request from the Rover service tool, you can request the controller's
green LED to blink ("wink"), a notification that the controller received the signal
and is communicating.
The yellow LEDs on the Tracer ZN517 unitary controller (see Figure 27
on page 73) indicate the controller's communications status (see
Table 27).
Table 27. Yellow LED: Communications indicator
LED activity
LED is off continuously
LED blinks.
LED is on continuously.
Interpreting LEDs
Explanation
Power is on (normal operation).
Manual output test mode is being
performed and no diagnostics are
present.
Manual output test mode is being
performed and one or more diag-
nostics are present.
The Auto-wink option is activated,
and the controller is communicat-
1
ing.
Either the power is off,
the controller has malfunctioned, or
the Test button is being pressed.
Explanation
The controller is not detecting any
communication (normal for stand-
alone applications).
The controller detects communica-
tion (normal for communicating
applications, including data sharing).
Abnormal condition.
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