Carrier 69NT40-541-505, Operation And Service Manual, Page: 70 / 143

T-368 4–40
Table 4–6 Controller Alarm Indications
NOTE
If the controller is configured for four probes without a DataCORDER, the DataCORDER alarms AL70
and AL71 will be processed as Controller alarms AL70 and AL71. Refer to
Table 4–10 .
ERR #
Internal
Microprocessor
Failure
The controller performs self-check routines. If an internal failure occurs, an ERR
alarm will appear on the display. This is an indication the controller needs to be
re placed.
ERROR DESCRIPTION
ERR 0-RAM failure
Indicates that the controller working memory has
failed.
ERR 1-Program Memory
failure
Indicates a problem with the controller program.
ERR 2-Watchdog time-
out The controller program has entered a mode whereby
the controller program has stopped executing.
ERR 3-N/A N/A
ERR 4-N/A N/A
ERR 5-A-D failure
The controller's Analog to Digital (A-D) converter has
failed.
ERR 6-IO Board failure Internal program/update failure.
ERR 7-Controller failure Internal version/firmware incompatible.
ERR 8-DataCORDER
failure
Internal DataCORDER memory failure.
ERR 9-Controller failure Internal controller memory failure.
In the event that a failure occurs and the display cannot be updated, the status
LED will indicate the appropriate ERR code using Morse code as shown below.
E R R 0 to 9
ERR0 = . .-. .-. -----
ERR1 = . .-. .-. . ----
ERR2 = . .-. .-. . . ---
ERR3 = . .-. .-. . . . --
ERR4 = . .-. .-. . . . . -
ERR5 = . .-. .-. . . . . .
ERR6 = . .-. .-. -. . . .
ERR7 = . .-. .-. --. . .
ERR8 = . .-. .-. ---. .
ERR9 = . .-. .-. ---- .
Entr
StPt
Enter Set point (Press
Arrow & Enter)
The controller is prompting the operator to enter a set point.
LO
Low Main Voltage
(Function Codes
Cd27-38 disabled and
NO alarm stored.)
This message will be alternately displayed with the set point whenever the sup-
ply voltage is less than 75% of its proper value.
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