Carrier 69NT40-541-001 Operation And Service page 62

CODE # TITLE
Internal
Microprocessor
Failure
ERR #
Internal
Microprocessor
Failure
Enter Setpoint
Entr StPt
(Press Arrow & Enter)
Low Main Voltage
(Function Codes
LO
disabled and
stored.)
T-316
Table 4–6 Controller Alarm Indications (Continued)
The Controller performs self-check routines. if an internal failure occurs,
an "ERR"alarm will appear on the display. This is an indication the Con-
troller needs to be replaced.
ERROR
ERR 0 - RAM failure
EER 1 - Program Memory failure
EER 2 - Watchdog time-out
EER 3 - N/A
EER 4 - N/A
EER 5 - A-D failure
EER 6 - IO Board failure
EER 7 - Controller failure
EER 8 - DataCorder failure
EER 9 - Controller failure
In the event that a failure occurs and the display cannot be updated, the
status LED will indicate the appropriate EER code using Morse code as
shown below.
E R
ERR0 = . .-. .-. -----
ERR1 = . .-. .-.
ERR2 = . .-. .-.
ERR3 = . .-. .-.
ERR4 = . .-. .-.
ERR5 = . .-. .-.
ERR6 = . .-. .-.
ERR7 = . .-. .-.
ERR8 = . .-. .-.
ERR9 = . .-. .-.
The Controller is prompting the operator to enter a set point.
Cd27-38 This message will be alternately displayed with the set point whenever
NO alarm the supply voltage is less than 75% of its proper value.
DESCRIPTION
R 0 to 9
. ----
. . ---
. . . --
. . . . -
- . . . .
-- . . .
--- . .
---- .
---- .
4–26
DESCRIPTION
Indicates that the Controller
working memory has failed.
Indicates a problem with the
Controller program.
The Controller program has
entered a mode where by the
Controller program has
stopped executing.
N/A
N/A
The Controller's Analog to
Digital (A-D) converter has
failed.
Internal program/update
failure.
Internal version/firmware
incompatible.
Internal DataCorder
memory failure.
Internal controller
memory failure.