4–45
T-340
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 con
-
troller needs to be replaced.
ERROR
DESCRIPTION
ERR 0-RAM fail
-
ure
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-Data
-
CORDER 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.
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 supply voltage is less than 75% of its proper value.
Table 4–6 Controller Alarm Indications
Alarm Code
Cause
Components
Troubleshooting
Corrective Actions
