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5.0 ERROR CODES
Table 5.1 Error Codes
DISPLAY DESCRIPTION
FA 2
Watchdog Re-start
(Processor Crash If condition recurs, call the factory.)
FA 3
Memory Error at start-up
(User programming is erased, factory program defaults are re-loaded.)
FA 5
Keyboard Error at start-up
(UP or Down Key, or more than one key is being pressed during power-up.)
FA 20
Input Calibration Error
(Input signal differential too large. Factory use only)
FA 22
Internal Timer Failure
(Call the factory.)
FA 25
Synchro input signal not present *
(Measure voltages at terminals A-C and B-C.)
FA 27
Synchro input signal is not stable - never stops changing **
(The LTC is repeatedly changing taps, or there is noise present on the signal.)
ERR 30
Analog output calibration mode not enabled
(Change OP 30 to “On”.)
ERR 80
Serial Port Parameter Conflict
(Change Stop Bits or Parity setting.)
LOtAP
Alarm condition: the Low Tap position limit has been reached.
(The LTC position is lower than the Low Tap alarm limit.)
HItAP
Alarm condition: the High Tap position limit has been reached.
(The LTC position is higher than the High Tap alarm limit.)
ttCLt
Alarm condition: the Total Tap Change counter limit has been reached.
(There have been too many tap changes – total Up and Down.)
OtGLt
Alarm condition: the On-Tap Guard band limit has been reached.
(One or more tap changes have stopped outside the acceptable position limit.)
udCLt
Alarm condition: the Up-To / Down-To tap change counter limit has been
reached. (There have been too many changes up or down to one or more taps.)
PtnLt
Alarm condition: the Pass Through Neutral limit has been reached.
(There have been too many days without a Pass Through Neutral.)
1dCLt
Alarm condition: the One Direction tap change counter limit has been reached.
(There have been too many consecutive tap changes in one direction.)
* This alarm needs to be reset, either manually or automatically. Use the OP 53, Aut25,
AUTO25 command to set the Automatic Reset to “On” or “Off”. When the Automatic Reset
is set to “Off”, press the MENU button to manually reset the alarm.
** This alarm needs to be reset, either manually or automatically. Use the OP 60, Aut27,
AUTO27 command to set the automatic reset to “On” or “Off”. When the Automatic Reset is
set to “Off”, press the MENU button to manually reset the alarm.
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