DP-20 PLUS Web Guide Controller 9-2
4th Quarter 2021 © 2021 Maxcess International. All rights reserved. Figure Sheet 2-320 A
Fault Codes
When a fault is indicated on the LCD Panel, the Menu Number on line 1 of the LCD Panel is re-
defined as follows;
The faults are as follows;
FLASH CRC fault (001). An error was detected in the flash memory.
Press the ENTER key to exit the fault screen. Cycle the power to the
unit. If the fault persists, the unit must be reprogrammed.
+48VDC TOO LOW fault (002). The +48-volt power supply is too low.
Remove power from the unit and disconnect all external cables to
check for bad cables. Re-apply power. If problem persists, the unit
must be repaired.
+48VDC TOO HIGH fault (003). The +48-volt power supply is too high.
Remove power from the unit and disconnect all external cables to
check for bad cables. Re-apply power. If problem persists, the unit
must be repaired.
AC POWER FAIL fault (004). A failure of the AC Power was detected.
The unit will automatically reset. If the fault persists, the unit must be
repaired.
EEPROM CRC fault (005). An error was detected in the EEPROM
memory. A configuration setting has changed unexpectedly, causing
this fault. Press the ENTER key to exit the fault screen. If it can be
determined which configuration setting has changed, correct the
setting. Otherwise, if a good Backup has been stored, perform a
“Restore Backup” to correct this problem. If the fault persists, the unit
must be repaired.
ILLEGAL MODE fault (006). An illegal mode was detected. Press the
ENTER key to exit the fault screen and continue using the unit (The
unit is forced to Manual mode). If the fault persists, the unit must be
repaired.
3A.0.001
<<< FAULT >>>
FLASH CRC
PRESS èéê
3A.0.002
<<< FAULT >>>
+48VDC TOO LOW
POWER DOWN
3A.0.003
<<< FAULT >>>
+48VDC TOO HIGH
POWER DOWN
3A.0.004
<<< FAULT >>>
AC POWER FAIL
POWER DOWN
3A.0.005
<<< FAULT >>>
EEPROM CRC
PRESS èéê
3A.0.006
<<< FAULT >>>
ILLEGAL MODE
PRESS èéê
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