WTC Technitron T2050 - Page 37

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The following is a list of numeric display messages.
3RZHUXS6WDWXV X.XX Software version number on power-up, momentarily
displayed.
XXX EPROM check sum, momentarily displayed after
software version.
E00 Memory Fault. A data check sum error occurred in
Sequence, or Config or both. Review all data, change
data in ONE function in BOTH Sequence and
Configuration. The fault may be cleared only after the
data change is made. Restore if necessary. This error
will occur the first time new firmware and/or PC board
is booted up.It may be caused by switching relay or
valve noise applied to the microprocessor. Always
apply snubbers across all relay and valve coils. Keep
relays physically and electrically away from the
microprocessor and its power source T1.
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E01 Test Module reset, momentarily displayed.
E02 System Reset, momentarily displayed.
E03 Loss of clock reset, momentarily displayed.
E04 Not used.
E05 Halt monitor reset, momentarily displayed. (HC16 was
lost, probably due to bus noise.)
E06 Software watch dog reset, momentarily displayed.
(HC16 was lost, probably due to bus noise.)
E07 Power up reset (masked off, not used).
E08 External reset (masked off, not used).