IM_1GSW-02
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7
EXCELA ERROR MESSAGES
The Excela diagnostics are capable of detecting many possible error conditions. Some error conditions will clear
automatically when the parameter returns to normal; others require the device to be powered down and restarted;
and some may require repair or replacement. A list of error conditions are listed below.
Possible Corrective Actions
Error Condition
and Code
Message
Probable Causes
Try This First
Other Options
Switch Output
Codes E44, E45,
E49, E50
CRC error on Se-
rial memory used to
store calibration /
configuration data.
Cycle Power. In most
cases, it should clear
the error and operate
normally.
If error does not clear, unit
has to be returned for factory
repair.
Switch output indicates
alarm conditions based on
the wiring set-up of the unit
and matches the Red LED
output.
KEY STUCK
Keypad button
shorted.
Cycle Power. In most
cases, it should clear
the error and operate
normally.
If error does not clear, unit
has to be returned for factory
repair.
"EXTREME OVER-
RANGE
E88"
TEMPERATURE
device process
input above 110% of
range.
Cycle Power. In most
cases, it should clear
the error and operate
normally.
If error continues, check for
sensor damage due to over
range exposure.
"EXTREME OVER-
RANGE
E88"
PRESSURE device
process input above
150% of range.
Cycle Power. In most
cases, it should clear
the error and operate
normally.
If error continues, check for
sensor damage due to over
range exposure.
Overrange
Process input is
above 103% of
range.
PRESSURE and
TEMPERATURE above
range value.
Automatic Reset when
process variable returns to
normal.
Underrange
Process input is be-
low -1.25% of range
PRESSURE and
TEMPERATURE below
range value.
Automatic Reset when
process variable returns to
normal.
PLUG
Process is not vary-
ing outside of Plug
Port Window setting.
Is pressure / tempera-
ture dynamic? Is sen-
sor clogged? Is plug
port setup OK?
Turn feature off.
"Reference Fault
E09, E13, E14"
Hardware internal
voltages are out of
range.
Reference Fault can
be caused by the
presence of electrical
noise. Eliminate elec-
trical noise sources.
If error does not clear, unit
has to be returned for factory
repair.
Watchdog Fault
The processor is
being reset automati-
cally on an internal
fault. Could be
caused by transients
on the power supply
or unit connected
to a load resistance
that is too high.
Review load resis-
tance. Cycle power. In
most cases, it should
clear the error and
operate normally.
If error continues, try a differ-
ent power supply or unit has
to be returned to factory for
repair.
All errors that start
with up to three
alphanumeric
digits
Causes are various
Cycle Power. In most
cases, it should clear
the error and operate
normally.
If error does not clear, unit
has to be returned for factory
repair.
Note: If the error remains after power cycling, please contact UE Inside Sales at [email protected] or call
+1 (617) 923-6977
