AEC WD 350 through WD3000 Dehumidifying Dryers - Manual (Page 48)

350-2100 cfm Dryers Chapter 6: Maintenance 47 of 58
Figure 9: Regeneration Monitor Signal Processor Error Messages
Item Condition Error
Output Status
Corrective
Message Compara-
tive
Outputs
BCD
Output
Linear
Output
Commun-
ications
Action
Device
Failure CPU RAM
error,
external
memory
error,
memory
data error.
OFF OFF OFF OFF
Turn the power OFF
and then ON again
once. If the error
persists, call Service.
Corrupted
Data
OFF OFF OFF OFF
Turn the power OFF
and then ON again
once. If the error
persists, press the
mode key and set all
parameters again.
Sensor
Error Breakage or
short circuit of
sensor. When
the
thermocouple
is used,
terminals 11
and 13 are
not short
circuited.
OFF OFF OFF
OFF
Check sensors for
breakage, short
circuiting, or incorrect
wiring.
Overflow,
Underflow Input value
or display
value
outside
range.
Display
Blinks
Continues
Continues
OVER
ON
Continues
Continues
OVER ON
Keep the input value
and display value
within the range.
Output
Type
Change
When
output type
has
changed.
OFF OFF OFF OFF
Check the output type.
If correct, press the
mode key. This erases
the set the parameters,
so re-enter them. If the
problem persists, call
Service.
Output
Type Error
Output type
other than
specified.
OFF OFF OFF OFF
Turn the power OFF
and then ON again
once. If the error
persists, call Service.
Input
Specifi-
cation
Error Input type
other than
specified.
OFF OFF OFF OFF
Turn the power OFF
and then ON again
once. If the error
persists, call Service.