Diagnostic error messages – Dwyer 16L User Manual
Page 22
949-1270
Page 22 of 28
December, 1998
DISPLAY
No
display
lighted
FAIL
tESt
CHEC
SP1,
CHEC
SP2
CHEC
SPL
or
CHEC
SPH
CHEC
LorE
ArEA
(Alter-
nates
with PV)
ArEA
MEANING
Display is blank. In-
strument is not get-
ting power, or the
supply voltage is too
low.
Fail test appears
upon power up if the
internal diagnostics
detect a failure. This
message may oc-
cur during operation
if a failure is detect-
ed. Displays flash.
This message will
appear upon power
up if SP1, SP2, or
#SP1 is set outside
of the SPL or SPH
values.
This message ap-
pears at power up if
SPL or SPH values
are programmed
outside the input
range ends.
This message ap-
pears if the Serial
C o m m u n i c a t i o n s
has timed out.
This message appears
when the ambient tem-
perature of the control
approaches unaccept-
able ambients.
This message appears
if the ambiient temper-
ature of the control is
out of range or RJC
sensor is broken.
SP OUTPUTS
Set point
outputs inactive
Alarm inactive
Set point
outputs inactive
Alarm inactive
Set point
outputs inactive
Alarm active
Set point
outputs inactive
Alarm inactive
Set point
outputs active
Alarm inactive
Set point
outputs active
Alarms active
Set point
outputs active
Alarms active
ACTION REQUIRED
Check that the power supply is
on, or that the external fuses
are good.
The display alternate between
FAIL tESt and one of the fol-
lowing messages: FACt dFLt:
Memory may be corrupted.
Press the ENTER key and the
DOWN ARROW key to start
the factory default procedure.
Recheck controller program-
ming. rEt FACt: Unrecover-
able error, return to factory for
service.
Correct the SP1, etc. or adjust
the SPL or SPH values by
programming new values.
Correct the SPL or SPH val-
ues by programming new val-
ues.
Restore the communications
line and switch the LorE to
LOC.
Correct the ambient temperature
conditions. Ventilate the area of
the cabinet or check for clogged
filters. If RJC broken, return to
factory for service.
Correct the ambient temperature
conditions. Ventilate the area of
the cabinet or check for clogged
filters. If RJC broken, return to
factory for service.
DIAGNOSTIC ERROR MESSAGES