Sterlco M2B - Diagnostic Error Messages; Fault Reset Procedure

26
Diagnostic Error
Messages
* Prior to Jan 1999 this was a flashing “







”.
Fault Reset Procedure Reset Flashing “



”
• Enter Secure 4 menu by pressing
UP
and
ENTER
simultaneously for 3
seconds.
•
INDEX
to “ 

 ”
•
UP
arrow until “ +++ ” right display, press
ENTER
.
•
INDEX
to “ $)
$)$)
$) ” left display, press
ENTER
, 9 flashes.
•
UP
arrow until “ ,
,,
,,
,,
, ” in right display.
• Press
DOWN
and
ENTER
together to accept.
• Display will flash “ 

 ”, then “ 

 ” steady.
• Press
SET POINT
to exit to run.
Reload Factory Default
• Cycle control power to system Off and On.
• While M2B controller is performing the self test, simultaneously depress
the
INDEX
and
ENTER
keypads together.
• Index until “ & ” and “  ” appears in the display.
• Press the
DOWN
and
ENTER
keypads simultaneously to accept the
factory default. Both displays will flash “ 

&&
&&&&
&& ” then “ 

 “indicating re-
boot is complete.
• The controller will automatically return to the run mode.
DISPLAY DESCRIPTION ACTION REQUIRED
Flashing
“ 

 ”
Ambient temperature out
of range
Reduce ambient temperature
at controller, consult factory.
Flashing*
“ 

 ”
Controller Ram violated,
static discharge.
Controller must be reset to
factory defaults. Consult
factory for causes.
Steady
“ 

 ”
Delivery probe fail.
Check probe connection or
replace probe.
Steady
“ 

 ”
Return probe fail.
Check probe connection or
replace probe.
Steady
“ +
++
+ ” “ )
))
)-
--
-

 ”
4-20 mA input failed Check polarity.
P
S
P
S
RUN
∆
S P
S P
RUN
S P