750-166 2-5
(Continued)
TABLE 3—SELECTABLE MESSAGES (see CB780/CB784 Relay Module, Manual Part Number 750-166).
Selectable
Message/Display Description
Possible States/Range
(Terminals) Comments
Flame Signal Flame signal strength. 0 - 5.0 Vdc Flame
Amp (+ and - (Com))
Flame relay pull-in and drop-
out value 1.25 Vdc.
Total Cycles Total number of equipment
operating cycles
0 - 99,999 cycles Cycle counter will be updated
each time the main valve is
energized.
Total Hours Total number of equipment
operating hours.
0 - 99,999 hours Hour counter will be updated
each time the main valve output
is energized for 60 minutes.
Fault History> (six most
recent faults)
First level prompt for
history information. Has
subset level.
Fault Cycle ÂH1 Cycle when the fault
occurred.
0 - 99,999 cycles
Fault Hours ÂH1
H1
Run hour when the fault
occurred.
0 - 99,999 hours
Fault Code ÂH1 Number that identifies the
reason for the lockout.
0 - 999
*Fault Message* ÂH1 Indicates lockout cause.
Sequence Message ÂH1 Indicates where the lockout
occurred in the sequence.
(Second Line Message)
ÂH1
Second Line Message
explains any further
information available from
the CB 780/CB 784 or may
be blank if there is not a
preemptive second line.
H2…H6 etc.
Diagnostic Information> First level prompts for
history information. Has
subset level.
Device Device type number. RM7800x or RM7840x
Device Suffix Device suffix number. nnnn
Run/Test Sw Position of Run/Test
switch.
RUN or TEST Indicates if CB 780/CB 784 is
in RUN or TEST mode.
OperControl T6 Operating Control Input. 1 or 0 Indicates if input is on or off,
energized or de-energized.
Interlock T7 Running/Lockout Interlock. 1 or 0 Indicates if input is on or off,
energized or de-energized.
Pilot Valve T8 Pilot Valve. 1 or 0 Indicates if output terminal is
on or off, energized or
de-energized.
Main Valve T9 Main Fuel Valve. 1 or 0 Indicates if output terminal is
on or off, energized or
de-energized.
Ignition T10 Ignition. 1 or 0 Indicates if output terminal is
on or off, energized or
de-energized.
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