Honeywell S7800A Installation Manual page 10

Keyboard display module
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7800 SERIES S7800A KEYBOARD DISPLAY MODULE
 
 
 
 
Selectable
Message/Display
Flame Signal
Total Cycles
Total Hours
Fault History >
(Six most recent faults)
Fault Cycle
Fault Hours
Fault Code
*Fault Message*
Sequence Message
(Second Line Message)
Diagnostic Information >
Device
Device Suffix
Run/Test Sw.
OperControl
Interlock
Pilot Valve
Main Valve
Ignition
LowFire Sw
HighFireSw
PreIgn ILK
65-0090-6
 
Table 3. Selectable Messages.
 
Description
Flame signal strength.
Total number of equipment
operating cycles.
Total number of equipment
operating hours.
First level prompt for history
information. Has subset level.
¡¿
Cycle when fault occurred.
H1
Run hour when fault occurred. 0 - 99,999
¡¿
H1
Number that identifies the
¡¿
H1
reason for lockout.
Indicates cause of lockout.
¡¿
H1
¡¿
Indicates where in the
sequence the lockout
H1
occurred.
Second line message explains
¡¿
H1
any further information that is
available from the 7800
SERIES or may be blank if
there is not a preemptive
second-line. H2.H6 etc.
First level prompt for
diagnostic information. Has
subset level.
Device type number.
Device suffix number.
Position of Run/Test Switch.
T6 Operating Control Input.
T7 Running/Lockout Interlock.
T8 Pilot Valve.
T9 Main Fuel Valve.
T10 Ignition.
T18 Low Fire Switch.
T19 High Fire Switch.
T20 or T17
Pre-Ignition
b
Interlock
Possible States/ Range
(Terminals)
0 - 5.0 Vdc Flame Amp ( and
- (Com))
0 - 99,999
c
(250,000; 999,999
) cycles
0 - 99,999
c
(250,000; 999,999
) hours
-
0 - 99,999 cycles (250,000;
c
999,999
) cycles
c
(250,000; 999,999
) hours
0 - 999
-
-
-
-
RM78XXX, R7140, or
EC78XXX
nnnn
RUN or TEST
= 1 or 0
= 1 or 0
= 1 or 0
= 1 or 0
= 1 or 0
= 1 or 0
= 1 or 0
= 1 or 0
10
Comments
Flame relay pull-in and drop-
out value 1.25 Vdc.
Cycle will be updated each
time main valve is energized.
a
Hour will be updated each time
main valve output is energized
a
for 60 minutes.
-
-
-
a
-
-
-
-
-
-
-
Indicates if 7800 SERIES is in
RUN or TEST mode.
Indicates if input is on or off,
energized or de-energized.
Indicates if input is on (1) or off
(0), energized or de-energized.
Indicates if output terminal is
on or off, energized or
de-energized.
Indicates if output terminal is
on or off, energized or
de-energized.
Indicates if output terminal is
on or off, energized or de-
energized.
Indicates if input is on or off,
energized or de-energized.
Indicates if input is on or off,
energized or de-energized.
Indicates if input is on or off,
energized or de-energized.

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