Kdm Display - Honeywell 7800 Series Product Data

7800 SERIES S7800A KEYBOARD DISPLAY MODULE
S7800 KEYBOARD DISPLAY MODULE
(MOUNTED ON 7800 SERIES RELAY MODULE)
5
2 3 4
1
120 OHM
RESISTOR
1
120 OHM
RESISTOR
1
2 3 4
1
5
S7800 REMOTE KEYBOARD DISPLAY MODULE
1
THREE WIRE SHIELDED CABLE MAY BE REQUIRED. TWO
120 OHM TERMINATING RESISTORS ARE REQUIRED FOR
CONNECTING OVER 100 FEET [30 METERS]. CABLE SHIELD
MUST BE TERMINATED TO EARTH GROUND AT BOTH ENDS.
IF SHIELDED CABLE IS NOT USED, TWISTED PAIR WIRE
MUST BE USED.
2
WHEN CONNECTING THE KEYBOARD DISPLAY MODULE DATA
CONTROLBUS MODULE", OR REMOTE RESET MODULE
EXTERNAL FROM THE CONTROL CABINET, APPROPRIATE
MEASURES MUST BE TAKEN TO MEET EN60730 SAFETY
LOW VOLTAGE REQUIREMENTS (SEE APPROVALS).
3 7800 SERIES RELAY MODULE CAN SUPPORT ONE S7800
KEYBOARD DISPLAY MODULE. A 13 Vdc POWER SUPPLY
IS REQUIRED FOR EACH ADDITIONAL DISPLAY.
4 UP TO 36 S7800 KEYBOARD DISPLAYS CAN BE CONNECTED
TO A SINGLE 7800 RELAY MODULE NOT TO EXCEED
4000 FEET (1219M) TOTAL LEADWIRE RUN. DAISY CHAIN 1 TO 1,
2 TO 2, 3 TO 3 AND PROVIDE 13 Vdc POWER SUPPLY FOR
EACH S7800 DISPLAY.
5 TERMINALS OF 203541 5-WIRE CONNECTOR.
Fig. 6. Wiring for multiple keyboard display modules.

KDM Display

The first line of the KDM display provides current status of the
burner sequence (STANDBY, PURGE, PILOT IGN, MAIN
IGN, RUN and POSTPURGE), timing information (PURGE,
PILOT IGN, MAIN IGN and POSTPURGE) in minutes and
seconds, hold information (PURGE HOLD), and lockout
information (Lockout, Fault Code, Message and Sequence),
see Fig. 8. The extreme right side of the first line will be either
blank or will show a small arrow pointing to the second line
followed by a two-letter code (DI—Diagnostic Information,
Hn—Fault History Information (where n equals the number of
the fault), and EA—Expanded Annunciator). When the arrow
and two-letter code are displayed, it indicates the second line
is showing a selectable message submenu. The second line
will display selectable or preemptive messages. A selectable
message supplies information for flame strength, system
status indication, system or self-diagnostics and
troubleshooting. A preemptive message has parentheses
around the message and supplies a detailed message to
support the sequence status information. A preemptive
message can also be a lockout message. A preemptive
message replaces a selectable message to support the
65-0090—4
MOMENTARY
PUSHBUTTON
SWITCH
5
3
2
13 Vdc
5
POWER
SUPPLY
4
L2
L1
(HOT)
2
M5006G
sequence status information. It also replaces a selectable
message after 60 seconds if it or a lockout message is
available. The 7800 SERIES Relay Module LED provide
positive visual indication of the Relay Module sequence. The
LED is energized simultaneously with the correct sequence
description.
S7810 DATA CONTROLBUS MODULE™
(MOUNTED ON 7800 SERIES RELAY MODULE)
1
2
120 OHM
RESISTOR
120 OHM
RESISTOR
1 2
7800 REMOTE KEYBOARD DISPLAY MODULE
1 THREE WIRE SHIELDED CABLE MAY BE REQUIRED. TWO 120
OHM TERMINATING RESISTORS ARE REQUIRED FOR
CONNECTIONS OVER 100 FEET. CABLE SHIELD MUST BE
TERMINATED TO EARTH GROUND AT BOTH ENDS. IF SHIELDED
CABLE IS NOT USED, TWISTED PAIR WIRE MUST BE USED.
2 WHEN CONNECTING THE KEYBOARD DISPLAY MODULE DATA
CONTROLBUS MODULE™, OR REMOTE RESET MODULE
EXTERNAL FROM THE CONTROL CABINET, APPROPRIATE
MEASURES MUST BE TAKEN TO MEET EN60730 SAFETY
LOW VOLTAGE REQUIREMENTS (SEE APPROVALS).
3 221818A OR C EXTENSION CAN BE USED IN PLACE OF THE
S7810 DATA CONTROLBUS MODULE™ IF DISPLAY IS TO
A CABINET DOOR.
Fig. 7. Wiring keyboard display module
for remote mounting.
DI = DIAGNOSTICS
H1 = HISTORY
EA = EXPANDED ANNUNCIATOR
SEQUENCE
STATUS
SELECTABLE
MESSAGE OR
PREEMPTIVE
MESSAGE
Fig. 8. S7800 Keyboard Display Module.
6
MOMENTARY
PUSH BUTTON
SWITCH
4
3 5
3
1
1
3 4 5
2
M5285C
FIVE WIRE CONNECTOR FOR
COMMUNICATIONS, REMOTE KEYBOARD
DISPLAY AND REMOTE RESET
M7412