Honeywell S7999D1048 - Page 63

S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
63 65-0321—01
Setpoints:
High or Low temperature alarm (0-500°F)
FGR Permissive (0-500°F)
APPLICATION NOTE
Application: Stack Temperature
Description: Monitor stack temperature and alarm when temperature is too high. Optionally output an
FGR permissive signal when stack temperature reaches permitted level.
M24239
FLUE GAS
PERMISSIVE
CIRCUITRY
MODBUS COMMUNICATION
HONEYWELL S7810M
L1
ALARM (HIGH
STACK TEMP)
L1
D+
+
-
R
D-SHIELD
J THERMOCOUPLE
26
27
25
17 1816
6
4
5
9
8
7
L2
L1
G
C A B
L1
L2
UDC
CONTROLLER
Digital Inputs: None Digital Outputs: High Temperature Alarm (ON
when at or above alarm
setpoint, OFF when below
alarm setpoint).
Analog Inputs: Stack temperature sensor (0-
500°F)
Analog Outputs: None
Application File:
stack01.nge stack02.nge
Description
0-500°F High Stack Temperature 0-500°F High Stack Temperature
FGR Permissive
Controller Model
UDC2500
DC2500-EB-200R-100-00000-00-0
UDC2500
DC2500-EB-200R-100-00000-00-0
Algorithm:
CTRALG
ONOF (ON/OFF) ONOF (ON/OFF)
TIMER
DIS DIS
Output:
OUTALG
RLY (Time Simplex) RLY (Time Simplex)
Input 1:
IN1TYP
J L J L