S7999B SYSTEM DISPLAY
11
65-0283—2
Fig. 8 depicts the configuration when COM 1 is used for ControLinks™ R7999 commissioning.
Fig. 8. Local S7999B configuration with ControLinks™ commissioning.
In this configuration, the R7999 is connected to COM 1 and not to the Controlbus. When the burner/boiler system is configured in
this way it is not visible at the System S7999B (because COM 1 is not connected to the System S7999B).
Fig. 9. Local S7999B wiring with ControLinks™ commissioning.
S7810M
MODBUS
RM78xx
BURNER
CONTROL
S7830
EXPANDED
ANNUNCIATOR
UDC2500
THERMAL
SHOCK
S7999B
SYSTEM DISPLAY
COM 1
M24226
COM 2
MASTER
SLAVE
LOCAL
MODBUS
CONTROLBUS
SLAVE
UDC2500
STACK
TEMPERATURE
UDC2500
FEED PUMP
LEVEL CONTROL
SLAVE
UDC2500
PID LOAD
CONTROL
SLAVE
UDC2500
STEAM/FUEL
FLOW
SLAVE
SLAVE
R7999
FUEL AIR
RATIO CONTROL
FCI
MODBUS BAUD RATE MUST BE SET FOR 19200.
1
1
M24236
120 VAC
L1
L2
120 VAC (L1)
N
L
NEUTRAL (L2)
EARTH GROUND
V+
12 DC OUT+
V
DC OUT-
(COMMON/GND)
V ADJ
MEAN WELL S-25-12
POWER SUPPLY
1 2 3 4 5 6 7 8 9
GND
(C)
+12 +12 (b) (a) N/C N/C (a) (b)
S7999B
SYSTEM DISPLAY
3
4
4
1
COM1
COM2
CONNECT SHIELD TO EARTH GROUND.
CONNECT ALL THREE “C” WIRES TO V- TERMINAL
ON POWER SUPPLY.
3
1
2
R7999
FUEL AIR
RATIO CONTROLLER
C B A
1
2
SEE 65-0249 FOR CONTROL BUS (LOCAL RS-485
COMMUNICATION BUS) WIRING.
UP TO A TOTAL OF 99 S7810M AND UDC CONTROLLERS CAN BE
CONNECTED TO THE S7999B. SEE 65-0249 AND UDC MANUALS
FOR WIRING.
MODBUS BAUD RATE MUST BE SET FOR 19200.
5
5
S7810M
MODBUS
MODULE
8
7
6
UDC2500
STACK
TEMPERATURE
16
17
18
UDC2500
PID LOAD
CONTROL
16
17
18
UDC2500
THERMAL
SHOCK
16
17
18
C
A
B
D-
D+
SHLD
D-
D+
SHLD
D-
D+
SHLD
120
Ω,
1/4 WATT RESISTOR BETWEEN TERMINALS
A AND B OF THE MODBUS AT THE FARTHEST S7810M
OR UDC MAY BE NECESSARY FOR LONG RS-485 RUNS.
7
7
SEE 65-0238 FOR R7999 WIRING.
6
6