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Profibus DP – CBF-B1/CBFF-B1 Burner Control Box
vor00161
Tab. 4 : Parameters
Nr.
Parameter
Range
CBF-B1
CBF-B1
typ.
CBFF-B1
CBFF-B1
typ.
01
Ionization current
0...30 µA
x
-
x
-
02
Burner shut-off limit
1...20 µA
x
1
x
1
03
Last program status prior to shut-off
0...5
x
0
x
0
04
Flame mode
1)
0/1
-
-
x
1*
05
Flox mode
1)
0/1
-
-
x
1*
06
∆
p-supervision
0/1
-
-
x
1**
07
Start-up attempts
1)
1...4
x
1
x
1
08
Automatic start-up attempts
0/1
x
0
x
0
0 = air valve closed
09
Behaviour air
valve at fault
1 = open air on heat demand
0/1
x
0
x
0
10
Safety time during start-up
1)
3/5/10 sec.
x
3
x
3
11
Safety time during operation
1)
1/2 sec.
x
1
x
1
12
Flame stabilizing period
0...25 sec.
x
2
x
2
13
Purge after reset
3)
0...25 sec.
x
0
x
0
14
Min. burner ON time
0...25 sec.
x
10
x
10
15
Min. burner OFF time
0...25 sec.
x
10
x
10
16
Air valve lag time on OFF
0...5 sec.
x
0
x
0
0 = unlimited
17
Manual
1 = limited ( 5 min.)
0/1
x
1
x
1
0 = cooling off
1 = with cooling air valve
2 = with air valve
18
Cooling
3 = with air and cooling air
valve
0...3
x
0
x
0
0 = no POC monitoring
19
POC-HGV
limit switch
1 = POC monitoring (USA
1) 2)
)
0/1
x
0
x
0
20
Time for air purge (at start up)
3)
1...25 sec.
x
1
x
1
1)
Parameters can only be changed by WS (Hardware key required).
2)
Burners with output > 117 kW, a main gas valve with limit switch has to be used. At start-up the limit switch must be closed. After activation
of the gas valve and after the safety period, the switch must have left the shut position.
[
p
roof
o
f
c
losure - (POC) acc. NFPA 86
]
3)
Air purge after reset: The larger parameter (13, 20) is relevant if burner starts with the heat demand signal. In normal mode, the time for air
purge from field 20 is active. The burner will start up (when command “heat” is set) in mode air purge (xx sec.) and afterwards it will heat for
the minimum activation time (setting) or as long as the heat demand signal is on. Minimum OFF time begins with termination of heat de-
mand. Burner will not restart until minimum OFF time has elapsed, even if heat demand is present. Even if the heat demand is cancelled
during air purge, the burner will fire for the minimum activation time.
x Parameter changeable / recallable
-
Parameter setting not available
*) Depending to the burner, FLOX-, Flame- or FLOX/Flam-mode can be parameterized.
( “0“ = disabled / “1“ = active)
**) CBFF-B1: delta-p switch can be parameterized for flame only mode. For FLOX mode, a delta-p switch for FLOX mode is necessary. A con-
nected and parameterized delta-p switch also controls air purge. If the delta-p s. does not switch a fault signal is shown but the air purge will
continue anyway
If CBFF-B1control box is ON, the parameters can be shown on the display by pressing the reset or info button repeatedly. A delta-p switch
can be connected to the control unit for the gas valve. In this case the gas valve will be closed if delta-p is too low.
Note.: An active command for air purge or cooling will block the signal for retrieving the temperature.