16
5 Commissioning
5.1.6 Character of the Output Channels
Select parameter 356 - 359 (channel 1 to channel 4).
Enter the type of control element which is connected.
Nr. FMS ETA Short Text Description Min Max Default
356 2 2 Fkt. K Function definition channel1 0 6 0
Category = channel configuration and broken wire
detection
In this parameter you define the type of actuator which
controls the respective output channel. By this you are
indirectly determining the channel’s behaviour at pre-
purge, band shifting, changes of the burner-firing rate
and drift compensation. Under certain circumstances,
this possibly may affect some special functions (e.g. if
the channel is configured to recirculation or flue gas).
0 = Channel OFF (broken wire monitoring and indication
in the display are active further on / channel switch
off with P 366 - P 373)
1 = recirculation
2 = fuel
3 = combustion air
4 = flue gas
5 = mechanic fuel/air ratio control
6 = atomizer steam (like fuel, but without pre-purge of
the channel: switch off determination
of range limits)
Behaviour of the actuators:
steam = Remains CLOSE until the pre-purge time
has expired. Thereafter the actuator runs to
ignition position.
REZI = Runs OPEN after the configured pre-purge
time, even if terminal 54 has a signal.
In regular operation terminal 54 usually have a
signal
flue gas = Runs completely open in BE and remains
open until ignition. Subsequently the actuator
runs to fuel/air ratio control. At start without
VO, ignition
does not start until flue gas is completely open.
mech. fuel/air ratio control = Acts like air in VO.
Default settings at delivery (example):
channel 1 = air
channel 2 = fuel (oil)
channel 3 = fuel (gas)
channel 4 = air
To Next Page
Loading...
