The two agitators take it in turns to supply the boiler
with fuel. In order to ensure that the fuel deposit is
emptied at a steady rate, the system switches between
the two agitators automatically.
1 Light barrier (only with [Light barrier in drop chute]
option)
2 Consumers of the conveying system (the boiler)
3 Conveying system On/Off switch.
= switched on
= switched off
With the On/Off switch, a single conveying
system can be switched off. The second conveying
system automatically takes over once the fuel has
been conveyed to the boiler.
The agitator and the screw are shown in green as soon
as they begin to transport fuel. They are displayed in
grey when not in operation or when the screw is turning
in reverse in order to remove a blockage.
A light barrier for the drop chute is supplied ex-
works for controlling the fuel conveying system.
For external conveying systems, the light beam is
available as an option.
If the drop chute is filled with enough fuel, the light
barrier is interrupted and displayed in red. If the light
barrier is displayed in green, there is no fuel or insuffi-
cient fuel in the drop chute.
6.11.2.1 Switch. time (for double agitator)
Explanation
This parameter sets the length of time for which an
agitator is in operation to supply fuel. After this time, a
switch to the second agitator follows automatically.
You can find this parameter in the boiler function
block under:
Intermediate conveyor screw
Double agitator
Switch. time
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