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SSB
6720892984 (2019/02) US
BURNERS cascade | 9
3
BURNERS cascade
3 .1
Burner cascade communication setup
In order for the system to work for cascade the communication busses
must be parallel linked together. The managing burner uses the AL-bus
connection on J6 1-8 for burner cascade. The depending burner must be
connected to the managing burner on the J8 AL-bus connection.
It is important that the power on the J8 AL-bus connection on all
depending burners is switched to the OFF position. Also all burners in the
cascade system must have a unique address selected.
Demand: 0-10V / OpenTherm / On-Off
T outside
Boiler sensor
J6
J8
90xMN
-
90xMN –
––
D2
90xMN D1
Boiler manager
3 .2
Setting the burner address (Rev . 4 .0 .905 .15250)
The managing burner of the cascade system is connected to the AL-bus
connection on J6 1-8. This connection also provides the power for the
communication bus. The depending burners are all parallel connected to
the managing burner communication bus.
Since the bus power is provided by the managing burner on J6 1-8,
switch S1 must be set in the OFF position on all controls.
ON
OFF
J8
J11
The burner address can be set through an e2prom setting or the
Dip-Switch input available on the control. Which option is used can be
set with the Dip-switch configuration parameter on the Labvision PC
software. Each burner must be configured with its own unique address.
3 .2 .1
E2prom address selection through e2prom setting
When the Dip-switch configuration is set to disabled the burner address is
selected with an e2prom parameter. This setting can be changed using a
computer with LabVision PC software.
Burner
address
Burner Operation
Function of
sensor input
J5 (7-15)
LabVision Device
Address
0 (default) Standalone burner No function
100
1
1st boiler
(Managing)
System sensor 100
2
2nd boiler
(dependent)
No function
101
3
3rd boiler
(dependent)
No function
102
4
4th boiler
(dependent)
No function
103
$
$
$
8
8th boiler
(dependent)
No function
107
3 .2 .2
E2prom address selection through dip-switch input
When the Dip-switch configuration is set to Cascade burner address
the burner address is selected with the dip-switch input. The switches
are numbered 1 to 8. When an invalid dip-switch setting is selected the
burner address will be set to a standalone burner. When the Dip-switch
configuration is set to Cascade burner address the E2prom parameter is
not used.
Dip-switch setting
Burner
Operation
LabVision
Device
Address
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
Standalone burner
100
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1st burner
(managing)
100
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
1
ON
DIP
2 3 4 5 6 7 8
2nd burner
(depending)
101
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