Output
Designation
1
TX 200/250
Induced draught control
T4e
Target voltage HV module 1
2
T4e
Target current HV module 1
3
T4e
Target voltage HV module 2
4
T4e
Actual current HV module 2
5
T4e 300/350
Position feedback of primary air flap
Standard configuration – Analogue module with address 1
Thermocouple
Designation
TI 350
Temperature sensor under the moving grate
Input
Designation
1
TI 350
Primary air flap FGR
2
TI 350
Secondary air flap FGR
3
TI 350
Pressure control flap FGR
4
TI 350
Pressure sensor above moving grate
5
TI 350
Pressure sensor in the FGR duct
:
8
TI 350
External power specification (0-10V)
If the power specification is used, the input set in the “Boiler - General settings” menu
must be adjusted accordingly.
Output
Designation
1
TI 350
Induced draught control
:
4
T4e
Pump slide-on duct cooling control
External power demand
The type of power demand can be set using the “
Source for ext. power demand (0 – off, 1 –
0-10 V, 2 – modbus)
” parameter. The percentages are transferred directly if the power demand is made via
modbus. If 0-10 V is selected as the source, the boiler release/boiler output can be controlled via an adjustable
input at the analogue module using a voltage signal.
If the signal at the input is above 35%, the boiler starts in continuous load mode; if the signal drops below 30%,
the boiler shuts down.
By default 0V = 0% and 10V = 100%. This can be changed using the
“Invert ext. power demand via
analogue input”
parameter.
To initiate start-up via the power demand, “
Automatic
” mode must be selected and the contact must be closed
if a release contact is used (“
Boiler release input available
” parameter = YES).
Necessary parameters for setting the power demand can be found in the “
Boiler – General settings” menu.
2
Power connection and wiring
Expansion modules
26
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
