Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
3 Product description
83054802 1/2018-07 La
31-228
3.3.17 External load controller (X62)
2
3
4
X5-03
ON/OFF
1
3
2
L
2
3
4
5
X62
0-10V
4-20mA
0
FE
1
+
-
0/2 ... 10 V
0/4 ... 20 mA
For operation with external load controller on the analogue input, parameter
LC_OptgMode
must be set to
The contact for heat demand is connected to input X5-03:1 (burner ON/OFF).
The analogue load signal is connected to terminals X62:2/4 (0/2-10 V) or
X62:3/4 (0/4-20 mA). In parameter
Ext Inp X62 U/I
the input must be
matched to the analogue signal [ch. 6.12.4].
Modulating operation
In modulating operation, parameter
MinActuatorStep
determines the minimum
correcting element step [ch. 6.12.9].
Signal on X62
Load W-FM
3 … 4 mA
20 %
20 mA
100 %
Multi-stage operation (fuel oil only)
In multi-stage operation a hysteresis of 1 mA exists between the operating points,
which eliminates unnecessary load changes.
Two stage:
Signal on X62
Load W-FM
3 …
5
… 12 mA
Stage 1
13 …
15
… 20 mA
Stage 2
Three stage:
Signal on X62
Load W-FM
3 …
5
… 7 mA
Stage 1
8 …
10
… 12 mA
Stage 2
13 …
15
… 20 mA
Stage 3
3.3.18 External load controller (Bus)
X5
0
interface
For the operation with external load controller via Bus connection, parameter
LC_OptgMode
must be set to
Ext LC Bus
,see [ch. 6.12.2]. The building
management system specifies the load signal via the bus connection.
In modulating operation, parameter
MinActuatorStep
determines the minimum