Power Supply To The Lmv51 - Siemens LMV51 Series Basic Documentation
Burner control with integrated fuel / air ratio control and load control for forced-draft burners
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Also See for LMV51 Series:
- Basic documentation (299 pages) ,
- Manual (327 pages) ,
- Installation manual (21 pages)
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Example 1
Max. bus cable length
LMV - AZL: 80 m
AGG5.630 / 631
Power supply
line max. 3 m
AC2 12 V
AC1 12 V
12 V
12 V
12 V
230 V
Power trafo 1
AGG5.2xx
Note on example 1
Siemens Building Technologies
HVAC Products
9.1 Power supply to the LMV51... system
In principle, the bus topology always has a line structure and, therefore, has a start and
an end node.
The individual bus users are connected in series, whereby the respective end nodes are
terminated by bus terminating resistors.
The basic unit is a component of the communication line and is looped in between the
AZL51... and the actuators.
In the system, the AZL51... always assumes the function of a bus end node. The
required bus terminating resistor is already integrated in that case.
With the actuators, the last user becomes the bus end node (here, the internal bus
termination must be activated via a connecting plug).
The other node users within the line structure are configured without terminating
resistor.
Installation of all components in the burner; bus cable «LMV51... « ACT»
< 20 m
Fixed internal
bus termination
AZL
Sub-D
connector
Rast 3.5
Trafo
M
X52
X51
F3 T4
F2 T4
X10-01
F1 T6.3
CANL
CANH
LMV51... basic unit
X3-04
N L
Total length of bus cable £ 100 m
Basic Documentation LMV51...
9 Mounting, electrical installation and service
ACT 1
SQM 4x
No bus
termination
X1
X50
7550a03E/0202
ACT 2
ACT 3
SQM 4x
SQM 4x
No bus
No bus
termination
termination
X2
X1
X2
X1
Max. bus cable length
LMV - SQM4x: 20 m
AGG5.640 / 641
Jumper
ACT 4
SQM 4x
Bus
termination
X2
X1
X2
137/157
CC1P7550en
29.05.2002
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