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Siemens LMV5 Quick Start Manual page 33

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Section 3 Wiring
Wiring Introduction 3-1
The LMV5 can be wired a number of different ways due to the flexibility of this Burner / Boiler
Management System (BMS). The specific application dictates how the BMS is to be wired. This
section details the most common applications.
The Parameter settings outlined in Section 4 can enable, disable or change the functionality of
many terminals on the LMV5. Thus, wiring and parameter settings work together to make the
LMV5 an extremely versatile BMS.
This section includes terminal descriptions (Section 3-2), and extensive wiring diagrams
(Section 3-3), that detail applications of the LMV5 BMS.
Terminals
The connection terminals of the LMV5 are RAST 5 connectors (plugs). Line voltage plugs are
made so that they will only fit into one socket of the LMV5 eliminating the possibility of inserting
a plug into an incorrect socket.
Each plug is designed to connect one external device or a small group of external devices, such
as gas valves, to the LMV5. This being the case, each group of plugs on the front of the LMV5
provide line voltage and grounds so that an additional terminal strip is not necessary.
Note: All protective earth grounds (PE), neutrals (N) and lines (L) are common
inside the LMV5 .
Figure 3-1.1 Numbering scheme on line voltage (RAST 5) terminals of the base unit
X9-
01.
04
Plug Group
Plug Number in Group
Pin Number on Plug
Dashes or dots can be used interchangeably between the numbers shown above.
Figure 3-1.2 Numbering scheme on low voltage (RAST 2.5) terminals of the base unit
X62.
2
Plug Number
Pin Number
Terminal Descriptions (Section 3-2) provides a map outlining exactly where the line and low
voltage plugs are located.
For each plug, Pin 1 is marked on the casing of the LMV5 as well as the PLL52 module.
LMV5 QSG Rev 4
Sec 3
Pg 1
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