Siemens LMV 5 Series, Technical Instructions, Page: 35 / 374

LMV Series Technical Instructions
Document No. LV5-1000
SCC Inc. Page 1 Section 2
2-1: Wiring Introduction
The LMV5 is a very flexible burner control. As such, there are many different ways to wire it. The
specific application will dictate the wiring required. This section details the most common applications.
The parameter settings outlined in Section 3 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 2-2) and extensive wiring diagrams (Section 2-3) that
detail the many applications of the LMV5.
Terminals
The connection terminals of the LMV5 are RAST 5 and RAST 2.5 connectors (plugs). Line voltage plugs
are keyed 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. Each group of plugs on the front of the LMV5 provides 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.
X9- 01. 04
Plug Group Plug Number in Group Pin Number on Plug
Figure 2-1.1: Numbering Scheme on
Line Voltage
(RAST 5) Terminals of the LMV5
Note: Dashes or dots can be used interchangeably between the numbers shown above.
X62. 2
Plug Number Pin Number
Figure 2-1.2: Numbering Scheme on
Low Voltage
(RAST 2.5) Terminals of the LMV5
Terminal descriptions (Section 2-2) provide 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 on the PLL52 module.
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