Installer documentation
Installer documentation
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[LMA1] Modbus RTU Screw Adapter

Description

High quality RJ45 (male) to 3-screw connector.
Use as set LMGS+LMA1 for direct serial Modbus connection of the inverter to the FlexiObox.

LMA1 always to be used in combination with LMGS Modbus RTU generic cable.


LMA1 adapter is sold per 20 pieces (pack).

LMA1-20.jpg

Use this adapter for easily setting up a customized Modbus RTU wired 3-screws connection.


From the top view:

left screw

center screw

right screw

Data (+)

Data (-)

GND (ground - shielding)


Product images


LMA1 schematics.jpg


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  • LMGS Modbus RTU generic cable (mandatory combination)

  • LMA2: additional SolaX/Solinteg/Fronius adapter

  • LMA3: additional Alpha ESS adapter

  • LSF2: S/FTP shielded network cable 2m


Installation instructions

Use the LMA1 adapter together with LMGS Modbus RTU generic cable.

Disconnect the 3-screw terminal part from the LMA1 adapter.
Connect Data (+) and Data (-) respectively to the left and middle screw.
If the inverter cable has shielding (recommended), connect the shielding to the right GND screw.

Tip: seal the screw- and dismantled cable part with a heat shrink tube

  • Plug the 3-screw part back into the LMA1 adapter.

  • Plug the cabled LMA1 into the LMGS Modbus RTU generic cable.

  • Connect the USB-A side into the FlexiObox.

You will now have following connections:

FlexiObox ← USB -> LMGS ← RJ45 -> LMA1 ← screws + own cable -> Inverter


Technical details

Data


Product nummer:

LMA1

Color:

Black/Green

Weight:

20 gram

Cable length:

n/a

Connector 1:

RJ45 (male)

Connector 2:

3-screw terminal

GTIN-13 ref:

5430004172222

Documentation


Product datasheet:


EU safety leaflet:


CE declaration:


Certification EMC/ROHS/CEBEC:


Tips

  • This adapter can only be used in conjunction with LMGS Modbus RTU generic cable to achieve direct serial Modbus RTU connection between the inverter and FlexiObox.

  • LIFEPOWR recommends using Modbus RTU rather than Modbus TCP:

    • Modbus RTU uses a direct serial connection between FlexiObox and inverter

    • Modbus TCP uses the local network and might be slightly less stable or less fail-proof


Related: where to order this product.