![SolarEdge SE-MTR240-NN-S-S1 Installation Manual Download Page 18](http://html1.mh-extra.com/html/solaredge/se-mtr240-nn-s-s1/se-mtr240-nn-s-s1_installation-manual_1313764018.webp)
Figure 15: No-Neutral Grid
NOTE
Clamp the CT connected to
L1 CT
around the wire connected to
ØL1
.
When clamping the CT around the conductor to be measured, make sure the
arrow is pointing towards the grid.
1. Verify that the meter is powered OFF before making connections.
2. Insert the grounding/neutral cable, AC-side wires, CT wires, and RS485 cabling
through the drill guide(s) that were opened and connect them to the meter as
specified in the above diagrams.
3. Verify that the meter's termination DIP switches are set for "termination", as
specified in the section "Termination DIP switches" on page 9.
4. Connect the RS485 wiring to the inverter or Commercial Gateway.
To wire the inverter, see the procedure "connect the RS485 wiring to the
To wire the Commercial Gateway, see the procedure "connect the RS485 wiring
to the Commercial Gateway:" on page 19.
To connect the RS485 wiring to the inverter:
1. Remove the seal from one of the openings in communication gland #2 at the
bottom of the inverter and insert the RS485 wires from the meter through the
opening.
Chapter 2: Meter Installation
17
Energy Meter with Modbus Connection MAN-01-00270-1.3