14
This system is supplied with split-core CTs for installation
without interruption to the electrical service. The CTs must be
mounted on the primary electrical bus, between the main
service breaker disconnect and the utility’s energy meter. This
is important to ensure all loads and generation are captured for
optimum performance of the solar self consumption control
algorithms.
7.3 RS-485 communication connection
The battery system communicates with the meter using the
Modbus protocol over an RS-485 network. Shielded twisted
pair cable is required.
Note: Shield wire connected to earthing terminal at a
single point only. Terminate the cable as shown
(TIA/EIA 568B standard):
Signal
RJ-45 Pin
Wire color
GND
3
green/white
A
4
blue
B
5
blue/white
8 Droplet Ethernet connection to Home Router
s
A Wi-Fi connection to the battery system is permitted for remote monitoring of the system, however, a permanent
connection is strongly recommended for reliable communication access to the system. The Ethernet wiring from
the battery system must be connected to a customer supplied router. A permanent Ethernet connection to the
battery system requires external wiring. Compliance with local
electrical code is the responsibility of the installer. Conduit and
fittings connected to this equipment must ensure compliance with
the IEC environmental rating as per the equipment ratings.
8.1 Ethernet cable connection
The Ethernet connection is a standard RJ-45 straight through
configuration. Standard EIA/TIA termination practices are
recommended.
1.
Remove the knockout dedicated for the Ethernet connection.
2.
Secure the communication cable strain relief (conduit fitting, if
applicable).
3.
Terminate the routed cable as a straight-through Ethernet
connection.
4.
Test the cable prior to connection.
5.
Connect the cable to the Droplet’s Ethernet port as shown.
9 DRED Device Connection: (Australia)
1.
Connect the DRED device to the DRM Port at as shown.
Ethernet
1
Figure 11: Droplet Ethernet connection.
Energy meter input
Figure 10: Meter comunication connection.
Figure 12: DRED device connection.
Summary of Contents for Evolve ESS AU 13
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