5.6.
9
Communicat
ion wiring diagram of
lit
hium
bat
tery
When
installing
lit
hium
batt
eries
, the batteries' BMS
need to
connect
ed to the
BMS
terminals in the inverter. (the terminal locations within the inverter are
illustrated above) . The steps for wiring the BMS are as follows
:
1.
Unscrew the rubber nut on the waterproof cover of the energy storage
machine;
2.
Unscrew the six battery cover screws and remove the cover. Feed
the 485 wire
t
hrough
t
he
rubber nut
,
seal ring, threaded sleeve and
wat
erproof
cover
in
t
urn
. Once fed through,
connect
t
he
RS
485
w
ire
supplied to one of the
green
coloured (plugs) cable termination
point.
Connect
t
o
t
he corresponding port
within the battery labelled as BMS+/BMS-.
3.
Lock
t
he waterproof cover
w
ith
the
screws
provided and tighten the rubber nut to the
waterproof cover.
4
.
Pass the other end of the RS485 wire through the COMM port at the base of the inverter
and connect to the BMS terminals using the green coloured (plug) cable termination point.
we recommend using the Solar Shop appointed lithium battery
because the battery BMS communication has been designed to be
compatible with the GivEnergy Hybrid Inverter.
21
22
5.7
Earth Fault Alarm Connection
If this occurs the inverter will disconnect from the grid stopping power supply. The Inverter
will detect a low insulation resistance level during the preliminary stage of a ground leakage
on the DC side during operation with the grid. It will be visible with the red LED status on the
front of the inverter as well as an error and fault notification on the monitoring portal.
Usually this fault derives from a PV string, array or another DC connection point..
To remedy this issue, first ensure the inverter is fully and safely disconnected. The PV strings
could to be checked for earth faults in the first instance of trouble shooting. To determine
and locate where any earth fault exists, carry out the appropriate measurement tests of the
voltages between the positive / negative poles of each st
r
ing and the earth potential
(individually and together).
the BMS + / BMS – cables will connect
in
to the inverter.
