Appendix; Connection In Resu16H Prime Parallel Battery System; Setting For Communication Termination Resistor (About Section B); Power Cable (When Using A Combiner Box) - LG RESU16H Prime Manual De Instalación

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7. Appendix

7.1 Connection in RESU16H Prime parallel battery system

CAUTION
Parallel battery system can only be applied between products of the same energy.
7.1.1
Setting for communication termination resistor (About Section
B)
Section C
Section B
Section A
When you install the pack as primary, Turn ON the DIP switch for communication termination
resistor.
When you install the pack as secondary, Turn OFF the DIP switch for communication
termination resistor.
(already have)
(already have)
Inverter
Inverter
Terminating
Terminating
resister ON
resister ON
Primary
Primary
Pack
Pack
(already have)
(already have)
Inverter
Inverter
Terminating
Terminating
Terminating
Terminating
resister OFF
resister ON
resister ON
resister ON
Primary
Primary
Primary Pack
Pack
Primary Pack
Pack
Position
Position
: Middle side
: Last side
(already have)
(already have)
Inverter
Inverter
Terminating
Terminating
Terminating
Terminating
resister OFF
resister OFF
resister ON
resister ON
Secondary
Primary Pack
Primary
Primary
Pack
Pack
Position:
Pack
Position:
Position
Last side
Position
Middle side
: Middle side
: Last side
Last side means that it is connected one communication pair (from Secondary pack to Primary
pack)
In Case 2-2, Communication cable is connected by daisy chain. Communication line from
inverter should be connected secondary battery pack. And the additional communication line
is connected from secondary battery pack to Primary battery pack. Secondary communication
connector is fi xed 2 communication line. 1st line is connected from inverter to Secondary
battery pack. 2nd line is connected between Primary and secondary. If installed incorrectly, the
battery pack will not operate normally.
Section D
Section E
1. Case 1 : When installing one battery
pack, Turn ON the DIP switch for
communication termination resistor.
(It is ON when switches are lowered.)
2. Case 2-1 : When installing two
battery packs, and inverter has two
communication ports separately for
each battery pack, Turn ON the all
DIP switches for communication
termination resistor of both packs.
3. Case 2-2 : When you install the
two battery packs and inverter
has only one communication port
for both battery packs, Install the
secondary pack with the termination
resistor turned off in the middle
side. Install the primary pack with
the termination resistor turned on
in the last side. Middle side means
that it is connected two number of
communication pairs, (1
: from
st
inverter to Secondary pack, 2
: from
nd
Secondary pack to Primary pack),
ENABLE 12V
ENABLE 12V
ENABLE 12V
ENABLE 12V
ENABLE GND
ENABLE GND
ENABLE GND
ENABLE GND
RS485 A+
RS485 A+
RS485 A+
RS485 B-
RS485 B-
RS485 B-
CAN Hi
CAN Hi
CAN Lo
CAN Lo
CAN Lo
Primary
Primary Pack
Secondary Pack
Pack
In the case of products using a combiner box, communication lines can also be connected
through the combiner box.
※ The communication termination resistor can be changed depending on the inverter model,
not the battery's own condition. Therefore, you must refer to the battery communication
connection description in the inverter installation guide. Below are some examples
according to the inverter model.
[When only 1 pack is installed]
SMA
SUNNY BOY
Inverter model
STORAGE
2.5/3.7/5.0/6.0
(Case 1)
Primary / Secondary
Primary
Communication
ON
resistor
[When installing 2 packs]
SMA
SUNNY BOY
Inverter model
STORAGE
2.5/3.7/5.0/6.0
(Case 2-1)
Primary / Secondary
Primary
Primary
Communication
ON
ON
resistor
7.1.2

Power cable (When using a combiner box)

Power cable is connected by combiner Box. Positive and negative line should be connected
same polarity line by combiner box. Joint connection is in the combiner box. If installer
connected reverse polarity position of the power line, the battery system is not normally
operated.
( + )
( + )
(+)
(+)
GND
GND
GND
GND
( - )
( - )
(- )
(-)
Primary
Secondary
Primary Pack
Secondary Pack
Pack
Inverter
Inverter
RS485 A+
RS485 B-
CAN Hi
CAN Hi
CAN Lo
Secondary
Pack
SolarEdge
Other models
(Case 1)
Energy Hub (Case 1)
Primary
Primary
ON
ON
SolarEdge
Other models
Energy Hub (Case 2-2)
Primary
Secondary Refer to the inverter
installation manual.
ON
OFF
Inverter
Inverter
Pack
Combine
Combine box
box
19

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