CyberPower CPSHB300ETR User manual

User’s Manual
CPSHB300ETR
Cyber Power Systems, Inc.
www.cyberpower.com

Contents
1 Information on this Manual......................................................................................................... 1
1.1 Validity................................................................................................................................. 1
1.2 Target Group ........................................................................................................................ 1
1.3 Symbols Used....................................................................................................................... 1
2 Safety ........................................................................................................................................ 2
2.1 Intended Use........................................................................................................................ 2
2.2 Safety Precautions ............................................................................................................... 2
2.3 Assembly Warnings.............................................................................................................. 3
2.4 Electrical Connection Warnings ............................................................................................ 4
2.5 Operation Warnings ............................................................................................................. 4
2.6 Symbols on the Inverter ....................................................................................................... 5
3 Product Description ................................................................................................................... 6
3.1 CPS Hybrid PV Inverter Overview ......................................................................................... 6
3.2 Size and Weight.................................................................................................................... 6
3.3 Transportation ..................................................................................................................... 7
3.4 Storage of Inverter ............................................................................................................... 7
3.5 The Advantage of CPS Hybrid PV Inverters ........................................................................... 7
4 Unpacking.................................................................................................................................. 8
5 Installation ................................................................................................................................ 9
5.1 Safety Instruction................................................................................................................. 9
5.2 Selecting the Installation Location........................................................................................ 9
5.3 Electrical Connections ........................................................................................................ 10
5.3.1 Safety.............................................................................................................................. 10
5.3.2 Wiring PV Input............................................................................................................... 10
5.3.3 Wiring External Battery Input.......................................................................................... 11
5.3.4 Wiring AC Output............................................................................................................ 13
6 Commissioning ........................................................................................................................ 13

6.1 Commission the Inverter .................................................................................................... 13
6.2 Operation Modes ............................................................................................................... 14
6.3 Charge Current Setting ....................................................................................................... 15
6.4 LEDs Indicators................................................................................................................... 16
7 Start-up and Shut-down the Inverter ....................................................................................... 19
7.1 Start-up the Inverter for On Grid Operation ....................................................................... 19
7.2 USB Charger Only .............................................................................................................. 19
7.3 Start-up the Inverter for Off Grid Operation...................................................................... 19
7.4 Shut-down the Inverter...................................................................................................... 20
8 Maintenance ........................................................................................................................... 21
8.1 Replace the Internal Batteries ............................................................................................ 21
8.2 Replace the Fuse ................................................................................................................ 22
9 Decommissioning ...................................................................................................................... 23
9.1 Dismantling the Inverter .................................................................................................... 23
9.2 Packing the Inverter ........................................................................................................... 23
9.3 Disposing of the Inverter.................................................................................................... 23
10 Specification ............................................................................................................................ 24
10.1 Specification of CPSHB300ETR.......................................................................................... 24
10.2 Torque Values................................................................................................................... 25
11 Contacts .................................................................................................................................. 26

Table of Figures
Fig. 2-1 Energy storage system ................................................................................................................ 2
Fig. 3-1 Layout of CPSHB300ETR.............................................................................................................. 6
Fig. 3-2 Dimensions of CPSHB300ETR ...................................................................................................... 7
Fig. 4-1 Components included in the scope of deliver.............................................................................. 8
Fig. 5-1 Permitted and prohibited installation positions........................................................................ 10
Fig. 5-2 Clearance space for installation ................................................................................................ 10
Fig. 5-3 Grid output and standalone output connections....................................................................... 11
Fig. 5-4 Connect PV connectors to inverter............................................................................................ 12
Fig. 5-5 The location of extended battery connector.............................................................................. 13
Fig. 7-1 Power flow of On-Grid operation .............................................................................................. 19
Fig. 7-2 Power flow of Off-Grid operation.............................................................................................. 20
Fig. 8-1 Procedure of replacing batteries ............................................................................................... 21
Fig. 8-2 Grid O/P fuse replacement ....................................................................................................... 22

Table of Figures
Table 6-1 Charge current setting ......................................................................................................... 15
Table 6-2 LEDs indicators for On Grid operation.................................................................................. 16
Table 6-3 LEDs indicators for Off Grid operation.................................................................................. 17
Table 10-1 Specification...................................................................................................................... 24
Table 10-2 Torque values .................................................................................................................... 25

User Manual 1 Hybrid CPSHB300ETR
1 Information on this Manual
1.1 Validity
This installation guide contains installation, commissioning, basic troubleshooting and tech-support contact
information regarding CyberPower’s CPS Hybrid PV inverter CPSHB300ETR
Using this guide, users will be able to install and operate the inverter rather easily. This manual does not
cover any details regarding equipment connected to the inverter.
1.2 Target Group
This manual is most suitable for users who have basic knowledge around electricity and electrical devices.
Note: CyberPower Systems, Inc. will not inform users for any changes taken place within this guide.
1.3 Symbols Used
The following types of safety instructions and general information appear within this document:
Symbol Description
DANGER indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, can
result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, can
result in minor or moderate injury.
NOTICE indicates a situation which, if not avoided, could result in
property damage.
Information that you must read and know to ensure optimal
operation of the system.

User Manual 2 Hybrid CPSHB300ETR
2Safety
2.1 Intended Use
The CPS Hybrid PV inverter can be used to converter photovoltaic energy to battery and/or to balance the
attached load power. Please note, that charging the batteries takes presidency over all other functions!
It can supply power to appliances when public grid is not available. The unit contains 2 x 12V/9Ah Sealed
Lead Acid batteries in 24VDC configuration that can be expanded through the use of an external battery
array. It also has a built-in USB charger that provides 2ports with 2A totally maximum, able to charge
connected 5VDC USB devices, such as Smart Phones, Tablets, Cameras, etc.
Hybrid Energy Storage System Overview:
Fig. 2-1 Energy storage system
Like the above drawing indicates, a complete energy storage system consists of PV module, CPS hybrid PV
inverter, public grid and other components.
2.2 Safety Precautions
The CPS hybrid series is designed and tested according to international safety requirements; however,
certain safety precautions must be observed when installing and operating this inverter. Read and follow all
instructions, cautions and warnings in this installation manual.

User Manual 3 Hybrid CPSHB300ETR
2.3 Assembly Warnings
Prior to installation, inspect the unit to ensure absence of any
transport or handling damage, which could affect insulation
integrity or safety clearances; failure to do so could result in
safety hazards.
Unauthorized removal of necessary protections, improper use,
incorrect installation and operation may lead to serious safety,
shock hazards or equipment damage.
In order to minimize the potential of a shock hazard due to
hazardous voltages, cover the entire solar array with dark
material prior to connecting the array to any equipment.
Grounding the PV modules: Comply with the local requirements for
grounding the PV modules and the PV generator.
CyberPower recommends connecting the generator frame and other
electrically conductive surfaces in a manner which ensures continuous
conduction and ground these in order to have optimal protection of
the system and personnel.

User Manual 4 Hybrid CPSHB300ETR
2.4 Electrical Connection Warnings
2.5 Operation Warnings
Make all electrical connections (e.g. conductor termination, fuses, PE
connection, etc.) in accordance with prevailing regulations. When
working with the inverter powered on, adhere to all prevailing safety
regulations to minimize risk of accidents.
The unit may only be operated with PV generators (modules and
cabling) with protective insulation. Do not connect any source of energy
other than PV modules to the CPS hybrid inverter.
Systems with inverters typically require additional control (e.g.,
switches, disconnects) or protective devices (e.g., fusing circuit breakers)
depending upon the prevailing safety rules.
Please read this manual carefully, the manufacturer or supplier is not
responsible for damage caused by incorrect operation, installation,
wiring, transport, etc.
When energy flows into the house grid through the inverter, household
devices or lighting consume that energy. Leftover energy may be fed into the
public grid. If you choose this function and indeed there is left-over power
fed into the public grid, depending on your connection, the energy
consumption meter might be spinning backwards!
Ensure all covers and doors are closed and secure during operation.
Although designed to meet all safety requirements, some parts and
surfaces of Inverter are still hot during operation. To reduce the risk of
injury, do not touch the surfaces while Inverter is operating.
Incorrect sizing of the PV plant may result in voltages being present
which could destroy the inverter.
Anytime the inverter has been disconnected from the power network,
use extreme caution as some components can retain charge sufficient
to create a shock hazard; to minimize occurrence of such conditions,
comply with all corresponding safety symbols and markings present on
the unit and in this manual.
In special cases, there may still be interference for the specified
application area despite maintaining standardized emission limit values
(e.g. when sensitive equipment is located at the setup location or when
the setup location is near radio or television receivers).In this case, the
operator is obliged to take proper action to rectify the situation.

User Manual
2.6 Sym
b
b
ols on t
h
Symbol
h
e Invert
e
O
b
O
b
D
a
Th
th
e
N
o
In
s
in
c
D
a
Pr
i
all
Ri
s
Th
op
D
o
ac
c
e
r
b
serve the d
o
b
serve all do
a
nger to life
d
ere high vol
t
e
live parts.
o
tice
s
tall and op
e
c
orrect insta
a
nger to life
d
i
or to perfor
sources an
d
s
k of burns
e product’s
s
eration.
o
n’t dispose
c
ordance wi
t
5
o
cumentati
o
o
cumentatio
n
d
ue to high
v
t
age inside
t
e
rate the pr
o
llation or o
p
d
ue to high
v
r
ming any w
o
d
wait for 2
m
s
urfaces ar
e
of the prod
u
th the appli
c
Explan
a
o
n
n
supplied
w
v
oltage
t
he product,
o
duct must
f
p
eration ma
y
v
oltage
o
rk on the
p
m
inutes.
hot during
o
u
ct together
c
able dispo
s
a
tion
w
ith product
don’t open
o
llow the m
y
damage th
roduct, alw
a
o
peration.
D
with the h
o
al regulatio
n
Hybri
d
the enclosu
m
anual and i
n
e product.
a
ys disconn
e
D
on’t touch
d
o
usehold wa
n
s for electr
o
d
CPSHB300ET
R
re or touch
n
struction,
e
ct it from
d
uring
s
te. In
o
nic waste.
R

User Manual 6 Hybrid CPSHB300ETR
3Product Description
3.1 CPS Hybrid PV Inverter Overview
Fig. 3-1 Layout of CPSHB300ETR
Position Description
A Handle
B Transparent Cover
C USB Charger
D LED Indicators (4 LEDs)
E Operation Button
F PV Input Connectors
G External Battery Connector
H AC-out Power Outlet
I AC-in Power Outlet / GRID
J Tool for Removing PV Connectors
3.2 Size and Weight
The dimensions of CPSHB300ETR as Fig. 3-2, the weight is 9kg includes batteries.

User Manual
3.3 Tran
s
The inverte
r
proper ele
c
However, tr
inspect the
i
damage to
t
visible dam
a
original or
e
3.4 Stor
a
If you wan
t
to store th
e
The u
n
For th
-10 ℃
a
After l
o
compr
e
3.5 The
A
Features of
Us
Ve
2
U
Ex
t
*1 Hig
h
keep li
g
s
portatio
r
is thoroug
c
trical and
m
ansport da
m
inverter up
o
t
he packagi
n
a
ge to the i
n
e
quivalent p
a
a
ge of In
v
t
to storag
e
e
inverter.
n
it must be
e life and
a
nd +40 ℃ .
o
ng term s
t
e
hensive t
e
A
dvanta
g
CPSHB300E
T
er friendly
h
ry easy to i
n
U
SB charger
t
endable ba
t
h
power ope
g
ht or no po
w
F
n
hly tested
a
m
echanical
m
age may s
t
o
n delivery.
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n
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d
n
verter. We
w
a
ckaging sh
o
v
erter
e
the inver
t
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capacity
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And the st
o
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orage, loc
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e
st before i
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T
R are follo
w
h
andle, mak
i
n
stall
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2
t
tery capaci
t
ration can c
a
w
er from A
C
F
ig. 3-2 Di
m
a
nd inspect
e
condition.
S
ill occur. Th
e
I
mmediatel
y
d
icates that
w
ill be glad
t
o
uld to be u
s
t
er in your
riginal pac
k
o
f battery,
o
rage relat
i
a
l installer
o
n
stallation
Hybrid P
w
s:
i
ng carrying
2
A maximu
m
t
y
a
use high t
e
C
-Out outlet
7
m
ensions of
e
d strictly b
e
S
pecial pac
k
e
shipping c
y
notify the
r
the inverte
r
t
o assist yo
u
s
ed.
warehous
e
k
age and d
e
the stora
g
i
ve humidi
t
o
r service
d
V Invert
e
very conve
n
m
charging c
u
e
mperature
a
during USB
CPSHB300E
T
e
fore delive
r
k
aging ensu
ompany is
r
r
esponsible
s
r
may have
b
u
, if require
d
e
, you shou
e
siccant m
u
g
e temper
a
t
y should b
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d
epartmen
t
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rs
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ient
u
rrent in tot
a
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nd influen
c
charging o
p
T
R
r
y. Our inve
r
r
es safe an
d
esponsible i
s
hipping co
m
b
een dama
g
d
. When tra
n
ld choose
a
u
st be left i
n
a
ture shou
l
e
always b
e
t
of Cyber
P
a
l *1
c
e the chargi
eration.
Hybri
d
U
rters leave
o
d
careful t
r
i
n such case
m
pany if yo
u
g
ed or if yo
u
n
sporting th
e
a
n appropr
n
the pack
a
ld be alw
a
e
tween 0 a
n
P
ower shou
i
ng current
o
d
CPSHB300ET
R
nit: mm
o
ur factory
r
ansportatio
s. Thorough
u
discover a
n
u
discover a
n
e
inverter, t
h
iate locati
o
a
ge.
a
ys betwe
e
n
d 95%.
ld perform
o
f USB, plea
s
R
in
n.
ly
n
y
n
y
h
e
o
n
e
n
a
s
e

User Manual
4Unp
Before ope
n
After openi
damages. If
contain the
ackin
g
n
ing packin
g
ng packing,
there are a
following:
A
Ite
m
A
B
C
g
g
, please not
e
please ch
e
ny damage
s
Fig. 4-1
m
Q
u
A
Even
avoi
d
e
that whet
h
ck the con
t
, or parts m
Compone
n
u
antity
1
1
1
though pac
d
tossing it a
r
8
h
er there ar
e
t
ents for co
issing, plea
s
B
n
ts included
Pow
e
User
c
kaging is m
r
ound.
e
any visibl
e
mpleteness
s
e contact y
o
C
in the scop
e
Descrip
t
Hybrid PV I
e
r cord for A
C
manual &
W
ade to be
d
e
external d
a
and for an
o
ur dealer.
C
e
of deliver
t
ion
n
verter
C
connectio
n
W
arranty Car
d
urable, ple
a
Hybri
d
a
mages.
n
y visible e
x
C
omplete d
e
n
d
a
se treat it
g
d
CPSHB300ET
R
x
ternal devi
c
e
livery shou
g
ently and
R
c
e
ld

User Manual 9 Hybrid CPSHB300ETR
5Installation
5.1 Safety Instruction
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
Do not install the inverter on easily flammable materials and
where flammable materials are stored.
Carefully remove the unit from its packaging and inspect for external damage. If you find any
imperfections, please contact your local dealer.
The PV input interface can only be connected with PV panel(s), ant the external battery connector can
only accept SLA battery types in 24VDC configuration.
Disconnect whole connections before servicing.
Do not connect this unit to an AC source or generator.
When a photovoltaic panel is exposed to light, it generates a DC voltage. When connected to this
equipment, a photovoltaic panel will charge the DC link capacitors.
Energy stored in this equipment’s DC link capacitors presents a risk of electric shock. Even after the unit
is disconnected from the grid, external battery and photovoltaic panels, high voltages may still exist
inside the inverter. Do not remove the casing until at least 2 minutes after disconnecting all power
sources.
Although designed to meet all safety requirements, some parts and surfaces of inverter are still hot
during operation. To reduce the risk of injury, do not touch the surfaces of inverter during operation.
5.2 Selecting the Installation Location
The points below help you select a suitable installation location, thus avoiding any potential damages to
both device and operators:
1) Obviously the location selected must be suitable for the inverters’ dimensions, with room to
spare.
2) Do not install the inverter on structures constructed of flammable or thermo labile materials.
3) Never install the inverter in environment of little or no air flow, nor dust environment.
4) The inverter must be installed indoors.
5) Do not expose the inverter to direct sunlight, in order to avoid the power and efficiency de-rating
caused by excessive heating.
6) The humidity of the installation location should be 0~95% without condensation.
7) The ambient temperature of the inverter should be -10℃~+50℃.
8) The installation location must be freely and safely to get at all times.
9) Vertically installation only. Never install in horizontal positions, and avoid forward and sideways
tilting; (observe drawings below)

User Manual
10) N
o
Re
11) D
o
12) D
o
5.3 Elect
r
5.3.1 Saf
e
5.3.2 Wir
o
tice the mi
quired Clea
r
o
not install
t
o
n not instal
l
rical Con
n
e
ty
ing PV In
p
Fig. 5-1
nimum cle
a
r
ances).
Fi
g
t
he inverter
l
in place w
h
n
ections
D
H
c
i
p
ut
To r
e
and
t
NEVE
Ris
k
If th
e
the i
Permitted a
a
rances of t
h
g
. 5-2 Cle
a
near TV ant
h
ere the chil
d
D
anger to lif
e
H
igh voltage
c
onductive
p
n
verter, dis
c
e
duce the ri
s
t
reat the ter
m
R connect or
k
of damag
e
e
voltage of
nverter, it
c
10
nd prohibit
e
he inverter
.
>20c
m
a
rance spac
e
t
ennas, or a
n
dren can ea
s
e
due to let
h
s which ma
y
p
arts of the i
c
onnect the
sk of electr
i
m
inals care
f
disconnect t
h
e
to the in
v
f
the PV m
o
c
an be des
t
e
d installati
o
.
(Refer to
3
m
e
for installa
t
n
y other ant
e
s
ily reach.
h
al voltages
!
y
cause elec
t
nverter. Pri
o
inverter on
i
c shock, a
v
f
ully.
h
e DC connec
t
v
erter.
o
dules exce
e
t
royed by t
o
n positions
3
.3 Dimensi
o
t
ion
e
nnas and a
!
t
ric shocks a
o
r to perfor
m
t
he AC and
D
oid touchin
g
t
ors under lo
a
ds the max
i
h
e overvolt
Hyb
r
ons and Fi
g
ntenna cabl
re present i
n
m
ing any w
o
D
C sides
g the live c
o
a
d.
imum inpu
t
t
age. This
w
r
id CPSHB300E
T
g
.5.2
es.
n
the
o
rk on the
o
mponents
t
voltage of
w
ill void all
T
R

User Manual 11 Hybrid CPSHB300ETR
Check the connection cables of the PV modules for correct polarity and make sure that the maximum open
circuit voltage shall never exceed 50V.
1The diagram drawing of DC side is shown as below, notice that the connectors are in pair (male
and female connectors).
2Check the DC connectors for correct polarity and connect them onto the inverter.
Fig. 5-3 Connect PV connectors to inverter
5.3.3 Wiring External Battery Input
1Loose the screw of battery connector by screwdriver and pull out the connector.
2Tight connector screws after you insert battery-wires to lock them into place. An AWG14 wire type is
recommended. Place the battery connector back to the inverter and tight it into place.
warranty claims. Do not connect strings to the inverter that have an
open-circuit voltage greater than the maximum input voltage of the
inverter.
Please use the same brand male and female PV connectors. Under any
conditions the total circuit current should never exceed the Max. Current.
To reduce the risk of electric shock, avoid touching the live components
and treat the terminals carefully.
NEVER connect or disconnect the connectors under load.
Risk of damage to the inverter.
If the voltage of the battery exceeds the maximum input voltage of the
inverter, it can be destroyed by the overvoltage. This will void all warranty
claims.
If the polarity of battery is reversed connect, it can damage the inverter
fuse and inverter can’t operate anymore. Before connecting, make sure the
polarity is correct.
Battery type must be valve-regulated lead-acid battery
Improper operation during the wiring process can cause fatal injury to
operator or unrecoverable damage to the inverter.

User Manual 12 Hybrid CPSHB300ETR
Fig. 5-4 Location of extended battery connector

User Manual
5.3.4 Wi
r
Conditions f
o
Measure th
50Hz/60Hz)
1. Open th
electrica
l
2. Plug-in t
h
6Co
m
6.1 Com
m
1) Re
2) Ch
3) If
t
If
t
gri
ba
4) Co
au
t
5) U
n
r
ing AC O
u
o
r the AC Co
n
e grid’s vol
t
.
e transpar
e
l socket
h
e load po
w
To loads (
a
m
miss
i
m
ission t
move the c
o
eck the PV
a
t
here’s DC s
w
t
he inverter
i
d is not con
tteries.


nnects inve
r
t
omatically.
n
der normal
u
tput
n
nection
t
age and fr
e
e
nt cover a
n
w
er cord if n
e
or
a
ppliances )
Fig. 5-5
G
i
oning
he Inver
t
o
ver from th
a
nd AC volt
a
w
itch, turn i
t
is connecte
d
nected yet,

PV >27
V

(Off)
r
ter Grid O/
P
operating c
o
e
quency. It
n
d plug in
t
e
eded.
(Differe
n
or...
rid output
a
t
er
e PV panel.
ge.
t
to ON posi
t
d
with PV p
a
L
EDs will di
s
V
and <50V
P
to electric
a
o
nditions, t
h
13
should be:
t
he AC po
w
n
t area has diff
e
a
nd standal
o
tion.
a
nel and the
s
play as bel
o
al socket, it
h
e Grid LED
t
(Voltage: 2
2
w
er cord, th
e
e
rent plug type )
E
o
ne output c
o
input volta
g
o
w. PV pow
e
will bypass
t
urns green.
2
0~240VAC
e
other en
d
E
lectrical s
o
~
~
o
nnections
g
e is higher
t
e
r would be
t
t
he Grid po
w
Hyb
r
single-phas
e
d
of power
ocke
t
t
han 27Vdc,
t
ransferred
w
er to stan
d
r
id CPSHB300E
T
e
; Frequenc
cord plug
t
while the
A
to charge t
h
d
alone outp
u
T
R
y:
t
o
A
C
h
e
u
t

User Manual
6) Pl
u
ba
re
d
6.2 Oper
Self-consu
m
In this mo
d
consumptio
attempt to
continuousl
y
Note: The i
n
Off Grid M
o
In this mo
d
power to lo
a
Fault Mod
e
The interna
any fault co
Bypass Mo
When no P
continuousl
y
Charger M
o
If user does
n
of below w
a
-Dis
c
-Pre
po
w
Sleeping
M
User can of
f
off all LED
s
operation.
W
gone, inver
t
u
g in load t
lance the p
o
d
uce the in
p
ation M
o
m
ption (O
n
d
e, the inv
e
n; Whenev
e
connect t
h
y monitors
t
n
verter star
t
o
de
d
e, whenev
e
a
ds when G
r
e
l intelligent
nditions, in
v
de
V power d
u
y
supply loa
o
de
n’t want On
a
ys can mak
e
c
onnect Gri
d
e
ss and hold
w
er off and
o
M
ode
f
inverter b
y
s
to save e
n
W
hen PV po
t
er will ente
r


o inverter
s
o
wer consu
m
p
ut power t
o
o
des
n
-Grid) Mo
d
e
rter conve
r
e
r the DC v
o
h
e grid by
5
t
he internal
t
s up autom
a
e
r the PV o
r
r
id power is
controller
c
v
erter woul
d
u
ring On Gr
ds power fr
o
-Grid, bypa
s
e
inverter st
a
d
O/P and S
t
button for
o
n) if Grid i
s
y
press and
n
ergy but k
e
wer comes
r
shutdown
m

PV >27
V

s
tandalone
o
m
ption of l
o
o
make the
n
d
e
r
s PV pow
e
o
ltage is lo
w
5
mins for
<
system. Gri
d
a
tically whe
n
r
Battery h
a
no availabl
e
c
an continu
o
d
shutdown
i
id operatio
n
o
m Grid dir
e
s
s or Of
f
-Gri
d
a
y in charge
t
andalone,
p
3s during o
p
available.
hold the bu
e
ep monito
b
ack, invert
e
m
ode.
V
and <50V
14
o
utput, inv
e
o
ad (If the r
e
n
et power t
o
e
r to chargi
w
er than 25
V
<
25Vdc and
d
bypasses
p
n
DC power
a
s sufficient
e
.
o
usly monit
immediatel
y
n
, inverter
o
e
ctly.
d
operation,
r mode.
p
ower on P
V
p
eration (in
v
u
tton for 3s
d
ring the in
t
e
r will ente
r
e
rter will fe
e
sidual pow
o
Grid as zer
o
ng battery
V
dc, the in
v
30s for <1
p
ower to loa
from the P
V
power, the
or and adju
y
o
ff internal
wants all P
V
V
power.
v
erter woul
d
d
uring inve
r
t
ernal syste
m
r
charger m
o
e
d-in the r
e
er is more
t
o
).
and/or to
v
erter will
w
6
Vdc. In w
a
d directly.
V
panel is su
f
inverter c
o
st the syste
switch but
V
power to
c
d
back to O
n
r
ter operati
o
m
for quick
o
de automa
t
Hyb
r
e
sidual po
w
t
han load, i
n
balance th
e
w
ork in wai
t
aiting state
f
ficient.
o
nvers PV a
n
e
m state. If
keep bypa
s
c
harge batt
e
n
-Grid oper
a
o
n. In this
m
k
ly going ba
t
ically. Whe
n
r
id CPSHB300E
T
w
er to Grid
t
n
verter wou
e
load pow
e
t
ing state a
n
the invert
e
n
d/or batte
r
i
nverter fin
d
s
s relay on
t
e
ry. Either o
n
a
tion after
P
m
ode, invert
e
ck to norm
n
PV power
T
R
t
o
ld
e
r
n
d
e
r
r
y
d
s
t
o
n
e
P
V
e
r
al
is