Growatt SPH-UP Series User manual

GR-UM-180-A-01
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Manual
Growatt New Energy
Shenzhen Growatt New Energy CO.,LTD
4-13/F,Building A,Sino-German(Europe) Industrial Park,
Hangcheng Ave, Bao'an District, Shenzhen, China
[phone]
www.ginverter.com
T
E [e-mail]
W
Installation Manual of SPH-UP series

Index
1 Brief Introduction
2 Safety
3 Product Description 3.1 SPH series inverter
3.2 Label Explanation
3.3 Size and weight
3.4 The advantage of the unit of SPH
1.1 Preface
1.2 Target Group
1.3 Product Description
1.4 Safety Instructions
2.1 Purpose Use
2.2 Safety Measure
2.3 Symbols introduction on the SPH
inverter
4 Unpacking
5 Installation 5.1 Basic installation requirements
5.2 Installation requires tools and RJ45
terminal sequence of the LAN line
5.3 Installation Instructions
5.4 SPH System Connection Mode
6.1 Commissioning of SPH
6.2 Operation modes
6.3 Display and button
6.4 Communication
6.5 Country setting
6 Commissioning

12 Certificate
8 Attention of the installation
environment, maintenance and
cleaning
13 Contact
9.1 Troubleshooting method when a
fault occurs
9.2 System fault information list and
troubleshooting suggestions
11.1 SPH series inverter machine
product specification
11.2 DC input terminal parameter
11.3 Torque
11.4 Appendix
9 Fault removal
11 Product specification
10 Decommissioning 10.1 Dismantling the inverter
10.2 Package and transport SPH
inverter
10.3 Storing SPH inverter
10.4 Disposing of the SPH inverter
7 Start-up and shut down SPH
system 7.1 Start-up the SPH system
7.2 Disconnect the SPH systeme

This manual will provide the users who use the SPH Series of GROWATT NEW ENERGY
TECHNOLOGY CO.LTD.SHENZHEN (Short for GROWATT New Energy as below) with the
detailed product information and the installation instructions. Please read this manual
carefully and put this manual on some place where is convenient to installation,
operation, obtain. Any modifications of GROWATT new energy, we will not notify the
user.
SPH inverter must be installed by professional electrical personnel who have obtained
the certification of the relevant departments.
We have two kinds of SPH inverter for different battery types, one is for lithium battery
and the other is for lead-acid battery. We recommend customer should decide which kind
of inverter if required prior to purchasing. GROWATT can only provide lithium battery
that is compatible with inverter, no lead-acid battery will be provided by Growatt as
customer can easily buy these from the market. It is dangerous if customer choose
inverter compatible with lithium battery (which must be provide by GROWATT) but uses it
for lead-acid battery or uses lead-acid battery for lithium battery inverter.
Installer can install SPH Series inverters rapidly, build communication system or
troubleshoot by reading this manual carefully. If you have any questions in the process of
installation, you can login in www.growatt.com and leave some message. Or you can call
our 24-hour service hotline [phone]
1.2 Target Group
1 Brief Introduction
1.1 Preface
SPH Series is used to store energy generated by the photovoltaic cell panels or energy
from grid if it is allowed in the battery, also energy can be sent to power grid through
SPH for self consumption or when Grid power is lost, SPH can be used as backup
power.
SPH series has six kinds of type:
• SPH 3000 TL BL-UP
• SPH 3600 TL BL-UP
• SPH 4000 TL BL-UP
• SPH 4600 TL BL-UP
• SPH 5000 TL BL-UP
• SPH 6000 TL BL-UP
Note: we describe this series as “SPH” as below.
Note: In different country, we provide different power. Such as in Germany, we can
provide SPH 3000~SPH 4600TL BL-UP, but we don't provide SPH 5000TL BL-UP and
SPH 6000TL BL-UP.
1.3 Product Description
Position
Description
A
USB interface
B
LED of status display
C
LCD screen
D
Function button
E
Dry contact
F
Battery terminal
G
VPP communication
H
RS485-2 communication
I
RS485-1 communication
J
NTC: Lead-acid temperature sensor terminal
K
CAN communication interface of Lithium battery
L
RJ45 interface of DRMs(used only in Australia)
M
RS485 communication interface of Merter/CT input terminal
N
AC Grid (on grid connection)
O
RSD(do not open except by Professional staff)
P
EPS output(off grid connection)
Q
Ground point
R
PV input
S
PV switch
Overview:
Chart 1.1
ABCD
E
F
G
H
I
J
L
M
N
O
P
Q
R
S

1.Please be clear which kind of battery system you want, lithium battery system or lead-
acid battery system, if you choose the wrong system, SPH can't work normally.
2.Please read this manual carefully before the installation, the product warranty may be
voided if the inverter is not installed according to the instructions of this manual for
installation and cause equipment damage.
3.All the operation and connection please professional electrical or mechanical engineer.
4.During installation, please don't touch the other parts within the box.
5.All the electrical installation must comply with the local electrical safety standards.
6.If equipments needs to maintain, please contact with local specify system installation
and maintenance personnel.
7.Connecting the equipment to the grid requires permission from the local power
company
8.When install PV modules in the daytime, please turn off the PV switch, Otherwise it will
be dangerous as high terminal voltage of modules in the sunshine.
1.4 Safety Instructions
4
3
Safety 2
2.1 Purpose Use
As shown above, a complete grid-connected system of SPH consists of PV modules, SPH
inverter, battery, utility grid and other components.
Chart 2.1
Attention:
As the system refer to battery use, we must make sure ventilation of the service
environment and temperature control in order to prevent the danger of battery
explosion, battery recommended installation environment must be strictly in accordance
with the specification, if the specification is IP20 environment, the pollution degree of
the unit is PD2, meanwhile the temperature should be control in the 0-40℃ of indoor
ventilation and the humidity should be 5%-85%. If the chosen PV modules needs to
positive or negative ground connection, please contact with Growatt for technical
support before installation.
The system chart of SPH:
Electic meter
CT
L line
L,N
L,N
10m
5m
5m
AC
Breaker
DC
Breaker
Hybrid Inverter
DC
Breaker
AC
Breaker
Sensor
Load
EPS
PV Array Battery
EPS Grid
Electrical Gri
AC
Breaker
Load
AC

2.2 Safety Measure
Risk of burns on the parts shell of SPH inverter！
During the work, Cover, shell around, radiator is likely to be hot
SPH inverter ground connection
Please ensure SPH inverter ground connection is reliable for make sure people's safety
Risk of high voltage！
SPH inverter exists radiation maybe affect health！
Don't stay a long time within 20cm range from SPH inverter
×Relevant operation for professional personnel
×Please notice children, disabled, laypeople do not close
×Supervise and make sure children don't play near the installation position of
inverter machine
6
5
2.3 Symbols introduction on the SPH inverter
Symbol
Description
Caution: Risk of electrical shock!
Caution : hot surface
Caution: risk of danger
Danger to life due to high voltage in SPH
There is residual voltage in SPH, SPH requires 5
minutes to discharge.
Please wait 5 minutes before you open the upper lid
or the DC lid.
Protective conductor terminal
Direct Current(DC)
Alternating Current(AC)
The machine complies with the requirements of the
applicable CE guidelines
Refer to the operating instructions.

3 Product Description
3.1 SPH series inverter
Marks of SPH
Mark
Description
Explanation
Push-button
Operation of display screen and set system
Status symbol of SPH
Green light on
SPH run normally
Red light on
Fault state
Green light blinking
1.Alarm state
Red light blinking
2.Software updating
78
3.2 Label Explanation
4
3Made in China
PV input data
PV voltage range
Max. input current
Nominal voltage
Power factor range
Nominal Frequency
Model name
Max.PV voltage
0.8leading~0.8lagging
Hybrid Inverter
50/60 Hz
Stand alone data
Battery data
Battery voltage range
Type of battery
Others
Safety level
Ingress Protection
Operation Ambient
Temperature
Nominal AC output
power
Nominal AC output
voltage
Nominal AC output
Frequency 50/60 Hz
Max. charging and
discharging current
Class I
-25°C - +60°C
AC output/input data
Nominal input/output
power
Max. output apparent
power
Max. input/output
current
Lithium / Lead-acid
Certificate No.
Growatt SPH 5000
550 d.c.V
120-550 d.c.V
4999/4999 W
4999 VA
230 a.c.V
22/22 a.c.A
3000 W
230 a.c.V
42-59 d.c.V
66 d.c.A
SAA181155
X
13.5 d.c.A 2
Made in China
PV input data
PV voltage range
Max. input current
Nominal voltage
Power factor range
Power factor range
Nominal Frequency
Model name
Max.PV voltage
0.8leading~0.8lagging
0.8leading~0.8lagging
Hybrid Inverter
50 Hz
EPS output data
Battery data
Battery voltage range
Rated output current
Type of battery
Others
Safety level
Ingress Protection
Operation Ambient
Temperature
Rated AC output
power
Rated AC output
voltage
Rated AC output
Frequency 50 Hz
Rated charging and
discharging current
Class I
IP65
-25°C - +60°C
AC output/input data
Rated input/output
power
Rated output apparent
power
Rated input/output
current
Lithium / Lead-acid
Certificate No
SPH 6000TL BL-UP
550 d.c.V
120-550 d.c.V
6000/6000 W
6000 VA
230 a.c.V
27/27 a.c.A
4000 VA
230 a.c.V
17.5 a.c.A
42-59 d.c.V
85 d.c.A
SAA211107
X
13.5 d.c.A 2
Overvoltage category PV:II AC:III Others:I
Inverter topology Non-isolated
PV IscPV Isc 20 d.c.A 2

Hybrid Inverter
Model name
SPH 6000TL BL-UP
PV input data
Max. PV voltage
550V d.c.V
PV voltage range
120-550 d.c.V
PV Isc
20 d.c.A*2
Max.input current
13.5 d.c.A*2
AC output/input data
Rated output/input power
6000/6000W
Rated output apparent power
6000VA
Nominal voltage
230 a.c.V
Rated input / output current
27/27 a.c.A
Nominal Frequency
50Hz
Power factor range
0.8leading～0.8lagging
EPS output data
Rated output apparent power
4000VA
Rated voltage
230 a.c.V
Rated output current
17.5 a.c.A
Nominal Frequency
50 Hz
Power factor range
0.8leading～0.8lagging
Battery data
Battery voltage range
42～59 d.c.V
Rated charging and discharging current
85 d.c.A
Type of Battery
Lithium/Lead-acid
Others
Safety level
Class I
Overvoltage category
PV:II AC:III Others: I
Ingress protection
IP65
Operation Ambient Temperature
-25℃～+60℃
Inverter topology
Non-isolated
Certificate No
SAA211107
Description of label:
10
9
3.3 Size and weight
3.4 The advantage of the unit of SPH
Features below:
·All of the designs are designed to enhance the self-use function of photovoltaic energy.
·Smart management, work mode can be set
·Safe battery used
·Easy installation
·Two MPP tracker input
·The switching time between off-grid and grid-connected is less than 10mS
·With multi-machine anti - current parallel function
Chart 3.1
A(mm)
B(mm)
C(mm)
weight(kg)
SPH TL BL-UP
456
565
188
27

4 Unpacking
Growatt SPH series and accessories as follows:
Chart 4.1
×Please check that the package is in good condition before
unpacking to ensure that there are no transportation or handling
damage that may affect the insulation integrity or safety clearance;
Failure to do so could result in a safety hazard.
×Unauthorized removal of necessary protections, improper use,
incorrect installation and operation may lead to serious safety and shock
hazards and/or equipment damage.
×In order to reduce the damage caused by the moving process, please
move the inverter correctly. The total weight of the SPH series inverter is
up to 27KG.
Warning
Please check whether external damage to the goods before unpacking.
After unpacking, please check whether the unit damage or missing parts, if it is happen,
please contact with supplier.
Item
Number
Description
A
1
SPH inverter
B
1
User Manual
C
1
Paper board(installation guide)
D
1
Waterproof cover
E
1
AC Grid connector
F
1
EPS output connector
G
4
M6 setscrew
H
2
Battery power terminal
I
6
screw
J
2
MC4 connector
12
11
Item
Number
Description
K
2
MC4 connector
M
1
Hex screwdriver
1
0
2
EPS Grid
SWITCH
EPS Load
SPH-UP has an Uninterrupted Power Supply(UPS) level switch with a
maximum 16ms transfer time. But can not use it as a Uninterrupted
Power Supply(UPS) for critical scenarios like medical power source. For
maintenance purposes, a T5B-2-8400/E is needed on EPS and on-grid
side. T5B-2-8400/E is an optional choice for installers, it will provide a
power supply for EPS load when SPH-UP is under maintenance.
0.The EPS load is vacant;
1.The EPS load is powered from the EPS side;
2.The EPS load is powered from the Grid side.
Chart 4.2
A B C D
E F G H I J K M

5 Installation
5.1 Basic installation requirements
Chart 5.2
Chart 5.1
A.The installation location must be suitable for SPH's weight for a long period time
B.The installation location must conforms with dimension of SPH
C.Do not install the unit on structures constructed of flammable or thermo labile
materials
D. The ingress Protection rate is IP65 and the pollution degree is PD2. Please refer to the
below:
E.Battery installation option is not far away from the position of SPH, the length between
SPH and battery should not be more than 1.5m.
F.The ambient temperature should be -25℃~60℃.
G.SPH can be installed in vertical or lean back on plane, please refer to the below:
13 14
H.Installation position shall not prevent access to the disconnection means.
I.In order to ensure machine can run normally and easy to operate, please pay
attention to provide adequate space for SPH, please refer to below:
Chart 5.3
J.Do not install the machine near television antenna or any other antennas and antenna
cables
K.Don't install the machine in the living area
L.Be sure that the machine is out of the children's reach
M.Taking the battery fixing space into account, about the dimensions please reference
user manual
N.The inflammable and explosive dangerous goods must not be placed around battery in
case of cause serious danger.
Chart 5.4
5.2 Installation requires tools and RJ 45 terminal sequence of the
LAN line
When installing, we need to use tools as follow, prepare the follow tools before
installing：

No.
Description
1
Press the RJ45 terminal
2
Press battery terminal connector
3
Disconnect PV terminal
4
Unscrew nut
5
Unscrew screw
6
Knock explosion bolt
7
Drill holes on the wall
LAN line RJ45 sequence as follow:
Chart 5.5
Chart 5.6
LAN line 1-8 colors as below:
PIN
1
2
3
4
5
6
7
8
Color
White
orange
Orange
White
green
Blue
White
blue
Green
White
brown
Brown
15 16
Chart 5.7 SPH 3000-6000TL BL-UP
5.3 Installation Instructions
5.3.1 Attention Layout（length of sensors consider）
There're two types of sensors for use with SPH. One is wired current sensor, one is meter
sensor, if you choose wired sensor or meter. Before installing you should know
something that as below:
The cable of wired sensor is suggested not longer than 15m,and the meter is suggested
not longer than 100m. So you need to consider the length between SPH with combiner
box for the sensor should be installed in the live line.
The layout of the inverter for residential installation as follow:
Electic meter
CT
L line
L,N
L,N
10m
5m
5m
AC
Breaker
DC
Breaker
Hybrid Inverter
DC
Breaker
AC
Breaker
Sensor
Load
EPS
PV Array Battery
EPS Grid
Electrical Gri
AC
Breaker
Load
AC

5.3.2 Installation of SPH
a)
b) c)
1.Project the machine's probably sizes on the wall, the thickness of wall for SPH must be
not less than 60mm.
2.Make sure the drill position, use paper board (installation guide), put the paper board
cling to the wall, make sure the top edge of paper board is level (As the chart 5.8a
below).
3.Mark four points at the wall via the hole of the paper board, then remove the paper
board.
4.Drill four Ф8 holes at the mark point, the depth is not less than 55mm.
5.Knock four explosion bolt into Ф8 holes (As the chart 5.8b below).
6.Hang the inverter machine on the four setscrews (As the chart 5.8c below).
7.Lock the nut of setscrew (As the chart 5.8d below).
8.The whole installation has finished.
17 18
5.4 SPH System Connection Mode
d)
Chart 5.8
The solar modules connected to the inverter must conform to the Class
A requirements of the IEC 61730 standard.
Please use the same brand male and female PV connectors.
Warning
SPH single-phase inverter has 2 independent input MPPT1& MPPT2
Notice: 1. that the connectors are in paired (male and female connectors).
2. in built DC switch isolator is optional in Australia for SPH
If the inverter is not equipped with a DC switch but this is mandatory in
the country of installation, install an external DC switch.
The following limit values at the DC input of the inverter must not be
exceeded:
CAUTION
Types
Max current MPPT1
Max current MPPT2
SPH 3000-6000TL BL-
UP
13.5A
13.5A
5.4.1 Conditions for DC Connection
5.4.2 Connecting the PV Array (DC input)
Danger to life due to lethal voltages!
The photovoltaic array provides DC voltage to the inverter under light.
Before connecting the photovoltaic array, ensure that the DC switch
and AC circuit breaker are disconnected from the inverter when
adjusting the photovoltaic array. Do not connect or disconnect the DC
connector under load.
Make sure the maximum open circuit voltage (Voc) of each PV string is
less than the maximum input voltage of the inverter.
Check the design of the PV plant. The Max. Open circuit voltage,
which can occur at solar panels temperature of -15℃, must not exceed
the Max. Input voltage of the inverter.
DANGER

1.Improper operation during the wiring process can cause fatal injury
to operator or unrecoverable damage to the inverter. Only qualified
personnel can perform the wiring work.
2. Please don't connect PV array positive or negative pole to the
ground, it could cause serious damages to the inverter.
3. Check the connection cables of the PV modules for correct polarity
and make sure that the maximum input voltage of the inverter is not
exceeded.
4. Grounding the PV modules：The SPH is a transformer less inverter.
That is why it has no galvanic separation. Do not ground the DC
circuits of the PV modules connected to the SPH. Only ground the
mounting frame of the PV modules. If you connect grounded PV
modules to the SPH, the error message "PV ISO Low".
5.Comply with the local requirements for grounding the PV modules
and the PV generator. GROWATT recommends connecting the
generator frame and other electrically conductive surfaces in a manner
which ensures continuous conduction with ground in order to have
optimal protection of the system and personnel.
6. Please disconnect the PV DC switch when maintaining the inverter.
CAUTION
Connection of PV terminal
Chart 5.9
19 20
The Inverter Side
PV-
PV+
Similar to the traditional inverter connecting, the input of PV panel energy can be
realized by using MC4 PV terminal, the detail steps are as follows:
1.Turn off PV switch.
2.Insert PV panel positive and negative cables into MC4 terminal, then connect positive
pole(+) of connection cable to positive pole(+) of PV input connector, connect negative
pole(-) of connection cable to negative pole(-)of PV input connector, please pay attention
to PV input voltage and current within permission Limit:
Max PV voltage: 550V (consider the lowest temperature)
Max PV input current: 13.5A
Max PV input power per string: 5300W
Remark:
2
1.We suggest you use the cable≥4mm /12 AWG to connect.
2.Please do not connect to DC source!
5.4.3 Connection of AC terminal and off grid terminal
SPH has a grid output terminal and off grid out terminal, look down on the SPH from the
front, the terminal on the left (on grid) is grid outlet for connecting grid, the terminal on
the right is an emergency power outlet for connecting critical load.
Chart 5.10 SPH 3000-6000TL BL-UP
Wire suggest length
Conductor
cross section
Max cable length
SPH 3000TL
BL-UP
SPH 3600TL
BL-UP
SPH 4000TL
BL-UP
SPH 4600TL
BL-UP
SPH 5000TL
BL- UP
SPH 6000TL
BL- UP
2
5.2mm
10AWG
40m
33m
28m
26m
25m
23m
2
6.6mm
9AWG
50m
42m
36m
33m
32m
29m
The AC wiring step:
Step 1. Uninstall the parts of the AC connection plug from the accessory bag.
OFF Grid ON Grid

10
Step 2: Insert the stripped and bared cable through pressure screw, seal ring, threaded
sleeve in sequence, insert cables into connection terminal according to polarities
indicates on it and tighten the screws firmly. Please try to pull out the wire to make sure
the it's well connected.
22
21
Connection
termimal
Threaded
sleeve
Seal ring
Pressure
screw
Connection
termimal
Pressure
screw
Seal ring and
Threaded sleeve
Connection
termimal
Pressure
screw
Seal ring and
Threaded sleeve
10
Step 3: Push the threaded sleeve into the socket, Tighten up the cap on the terminal.
Chart 5.13
Step 4: Finally, Push or screw the threaded sleeve to connection terminal until both are
locked tightly on the inverter.
Chart 5.14
Click!
The Inverter Side
Lock the housing
The Inverter Side
Lock the housing
Lock the housing
The Inverter Side
Chart 5.11
Chart 5.12

SPHInverter
ACGRID
L L
EPS OUTPUT
N N
E E
Sensor
L LN NE E
Battery
L
N
PE
PV
EPS
Step5: To remove the AC connector, press the bayonet out of the slot with a small
screwdriver and pull it out, or unscrew the threaded sleeve, then pull it out.
Chart 5.15
The recommended wiring diagram is as follows:
Chart 5.16
23 24
The Inverter Side
Unlock the
housing
The Inverter Side
Unlock the housing
Chart 5.17
Note: This diagram A is an example for grid system without special requirement on
electrical wiring connection.
Note: This diagram B is an example for Australian and New Zealand grid system
where neutral line can't be switched.
Note: This diagram C is an example for customer who only wants to use the on grid
storage system.
Chart 5.18
SPHI nv erter
ACGRID
LNE
Sensor
LNE
Battery
L
N
PE
PV
C
L L
SPHInverter
ON GRID EPS
N N
LL NN
PE
Battery
L
N
PE
PV
EPS
PE
E-BAR
E-BAR
E-N LINK
PE

×If you want to use on grid only, please refer to chart 5.17 connect
with AC grid and float EPS OUTPUT.
×If you have no battery now, you can also float BAT terminal, and this
hybrid inverter will only work like a PV inverter.
×If you want to use both on grid power and backup power, please
refer to chart 5.15 and 5.16 connect with AC grid and EPS OUTPUT like
the chart show.
×On grid terminal and off grid terminal can't directly connect
together.
×Off Grid terminal can't connect to grid.
×If you want to use on grid and off grid, you can use ATS (automatic
transfer switch) like chart 5.15 and 5.16 before or ask Growatt for help
to connect them.
×The first start of system needs Grid power.
NOTE: The inverter has the function of detecting residual current and
protecting the inverter against residual current. If your inverter must
equip a AC breaker which has the function of detecting residual current,
you must choose a Type A RCD breaker with the rating residual current
more than 300mA.
Warning
5.4.4 Connection of battery terminal
Install battery cable steps are as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the battery cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the network cable through an opening in the cable support sleeve.
6.Thread the network cable through the cable gland.
7.Thread cables into connection terminal, then press the terminal by relevant tools and
make sure battery cables are firmly (Growatt lithium battery contains a battery cable in
the original packing).
8.Connect positive pole (+) of battery cable to battery positive terminal (+) of the
inverter, connect negative pole (-) of battery cable to battery negative terminal (-).
9.Continue to install other cables.
Chart 5.19
25 26
Chart 5.20
Note:We suggest the distance between battery and SPH no longer than 1.5m, and the
power line area must be larger than 5 AWG.
5.4.5 Connection of CT terminal
There is a CT in SPH inverter monitoring the power consumption situation of residential
users, the CT terminal connection steps are as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the “CT” cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the “CT” cable through an opening in the cable support sleeve.
6.Thread the “CT” cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “CT1/METER1” pin connector on the
inverter until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Chart 5.21

Chart 5.22
Chart 5.23
Note:
1.The meter and CT can't be installed at same time, please set the sensor model when
selecting CT or electricity meter, please refer to section 6.3.3 for details.
2.If the cable such as “CT” cable is not used, please do not remove the filler plug from
the cable support sleeve.
Remark:
CT wire (5m in length) specification: RJ45, standard LAN line (one end with 8P modular
plug, the other connected with transformer). But if the length is not enough, customer
can add cable, so the length can be increased to 15m max, the operation is as follow
chart:
Chart 5.24
27 28
CT1/MERTER1
During the actual operation, please pay attention to the installation of current
transformer as the diagram shows below:
As illustrated above, open the current transformer and you can see an arrow labeled on it
indicating the direction of current. Put the live wire among the under-detection wires
onto the current transformer. After latching the current transformer, the installation has
been finished.
Chart 5.25
Notice:
The direction (from K to L) of the arrow on the current transformer is corresponding to
the direction of the current in live wire from Grid to Load. Sensor needs to be placed in
the power distribution cabinet.
5.4.6 Connection of meter terminal
When customer needs to use meter to monitor the energy flow, the meter terminal
connection steps are as follows:
1.Reference 5.2, make LAN cables with RJ45 terminal.
2.Thread the swivel nut over the LAN cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the LAN cable through an opening in the cable support sleeve.
6.Thread the LAN cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “CT1/METER1” pin connector on the
inverter until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Chart 5.26
CT1/ME R T ER1

The position of export limitation CT or Meter must between the
Inverter & Load and grid.
Information
This series inverter has integrated export limitation functionality. To use this function,
you can connect smart meter or CT.
29 30
5.4.7 Connection of communication terminal for lithium battery (CAN)
When using CAN communication with lithium batteries (for example ARK LV Battery),
connect lithium battery terminal (RJ45) steps as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the “CAN” cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the “CAN” cable through an opening in the cable support sleeve.
6.Thread the “CAN” cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “CAN” pin connector on the inverter
until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Chart 5.27
Chart 5.28
CAN
Note:
1.If you are using a lead-acid battery, you do not need to install this communication
cable.
2.The CAN battery communication and 485-2 battery communication can't be installed
at same time, please select the correct communication method according to the battery
manual.
3.If the cable such as “485-2” cable or “CAN” cable is not used, please do not remove
the filler plug from the cable support sleeve.
Note:
1.Meter and CT can't be installed at same time, please set the sensor model when
selecting CT or electricity meter, please refer to section 6.3.3 for details.
2.Meter must be provided by Growatt. If not, maybe meter can't communicate with SPH
inverter.
3.The more detail describe of meter installation, please turn to meter user manual.

5.4.8 Connection of communication terminal for lithium battery (RS485)
When using lithium batteries which need to connect BMS system of the battery, connect
lithium battery terminal (RJ45) steps as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the “RS485” cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the “RS485” cable through an opening in the cable support sleeve.
6.Thread the “RS485” cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “RS485-2” pin connector on the
inverter until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Chart 5.30
Note:
1.If you are using a lead-acid battery, you do not need to install this communication
cable.
2.The CAN battery communication and 485-2 battery communication can't be installed
at same time, please select the correct communication method according to the battery
manual.
3.If the cable such as “485-2” cable or “CAN” cable is not used, please do not remove
the filler plug from the cable support sleeve.
5.4.9 Connection of DRMS terminal (Australia only)
When SPH is applied in Australia, the DRMS terminal needs to be connected. The
connection method is as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the “DRMS” cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the “DRMS” cable through an opening in the cable support sleeve.
6.Thread the “DRMS” cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “DRM” pin connector on the inverter
until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Chart 5.29 Chart 5.31
Chart 5.32
31 32
485-2
DRM
DR M
485-2

PIN
Inverter distribution capable of charging and discharging at the same time.
1
DRM5
2
DRM6
3
DRM7
4
DRM8
5
RefGen
6
COM/DRM0
7
/
8
/
Method of asserting demand response modes
MODE
RJ45 socket asserted by
shorting pins
Requirement
DRM0
5
6
operate the disconnection device
DRM5
1
5
Do not generate power
DRM6
2
5
Do not generate at more than 50% of rated power
DRM7
3
5
Do not generate at more than 75% of rated power
and sink reactive power if capable
DRM8
4
5
Increase power generation (subject to constraints
from other active DRMs)
5.4.10 Connection of temperature probe for lead-acid battery
When customer using lead-acid battery, the temperature probe of the lead-acid battery
is used to detect the ambient temperature of the lead-acid battery, the battery
temperature cable of the SPH side connection steps are as follows:
1.Unscrew the swivel nut from the cable gland.
2.Thread the swivel nut over the “NTC” cable.
3.Press the cable support sleeve out of the cable gland.
4.Remove the filler plug from the cable support sleeve.
5.Route the “NTC” cable through a min opening in the cable support sleeve.
6.Thread the “NTC” cable through the cable gland.
7.Insert the RJ45 plug of the network cable into the “NTC” pin connector on the inverter
until it snaps into place.
8.If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
9.Screw the swivel nut onto the waterproof cover.
Note:
1.If you are using a lithium battery, you do not need to install this temperature probe, the
probe of the temperature cable should be attached to the surrounding environment of
the lead-acid battery, and the length of this cable is 1.5m, so pay attention to the
distance of battery and SPH.
2.If the cable such as “NTC” (lead-acid battery temperature sensor) cable is not used,
please do not remove the filler plug from the cable support sleeve.
Chart 5.34
Chart 5.33
33 34
NT C Battery
NTC
Note:
If the cable such as “NTC” (lead-acid battery temperature sensor) cable is not used,
please do not remove the filler plug from the cable support sleeve.