CFE 3kW Residential ESS Lithium ion Battery

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Product Information

Specifications:

• Manufacturer: CF Energy Co. Ltd.
• Model: Creek 4
• Function: Hybrid Inverter
• Dimensions: Available in user manual
• Website: www.cfess.cn
• Email: eva.lin@cfess.cn

Product Usage Instructions:

1. Important Safety Instructions:

Danger to life due to high voltage in the inverter! All work
must be carried out by qualified electrician. Make sure to
disconnect both AC and DC power from the inverter before any
maintenance or cleaning.

2. Basic Function:

The Creek 4 Hybrid Inverter can convert solar energy to AC
energy, store energy into a battery, optimize self-consumption, and
feed energy back to the public grid. The work mode depends on PV
energy and user preference.

3. Work Modes:

• Self-Use (with PV connected): PV energy used
  for local loads, then battery charging, excess power to grid.

• Self-Use (without PV): Battery discharges for
  loads, grid supplies when battery is low.

• Peak Shift: Battery prioritized, charging from
  off-peak electricity, flexible charging/discharging times.

• BAT Priority: Ensures battery has energy
  during power outages, forced charging, no discharge when grid is
  on.

4. Interface Definition and Technical Data:

• Interfaces: PV1+, PV1-, PV2+, PV2, WiFi port,
  USB port, DRM, BMS, CT, CAN, DRY IO, NTC, EPS

Frequently Asked Questions (FAQ):

Q: Can children use the inverter?

A: The inverter should not be used by children. All work must be
carried out by qualified personnel.

Q: What should I do in case of a power outage?

A: The BAT Priority mode ensures the battery has enough energy
to supply during power outages. Make sure the inverter is set to
charge from the grid if needed.

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Creek 4 User Manual

CF Energy Co. Ltd.
Company Address: Intelligent Manufacturing Base, Xianyang, Shaanxi, PRC. Tel: (+86) 134 8085 4482 Web: www.cfess.cn E-mail: eva.lin@cfess.cn

V2 20.11.2023

Contents
1. Introduction…………………………………………………………………………………………………………………………… 1 1.1 Important Safety Instructions ……………………………………………………………………………………. 1 1.2 Basic Function ………………………………………………………………………………………………………………3 1.3 Work Modes …………………………………………………………………………………………………………………4 1.4 Dimension…………………………………………………………………………………………………………………….5
2. Interface Definition and Technical Data……………………………………………………………………………….6 2.1 Interface Definition …………………………………………………………………………………………………….. 6 2.2 General Data ……………………………………………………………………………………………………………….. 7 2.3 Technical Data …………………………………………………………………………………………………………….. 8 2.4 Safety Protection Features ………………………………………………………………………………………. 12
3. Installation…………………………………………………………………………………………………………………………….13 3.1 Check for Physical Damage …………………………………………………………………………………….. 13 3.2 Tools Required for Installation …………………………………………………………………………………13 3.3 Installation Step………………………………………………………………………………………………………… 13
4. Electrical Connections and Commissioning……………………………………………………………………… 15 4.1 Battery Connection ……………………………………………………………………………………………………15 4.2 Grid and Load Connection ……………………………………………………………………………………….16 4.3 PV Connection ………………………………………………………………………………………………………….. 17 4.4 Communication Interface Definition ……………………………………………………………………… 18 4.5 Wi-Fi and GPRS Connection ( Optional ) ……………………………………………………………….19 4.6 Installation and Commissioning Steps ……………………………………………………………………21
5. Setting………………………………………………………………………………………………………………………………….. 22 5.1 Control Panel ……………………………………………………………………………………………………………..22 5.2 Instructions for LED Indicator …………………………………………………………………………………..23 5.3 Instructions for the Use of Three Main Options …………………………………………………… 24 5.4 LCD Interface ……………………………………………………………………………………………………………..26 5.5 Settings ……………………………………………………………………………………………………………………….31 5.6 INQUIRE …………………………………………………………………………………………………………………… 46 5.7 STATISTIC ………………………………………………………………………………………………………………… 47 5.8 Autotest Fast …………………………………………………………………………………………………………….48
6. Fault diagnosis and solutions…………………………………………………………………………………………….. 50

1. Introduction
1.1 Important Safety Instructions
Danger to life due to high voltage in the inverter! All work must be carried out by qualified electrician. The appliance is not to be used by children or persons with reduced physical
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction. Children should be supervised to ensure that they do not play with the appliance. Caution! Danger of burn injuries due to hot enclosure parts! During operation, the upper lid of the enclosure and the enclosure body may become hot. Only touch the lower enclosure lid during operation. Caution! Possible damage to health as a result of the effects of radiation! Do not stay closer than 20 cm to inverter for any length of time. Note! Ground the PV generator. Comply with the local requirements for grounding the PV modules and the PV generator. It 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 system and persons. Warning! Ensure input DC voltage sMax. DC voltage. Over voltage may cause permanent damage to inverter or other losses, which will not be included in warranty! Warning!
1

Authorized service personnel must disconnect both AC and DC power from inverter before attempting any maintenance or cleaning or working on any circuits connected to inverter.
Risk of electric shock! Accessories only together with the inverter shipment are recommended here.
Otherwise, may result in a risk of fire, electric shock, or injury to person. Make sure that existing is in good condition and the wire is not undersized. Do not disassemble any parts of inverter which are not mentioned in installation
guide. It contains no user-serviceable parts. See Warranty for instructions on obtaining services. Attempting to service the inverter yourself may result in a risk of electric shock or fire and will void your warranty. Keep away from flammable, explosive materials to avoid fire disaster. The installation place should be away from humid or corrosive substance. Authorized service personnel must use insulated tools when installing or working with this equipment. PV modules shall have an IEC 61730 class A rating. Never touch either the positive or negative pole of PV connecting device. Strictly prohibit touching both of them at the same time. The unit contains capacitors that remain charged to a potentially lethal voltage after the MAINS, battery and PV supply has been disconnected. Hazardous voltage will present for up to 5 minutes after disconnection from power supply. CAUTION-RISK of electric shock from energy stored in capacitor, Never operate on the inverter couplers, the MAINS cables, Battery cables, PV cables or the PV generator when power is applied. After switching off the PV, battery and Mains, always wait for 5 minutes to let the intermediate circuit capacitors discharge before unplugging DC, battery inplug and MAINS couplers. When accessing the internal circuit of inverter, it is very important to wait 5 minutes before operating the power circuit or demounting the electrolyte capacitors inside device. Do not open the device beforehand since the capacitors require time sufficiently discharge!
2

1.2 Basic Function Hybrid Inverter Series are high quality inverters which can convert solar energy to AC energy and store energy into battery. The inverter can be used to optimize self-consumption, store in the battery for future use or feed in to public grid. Work mode depends on PV energy and user’s preference. It can provide power for emergency use during the grid lost by using the energy from battery and inverter (generated from PV). System Diagram
3

1.3 Work Modes Hybrid Inverter provides multiple work modes based on different requirements.
Work modes: Self-Use (with PV connected)
Priority: load >battery>grid This mode applies the area that has low feed-in tariff and high energy price. The power generated from PV will be used to supply the local loads firstly, then to charge the battery. The excess power will be transmitted to the public grid.
Work modes: Self-Use (without PV) When no PV supplied, battery will discharge for local loads firstly, and gird will supply power when the battery capacity is not enough.
Work modes: Peak Shift
Priority: battery>load >grid (when charging) Priority: load >battery>grid (when discharging) This mode applies the area that has electricity price between peak and valley. User can use off-peak electricity to charge the battery. The charging and discharging time can be set flexibly, and it also allows to choose whether charge from the grid or not.
Work modes: BAT Priority
Priority: battery>load >grid This mode applies the area that has frequent power outages. Besides this mode ensures the battery will have enough energy to supply when the grid is off. In this mode battery will be charging forcibly in the setting time and will never be discharged when the grid is on, and it also allows to choose whether charge from the grid or not.
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1.4 Dimension
5

2. Interface Definition and Technical Data
2.1 Interface Definition

Object A/B
C D E/F G/H I/J K L M N O P

Description PV1+ / PV1- / PV2+ / PV2WiFi port for external WiFi USB port for firmware upgrade
DRM / BMS CT / CAN DRY IO / NTC EPS Emergency Power Supply
Grid Battery+ / Battery-
PV switch Battery switch Earthing Point
6

2.2 General Data

Model
Dimension W/H/D Dimension of packing W/H/D
Inverter part weight [kg] Net weight [kg] (Without Package) Gross weight [kg] (With Package)
Installation Operating temperature range [] Storage temperature [ ] Storage / Operation relative
humidity Altitude [m] Ingress Protection Protective Class Night-time consumption Over Voltage Category Pollution Degree
Cooling Noise level Inverter Topology Communication Interface

CFE Creek 4 3kW
CFE Creek 4 4.6kW

CFE Creek 4 3.6kW
CFE Creek 4 5kW
5803501800

CFE Creek 4 4kW
CFE Creek 4 6kW

1845645385 / 1859659413

41.5

82

86

Stack

-25 ~ +60 (derating at 45) -25 ~ +60

4%~100% (Condensing)

<2000 IP20 (for indoor use)
I <3W

(MAINS), ll (PV, Battery) II
Passive 40dB non-isolated CAN / RS485 / WIFI / LAN / DRM

7

2.3 Technical Data

Model

CFE Creek 4
3kW

CFE Creek 4 3.6kW

CFE Creek 4
4kW

CFE Creek 4 4.6kW

CFE Creek 4
5kW

CFE Creek 4
6kW

DC input

Max. recommended DC power [W]

4600

4600

6000

6000

7000

7000

Max. PV DC voltage [V]

550

550

550

550

550

550

Nominal DC operating voltage [V]

360

360

360

360

360

360

MPPT voltage range [V]

125-500 125-500 125-500 125-500

125-500

125-500

MPPT voltage range @full load [V]

150-500 150-500 170-500 170-500

220-500

220-500

Max. input current [A]

14/14

14/14

14/14

14/14

14/14

14/14

Max. short circuit current [A] 17.5 /17.5 17.5/17.5 17.5/17.5 17.5/17.5

17.5/17.5

17.5/17.5

Start DC input voltage [V]

125

125

125

125

125

125

No. of MPP trackers

2

2

2

2

2

2

Strings per MPP tracker

1

1

1

1

1

1

Max. Inverter backfeed current to array

0

0

0

0

0

0

DC disconnection switch

/

8

Nominal AC Power [VA]

AC output

3000

3680

4000

4600

5000

6000

Max. apparent AC Power [VA]

3000

3680

4000

4600

5000

6000

Rated output voltage (range) [V]

230 ( 176 to 270 )

Rated output Frequency [Hz]

50 / 60

Nominal AC current [A]

13

16

17.4

20

21.7

26

Max. AC current [A]

13

16

17.4

20

21.7

26

Displacement power factor

0.8 leading-0.8 lagging

Total Harmonic Distortion (THDi)

< 2%

Load control

optional

9

Nominal AC Power [VA] Rated grid voltage (range) [V] Rated grid Frequency [Hz] Nominal AC current [A] Max. AC current [A] Displacement power factor AC inrush current [A] EPS rated power [VA] Max. EPS power [VA] EPS rated voltage, Frequency EPS rated current [A] Max. EPS current [A] Switch time [s] Total harmonic distortion
Parallel operation Compatible with the generator

AC input

3000

3680

4000

4600

5000

230 ( 176 to 270 )

50 / 60

13

16

17.4

20

21.7

13

16

17.4

20

21.7

0.8 leading-0.8 lagging

35

35

35

35

35

EPS output

3000

3680

4000

4600

5000

3000

3680

4000

4600

5000

230VAC, 50 / 60Hz

13

16

17.4

20

21.7

13

16

17.4

20

21.7

<20ms

<2%

Yes

Yes (start / stop signal only)

6000
26 26 35 6000 6000 26 26

10

Battery parameter

Battery type

Lithium battery / Lead-ACID

Battery voltage range [V]

40-58

Recommended battery voltage [V]

51.2

Cut Off Voltage [V]

40

Max. Charging Voltage [V]

58

Max. Protective Voltage [V]

58

Max. charge/discharge current [A] 95 / 62. 5 95 / 76. 6 95 / 83. 3 95 / 95.8 95 / 104.2 95 / 110

Peak charge/discharge current [A] 95 / 62.5 95 / 76.6 95 / 83.3 95 / 95.8 95 / 104.2 95 / 110

Communication interfaces

CAN / RS485 / WI-FI / LAN / DRM

Total Energy [kWh]

20.48

Reverse connect Protection (AC side)

Yes

Efficiency

MPPT efficiency

99.9%

Europe efficiency

97%

DC Max. efficiency

97.6%

Max. Battery charge efficiency

95%

Max. Battery discharge efficiency

95%

11

2.4 Safety Protection Features

Safety & Protection

Over / under voltage protection

YES

DC isolation protection

YES

Monitoring ground fault protection

YES

Grid protection

YES

DC injection monitoring

YES

Back feed current monitoring

YES

Residual current detection

YES

Anti-islanding protection

YES

Over load protection

YES

Over heat protection

YES

Max. output fault current [A]

55

Max. output over current [A]

28.7

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3. Installation
3.1 Check for Physical Damage Make sure the inverter is intact during transportation. If there is any visible damage, such as cracks. Please contact your dealer immediately. 3.2 Tools Required for Installation Installation tools: crimping pliers for binding post and RJ45, screwdriver, manual wrench etc.
3.3 Installation Step Step 1: Creek machine fixing, the top is fixed to the wall, and the bottom is fixed to the ground, using M8 Expansion screws.
13

Step 2: The battery fixing, as shown in the figure, push from the right, and a total of 8 M5*12screws are used. Please pay attention to the direction when assembling the battery.
Step 3: A diagram of the cable harness connection
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4. Electrical Connections and Commissioning
4.1 Battery Connection Battery connection diagram

Note!
Connecting inverter port of the Battery 1 ( master ) to BMS port of PCS, M / S port used for connecting the Battery 1 ( master ) and Battery 2 ( slave ) together. Please check the battery manual for details.
BMS PIN Definition
Communication interface between inverter and battery is RS485 or CAN with a RJ45 connector. The wiring sequence of the crystal head conforms to the 568B standard: orange white, orange, green white, blue, blue white, green, brown white and brown.

PIN

123

4

5

6

7

8

CAN Definition X X X BMS_CANH BMS_CANL X

X

X

Rs485 Definition X X X

X

X

GND BMS_485A BMS_485B

15

4.2 Grid and Load Connection Electrical connection diagram

Hybrid inverter are designed for single phase grid. The Voltage is 220 / 230 / 240V, and

the frequency is 50 / 60 Hz.

Other technical requests should comply with the requirement of the local public grid.

Table 1 Cable and Micro-breaker recommended

Model Cable Micro-breaker

All 5-6mm²
32A

Micro-breaker should be installed between inverter and grid, any load should not be

connected with inverter directly.

Step1. Check the grid voltage.

1.1 Check the grid voltage and compare with the permissive voltage range (Please refer to technical data). 1.2 Disconnect the circuit board from all the phases and secure against re-connection.

Step2. Select suitable cables and cold-pressed terminals, remove the insulation layer of 18 mm at the end of the wire, and then press the cables and terminals with wire crimping pliers.

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Step3. Connect the completed cable to the power grid and EPS interface, and tighten the screws.

4.3 PV Connection

Cables compartment

Hybrid Inverter can be connected in series with 2-strings PV modules for 3kWp, 3.6kWp, 4kWp, 4.6kWp, 5kWp and 6kWp.
Select PV modules with excellent function and reliable quality. Open-circuit voltage of module arrays connected in series should be<Max. DC input voltage; operating voltage should be conformed to MPPT voltage range.
Max. DC Voltage Limitation

Model
Max. DC Voltage ( V ) MPPT Voltage Range ( V )
Warning!

CFE Creek 4 3kW CFE Creek 4 4.6kW

CFE Creek 4 3.6kW
CFE Creek 4 5kW 550
125-500

CFE Creek 4 4kW CFE Creek 4 6kW

PV module voltage is very high, which already achieve dangerous voltage range, please comply with electric safety rules when connecting.

17

Please do not make PV positive or negative together or to the ground! PV cable Connection Steps: 1) Checking PV module, ensure the PV + and PV- ports of the PV string are correct. 2) Separate PV connector to ensure PV is in open circuit state. 3) Select suitable cables and cold-pressed terminals, remove the insulation layer of 18
mm at the end of the wire, and then press the cables and terminals with wire crimping pliers. 4) Connect the completed cable to the PV interface, and tighten the screws. 4.4 Communication Interface Definition

BMS PIN Definition
Communication interface between inverter and battery is RS485 or CAN with a RJ45 connector. The wiring sequence of the crystal head conforms to the 568B Standard: orange white, orange, green white, blue, blue white, green, brown white and brown.

18

PIN

123

4

5

6

7

8

CAN Definition X X X BMS_CANH BMS_CANL X

X

X

Rs485 Definition X X X

X

X

GND BMS_485A BMS_485B

18

DRY_IO ( RJ45 PIN ) Definition

Communication interface between inverter and meter is Rs485 with a RJ45 connector.

18

1

2

3

4

5

6

7

8

DRYO_1A DROY_1B DRYO_1C DRYI_1

DRYI_1B DRYO_2A DRYO_2B DRYO_2C

DRM Connection

DRM is provided to support several demand response modes by emitting control signals as followed.

Note: Only PIN6 ( DRM0 ) is available now, and other PIN functions are being developed.

18

1

2

3

4

5

6

7

8

DRM1/5 DRM2/6 DRM3/7 DRM4/8

+5V

DRM0

GND

GND

4.5 Wi-Fi and GPRS Connection ( Optional )
Inverter provides a Wi-Fi port which can collect data from inverter and transmit it to monitoring-website by Wi-Fi. Diagram

Step1. Plug WIFI into COM” port at the bottom of the inverter. Step2. Establish the connection between the inverter and router.
19

Step3. Create a user account online. (Please check the WiFi user manual for more details).
GPRS Connection:
GPRS connection interface is consistent with WIFI interface, please refer to the GPRS user manual for detailed connection steps.

WIFI/GPRS PIN Definition

1

2

3

4

1

2

3

4

+5V RS485_A RS485_B GND

20

4.6 Installation and Commissioning Steps (1) Install the Creek, and set it by the wall / floor. (as in chapter 3). (2) Install the batteries in the Creek ‘ s lower enclosure, and fixate them in place using
screws. (3) Connect the communication cable and the power cables for the Grid / PV. (as in
chapter 4). (4) Connect the batteries cables; PE, communication, and power cabling. (as in chapter 4
and the batteries manual). (5) Set the batteries’ DIP switches according to the battery manual. (6) Operate the Creek by providing power from the grid not from the batteries. (7) Operate the batteries as in the battery catalog. Start from the last slave battery to the
master. (8) On the PowerCreek, operate the battery DC switch.
21

5. Setting
5.1 Control Panel

Object

Name

A

LCD Screen

B

C Indicator LEDs
D

E

F

G Function

H

Button

I

Description
Display the information of the inverter.
in green: The inverter is in grid mode. Off: The inverter is in not in grid mode. in green: The inverter is in off-grid mode. Off: The inverter is in not in off-grid mode.
D in Yellow: The inverter is in Warning. Off: The inverter has no Inverter Warning
in red: The inverter is in fault status. Off: The inverter has no errors.
Return: Return from current interface or function.
Up: Move cursor to upside or increase value.
Down: Move cursor to downside or decrease value.
Enter: Confirm the selection.

22

5.2 Instructions for LED Indicator

Initialization Stand-by Grid mode Off-Grid
Bypass of mains Fault

Grid (Green)
off off on on off off

EPS (Green)
off off off on on off

Alarm (Yellow)
off off off off on off

Fault (Red)
off off off off off on

23

5.3 Instructions for the Use of Three Main Options For example, before selecting the mode, you can set the device up according to the local power grid, PV input mode and battery type.
24

25

5.4 LCD Interface

5.4.1 Error information

Interface
ERROR NO. 02: Bat Disconnect 27: BMS Comm.fail

Description
Numbers represent error codes and text is error information. Refer to Chapter 6 for specific contents.

NOTE: When there is a lock mark

when inverter screen is

on circular status info display, you can press enter to pause

or unpause the screen scrolling.

You can identify screen-locking feature by the lock in the top-right corner. Note that locking the screen still allows you to go through the status info screen but not change any parameters.

Note: The errors screen will stop you from scrolling when you are in the lock- screen mode.

5.4.2 System setting1

Interface
SYSTEM1 STATE: SELF CSM GRID: US-CA PV I/P: PARALL

Description
State: Setting of the whole machine working mode. Including: SELF CONSUME, PEAK SHIFT and BAT PRIORITY. Refer to Chapter 1.3 for specific contents.
Grid standard: Displays the grid standard actually set.
PV input mode:The display value is the setting value of PV
input type Including: INDEPENDANT, PARALLEL, CV. Settings and explanations are provided in section 5.5.4.4

5.4.3 System setting2

Interface

Description

SYSTEM2 BMS ComCAN Anti Reflux: DISA DOD 80%

BMS Com: Battery Management System communication mode. Including: CAN, RS485.
Anti Reflux: Displays Whether Inverter isn’t allowed to generate electricity to the Grid. Including: DISABLE, ENABLE.
DOD: Depth of battery discharge. When the battery discharge exceeds the DOD parameter, the inverter generates
a low voltage or under voltage alarm,and the battery.

26

5.4.4 System setting3

Interface SYSTEM3 EPS ENABLE: ENABLE

Description
EPS ENABLE: When the Grid and PV are powered off, Enable the battery to supply power to the load, default option is enabled.

5.4.5 PV1 Input display interface

Interface
PV2 INPUT VOLT: 300 V CURR: 110.00 A Power: 3000 W

Description PV2 input real-time voltage, current and power.

5.4.6 PV2 Input display interface

Interface PV2 INPUT VOLT: 300 V CURR: 10.00 A POWER: 13000 W
5.4.7 DC Voltage interface

Description PV2 input real-time voltage, current and power.

Interface DC VOLTAGE BUS 384 V
5.4.8 Battery interface
Interface
BATTERY VOLT: 50 V CURR: 10.00 A STA: C D F

Description BUS: Real-time voltage of bus capacitor of the machine.
Description Battery real-time voltage. Battery real-time current. STA: Battery status. C: Indicates that the battery is rechargeable (From the BMS) D: Indicates that the battery can discharge (From the BMS) F: The battery requests a forcible charge (From the BMS)

27

5.4.9 Battery information

Interface
BATTERY INFO TYPE: Lithium TEMP: 26 SOC: 30%

Description TYPE: Battery type:(lead acid, lithium battery) TEMP: Battery temperature. SOC: Percentage of battery surplus capacity from the BMS

5.4.10 Battery Parameter interface

Interface
BMS PRMETER CHAR VOL: 0.0V CHARGE: 50A DISCHA: 150A

Description
CHAR VOL: Battery charging voltage.
CHARGE: Battery charging current. If the inverter is in parallel state and uses Common battery setting, the charging current on the master is equal to the value uploaded by the BMS divided by the number of parallel machines. The charging current on the slave is equal to the value uploaded by the BMS and is compared with the value set on the master, the minimum value is taken and divided by the number of parallel machines.
DISCHA: Battery discharging current. (The parallel state is the same as the charging value algorithm)

5.4.11 Grid output

Interface GRID OUTPUT VOLT: 0.0V CURR: 0.00A FREQ: 0.00Hz
5.4.12 INV output

Description VOLT: Gird real-time voltage. CURR: CT real-time current. FREQ: Grid real-time frequency.

Interface
INV OUTPUT VOLT: 0.0V CURR: 0.00A FREQ: 0.00Hz

Description VOLT: INV real-time voltage. CURR: INV real-time current. FREQ: INV real-time frequency.

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5.4.13 EPS LOAD

Interface EPS LOAD VOLT: 0.0V CURR: 0.0A PERCENT:0.0%
5.4.14 POWER

Description VOLT: LOAD real-time voltage. CURR: LOAD real-time current. PERCENT: LOAD real-time percentage.

Interface

POWER

INV:

0.0W

GRID:

0.0W

HOMELOAD: 0.0W

Description INV: INV power. GRID: Grid power. HOMELOAD: Power of grid-side load

5.4.15 POWER

Interface

POWER

PV I/P:

0.0W

EPSLOAD: 0.0W

BAT:

0.0W

PV I/P: PV power. LOAD: LOAD power. BAT: BAT power.

Description

5.4.16 Temperature
Interface TEMPERATURE INVER: 0.0 DCDC: 0.0 INSIDE: 0.0

Description INVER: INV Temperature. DCDC: DCDC Temperature. INSIDE: Internal ambient temperature of the machine.

29

5.4.17 State

Interface
STATE SYS: STANDBY INV: STANDBY DCDC: STANDBY

Description

System information: Display complete machine status

information, including: INIT, STANDBY, PV GRID, BAT GRID, BYP, AC BAT CHG, HYBRID POW etc.

INIT: Initialization

PV GRID: PV generates electricity for the grid.

BAT GRID: Battery discharges to the power grid.

BYP: Bypass band load. AC BAT CHG: The grid charges the battery HYBRID POW: Hybrid power supply (Multiple Power Supply).

INV: Displays the inverter status information, including: STANDBY, OFF GRID, GRID, OFF GRID PL, INV TO PFC.

GRID: Grid connected state.

OFF GRID PL: Working state off-grid conversion to grid connection.

INV TO PFC: Status of power by public grid turn into on grid working mode.

DCDC: Displays charging and discharging status information, including: STANDBY, CHARGE, DISCHARGE.

30

5.5 Settings This map shows the device menu and sub-menu. This may be different from one device to another.
31

The arrow ” 5.5.1 USER

” means that this is the default setting.

Interface
USER 1: SETUP 2: INQUIRE 3: STATISTIC

Description SETUP: Press Enter to user settings interface. INQUIRE: Query machine model, serial number, software version. STATISTIC: View machine run statistics.

5.5.2 SET Password

Interface PASSWORD INPUT: XXXXX
5.5.3 Setup

Description
Enter the password required for setting. The default password is
“00000” . Press the Up or Down keys to adjust the number, press the Enter key to move the cursor forward, and press the Return key move the cursor backward.

Interface
SETUP 1: SYS SETTING 2: BAT SETTING 3: GRID STD 4: RUN SETTING 5: 485ADDRESS 6: BAUD RATE 7: LANGUAGE 8: BACKLIGHT 9: DATE/TIME 10: CLEAR REC 11: PASSWORD 12: MAINTENANCE 13: FCTRY RESET 14: AUTO TEST 15: PARALLEL 16: ADVANS

Description This interface is used for various information inquiry options. Press the Up/Down button to make the corresponding selection. Press Enter button to enter the selected menu. Press Return button return to the user interface.

32

5.5.4 System setting 5.5.4.1 System setting
Interface SYS SETTING
1: WORK MODE 2: EPS ENABLE 3: BAT WAKE -UP 4: REMOTE CTRL 5: START DELAY 6: PV INPUT 7: Anti Reverse 8: HOME LOAD 9: BMS Aux MANAGE 10: Zero Export Power 11: BAT LOW CAP STANDBY

Description
Enter the password required for setting. The default password is “00000”.
Press the Up or Down keys to adjust the number, press the Enter key to move the cursor forward, and press the Return key move the cursor backward.

5.5.4.1.1 Work mode
Interface
WORK MODE 1: SELFCONSUME 2: PEAK SHIFT 3: BAT PRIORITY

Description This interface is used to select the working mode. Press Return button return to setting interface.

33

5.5.4.1.2 Peak shift work time

Interface

Description

WORK MODE 1: SELFCONSUME 2: PEAK SHIFT 3: BAT PRIORITY

This interface is used to select the working mode.
Press Return button return to setting interface.
Select the peak clipping and valley filling mode, you also need to set the charge and discharge time
It’s allowed to set Three charging and discharging periods.

WORK TIME 1: TIME 1

When setting the time, ensure that the time of the inverter is the local time.

2: TIME 2

Press Enter to enter the next menu.

3: TIME 3

This parameter is set for one day. If the specified time conflicts, the first time is used as the main time perform. If the three time ranges do not conflict, the three time ranges are executed in sequence.

CHAG START1 00: 00 CHARGE END1 0 0 : 0 2 DISC START1 00: 03 DISCHA END1 23 : 5 9

This interface is used to adjust the time of peak load shifting. Press Up/Down button to move the corresponding options. Press Enter to enter the selected menu. Press Return button to return to the working mode interface.

5.5.4.2 EPS enable

Interface
EPS ENABLE 1: DISABLE 2: ENABLE

Description
When the Grid and PV are powered off, Enable the battery to supply power to the load, default option is enabled.

5.5.4.3 Battery wake-up
Interface WAKE-UP EN 1: DISABLE 2: ENABLE

Description
When the battery is low and the battery relay has been disconnected, the inverter will send instructions to the battery forcibly close relay by BMS, and the inverter will charge.
The default option is disabled. (Partial battery support) If you want to use this feature, please consult the battery brand supported by the dealer. Use it only when the battery is too low.
After the battery wakes up successfully, please turn off the function, otherwise it will affect the normal operation of the machine.

34

5.5.4.4 PV INPUT MODE

Interface INPUT MODE 1.INDEPENDENT 2.PARALLEL 3 . CV
5.5.4.5 Anti Reflux

Description
Setup of PV Input mode. INDEPENDENT: The default Settings PARALLEL: This feature is for test use only, not customer use. CV: This feature is for test use only, not for customer use. The factory setting by default is Independent, when parallel input is set to be stand-alone mode, PV power will be imbalanced.

Interface
Anti Reverse 1.DISABLE 2.ENABLE

Description
Anti Reflux : Whether Inverter isn’t allowed to generate electricity to the Grid.
The default option is disabled. It’s means inverter allowed to generate electricity to the Grid.

5.5.4.6 HOME LOAD

Interface
HOME LOAD 1.DISABLE 2.ENABLE

Description
ENABLE: Statistics on the power consumption of grid – side loads.
CFE BMS do not need Aux. management

5.5.4.7 BMS Aux MANAGE

Interface
BMS Aux MANAGE 1.DISABLE 2.ENABLE

Description
ENABLE: When the BMS of the battery does not have a disable charge or discharge function, the inverter will automatically reduce the power to avoid overcharging or over discharging the battery.
CFE BMS do not need Aux. Management.

5.5.4.8 Zero Export Power

Interface Zero Export Power INPUT: +000W

Description
For zero export power, it tells grid output power. recommend to set it as +20w ~ 100w to ensure the hybrid inverter won ‘t feed power to grid. ( -20W means to generate electricity into the grid; +20W means to draw electricity from the grid)

35

5.5.4.9 BAT LOW CAP STANDBY

Interface

Description

BAT LOW CAP STANDBY 1.DISABLE 2.ENABLE

ENABLE: When there is no photovoltaic power supply at night, and the battery reports low voltage or low capacity, the machine will enter the standby state only the mains power to supply power to the load.
The default option is enable.

5.5.4.10 NO BAT LV ALARM

Interface
NO BAT LV ALARM 1.Enable 2.Disable

Description
ENABLE: When the battery voltage or SOC falls below the set value, the inverter will not display an alarm.
The default option is disable.

5.5.5 BAT SETTING
5.5.5.1 BAT SETTING
Interface BAT SETTING 1.BAT TYPE 2.DISC-DEPTH 3.CHARG-CURR 4.BAT-COMM
5.5.5.1.1 BAT TYPE

Description
This interface is used to select battery parameters.
Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu; Press Return button to return to setting interface.

Interface
BAT TYPE 1.DC-SOURCE 2.LEAD-ACID 3.Lithium

Description This interface is used to select battery type. Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu. Select the LEAD-ACID enter button to enter LEAD-ACID interface; Set 1 to test and disable the setting.

36

5.5.5.1.1.1 Lead-acid battery parameter

Interface
LEAD-ACID 1.CHARG-VOLT 2.BAT END VOLT 3.BAT OVP 4.BAT CAP
CHARGE VOLT INPUT: 55.0 UNIT: V

Description This interface is used to select LEAD-ACID battery parameter. Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu; 1. Charge voltage 2. BAT end voltage 3. BAT over voltage This interface is used to set the lead acid battery charging voltage. (The input value ranges from 40 to 58)

Interface BAT END VOLT INPUT: 45.0 UNIT: V
BAT OVP INPUT: 55.0 UNIT: V
BAT CAP INPUT: 0450 UNIT: AH

Description
This interface is used to set the lead acid battery discharging voltage. (The input value ranges from 40 to 51V)
Discharge cut-off voltage, as recommended by the battery manufacturer.
This interface is used to set the lead acid battery Charge
protection voltage. (The input value ranges from 50 to 59.5)
Charge protection voltage, as recommended by the battery manufacturer.
This interface is used to set the lead acid Battery capacity. It is related to the input power. (The input value ranges from 50 to 1000)
The battery capacity setting will affect the maximum charging current, for example, set 100 Ah, the maximum charging current is 100A*0.2=20A

5.5.5.2 BAT-COMM
Interface
BAT-COMM 1.RS485 2. CAN

Description
This interface is used to select battery communication BMS type.
Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu.
The default option is CAN.

37

5.5.6 Grid standard

Interface
GRID STD 1.AU 2. AU- W

Description This interface is used to select Grid standard. Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu.

3 . NZ 4. UK 5. PK 6. KR 7. PHI 8. CN 9. US- CA 10.THAIL 1 1 . ZA 12. CUST 13. POL 14. EN 50549 15. VDE 4105 16. JPN 17. ITA 18. SLO 19. CZE 20. SWE 21. HU 22. SK 23. AT 24. BE

1 : AU– Australia

2:AU-W– Western Australia

3:NZ — New Zealand

4: UK– United Kingdom

5:PK — PAKISTAN

6: KR– Korea

7: PHI–Philippines

8 : CN– China

9:US-CA — America

10: THAIL–THAILAND

11:ZA–South Africa

12: CUSTOM–User defined

13 : POL– Poland

14: EN50549

15: VDE4105

16 : JP– Japan

17: ITA– Italy

18: SLO-Slovinia

19: CZE ­ Czech Republic 20: SWE – Sweden

21: HU ­ Hungary

22: SK – Slovakia

23: AT ­ Austria

24: BE – Belgium

Note: Country list may differ from one device to another, this is for illustration.

38

5.5.7 RUN SETTING 5.5.7.1 RUN SETTING
Interface
RUN SETTING 1.REACT MODE 2.GRID POWER 3.DISC POWER 4.PV POWER 5.VAC-MIN 6.VAC- MAX 7.FAC-MIN 8.FAC-MAX 9.ACTIVE REP

Description
This interface is used to select run setting. Press Up/Down button to move corresponding options; Press Enter button to enter the selected menu. Factory default Settings. Please consult the distributor for modification.

5.5.7.2 REACT MODE
Interface
RUN SETTING 1.REACT MODE 2.GRID POWER 3.DISC POWER

Description
REACT MODE Reactive mode, including: POWER FACTOR, REACT POWER, QU WAVE, QP WAVE.(For specific country if required by the local grid.)

REACT MODE 1.POWER FACTOR 2.REACT POWER 3.QU WAVE 4.QP WAVE
POWER FACTOR INPUT: C1.00

QU WAVE: Voltage-reactive curve. QP WAVE: Active power-reactive power curve. (These two functions are not available on the screen, please contact the distributor if you need to use them.)
Power Factor: The input value should range between L0.80 and or C0.80.

REACT POWER INPUT: +00%

REACT POWER: Reactive power control
The input value should range between -60% and +60%, which varies with the standard.

39

5.5.7.3 GRID POWER
Interface
GRID PERCENT INPUT: 100%

Description The input value is power percent of grid.

5.5.7.4 DISCHARGE POWER

Interface DISC PERCENT INPUT: 100%

Description The input value is power percent of battery discharge.

5.5.7.5 PV POWER
Interface PV PERCENT INPUT: 100%

Description The input value is power percent of PV.

5.5.7.6 VAC-MIN

Interface

GRID VOLT LOW

INPUT: 150

UNIT:

V

Description The input value of Grid low voltage. It is valid when grid mode chooses custom.

5.5.7.7 VAC-MAX

Interface

GRID VOLT HIGH

INPUT: 280

UNIT:

V

Description The input value of Grid high voltage. It is valid when grid mode choose custom.

40

5.5.7.8 FAC-MIN

Interface

GRID FREQ

LOW INPUT: 57.0

UNIT:

Hz

Description The input value of Grid low frequency. It is valid when grid mode choose custom.

5.5.7.9 FAC-MAX

Interface

GRID FREQ HIGH

INPUT: UNIT:

63.0 Hz

Description The input value of Grid high frequency. It is valid when grid mode choose custom.

41

5.5.7.10 ACTIVE REF
Interface ACTIVE Type 1.PWR-VOLT RES 2.PWR-FREQ RES 3.PFC-VOLT RES 4.PFC-FREQ RES 5.Anti-Island 6.Leak Current 7.Insul Detect

5.5.8 485 Address

Interface

485 ADDRESS

INPUT:

1

Description
1. PWR-VOLT RES: Generation voltage response . When the grid voltage is abnormal, the active power is limited, and the function is enabled when required by the national grid standard.
2. PWR-FREQ RES: Generation frequency response. When the power grid frequency is abnormal, the active power will be limited, and the function will be enabled if required by the national power grid standard.
3. PFC-VOLT RES: Charge voltage response. When the grid voltage is abnormal, the charging power will be limited, and the function will be enabled if required by the national grid standards.
4. PFC-FREQ RES: Charge frequency response. When the power grid frequency is abnormal, the charging power will be limited, and the function will be enabled if required by the national power grid standard.
2. Anti- Island: Anti- Islanding (The default option is enabled)
When the grid goes down, inverter will detect the loss of power and disconnect from the grid within milliseconds. It prevents your solar panels from feeding electricity into a downed power line.
3. Leak Current: Leak current detect
(The default option is enabled).
4. Insul detect: Insulation detect (The default option is enabled). When the insulation detection function is enabled in the grid-connected state, the insulation detection is performed once a day when the photovoltaic energy comes in, and the inverter switches to the By-pass band load. If the inverter is off-grid, the output will be disconnected during insulation detect and the load will stop working.
Description
This interface is used to select 485 address.

42

5.5.9 485 BAUD RATE
Interface
SELECT 1.2400 bps 2.4800 bps 3.9600 bps
5.5.10 LANGUAGE
Interface
LANGUAGE 1.Chinese 2.English

Description This interface is used to select 485 baud rate.
Description This interface is used to select language.

5.5.11 BACKLIGHT
Interface LIGHT TIME INPUT: 20 UNIT: SEC

Description This interface is used to set light time.

5.5.12 DATE/TIME
Interface
DATE/TIME DATE: 2021 – 12-25 TIME: 22:30:00 WEEK: Saturday
5.5.13 CLEAR REC
Interface DEL REC
1.CANCEL 2.CONFIRM

Description This interface is used to set date and time.
Description This interface is used to clear operation history.

43

5.5.14 PASSWORD

Interface
PASSWORD OLD: XXXXX NEW: XXXXX CONFIRM: XXXXX

Description This interface is used to set password.

5.5.15 MAINTENANCE

Interface
PASSWORD INPUT: XXXXX

Description This interface is used to enter maintenance.

5.5.16 FCTRY RESET
Interface FACTORY RESET 1.CANCEL 2.CONFIRM
5.5.17 ADVAN SET
Interface
ADVAN SET 1.Mode Set 2.Advan Ctrl 3.TOU Set

Description This interface is used to reset the inverter.
Description The hybrid inverter can be programmed to control how and when to use grid power. The advanced mode allows management of flexible loads and time -of- use billing. ADVAN SET: Advanced setting include: mode setting, advanced controls, TOU setting (time-of-use setting)

44

5.5.17.1 Mode Set
Interface
Mode Set 1.Disable 2. Sell first 3.SFC. Sell EN 4.SFC. Sell Dis

Description
There are three advanced mode available: Sell First, SFC. Sell EN, SFC. Sell Dis.
Sell First: First consider selling electricity to the grid. In this mode the anti- reflux setting is automatically disabled. The users can use this mode to sell back surplus solar power to grid. If time of use is enabled, the battery power can also be sold to grid.
SFC. Sell EN: Self-consumed mode electricity selling enable. In this mode, Solar energy provides power to the loads as first priority, if solar energy is sufficient to power all connected loads, solar energy excess power will provide to charge battery, and then redundant power will feed to grid. (See 1 .3 Work Modes for details
SFC. Sell Dis: Self-consumed mode electricity selling disable. In this mode, the CT limiters should be installed in the input of the inverter ‘s grid port. The hybrid inverter will not sell power to grid. Users can use this feature to ensure that the inverter does not feed power back to the grid.

5.5.17.2 Advan Ctr

Interface
Advanced Control 1.Grid Chg En 2. TOU En 3.Only PV Chg

TOU Set Start: 00:00

End:

00:00

Power: 00:00

Soc:

00:00

Description
There are also some attributes of these mode: Global Grid Charge Enable, Time -of- use Enable, PV Charge Only.
Global Grid Charge Enable: It is a high-level control attribute of grid charge enable. If time of use function is disabled, this attribute is used to judge whether or not to charge the battery by grid. If time of use function is enabled, the battery can be charged by grid only when the time slot grid charge attribute
is enabled.
Time -of- use Enable: There are 6 slots which can be programmed. If grid charge enables, the grid is used to power the load and charge the battery to target SOC at specific bat power attribute value. If selling electricity to the grid enable, the battery will discharge to target SOC at specific battery power attribute value.
PV Charge Only: If user don ‘t want to use grid to charge the battery in any time, please enable this attribute. The photovoltaic energy will be used first for the load, and then the excess energy will be used to charge the battery. If the photovoltaic energy is insufficient, the battery will power the load.

45

5.6 INQUIRE
5.6.1 INQUIRE

Interface
INQUIRE 1.INV MODULE 2. MODULE SN 3.FIRMWARE 4.RECORD 5.DIAGNOS

Description Press Up/Down button to move corresponding options; Press Enter button to jump to the selected menu. Press Return button to return to another interface.

5.6.1.1 INV MODULE

Interface MODEL
6K

Description This interface shows inverter model.

5.6.2 MODULE SN

Interface
S/ N GUID:XXXXXXXX XXXXXXXXXXXXX SN: FXXXXXXXXXXX

Description This interface shows module SN.

5.6.3 FIRMWARE

Interface
FIRMWARE ARM: V1. XX.XX DSP: V1. XX.XX

Description This interface shows Software version.

46

5.6.4 RUNNING RECORDS

Interface
REC (01) 02: Bat disconnect UP: 12-25 23:00 DOWN:
5.6.5 DIAGNOSE

Interface

DIAGNOSE

000000 000000 000000

000000 000000 000000

Description This interface show running records.

Factory internal use.

Description

5.7 STATISTIC

5.7.1 STATISTIC

Interface
STAT 1 . E – TODAY 2. E – MONTH 3 . E – YEAR 4.E- TOTAL

Description This interface shows inverter operation statistic. 1. Displays statistic for the day (kWh). 2. Displays statistic for the month (kWh). 3. Displays statistic for the year (kWh). 4. Displays statistic of the inverter (kWh).

Note:

1. E-TODAY/MONTH/YEAR/TOTAL INPUT PV / GRID ( Consume ) / BATD ( Battery discharge ) OUTPUT BATC ( Battery charge) / GRID ( Generation ) / CNSUM ( Load consume ).

2. If the inverter shut down before 24:00 on that day, and the day statistic will not be stored.

47

5.8 Autotest Fast

1. SETUP

14. AUTO TEST Testing 59.S1…
Test 59.S1 OK!
Testing 59.S2…
Test 59.S2 OK!
Testing 27.S1…
Test 27.S1 OK!
Testing 27.S2…
Test 27.S2 OK!
Testing 81>S1
Test 81>S1 OK!
Testing 81>S2…
Test 81>S2 OK!
Testing 81<S1…
Test 81<S1 OK!
Testing 81<S2…
Test 81<S2 OK!

Auto Test OK!

59.S1:228V 902ms

59.S2:229V 204ms

Press the Enter button and default password 00000 Press the Enter button to start Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait Wait
Press the up/down button to page through the test results

48

27.S1:228V 408ms
27.S2:227V 205ms
81>.S149.9Hz 103ms
81>.S249.9Hz 107ms
81<.S150.0Hz 105ms
81<.S250.1Hz 107ms

Press the up/down button to page through the test results
Press the up/down button to page through the test results
Press the up/down button to page through the test results
Press the up/down button to page through the test results
Press the up/down button to page through the test results
Press the up/down button to page through the test results

Object
27.S1 27.S2 59.S1 59.S2 81<S1
81<S2 81>S1
81>S2

Description Under voltage protection Under voltage protection Over voltage protection Over voltage protection
Under frequency protection Under frequency protection Over frequency protection Over frequency protection

49

6. Fault diagnosis and solutions

The inverter is easy to maintain. When you encounter the following problems, please refer to the Solutions below, and contact the local distributor if the problem remains unsolved. The following table lists some of the basic problems that may occur during the actual operation as well as their corresponding basic solutions.
Fault diagnosis table

Content

Codes

Explanation

Solutions

(1) Nothing needs to do, Wait one minute for the inverter to restart.

Dischg Over Cur

00

Battery discharge over current. When the battery is loaded, the
load is too large.

(2) Check whether the load is in compliance with the specification.
(3) Cut off all the power and shut down all the inverter; disconnect the load and plug in to restart inverter, then check.

(1) Check whether the load is in compliance with the maximum power of the inverter.

Over Load

(2) Cut off all the power and shut down all the

01

The load power is greater than other power (PV, BAT) .

inverter; disconnect the load and plug in to restart inverter, then check whether the load is

short circuited if the fault has been eliminated.

(3) Contact customer service if error warning continues .

Bat Disconnect

02

Battery Disconnect. (Battery voltage not identified)

(1) Check whether the battery is connected. Check if battery wiring port is open circuited.
(2) Contact customer service if error warning continues .

Bat Under Vol /Bat Under Capacity

(1) Verify the battery voltage is within operating

range.

03

Battery voltage/SOC is lower than the set value.
Both off grid and on grid

(2) If the battery voltage is too low, charge using the PV or grid.

discharge are forbidden.

(3) Battery under capacity , it is a normal

warning. When the battery capacity is not

sufficient . (SOC<100%-OFFGRID DOD)

50

Bat Low Volt/ Bat Low capacity

04

Battery voltage/SOC is lower than the set value.
On grid discharge is forbidden.

(1) Battery Low that setting capacity. (SOC<100%-DOD)

(2) Check the battery capacity or voltage .

Bat Over Vol

(1) Verify the battery voltage is within operating

05

The battery voltage is over than the Inverter maximum voltage.

range.

(2) Restart the inverter and wait until it

functions .

Grid over vol

06

Grid over vol

07

Grid voltage is abnormal.

(1) Check if the grid is abnormal.
(2) Restart the inverter and wait until it functions normally.
(3) Contact customer service if error warning continues .

Gfci low freq

08

Gfci low freq

09

Grid Frequency is abnormal.

(1) Check if the grid is abnormal.
(2) Restart the inverter and wait until it functions normally.
(3) Contact customer service if error warning continues.

(1) Check PV string for direct or indirect grounding phenomenon.

Gfci over

10

Inverter GFCI exceeds standard.

(2) Check peripherals of inverter for current

leakage.

(3) Contact the local inverter customer service if fault remains insoluble.

(1) Check the input mode setting is correct.

Bus under vol

(2) Restart the inverter and wait until it functions

13

BUS voltage is lower than normal. normally.

(3) Contact customer service if error warning continues.

(1) Check the input mode setting is correct.

Bus over vol

14

BUS voltage is over maximum value.

(2) Restart the inverter and wait until it functions

normally.

Inv over cur

15

The inverter current exceeds the Restart the inverter and wait until it functions

normal value.

normally.

51

Chg over cur

16

Battery charge current over than Restart the inverter and wait until it functions the Inverter maximum voltage. normally.

Inv under vol

18

Inv over vol

19

Inv Freq Abnor

20

lgbt temp high

21

INV voltage is abnormal.
INV frequency is abnormal. The inverter temperature is higher than the allowed value .

(1) Check if the INV voltage is abnormal.
(2) Restart the inverter and wait until it functions normally.
(3) Contact customer service if error warning continues .
(1) Check if the INV frequency is abnormal. Restart the inverter and wait until it functions normally.
(2) Contact customer service if error warning continues.
Cut off all the power of the inverter and wait one hour, then turn on the power of the inverter.

BMS sys erro

22

Bat over temp

23

The communication between batteries is faulty
Battery temperature is higher than the allowed value .

(1) Please check whether the communication between the batteries is normal.
(2) Contact customer service if error warning continues.
Disconnect the battery and reconnect it after an hour.

Bat UnderTemp

24

Battery temperature is lower than the allowed value .

Check the ambient temperature near the battery to see if it meets the specifications .

BMS comm.fail

Communication between lithium (1) Check the cable, crystal, Line sequence.

27

battery and inverter is abnormal

or not in communication .

(2) Checking the Battery switch .

Bat Fault

(1) Check whether the battery generates alarms.

28

An alarm or fault occurs in the battery system .

(2) Contact customer service if error warning

continues .

Grid Phase error

30

The power grid phase sequence is incorrectly connected.

Check power grid wiring

Arc Fault

31

PV Arc Fault.

(1) Check Photovoltaic panels , PV wire.
(2) Contact customer service if error warning continues .

52

Bus soft fail

32

Inv soft fail

33

BUS short

34

Inv short

35

Fan fault

36

PV iso low

37

Bus Relay Fault

38

Grid Relay Fault

39

EPS rly fault

40

Gfci fault

41

Selftest fail

44

System fault

45

Current Dcover

46

Voltage Dcover

47

The inverter may be damaged.

(1) Restart the inverter and wait until it functions normally.
(2) Contact customer service if error warning continues .

Fan fault . PV Low insulation impedance .

(1) Check whether the Inverter temperature is abnormal.
(2) Check whether the fan runs properly. ( If you can see it)
Check if the PE line is connected to the inverter and is connected to the ground. Contact customer service if error warning continues .

The inverter may be damaged.

(1) Restart the inverter and wait until it functions normally.
(2) Contact customer service if error warning continues .

Note: If an error occurs that is not listed in the table, Please Contact customer service

53

Warranty of Residential ESS
This warranty specified below applies to CFE RESS Creek to consumers through authorized resellers. The accessories and toolkits provided are not included. In the event of a major failure of your unit, you will be entitled to obtain a replacement unit and your warranty will be transferred to the new unit. The units must only be utilized with controllers or equipment which is explicitly deemed compatible. In order to supply a high-quality service, you should make sure the unit remains connected with Internet so that it can be remotely checked.
1 Purpose
The purpose of this warranty is to define the matters related to warranty policy of products.
2 Warranty Condition
2.1 Warranty Period The product warranty period is five (5) years, performance warranty ten (10) years from the sales date as mentioned in the Seller’s invoice to End Users (“Invoice Date”) or six(6) months from the date of manufacturing whichever comes first. This warranty period covers a capacity equivalent to one (1) full cycle per day. Full cycle: Discharge the nominal capacity of a fully charged product and fully charge it afterwards. Micro cycles sum up to full cycles according to amount of energy charged and discharged. Note: Products are unavailable to protect themselves from deep discharge/charging in condition of without communication connection. The products without communication connection warranty period is a 5(five) -year (1 full cycle per day) from the sales date as mentioned in the Seller’s invoice to End Users (” Inv oice Date”). Regarding self-discharging degradation, it is guaranteed for 180 days after ex-work. 2.2 Limitation of Warranty scope Under this Warranty, we are responsible for either product replacement or product repair. The Period of Performance Guarantee will continue on any repaired unit. In the
54

event of a replacement units then the Period of Performance guarantee will transfer to the replacement unit. In no event will be liable for any consequential, incidental or punitive damages (including without limitation of loss of profit, harm to goodwill or business reputation, or delay damages) arising from or out or the Product or its installation, use, performance or non-performance, or any defect or breach of warranty, whether based on contract, warranty, negligence, strict liability, or any other theory. Our aggregate liabilities, if any, in damages or otherwise, shall not exceed the purchase price paid by the Original Buyer for the product. 2.3 Exclusions of Warranty Damage or impairment to the product resulting from any of following activities is NOT covered by this warranty: Installation or use with any devices not approved as compatible. Failure to install or use the product in the way intended, or as demonstrated in the installation manual including incorrect-installation of cables and connections. Failure caused by charger or inverter unit. Incorrect transportation, storage, installation or wiring by consumers or installers; if buyers fail to use the original packing materials provided by sellers during the transportation of equipment, any damage or failure of the product shall not fall under the warranty scope of the product. Mistreatment of the product including incorrect installation environment, incorrect temperatures or using the units other than in the specified manner. Damage caused by any impact, physical trauma to the unit such as dropping or mishandling. Attempts to change the functionality of the unit in any way, exposure of the product influenced by movement or shaking following installation, or temperatures of more than 55°C or below -10°C. Using the product outside of the clearly stated performance criteria for the unit. Water ingress, corrosive gas damage or installation in dirty environments causing particles to affect performance.
55

Anyone other than those authorized may not modify, disassemble, repair or replace the product. The unit must carry clearly identifiable and authentic serial number and labels. Products suffered any external influences including unusual physical force, electrical stress (power failure surges, inrush current, lightning, flood, fire, accidental breakage, etc.). Extensive superficial damage to the case demonstrating impact or mishandling or poor protection of the product. Product damage and defect caused by deliberately or willful acts. Product failure not reported to the seller or authorized service partner within 1 week of appearance. The product not being operated for any period of 6 months or more. Unusual physical or electrical stress caused by force majeure, such as power failure surges, inrush current, lightning, flood, fire, accidental breakage, etc.;
3 Performance Warranty
Guarantees that CFE RESS product will retain greater than or equal to 70% of output energy capacity for 10 years from the Invoice date and follow the specification as well as the user manual provided. Capacity measurement conditions (referenced IEC: 62619) Ambient temperature: 25 ± 2 80%DOD Total energy/Usable energy measured under specific conditions from 0.2C CC/CV at DC side. But, if you suspect our verification, the product must be tested by an EU certified origination or a certified 3rd party testing company. Meanwhile, any 3rd party evaluation service fees shall be at your own expense, unless your claim is proven to be valid, in which case will be responsible for the testing costs.
4 Warranty Policy
If the product is not of acceptable quality upon arrival, the customer is entitled to request product repair or replacement.
5 About Service Products/Parts
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Service products or accessories could be used as new or refurbished condition and guarantees relevant performance is equal to or higher than replaced device. If the product is no longer sold in the market, promises to replace it with different kinds of products with equal or higher functions and performances, or the residual annual depreciation value of the paid price by the buyer within the time limit for performance guarantee.
6 Claim Policy
Whether to repair or replace the product will be determined in its sole discretion. Claims under this warranty must be proposed from authorized distributors who purchased the product. Meanwhile, you must notify your distributor of a claim by: Give a call or email to your distributor; Contract with hotline or email us directly within 48 hours of a faulty discovered. The following items must be included: The original purchase receipt or equal valid document; Description of the alleged defect(s) to your distributor after contacting service hotline or sending an email; The product’s serial number and the initial installation date. If the product is suspected to be faulty, the unit should be returned to appointed distributors at the cost of customers at approved costs. If the unit is deemed faulty after inspection by designated experts, we will dispatch a REPLACEMENT or FIXED unit and credit the cost of returning the unit to us for testing (based on standard acceptable logistical costs).
7 Out of Warranty
In the event the product is out of warranty, may (in its discretion) provide certain after-sales service to Original Buyer, but all related costs and expenses, such as parts, labor costs and travel expenses, shall be borne by Original Buyer. To request such after-sales service, Original Buyer must provide sufficient information about any defects, to enable authorized service partner to determine whether such defects are capable of being repaired.
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References

• CF Energy

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