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SUN2000-4.95KTL-JPL0
User Manual

7 System Maintenance

Issue 03 (2020-06-03)

Copyright © Huawei Technologies Co., Ltd.

50

Alarm ID Alarm

Name

Alarm
Severity

Cause

Suggestions

2051

Abnormal
Residual
Current

Major

Cause ID = 1

The insulation impedance of
the input side to PE decreases
when the solar inverter is
operating.

1.

If the alarm occurs occasionally,
the external circuit may be
abnormal temporarily. The solar
inverter automatically recovers
after the fault is rectified.

2.

If the alarm occurs frequently or
persists, check whether the
impedance between the PV string
and the ground is too low.

2062

Low
Insulation
Resistance

Major

Cause ID = 1



A short circuit occurs
between the PV array and
the ground.



The ambient air of the PV
array is damp and the
insulation between the PV
array and the ground is
poor.

1.

Check the output impedance of
the PV array to ground. If there is
a short circuit or lack of
insulation, rectify it.

2.

Check that the PE cable of the
solar inverter is correctly
connected.

3.

If you are sure that the impedance
is less than the default value in a
cloudy or rainy environment, log
in to the app, SmartLogger, or
NMS and set

Insulation

resistance protection

.

2063

Cabinet
Overtempe
rature

Minor

Cause ID = 1



The solar inverter is
installed in a place with
poor ventilation.



The ambient temperature is
too high.



The solar inverter is not
working properly.

1.

Check the ventilation and
ambient temperature of the solar
inverter installation position.

2.

If the ventilation is poor or the
ambient temperature exceeds the
upper threshold, improve the
ventilation and heat dissipation.

3.

If the ventilation and ambient
temperature both meet
requirements, contact your dealer
or Huawei technical support.

2064

Device
Fault

Major

Cause ID = 1–12

An unrecoverable fault has
occurred on a circuit inside the
solar inverter.

Turn off the AC output switch and
DC input switch, and then turn them
on after 5 minutes. If the fault
persists, contact your dealer or
Huawei technical support.

2065

Upgrade
Failed or
Version
Mismatch

Minor

Cause ID = 1, 2 and 4

The upgrade does not complete
normally.

1.

Perform an upgrade again.

2.

If the upgrade fails for multiple
times, contact your dealer or
Huawei technical support.

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Содержание SUN2000-4.95KTL-JPL0

Страница 1: ...SUN2000 4 95KTL JPL0 User Manual Issue 03 Date 2020 06 03 HUAWEI TECHNOLOGIES CO LTD ...

Страница 2: ...tomer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to c...

Страница 3: ...document are defined as follows Symbol Description Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Indicates a potentially hazardous si...

Страница 4: ...Changes between document issues are cumulative The latest document issue contains all the changes made in earlier issues Issue 03 2020 06 03 Updated C Restoring the Factory Defaults of a Solar Inverter Issue 02 2020 02 06 Updated 5 5 Connecting a Signal Cable Issue 01 2019 11 01 This issue is used for first office application FOA ...

Страница 5: ...view 7 2 2 Appearance 9 2 3 Label Description 10 2 4 Working Principle 12 3 Storage 15 4 Installation 16 4 1 Checking Before Installation 16 4 2 Tools and Instruments 17 4 3 Determining the Installation Position 18 4 4 Installing the Mounting Bracket 23 4 4 1 Wall mounted Installation 24 4 4 2 Support mounted Installation 25 4 5 Installing a Solar Inverter 27 5 Electrical Connections 29 5 1 Prepar...

Страница 6: ... Powering Off the System 43 7 System Maintenance 45 7 1 Routine Maintenance 45 7 2 Troubleshooting 46 8 Handling a Solar Inverter 52 8 1 Removing a Solar Inverter 52 8 2 Packing a Solar Inverter 52 8 3 Disposing of a Solar Inverter 52 A Technical Specifications 53 B Grid Code 56 C Restoring the Factory Defaults of a Solar Inverter 57 D Acronyms and Abbreviations 59 ...

Страница 7: ... resulting equipment malfunction component damage personal injuries or property damage are not covered under the warranty Follow local laws and regulations when installing operating or maintaining the equipment The safety instructions in this document are only supplements to local laws and regulations Huawei will not be liable for any consequences of the following circumstances Operation beyond th...

Страница 8: ...nsportation or installation in a timely manner Equipment with scratches cannot be exposed to an outdoor environment for a long period of time Do not open the host panel of the equipment Personal Safety If there is a probability of personal injury or equipment damage during operations on the equipment immediately stop the operations report the case to the supervisor and take feasible protective mea...

Страница 9: ...t in the absence of a properly installed ground conductor Ensure that the equipment is connected permanently to the protective ground Before operating the equipment check its electrical connection to ensure that it is securely grounded General Requirements Before connecting cables ensure that the equipment is intact Otherwise electric shocks or fire may occur Ensure that all electrical connections...

Страница 10: ...ilated environment To prevent fire due to high temperature ensure that the ventilation vents or heat dissipation system are not blocked when the equipment is running Do not expose the equipment to flammable or explosive gas or smoke Do not perform any operation on the equipment in such environments 1 5 Mechanical Safety Using Ladders Use wooden or fiberglass ladders when you need to perform live w...

Страница 11: ...rve the following safety precautions Wear goggles and protective gloves when drilling holes When drilling holes protect the equipment from shavings After drilling clean up any shavings that have accumulated inside or outside the equipment Moving Heavy Objects Be cautious to avoid injury when moving heavy objects When moving the equipment by hand wear protective gloves to prevent injuries 1 6 Commi...

Страница 12: ...cautions in this document and relevant documents Maintain the equipment with sufficient knowledge of this document and using proper tools and testing equipment Before maintaining the equipment power it off and follow the instructions on the delayed discharge label to ensure that the equipment is powered off Place temporary warning signs or erect fences to prevent unauthorized access to the mainten...

Страница 13: ...the power into the power grid Model Figure 2 1 Model description Table 2 1 Model description Label Meaning Description 1 Series SUN2000 single phase grid tied PV string inverter 2 Power 4 95K The power level is 4 95 kW 3 Topology TL transformerless 4 Region JP Japan 5 Design code L0 single phase inverter Networking The solar inverter applies to residential rooftop grid tied systems Typically a gri...

Страница 14: ...Figure 2 2 Networking dashed boxes indicate optional components A maximum of 10 solar inverters can be cascaded A PV string B SUN2000 C Combiner box D Power grid E Internet F Management system Supported Power Grid The solar inverter supports the single phase three wire power grid Figure 2 3 Supported power grid ...

Страница 15: ... 5 Mounting bracket 6 Heat sink 7 DC switch DC SWITCH 8 DC input terminals PV1 PV1 9 DC input terminals PV2 PV2 10 Ventilation valve 11 COM port COM 12 AC output port AC Table 2 2 LED indicators Category Status Description Run indication LED1 LED2 N A Steady green Steady green The solar inverter operates in grid tied mode Blinking green slowly on for 1s and then off for 1s Off The DC is on and the...

Страница 16: ...ng Off No communication 2 3 Label Description Enclosure Labels Table 2 3 Enclosure label description Label Name Meaning Delayed discharge Residual voltage exists after the solar inverter is powered off It takes 5 minutes for the solar inverter to discharge to the safe voltage Burn warning Do not touch a running solar inverter because the shell is hot when the solar inverter is running Electric sho...

Страница 17: ...e PE cable Operation warning Do not remove the connector when the solar inverter is running Serial number SN Indicates the solar inverter SN Media access control MAC address Indicates the MAC address The labels are for reference only Nameplate Figure 2 5 Nameplate 1 Trademark and product model 2 Key technical specifications 3 Compliance symbols 4 Company name and country of origin ...

Страница 18: ...Schematic Diagram The solar inverter receives inputs from up to four PV strings Then the inputs are grouped into two MPPT routes inside the solar inverter to track the maximum power point of the PV strings The DC power is then converted into single phase AC power through an inverter circuit Surge protection is supported on both the DC and AC sides Figure 2 6 Schematic diagram ...

Страница 19: ...tatus and enters the operating mode once the operating requirements are met The solar inverter enters the shutdown mode after detecting a shutdown command or a fault after startup Operating In operating mode The solar inverter converts DC power from PV strings into AC power and feeds the power to the power grid The solar inverter tracks the maximum power point to maximize the PV string output The ...

Страница 20: ...gies Co Ltd 14 Working Mode Description Shutdown In standby or operating mode the solar inverter enters shutdown mode after detecting a fault or shutdown command In shutdown mode the solar inverter enters standby mode after detecting a startup command or detecting that the fault has been rectified ...

Страница 21: ...ould be stored in a clean and dry place and be protected from dust and water vapor corrosion A maximum of 10 solar inverters can be stacked To avoid personal injury or device damage stack solar inverters with caution to prevent them from falling over Regular inspection is required during the storage Replace the packing materials that are damaged by insects or rodents in a timely manner If the sola...

Страница 22: ...damage is found or the solar inverter model is not what you requested do not unpack the package and contact your dealer as soon as possible You are advised to remove the packing materials within 24 hours before installing the solar inverter Package Contents After unpacking the solar inverter check that the contents are intact and complete If any damage is found or any component is missing contact ...

Страница 23: ... socket open end 13 mm applicable to M8 bolts torque range 0 15 N m Torque wrench open end 13 mm torque range 0 1 5 N m Diagonal pliers Wire strippers Torque screwdriver head M4 and M6 torque range 0 5 N m Rubber mallet Utility knife Cable cutter Crimping tool model H4TC0003 manufacturer Amphenol Open end wrench model H4TW0001 manufacturer Amphenol Cable tie Vacuum cleaner Multimeter DC voltage me...

Страница 24: ...ition Basic Requirements The solar inverter is protected to IP65 Do not install the solar inverter in a place where personnel are easy to come into contact with its enclosure and heat sink because these parts are extremely hot during operation Do not install the solar inverter near flammable or explosive materials Do not install the solar inverter at a place within children s reach The solar inver...

Страница 25: ...l temperature rise To extend the service life of the solar inverter install the solar inverter in a sheltered place or install an awning over the solar inverter Mounting Structure Requirements The mounting structure where the solar inverter is installed must be fire resistant Do not install the solar inverter on flammable building materials Ensure that the installation surface is solid enough to b...

Страница 26: ...eserve enough clearance around the solar inverter to ensure sufficient space for installation and heat dissipation Figure 4 2 Installation space When installing multiple solar inverters install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available Stacked installation is not recommended ...

Страница 27: ...anual 4 Installation Issue 03 2020 06 03 Copyright Huawei Technologies Co Ltd 21 Figure 4 3 Horizontal installation mode recommended Figure 4 4 Horizontal installation mode support mounted not shaded or exposed to direct sunlight ...

Страница 28: ...SUN2000 4 95KTL JPL0 User Manual 4 Installation Issue 03 2020 06 03 Copyright Huawei Technologies Co Ltd 22 Figure 4 5 Triangle installation mode recommended ...

Страница 29: ... JPL0 User Manual 4 Installation Issue 03 2020 06 03 Copyright Huawei Technologies Co Ltd 23 Figure 4 6 Stacked installation mode not recommended 4 4 Installing the Mounting Bracket Figure 4 7 Mounting hole dimensions ...

Страница 30: ... yourself and ensure that the wall meets the load bearing requirements of the solar inverter Figure 4 8 Expansion bolt composition 1 Bolt 2 Nut 3 Spring washer 4 Flat washer 5 Expansion sleeve When drilling holes avoid the water pipes and power cables buried in the wall To prevent dust inhalation or contact with eyes wear safety goggles and an anti dust respirator when drilling holes Clean up any ...

Страница 31: ...ation Prerequisites Prepare M6 stainless bolt assemblies including flat washers spring washers and M6 bolts with appropriate lengths as well as matched flat washers and nuts based on the support specifications Procedure Step 1 Determine the positions for drilling holes using the mounting bracket Level the positions of mounting holes using a level and mark the positions with a marker ...

Страница 32: ...06 03 Copyright Huawei Technologies Co Ltd 26 Figure 4 10 Determining hole positions Step 2 Drill holes using a hammer drill You are advised to apply anti rust paint on the hole positions for protection Figure 4 11 Drilling holes Step 3 Secure the mounting bracket ...

Страница 33: ...er lift the solar inverter from the packing case and transport it to the installation position Move the solar inverter with care to prevent device damage and personal injury Do not use the wiring terminals and ports at the bottom to support any weight of the solar inverter When you need to temporally place the solar inverter on the ground use foam paper or other protection material to prevent dama...

Страница 34: ...ies Co Ltd 28 Step 2 Install the solar inverter on the mounting bracket Step 3 Tighten screw assemblies Step 4 Optional Install an anti theft lock Prepare an anti theft lock suitable for the lock hole diameter Ф8 mm Keep the key to the anti theft lock Figure 4 14 Installing a solar inverter End ...

Страница 35: ...it are set to OFF position Otherwise the high voltage of the solar inverter may result in electric shocks The device damage caused by incorrect cable connections is beyond the warranty scope Only certified electricians are allowed to connect cables Operation personnel must wear proper PPE all the time when connecting cables The cable colors shown in cable connection schematic diagrams are for refe...

Страница 36: ...munication s cable Two core outdoor shielded cable 0 25 1 mm2 4 11 mm Prepared by the customer 3 AC output power cable Three core U O and W outdoor copper cable 3 5 5 5 mm2 10 21 mm Prepared by the customer 4 PE cable Single core outdoor copper cable 3 5 5 5 mm2 N A Prepared by the customer 5 2 Connecting a PE Cable Context It is recommended that the PE cable of the solar inverter be connected to ...

Страница 37: ...erminal is crimped must wrap the core wires completely The core wires must contact the OT terminal closely Wrap the wire crimping area with a heat shrinkable tube or PVC insulation tape The heat shrink tubing is used as an example When using a heat gun protect the solar inverter from being scorched Figure 5 2 Crimping an OT terminal A Core B Insulation layer C Heat shrink tubing D Hydraulic pliers...

Страница 38: ... silica gel or paint around the terminal after connecting the PE cable End 5 3 Connecting an AC Output Power Cable Prerequisites An AC switch must be installed on the AC side of the solar inverter to ensure that the solar inverter can be safely disconnected from the power grid Do not connect loads between the solar inverter and the AC switch Procedure Step 1 Connect the AC output power cable to th...

Страница 39: ... output cable is secured Failing to do so may cause solar inverter malfunction or damage to its AC connector Ensure that the cable is not twisted Figure 5 4 Assembling anAC connector The cable colors shown in figures are for reference only Select an appropriate cable according to the local standards For the core installation method and the length for cable stripping see the instructions on the sid...

Страница 40: ...nnected securely Figure 5 6 Securing an AC connector Step 3 Check the route of the AC output power cable Figure 5 7 Cabling requirements End Follow up Procedure Before removing the AC connector ensure that the DC switch at the bottom of the solar inverter and all the switches connecting to it are set to OFF position To remove the AC connector from the solar inverter perform the operations in rever...

Страница 41: ...verter do not remove the watertight cap from the DC input terminal Otherwise the IP rating of the solar inverter will be affected Ensure that the following conditions are met Otherwise the solar inverter may be damaged or even a fire could happen The open circuit voltage of each PV string is always lower than or equal to 600 V DC The polarities of electric connections are correct on the DC input s...

Страница 42: ...ly installed or routed In this case an AC or DC short circuit may occur and damage the solar inverter The caused device damage is not covered under any warranty The solar inverter supports Y type terminals Context Figure 5 9 DC input terminals 1 Terminals of DC input 1 2 Terminals of DC input 2 Procedure Step 1 Assemble positive and negative connectors Use the positive and negative metal terminals...

Страница 43: ...ive and negative metal terminals pull the DC input power cables back to ensure that they are connected securely Insert the crimped metal terminals of the positive and negative power cables into the appropriate positive and negative connectors Then pull back the DC input power cables to ensure that they are connected securely Figure 5 10 Assembling a DC connector Step 2 Insert the positive and nega...

Страница 44: ... covered under any warranty Wait until the solar irradiance declines at night and the PV string current drops below 0 5 A Then turn off the DC switch remove the positive and negative connectors and rectify the connection of the DC input power cables End Follow up Procedure Before removing the positive and negative connectors ensure that the DC SWITCH is set to OFF To remove the positive and negati...

Страница 45: ...rt Table 5 2 COM port pin definitions No Pin Definition Description 1 485B1 RS485B RS485 differential signal Cascades solar inverters for RS485 communication 2 485A1 RS485A RS485 differential signal 3 485B2 RS485B RS485 differential signal Cascades solar inverters for RS485 communication 4 485A2 RS485A RS485 differential signal 5 N A N A N A 6 N A N A N A 7 PE Shielding ground Connects to the shie...

Страница 46: ...er Ensure that the exposed core is totally inserted into the cable hole Ensure that the signal cable is connected securely Ensure that the cable is not twisted Ensure that the signal connector is connected securely Figure 5 14 Connecting RS485 communications cables 4 8 mm four hole rubber plug Block unused cable holes using plugs and tighten cable glands If two signal cables are required ensure th...

Страница 47: ...logies Co Ltd 41 Figure 5 16 Connecting RS485 communications cables 4 8 mm two hole rubber plug Block unused cable holes using plugs and tighten cable glands If two signal cables are required ensure that they have the same outer diameter Figure 5 17 Blocking a cable hole 4 8 mm two hole rubber plug End ...

Страница 48: ...ed by the customer 3 Cable tie Cables are evenly tied and no burr exists 4 Grounding The PE cable is connected correctly securely and reliably 5 DC switch The DC switch on the solar inverter and all the switches connected to it are set to OFF position 6 Cable connections The AC output power cable and DC input power cables are connected correctly securely and reliably 7 Unused terminals and ports U...

Страница 49: ...s over the SmartLogger see the SmartACBox 10 In 1 Out Smart AC Combiner Box Quick Guide Delivering a reset shutdown or upgrade command to the solar inverters may cause power grid connection failure which affects the energy yield Only professionals are allowed to set the grid parameters protection parameters feature parameters and power adjustment parameters of the solar inverters If the grid param...

Страница 50: ... Ltd 44 Procedure Step 1 Run a shutdown command on the SmartLogger or NMS Step 2 Turn off the AC switch between the solar inverter and the power grid Step 3 Turn off the DC switch at the bottom of the solar inverter Step 4 Turn off the DC switch between the PV string and the solar inverter if there is any End ...

Страница 51: ...or foreign matter or the overall health of the solar inverter Once every twelve months or every time an abnormality is detected System running status Check that the solar inverter is not damaged or deformed Once every twelve months Electrical connections Check that cables are securely connected Check that cables are intact and that in particular the parts touching the metallic surface are not scra...

Страница 52: ...e maximum solar inverter input voltage The following is the mapping between PV strings and alarm cause IDs Cause ID 1 PV string 1 Cause ID 2 PV string 2 Reduce the number of PV modules connected in series to the PV string until the PV string open circuit voltage is less than or equal to the maximum solar inverter input voltage After the PV array configuration is corrected the alarm disappears 2011...

Страница 53: ...the local power operator If yes log in to the SmartLogger or network management system NMS to modify the grid undervoltage protection threshold with the consent of the local power operator 3 If the fault persists for a long time check the connection between the AC switch and the output power cable 2034 Grid Overvolta ge Major Cause ID 1 The grid voltage exceeds the higher threshold or the high vol...

Страница 54: ... check the connection of the AC output power cables 4 If the AC output power cables are correctly connected but the alarm persists and affects the energy yield of the PV plant contact the local power operator 2036 Grid Overfrequ ency Major Cause ID 1 Power grid exception The actual power grid frequency is higher than the standard requirement for the local power grid 1 If the alarm occurs occasiona...

Страница 55: ...orarily The solar inverter automatically recovers after detecting that the power grid becomes normal 2 If the alarm occurs frequently check whether the power grid frequency is within the acceptable range If no contact the local power operator 2039 Output Overcurre nt Major Cause ID 1 The power grid voltage drops dramatically or the power grid is short circuited As a result the solar inverter trans...

Страница 56: ...ou are sure that the impedance is less than the default value in a cloudy or rainy environment log in to the app SmartLogger or NMS and set Insulation resistance protection 2063 Cabinet Overtempe rature Minor Cause ID 1 The solar inverter is installed in a place with poor ventilation The ambient temperature is too high The solar inverter is not working properly 1 Check the ventilation and ambient ...

Страница 57: ...connection voltage of the solar inverter is normal 2071 Passive Islanding Major Cause ID 1 When the power grid experiences an AC power outage the solar inverter detects an island grid passively Check that the grid connection voltage of the solar inverter is normal 2072 Transient AC Overvolta ge Major Cause ID 1 The solar inverter detects that the phase voltage exceeds the transient AC overvoltage ...

Страница 58: ... PE cable Step 3 Remove the solar inverter from the mounting bracket Step 4 Remove the mounting bracket End 8 2 Packing a Solar Inverter If the original packaging is available put the solar inverter inside it and then seal it using adhesive tape If the original packaging is unavailable put the solar inverter inside a suitable hard carton and seal it properly 8 3 Disposing of a Solar Inverter If th...

Страница 59: ...iency JIS 97 Input Item SUN2000 4 95KTL JPL0 Maximum input voltagea 600 V Operating voltage rangeb 80 600 V Maximum input current One input 16 A two inputs 30 A Maximum short circuit current One input 25 A two inputs 40 A Startup voltage range 100 600 V MPPT voltage range 80 530 V Full load MPPT voltage range 175 530 V Rated input voltage 320 V Number of inputs 2 Number of MPP trackers 2 ...

Страница 60: ...ating voltage range the solar inverter cannot work properly Output Item SUN2000 4 95KTL JPL0 Rated output power 4950 W Maximum apparent power 5210 VA Rated output voltage 202 V Output frequency 47 5 51Hz 50Hz 58 2 61 2Hz 60Hz Maximum output current 27 5 A Power factor 0 8 leading and 0 8 lagging Maximum total harmonic distortion rated power 3 Protection Item SUN2000 4 95KTL JPL0 Anti islanding pro...

Страница 61: ...tection Supported Communication Item SUN2000 4 95KTL JPL0 Display LED indicators RS485 Supported Common Parameters Item SUN2000 4 95KTL JPL0 Topology Transformerless IP rating IP65 Cooling mode Free cooling Dimensions W x H x D 367 mm x 367 mm x 138 mm Net weight 12 6 kg Storage temperature 40 C to 70 C Storage humidity 5 95 RH Operating temperature 30 C to 60 C Operating humidity 0 100 RH Operati...

Страница 62: ...ologies Co Ltd 56 B Grid Code The grid codes are subject to change The listed codes are for reference only Table B 1 Grid codes No Grid Code Description Grid Voltage Grid Frequency 1 Japan LV202 50Hz Japan low voltage grid 202 V 50 Hz 2 Japan LV202 60Hz Japan low voltage grid 202 V 60 Hz ...

Страница 63: ...Remarks Feature parameters MPPT multi peak scanning Log in to the SmartLogger WebUI as Advanced User or admin and choose Monitoring Running Param Feature parameters to set the parameters MPPT multi peak scan interval min Upgrade delay Communication interruption duration min Power Adjustment Schedule instruction valid duration s Log in to the SmartLogger WebUI as Special User or admin and choose Mo...

Страница 64: ...3 2020 06 03 Copyright Huawei Technologies Co Ltd 58 Category Parameter Remarks Communication address Log in to the SmartLogger WebUI as Advanced User Special User or admin and choose Maintenance Device Mgmt Connect Device Click Auto Assign Address to complete address assignment and adjustment ...

Страница 65: ...D Acronyms and Abbreviations Issue 03 2020 06 03 Copyright Huawei Technologies Co Ltd 59 D Acronyms and Abbreviations M MPP maximum power point MPPT maximum power point tracking P PV photovoltaic R RCMU residual current monitoring unit ...

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