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31186168 SUN2000 (8KTL-28KTL) User Manual Issue Date 2014-07-30 HUAWEI TECHNOLOGIES CO., LTD.
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Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. 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"...
About This Document About This Document Purpose This document describes the SUN2000 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting. Get familiar with this document before installing and operating the SUN2000. This document is under continuous updates and correcting. You can download the latest version from http://support.huawei.com/carrier/.
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Modified the output power of the inverter at different temperatures in General Data in Technical Specifications. Issue 04 (2013-12-15) Added descriptions about the SUN2000-23KTL. Issue 03 (2013-10-11) Added descriptions about the SUN2000-28KTL. Issue 02 (2013-06-08) This issue is the second official release.
5.4.2 Connecting RS485 Communications Cables ......................59 6 System Operation ........................64 6.1 Checking Before Power-On ............................64 6.2 Powering on the SUN2000 ............................64 6.3 Setting Initialization Parameters ..........................65 7 LCD ..............................68 7.1 Monitoring Menu Hierarchy ............................68 7.2 Monitoring Operations ..............................
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7.2.15 Enabling the USB Guide Function ........................102 7.2.16 Viewing the System Version ..........................105 8 Maintenance ..........................107 8.1 Powering Off the SUN2000 ............................107 8.2 Daily Maintenance ..............................108 8.3 Common Faults and Troubleshooting Measures ....................... 108 9 Inverter-Associated Operations ..................... 116 9.1 Removing the SUN2000 ............................
To ensure good heat dissipation and reserve enough space for installing the SUN2000, the SUN2000 is at least 200 mm, 500 mm, 300 mm, and 1000 mm away from objects on its both sides, top, bottom, and front respectively.
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Do not disconnect the DC power supply during the SUN2000 operation. Do not touch a running SUN2000 except for the liquid crystal display (LCD) and DC switch because the shelf and heat sinks become hot during the SUN2000 operation.
Introduction of the function, model and application of the SUN2000. Function The SUN2000 is a grid-tied PV inverter. It converts the high-voltage DC power generated by PV arrays into sine wave three-phase AC power with the same frequency and phase as the power grid.
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23 kW SUN2000-28KTL 27.5 kW Application The SUN2000 applies to commercial rooftop grid-tied systems and large power station grid-tied systems. Typically, the grid-tied system consists of PV modules, grid-tied inverters, and AC distribution modules (ACDUs), as shown in Figure 2-2.
Figure 2-3 Power grid modes supported by the SUN2000-8KTL to SUN2000-23KTL Figure 2-4 Power grid modes supported by the SUN2000-28KTL 2.2 Appearance This topic describes the SUN2000 in terms of its appearance and specifications. Issue 07 (2014-07-30) Huawei Proprietary and Confidential...
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Front view 1. Shell 2. Control panel The LCD displays the SUN2000 operating data, such as input power, output power, and electricity output. The indicators show the SUN2000 operating status and its faults. Issue 07 (2014-07-30) Huawei Proprietary and Confidential...
Note: The objects in blue are dustproof plugs. Remove them before connecting DC input power cables. 2.3 Symbol Conventions Introduction of the symbols and nameplates of the SUN2000. Symbol Table 2-2 describes all symbols on the SUN2000. Table 2-2 Symbols...
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SUN2000, see Inverter-Associated Operations. Identifying Nameplates Each SUN2000 is labeled with a nameplate on which you can view the model, technical specifications, and certification label, as shown in Figure 2-5. Issue 07 (2014-07-30) Huawei Proprietary and Confidential...
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2 Overview Figure 2-5 Nameplates 1. Trademark and product model of the 2. Technical specifications of the SUN2000 SUN2000 3. Labels of certifications that the SUN2000 4. Company name and the complies with manufacturing place Table 2-3 describes certification labels.
2. Indicators 3. Buttons The LCD displays the SUN2000 data in graphics and characters, including the operating information, alarm information, system parameters, and user parameters. If you do not press any button within 90s, the liquid crystal display (LCD) returns to the...
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Allows you to view the power flow from the PV strings to the SUN2000 and view the voltage and current of each input. Allows you to view the power flow from the SUN2000 to the power grid and view the voltage and current of each output. −...
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2 Overview Figure 2-8 Idle: Irradiation Detecting Figure 2-9 shows the displayed page when the SUN2000 detects a fault or a shutdown command. Figure 2-9 Shutdown: Fault Indicators The SUN2000 monitoring panel provides four indicators, which are described in Table 2-4.
(on for 1s and warning. For details about the then off for 4s) warning, see 7.2.2 Viewing Alarm Records. Buttons The SUN2000 monitoring panel has four buttons, which are described in Table 2-5. Table 2-5 Button description Button Name Function Return...
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The SUN2000-8KTL, SUN2000-10KTL, and SUN2000-12KTL receive inputs from four PV strings. Then the inputs are grouped into two MPPT routes inside the SUN2000 to track the maximum power point of the PV strings. After that, the DC power is converted into three-phase AC power through an inverter circuit.
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The DC switch disconnects internal circuits from the DC input to facilitate maintenance. The category II DC surge protection device (SPD) on the input side provides the discharge loop for the overvoltage power on the DC side to protect the SUN2000 internal circuits from DC overvoltage. ...
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Standby The SUN2000 enters the standby mode when the external environment does not meet the requirements for starting the SUN2000. In standby mode, the SUN2000 continuously performs the self-check and enters the operating mode once the operation requirements are met.
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Mode a shutdown command in standby or operating mode. The SUN2000 may shut down due to a fault, after receiving a shutdown command, or after manual operation. After detecting a startup command or that a fault is rectified, the SUN2000 enters the standby mode.
Do not store the SUN2000 in areas with flammable or explosive materials. Do not install the SUN2000 in places prone to body contact because the SUN2000 shelf and heat sinks become hot during the SUN2000 operation. 4.1 Checking Before Installation Before unpacking, check that the packing materials are intact.
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User Manual 4 Installation Checking Deliverables After unpacking the SUN2000, check whether deliverables are intact and complete. If any damage is found or any component is missing, contact the dealer. Figure 4-1 shows the components and mechanical parts that should be delivered.
Positive and negative metal terminals are packed with positive and negative connectors respectively. Separate the positive from negative metal terminals after unpacking the SUN2000 to avoid confusing the polarities. Documentation 1 Includes the quick installation guide in paper copies and user manual in a CD-ROM.
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To ensure good heat dissipation and reserve enough space for installing the SUN2000, the SUN2000 is at least 200 mm, 500 mm, 300 mm, and 1000 mm away from objects on its both sides, top, bottom, and front respectively, as shown in Figure 4-2.
4.4 Moving the SUN2000 This topic describes how to move the SUN2000 to the installation position horizontally. Procedure Step 1 Insert hands into the slots on both sides of the SUN2000 and hold the handles, as shown in Figure 4-5 Figure 4-6.
Figure 4-5 Moving the SUN2000 (1) Figure 4-6 Moving the SUN2000 (2) Step 2 Lift the SUN2000 from the packing case and move it to the installation position. To prevent device damage and personal injury, keep balance when moving the SUN2000 because the SUN2000 is heavy.
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5.1 Installing PGND Cables. You are advised to install the SUN2000 in a position in the same height as your eyes to facilitate operation and maintenance. Procedure Step 1 Determine the positions for drilling holes using the rear panel in the packing case, and mark...
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Figure 4-10 Securing a rear panel Step 4 Hold the handle at the bottom of the SUN2000 with one hand and hold the end of the other handle near the SUN2000 top with the other end, and then stand the SUN2000, as shown in Figure 4-11.
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SUN2000 (8KTL-28KTL) User Manual 4 Installation Figure 4-12 Mounting a SUN2000 on a rear panel Step 6 Tighten the two hexagon screws at the bottom of the SUN2000 to a torque of 5 N.m, as shown in Figure 4-13. Figure 4-13 Tightening hexagon screws...
4 Installation Step 7 (Optional) Install an antitheft lock, as shown in Figure 4-14. The function of an antitheft lock is to secure the SUN2000 to the rear panel and protect it from stealing. Figure 4-14 Installing an antitheft lock ----End 4.6 Wall-mounting the SUN2000...
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5.1 Installing PGND Cables. You are advised to install the SUN2000 in a position in the same height as your eyes to facilitate operation and maintenance. Procedure Step 1 Determine the positions for drilling holes using the rear panel in the packing case, and mark...
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Figure 4-20 Installing lifting eyes Step 7 Use one hand to hold the handle at the bottom of the SUN2000 and use the other hand to hold the handle close to the top of the SUN2000 and then stand the SUN2000, as shown in Figure 4-21.
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To prevent device damage and personal injury, keep balance when lifting the SUN2000 because the SUN2000 has a heavy top. Figure 4-21 Lifting the SUN2000 Step 8 Route a rope through the lifting eyes and hoist the SUN2000, as shown in Figure 4-22. The rope must bear the SUN2000 weight.
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SUN2000 (8KTL-28KTL) User Manual 4 Installation Figure 4-22 Hoisting the SUN2000 Step 9 Mount the SUN2000 on the rear panel and keep them aligned with each other, as shown in Figure 4-23 Figure 4-24. Figure 4-23 Mounting the SUN2000 on the rear panel (front view)
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SUN2000 (8KTL-28KTL) User Manual 4 Installation Figure 4-24 Mounting the SUN2000 on the rear panel (rear view) Step 10 Tighten the two hexagon screws at the bottom of the SUN2000 to a torque of 5 N.m, as shown in Figure 4-25.
Select cables according to local cable specifications (Yellow-green wires are only used for grounding). 5.1 Installing PGND Cables Connect the SUN2000 to a ground bar over protection ground (PGND) cables for grounding purposes. Prerequisites A ground cable has been prepared. Huawei recommends an outdoor power cable with a cross-sectional area of 6 mm (10AWG).
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5 Electrical Connections Context Good grounding for the SUN2000 can help resist the impact of the surge voltage and improve the EMI performance. First connect the PGND cable before connecting the AC power cable, DC power cable, and communication cable.
User Manual 5 Electrical Connections 5.2 Connecting AC Output Power Cables Connect the SUN2000 to the AC power distribution frame (PDF) or power grid over AC input power cables. Prerequisites An independent there-phase circuit breaker for each inverter must be installed at the output side to ensure that the inverter can be securely disconnected.
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The preceding figure shows only how to strip cables for the SUN2000-8KTL to SUN2000-23KTL. For the SUN2000-28KTL, align the neutral cable with the protective jacket and cut off the neutral cable. When cutting off the cable, take protective measures to prevent the cable from splashing and hurting people.
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Figure 5-13 Installing a cable sealing cover Step 8 Connect the AC output connector to the bayonet coupling of the AC output wiring terminal on the SUN2000 and rotate it clockwise until you hear a "click" sound, as shown in Figure 5-14.
SUN2000 and the power grid. Figure 5-15 Removing an AC output connector 5.3 Installing DC Input Power Cables Connect the SUN2000 to PV arrays over DC input power cables Prerequisites PV modules generate electric energy when exposed to sunlight and can create an electrical shock hazard.
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The positive and negative terminals of PV arrays connect to the positive and negative DC input terminals respectively. If the SUN2000 connects to the power grid directly, ensure that the PV arrays are not grounded. If the DC voltage is a non-zero value between the positive terminal of PV arrays and the ground, the PV arrays are subject to insulation faults.
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Positive and negative metal terminals are packed with positive and negative connectors respectively. Separate the positive from negative metal terminals after unpacking the SUN2000 to avoid confusing the polarities. Procedure Step 1 Remove cable glands from the positive and negative connectors.
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Step 6 Take off the blue dustproof plugs from the bottom of the DC input connectors. Step 7 Insert the positive and negative connectors into corresponding DC input terminals of the SUN2000 until you hear a "click" sound, as shown in Figure 5-23.
0.8 mm. ----End Follow-up Procedure To remove the positive and negative connectors from the SUN2000, insert a removal wrench into the bayonet and press the wrench with an appropriate strength, as shown in Figure 5-24.
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RS485 Port The SUN2000 communicates with the RS485 port to send the data of energy yield, alarm information, and running status to the PC terminal of the element management system (EMS) monitoring software (such as the NetEco) and the local data collector (such as the Smart Logger).
(a maximum of 20 SUN2000s is supported in one daisy chain). 5.4.2 Connecting RS485 Communications Cables Connect the SUN2000 to communications equipment (such as the data collector and PC terminal) over RS485 communications cables. Context You are recommended to use 24 AWG outdoor shielded network cables with the internal resistance less than or equal to 1.5 ohms/10 m and external diameter of 4.5 mm to 7.5 mm as...
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Step 7 Secure the sealing nut to the housing, as shown in Figure 5-32. Figure 5-32 Connecting a communications cable (5) Step 8 Insert the plug into the RS485 port on the SUN2000, and tighten the screw nut. ----End Issue 07 (2014-07-30) Huawei Proprietary and Confidential...
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User Manual 5 Electrical Connections Follow-up Procedure To remove an RJ45 connector from the SUN2000, remove the screw nut, press the clip on the RJ45 connector, and then pull out the shielded RJ45 connector. Issue 07 (2014-07-30) Huawei Proprietary and Confidential...
6.2 Powering on the SUN2000 This topic describes how to power on the SUN2000 after electrical connection is complete. Procedure Step 1 Switch on the AC circuit breaker between the SUN2000 and the power grid. If you perform Step 2...
The initialization parameters include the system language, system time, and power grid standard code. Context If the SUN2000 is started for the first time, set the initialization parameters by referring to this section. If the SUN2000 is not started for the first time, it will enter the startup detection page. Procedure ...
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Advanced User , and choose Settings > Init Wizard to set the grid code. The SUN2000-28KTL applies only to the medium-voltage grid-feeding scenarios. The power grid standard codes supported are the China medium-voltage grid standard code,...
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6 System Operation For multiple SUN2000s networked, after the initialization parameters are set, you need to set the address and baud rate for each SUN2000 by following the rules below: Addresses for all SUN2000s in the same daisy chain should be different from each other.
7.2.1 Viewing System Operating Information This topic describes how to view the SUN2000 operating information on the monitoring panel. The operating information includes the daily energy yield, monthly energy yield, year energy yield, historical energy yield, total energy yield, ISO value, input data, output data, and the cabinet temperature.
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9. On the ISO Value page, view the day ISO value on the current month. To view the maximum insulation resistance detected when the SUN2000 connects to the power grid for the last time on each day of the current month, press 10.
User Manual 7 LCD Operation Procedure 12. On the Cabinet Temp. page, view the temperature of the input SUN2000. ----End 7.2.2 Viewing Alarm Records This topic describes how to view active and historical alarm records and set the alarm record sort mode on the monitoring panel.
The pages will be displayed in the selected language. ----End 7.2.5 Setting the Contrast This topic describes how to set the SUN2000 contrast on the monitoring panel. Procedure The following table describes the procedure for setting the contrast. The parameter values in the figures are for reference only.
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30 seconds. If you exit from the Settings page and log in again within 30 seconds, no authentication is required. 4. Choose User Param., and press Log in to the SUN2000 as Advanced User. 5. Choose Contrast by pressing , and...
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30 seconds. If you exit from the Settings page and log in again within 30 seconds, no authentication is required. 4. Choose User Param., and press Log in to the SUN2000 as Advanced User. 5. Set the currency. 1. Select Currency by pressing...
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Advanced User, and Special User. The initial password for Common User, Advanced User, and Special User is 000001. If you forget the password, contact Huawei technical support for a dynamic password that is effective only on the current day. Change the password after login.
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The selectable user name is Advanced User. The initial passwords for Advanced User is 000001. If you forget the password, contact Huawei technical support for a dynamic password that is effective only on the current day. Change the password after login.
Connect. ----End 7.2.9 Setting Protection Parameters This topic describes how to set SUN2000 protection parameters on the monitoring panel. Procedure The following table describes the procedure for setting protection parameters. The parameter values in the figures are for reference only.
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30 seconds, no authentication is required. 4. Choose Protect Param. and press If you log in to the SUN2000 as Advanced User, perform step 5. If you log in to the SUN2000 as Special User, perform step 6.
SUN2000 as Advanced User. ----End 7.2.10 Setting Feature Parameters This topic describes how to set SUN2000 feature parameters on the monitoring panel. Procedure The following table describes the procedure for setting feature parameters. The parameter values in the figures are for reference only.
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30 seconds, no authentication is required. 4. Choose Feature Param. and press If you log in to the SUN2000 as Advanced User, perform step 5 only. If you log in to the SUN2000 as Special User, perform step 6 only.
Special User. ----End 7.2.11 Setting Isolation Parameters This topic describes how to set SUN2000 isolation parameters on the monitoring panel. Context To ground PV arrays, install a three-phase four-wire isolation transformer and the parameter of Isolation is set to Input Grounded, With TF.
The selectable user names are Common User and Advanced User. The initial password for Common User and Advanced User is 000001. If you forget the password, contact Huawei technical support for a dynamic password that is effective only on the current day. Change the password after login.
7 LCD 7.2.13 Restoring Factory Settings This topic describes how to restore factory settings for the SUN2000 on the monitoring panel. After restoring factory settings is complete, all parameters except the current date and time will restore the default factory settings. However, the operating information, alarm records, and system logs do not change.
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30 seconds. If you exit from the Settings page and log in again within 30 seconds, no authentication is required. 4. Choose Restore Defaults, and press Log in to the SUN2000 as Advanced User. 5. On the displayed page, press 6. Press to complete the settings.
The selectable user names are Advanced User and Special User. The initial password for Advanced User and Special User is 000001. If you forget the password, contact Huawei technical support for a dynamic password that is effective only on the current day. Change the password after login.
Firmware upgrade: Upgrade the SUN2000 software. Configuration importing: Load the existing configuration file to the SUN2000 and update the configuration parameters in batches (all parameters set on the LCD). Data exporting: Download the alarm, performance, log data in the file format to the local computer to facilitate analysis.
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The user name can be set to Advanced User and Special User. The initial password for Advanced User and Special User is 000001. If you forget the password, contact Huawei technical support for a dynamic password that is effective only on the current day. Change the password after login.
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9 only. 6. To confirm the Current is correct, press NOTICE Firmware upgrade is allowed only when the SUN2000 is properly connected to the PV arrays (the PV connection indicator is green). Before upgrading the firmware, download the upgrade...
9. After the data is successfully exported, press ----End 7.2.16 Viewing the System Version This topic describes how to view the SUN2000 version on the monitoring panel. Procedure The following table describes the procedure for viewing the SUN2000 version. The parameter values in the figures are for reference only.
When maintaining or replacing the SUN2000, comply with the safety precautions and operation procedure specified in this section. Context After shutting down the SUN2000, the remaining electricity and heat may cause electrical shocks and body burns. Therefore, operate the SUN2000 five minutes later after the shutdown.
Before wiping the heat sink, ensure that the DC SWITCH is OFF and the circuit breaker between the SUN2000 and the power grid is disconnected. Wait at least for 5 minutes before wiping the heat sink. 8.3 Common Faults and Troubleshooting Measures This topic describes the common faults and troubleshooting measures for the SUN2000.
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8 Maintenance The alarm severity is defined as follows: Major: The SUN2000 enters the shutdown mode and disconnects from the power grid to stop generating electricity after a fault occurs. Minor: Some components are faulty but the SUN2000 can still generate electricity.
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SUN2000 (8KTL-28KTL) User Manual 8 Maintenance Alarm Alarm Alarm Causes Measures Name Severit 1. The SUN2000 detects its DC Bus Major Abnormal external external working Voltage conditions trigger the conditions in real time, Fault protection for the DC and therefore the...
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Abnormal external Reason ID = 4, 13, 14, 16, or Module conditions cause the Fault protection for the 1. The SUN2000 detects its inversion circuit inside external working the SUN2000. The conditions in real time, possible causes are as and therefore the...
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3. Check whether the grid voltage peak is too high. Reason ID = 27 or 28 1. The SUN2000 detects its external working conditions in real time, and therefore the SUN2000 automatically recovers to the normal...
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Major An unrecoverable fault Flip the DC switch on the Fault occurs on a circuit inside SUN2000 to OFF, wait for 5 the SUN2000. minutes, and flip the DC switch to ON. Check whether the fault is rectified. If no, contact Huawei technical support.
9.3 Disposing the SUN2000 This topic describes how to dispose the SUN2000. If the SUN2000 service life expires, dispose the SUN2000 according to the local rules about disposing electrical equipment waste, or return the SUN2000 to Huawei. Customers pay the expenses for disposing the SUN2000.
During the warranty period, the user should provide the invoice and date. The signs on the products should be clear. Otherwise, Huawei will not be liable for the quality assurance. The warranty period of this product is 60 months after it is unpacked and accepted. The start time must be within 30 days after the delivery date.