Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Issue 01 Date 2021-04-05 HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2021. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual About this Document About this Document Abstract This document describes the SUN2000-(15KTL-50KTL)-M3 series inverters (SUN2000 for short) in terms of installation, electrical connection, commissioning, maintenance, and troubleshooting, in the scenarios where the SUN2000 V100R001, SUN2000 V200R001, and SUN2000 V200R002 are replaced.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Symbol About this Document Remarks NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. Change History Changes between document issues are cumulative. The latest document issue contains all updates made in previous issues. Issue Issue 01 (2021-04-05) This issue is the first official release. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Contents Contents About this Document ..................................................................................................................... ii 1 Safety Information ........................................................................................................................ 1 1.1 General Safety ....................................................................................................
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Contents 6.1 Precautions.................................................................................................................................................................. 48 6.2 SUN2000 V100R001&V200R001 Replacement Scenario ......................................................................................... 48 6.2.1 Connecting the PE Cable ..........................................................
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Contents D Built-in PID Recovery ............................................................................................................. 123 E Resetting Password .................................................................................................................. 125 F Setting Dry Contact Scheduling Parameters ....................................................................... 126 G AFCI.........
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information 1 Safety Information 1.1 General Safety Statement Before installing, operating, and maintaining the equipment, read this document and observe all the safety instructions on the equipment and in this document. The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information Do not work with power on during installation.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information Professionals: personnel who are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, and maintenance Trained personnel: personnel who are technically trained, have required experience, are aware of possible hazards on themselves in certain operations, and are able to take protective measures
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information Before connecting a power cable, check that the label on the power cable is correct. If the equipment has multiple inputs, disconnect all the inputs before operating the equipment. When routing cables, ensure that a distance of at least 30 mm exists between the cables and heat-generating components or areas. This prevents damage to the insulation layer of the cables.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information When climbing a ladder, take the following precautions to reduce risks and ensure safety: − Keep your body steady. − Do not climb higher than the fourth rung of the ladder from the top. − Ensure that your body's center of gravity does not shift outside the legs of the ladder.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 1 Safety Information 1.7 Maintenance and Replacement High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage. Prior to maintenance, power off the equipment and strictly comply with the safety precautions in this document and relevant documents.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview 2 Overview 2.1 Overview Function The SUN2000 inverter is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power into the power grid.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Original Version 2 Overview Original Model Numbe r of PV Strings Replacement Model SUN2000-33KTL-A 8 SUN2000-30KTL-M3 SUN2000-36KTL 8 SUN2000-36KTL-M3 SUN2000-42KTL 8 SUN2000-42KTL-M3 SUN2000-43KTL-IN-C1 8 SUN2000-43KTL-INM3 SUN2000-50KTL, SUN2000-50KTL-C1 8 SUN2000-50KTL-M3 SUN2000-33KTL-US 8 SUN2000-33KTL-NAM 3 SUN2000-36KTL-US 8 SUN2000-36KTL-NAM 3 SUN2000-40KTL-US 8 SUN2000-40KTL-NAM 3 F
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual No. Description 2 Overview Value 43K: rated power of 43 kW 50K: rated power of 46 kW (480 V AC)/47.5 kW (500 V AC) 3 Topology TL: transformerless 4 Region IN: India NA: North America 5 Product ID M3: product series with an input voltage level of 1100 Va Note a: The maximum DC input voltage of some models is 1000 V.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview Figure 2-3 Power grid type Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview 2.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview 2.3 Label Description Nameplate Figure 2-5 Nameplate (1) Trademark and product model (2) Key technical parameters (3) Label information (4) Company name and country of origin The nameplate figure is for reference only. Enclosure Labels Symbol Issue 01 (2021-04-05) Name Description Delayed discharge Residual voltage exists after the SUN2000 is powered off.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Symbol Issue 01 (2021-04-05) 2 Overview Name Description Burn warning Do not touch a running SUN2000 because it generates high temperatures on the shell. Electric shock warning High voltage exists after the SUN2000 is powered on. Only qualified and trained electrical technicians are allowed to perform operations on the SUN2000. High touch current exists after the SUN2000 is powered on.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Symbol 2 Overview Name Description Indicator Indicates the SUN2000 operating information. SUN2000 serial number Indicates the serial number. SUN2000 WiFi login QR code Scan the QR code to connect to the Huawei SUN2000 WiFi network. 2.4 Working Principles 2.4.1 Circuit Diagram A SUN2000 can connect to a maximum of eight PV strings and has four MPPT circuits inside.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview Figure 2-6 Schematic diagram In the SUN2000 V100R001 and SUN2000 V200R001 replacement scenarios, only six PV strings can be connected to the SUN2000. Therefore, you are advised not to use PV7 and PV8. 2.4.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Figure 2-7 Working modes Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 2 Overview Table 2-3 Working mode description Working Mode Description Standby The SUN2000 enters Standby mode when the external environment does not meet the operating requirements. In Standby mode: Operating Shutdown Issue 01 (2021-04-05) The SUN2000 continuously performs status check and enters the Operating mode once the operating requirements are met.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 3 SUN2000 Storage 3 SUN2000 Storage The following requirements should be met if the SUN2000 is not put into use directly: Do not unpack the SUN2000. Keep the storage temperature at –40°C to +70°C and the humidity at 5%–95% RH. Store the SUN2000 in a clean and dry place and protect it from dust and water vapor corrosion. A maximum of six SUN2000s can be stacked.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 4 Removing the Original SUN2000 Removing the Original SUN2000 Before removing the original SUN2000, ensure that the DC switch on the SUN2000 and all the switches connected to the SUN2000 are set to OFF. Otherwise, the high voltage of the SUN2000 may result in electric shocks. After the SUN2000 is powered off, the remaining electricity and heat may still cause electric shocks and body burns.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-2 Removing the AC output cable Step 4 Remove the DC connectors. Figure 4-3 Removing DC connectors Step 5 Remove the RS485 communications cable. Figure 4-4 Removing the RS485 communications cable Step 6 Remove the PE cable. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-5 Removing the PE cable Step 7 (Optional) Open the anti-theft lock. Figure 4-6 Opening the anti-theft lock Step 8 Remove the two hexagonal screws. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-7 Removing screws Step 9 Remove the SUN2000 from the back panel. Figure 4-8 Removing the SUN2000 Step 10 Remove the nuts, spring washers, and flat washers, and then remove the back panel. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-9 Removing the back panel ----End 4.2 Removing the SUN2000 V200R001 Step 1 Power off the SUN2000 to be replaced. Step 2 Open the maintenance compartment door. Figure 4-10 Opening the maintenance compartment door Step 3 Install the support bar and remove the AC terminal cover. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-11 Removing the AC terminal cover Step 4 Remove the AC power cable. The SUN2000-40KTL is used as an example. Figure 4-12 Removing the AC power cable If the AC terminal of the original inverter is a 3-pin terminal, use an M8 torque wrench to remove the terminal.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-13 Removing DC power cables Step 6 Remove the signal cables. Figure 4-14 RJ45 network port Figure 4-15 Terminal block Step 7 Remove the PE cable. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-16 Removing the PE cable Step 8 (Optional) Open the anti-theft lock. Figure 4-17 Opening the anti-theft lock Step 9 Remove the two hexagonal screws. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-18 Removing screws Step 10 Remove the SUN2000 from the back panel. Figure 4-19 Removing the SUN2000 Step 11 Remove the nuts, spring washers, and flat washers, and then remove the back panel. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-20 Removing the back panel ----End 4.3 Removing the SUN2000 V200R002 Step 1 Power off the SUN2000 to be replaced. Step 2 Remove the two security Torx screws from the maintenance compartment door using a security Torx wrench, and open the maintenance compartment door. Figure 4-21 Opening the maintenance compartment door Step 3 Remove the AC terminal cover.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-22 Removing the AC terminal cover Step 4 Remove the AC output power cable (using a five-core cable for the SUN2000-29.9KTL/33KTL-A/36KTL as an example). Figure 4-23 Removing the AC power cable Step 5 Remove the DC connectors. Figure 4-24 Removing DC power cables Step 6 Remove the signal cables. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-25 Connecting cables to the terminal block Figure 4-26 Connecting cables to the RJ45 network port Step 7 (Optional) Remove the FE communications cable. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-27 Removing the FE communications cable Step 8 Remove the PE cable and remove the crimped OT terminal. Set the cable aside for future use. Figure 4-28 Removing the PE cable Step 9 Remove the two security Torx screws. Figure 4-29 Removing security Torx screws Step 10 Remove the SUN2000 from the mounting bracket. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 4 Removing the Original SUN2000 Figure 4-30 Removing the SUN2000 Step 11 Remove the mounting bracket. Figure 4-31 Removing the mounting bracket ----End Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation 5 Installation 5.1 Checking Before Installation Outer Packing Materials Before unpacking the inverter, check the outer packing materials for damage, such as holes and cracks, and check the inverter model. If any damage is found or the inverter model is not what you requested, do not unpack the package and contact your supplier as soon as possible.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Type 5 Installation Tools and Instruments Diagonal pliers Wire stripper Torque screwdriver Rubber mallet Utility knife Cable cutter Crimping tool (model: PV-CZM-22100) Open-end wrench (model: PV-MS-HZ or PV-MS open-end wrench) Cable tie Vacuum cleaner Multimeter (DC voltage measurement range ≥ 1100 V DC) Marker Steel measuring tape Level Hydraulic pliers - Heat shrink tubing Issue 01 (2021-04-05) Hea
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual Type Tools and Instruments Person al protecti ve equipm ent (PPE) Safety gloves 5 Installation Safety goggles Anti-dust mask - - Safety boots 5.3 Selecting an Installation Position Basic Requirements The SUN2000 is IP66-rated and can be installed indoors or outdoors.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation In residential areas, do not install the SUN2000 on drywalls or walls made of similar materials which have a weak sound insulation performance because the noise generated by the SUN2000 is noticeable. Installation Angle Requirements The SUN2000 can be wall-mounted or support-mounted.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-2 Installation space When installing multiple SUN2000s, install them in horizontal mode if ample space is available and install them in triangle mode if no ample space is available. Stacked installation is not recommended. Figure 5-3 Horizontal installation (recommended) Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-4 Two-layer triangle installation (recommended) Figure 5-5 Three-layer triangle installation (not recommended) Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-6 Stacked installation (not recommended) Figure 5-7 Back-to-back installation (not recommended) The installation diagrams are for reference only and are irrelevant to the SUN2000 cascading scenario. 5.4 Moving the SUN2000 Procedure Step 1 Lift the SUN2000 from the packing case and move it to the specified installation position. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Move the SUN2000 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 SUN2000. Place a foam pad or cardboard under the SUN2000 to protect the SUN2000 enclosure from damage. Figure 5-8 Moving the SUN2000 ----End 5.5 Installing the SUN2000 5.5.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-10 Mounting bracket dimensions The mounting bracket has six groups of mounting holes, which are used to adjust the installation height of the SUN2000. In the SUN2000 V100R001 replacement scenario, it is recommended that the mounting bracket be secured at hole 2. If it is difficult to connect cables at this height, select holes based on the original cable length.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation The mounting holes of the engineering mounting kits must be identical to the original one. The mounting holes can be directly aligned with those on the support. However, if you install the mounting bracket on a wall, you need to make new holes.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-14 Installing the mounting brackets Step 2 Install the SUN2000 onto the mounting bracket. Figure 5-15 Installing the SUN2000 Step 3 Tighten the screws on both sides of the SUN2000. Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-16 Tightening screws on the SUN2000 ----End 5.5.2 SUN2000 V200R002 Replacement Scenario Installation Precautions Before installing the mounting bracket, remove the security Torx wrench and set it aside. Figure 5-17 Position for binding the security Torx wrench (1) Security Torx wrench Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-18 Mounting bracket dimensions The height of the guide rail on the back of the AC adapter box is adjustable. Ensure that the six screws are all securely installed. Figure 5-19 Adjusting the height of the AC adapter box Procedure Step 1 (Optional) Install the locking screw for the DC switch.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-20 Installing the locking screw for the DC switch Step 2 Align the mounting holes and install the mounting bracket. Figure 5-21 Installing the mounting bracket When installing the mounting bracket, select mounting holes based on the original cable length to adjust the mounting bracket height. The AC power cable length requirements should be preferentially met.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation Figure 5-22 Installing the SUN2000 Step 4 Tighten the security Torx screws on both sides of the SUN2000. Figure 5-23 Securing the SUN2000 Step 5 (Optional) Install the AC adapter box on the mounting bracket.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 5 Installation When installing the AC adapter box, align the mounting holes on the left to locate the mounting position. Step 6 Tighten the two screws on the left of the AC adapter box. Figure 5-25 Securing the AC adapter box ----End Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 6 Electrical Connections Electrical Connections 6.1 Precautions When exposed to sunlight, the PV arrays supply DC voltage to the SUN2000. Before connecting cables, ensure that the two DC switches on the SUN2000 are OFF. Otherwise, the high voltage of the SUN2000 may result in electric shocks. The equipment damage caused by incorrect cable connections is beyond the warranty scope.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur. Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur. The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute for the PE point on the enclosure.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Do not connect loads between the SUN2000 and the AC switch. Use a socket wrench and extension rod to connect the AC power cable. The extension rod must be longer than 100 mm. Do not install third-party devices in the AC connection box. Procedure Step 1 Remove the AC terminal box and install partition boards.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Figure 6-3 Routing the AC power cable OT terminals are shipped with the SUN2000 package. The delivered OT terminals apply only to cables of 8 mm2/10.0 mm2 (7 AWG/8 AWG). For other types of cables, you need to prepare OT terminals. In the SUN2000 V100R001 replacement scenario, you need to crimp OT terminals.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Figure 6-5 Connecting the AC power cable ----End 6.2.3 Installing DC Input Power Cables Precautions Before connecting the DC input power cables, ensure that the DC voltage is within the safe range (lower than 60 V DC) and that the DC switch on the SUN2000 is OFF. Failing to do so may result in electric shocks.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections PV modules connected in series in each PV string are of the same specifications. The DC input voltage of the SUN2000 shall not exceed 1100 V DC under any circumstance. The polarities of electric connections are correct on the DC input side.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Before connecting DC input power cables, ensure that the original DC terminals have been cut off. If the original DC connector is directly connected to the SUN2000-(15KTL-50KTL)-M3 series, the inverter may be burnt. You are advised to use the PV-CZM-22100 (Staubli) crimping tool and do not use it with the positioning block. Otherwise, the metal terminals may be damaged.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Figure 6-8 Connecting DC power cables If the original DC input power cables are not long enough, use the DC input extension cables delivered with the package. Figure 6-9 Connecting the DC input extension cable ----End 6.2.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Before Replacement-RJ45 Network Port Before Replacement-Termin al Block SUN2000-(15KTL-50 KTL)-M3 Series (COM Port) No. Color Function No. Function No.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Figure 6-11 Terminal block Figure 6-12 Signal cable definitions of the terminal block Figure 6-13 COM port Scenario Where No Signal Cable Is Connected Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections If no signal cable is connected to the SUN2000, use a waterproof plug to block the cable hole of the signal cable connector and connect the signal cable connector to the communications port on the SUN2000 to improve the waterproof performance. Figure 6-14 Connecting the signal cable connector 6.2.4.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections MBUS Communication The MBUS is a communication mode in which communication signals are loaded to power cables through the communications board for transmission. The built-in MBUS module in the SUN2000 does not need to be connected to cables. The spare parts of SUN2000 V100R001 do not support MBUS communication. 6.2.4.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Figure 6-17 Connecting the cable Step 3 Connect the signal cable connector to the COM port. Figure 6-18 Securing the signal cable connector ----End 6.3 SUN2000 V200R002 Replacement Scenario 6.3.1 Connecting the PE Cable Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur. Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur. The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute for the PE point on the enclosure.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual (4) OT terminal 6 Electrical Connections (5) Crimping tool (6) Heat gun Step 2 Install the PE cable. Figure 6-20 Installing the PE cable (1) Standby protection ground point Step 3 (Optional) If an AC adapter box is installed, connect the PE cable to the AC adapter box. Figure 6-21 Connecting the PE cable to the AC adapter box ----End Issue 01 (2021-04-05) Copyright © Huawei Technologies Co., Ltd.
Replacing SUN2000-(15KTL-50KTL) Series with SUN2000-(15KTL-50KTL)-M3 Series User Manual 6 Electrical Connections 6.3.2 Connecting the Signal Cables COM Port Pin Definitions Ensure that the protection layers of the cables are inside the connector, that excess core wires are cut off from the protection layer, that the exposed core wires are totally inserted into the cable hole, and that the cable is connected securely.
