Senergy 2KTL-S1/G2 Installation And Operation Manual

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Installation and Operation Manual

Applicable model:

1.5K/2K/3K/3.6K/4K/5K/6K

Version:08

Date:2024/05/07

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Page 1 Installation and Operation Manual Applicable model: 1.5K/2K/3K/3.6K/4K/5K/6K Version:08 Date:2024/05/07...
Page 2: Table Of Contents
User Manual Contents Contents Forward ------------------------------------------------------------------------------------ Application Model ----------------------------------------------------------------------------------------------- 1 Applicable Personnel ------------------------------------------------------------------------------------------- 1 Symbol Conventions ------------------------------------------------------------------------------------------- 2 1 Safety Precautions ------------------------------------------------------------------ 1.1 Personnel Safety ------------------------------------------------------------------------------------------- 3 1.2 PV Inverter Protection ------------------------------------------------------------------------------------ 3 1.3 Installation Safety ------------------------------------------------------------------------------------------ 3 1.4 Electrical Connections ------------------------------------------------------------------------------------ 4 1.5 Operating and Commissioning -------------------------------------------------------------------------- 4 1.6 Maintenance ------------------------------------------------------------------------------------------------- 4 1.7 Additional Information ------------------------------------------------------------------------------------- 5...
Page 3 User Manual Contents 5.6 Installation Verification ---------------------------------------------------------------------------------- 35 6 System Operation ------------------------------------------------------------------- 6.1 Powering ON the Inverter ------------------------------------------------------------------------------ 36 6.2 Powering OFF the Inverter ---------------------------------------------------------------------------- 36 7 User Interface ------------------------------------------------------------------------ 7.1 HMI specification definition ---------------------------------------------------------------------------- 38 7.2 LCD automatic-page-turning display ---------------------------------------------------------------- 39 8 Maintenance -------------------------------------------------------------------------- 8.1 Routine Maintenance ------------------------------------------------------------------------------------ 40 8.2 Inverter Troubleshooting ------------------------------------------------------------------------------- 41...
Page 4: Forward
Forward User Manual Forward Dear User, Thank you so much for your choosing 1.5K-6K, the latest generation of grid-tied PV Strings inverter (hereinafter referred to as the inverter) designed and developed by the company. This user manual introduces the inverter in terms of its installation, electrical connections, operation, commissioning, maintenance, and troubleshooting.
Page 5: Symbol Conventions
Forward User Manual Symbol Conventions Safety symbols used in this manual, which highlight potential hazards and important safety information, are listed as follows: Symbol Description Indicates an imminently hazardous situation which, if not correctly DANGER followed, will result in serious injury or death. Indicates a potentially hazardous situation which, if not correctly WARNING followed, could result in serious injury or death.
Page 6: Safety Precautions
Safety Precautions User Manual 1 Safety Precautions Before using the product, please read the following safety precautions carefully. 1.1 Personnel Safety a. The PV inverter must be installed, electronically connected, operated and maintained through specially trained technician; b. The qualified technicians must be familiar with the safety regulations of electrical system, working process of PV power generation system, and standards of local power grid;...
Page 7: Electrical Connections
Safety Precautions User Manual 1.4 Electrical Connections Before installing the inverter, check all electrical ports to ensure no damage and no short circuit. Otherwise personal casualty and/or fire DANGER will occur. a. Input terminals of the PV inverter apply only to input terminals of PV String; do not connect any other DC sources to the input terminals.
Page 8: Additional Information
Safety Precautions User Manual a. For personal safety, wear appropriate personal protective equipment (such as insulated gloves and protective shoes) for the inverter maintenance. b. Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site. c.
Page 9: Overview Of The Inverter
Overview of the Inverter User Manual 2 Overview of the Inverter This chapter introduces the inverter and describes its functional models, network application, appearance, dimensions, and working process etc. 2.1 Functional Models 2.1.1 Function This series is a single-phase grid-tied PV string inverter (transformeless) that converts the DC power generated by PV strings into AC power and feeds the power into power grid.
Page 10: Outline And Dimensions
Overview of the Inverter User Manual PV strings inverter AC Distribution Unit low-voltage power grid Figure 2.2 a low-voltage grid-tied PV power system 2.3 Outline and Dimensions 2.3.1 Outline Figures 2.3 to 2.7 show the outline of the inverters as follows: 137mm 320mm 344mm...
Page 11 Overview of the Inverter User Manual LCD(optional) Figure 2.5 The front view and amplification effect of LED indicator area 4K-6K PV Inverter with Dual MPPT Input 1.5K-3.6K PV Inverter with Single MPPT Input Figure 2.6 The rear view of this series of inverter 1.
Page 12: Working Process
Overview of the Inverter User Manual 2.4 Working Process 2.4.1 Basic principle Description The 4K-6K PV Inverter with Dual MPPT Input receives inputs from two strings of PV panel, shown as Figure 2.9; the 1.5K-3.6K PV Inverter with Single MPPT Input receives inputs from only one string of PV panel, shown as Figure 2.8.
Page 13: Working Modes
Overview of the Inverter User Manual 2.5 Working Modes Three working modes of the inverter are shown as follows: standby, operating, and shutdown. Table 2.1 shows the conditions for the inverter to switch between working modes. Modes Description The PV inverter enters the standby mode when >the input voltage of PV Strings can enable auxiliary power supply to run, but cannot meet the inverter operation requirements.
Page 14: Storage
User Manual Storage 3 Storage This chapter describes the storage requirements for the inverter. The following storage instructions should be applied if the PV inverter is not put into use immediately: > Do not unpack the inverter (put desiccant in the original box if the PV inverter is unpacked). >...
Page 15: Installation
U er Manual Installation 4 Installation Do not install the inverter on flammable building materials or in an DANGER area where flammable or explosive materials are stored. Do not install the inverter in a place where personnel are likely to come into contact with its enclosure and heat sinks to avoid electric CAUTION shock/burn.
Page 16: Moving The Inverter
Installation User Manual If any damage mentioned above is found, contact the dealer NOTICE immediately. PV modules for non-isolated inverters. Non-isolated inverters shall NOTICE be provided with installation instructions that require PV modules that have an IEC 61730 Class A rating. If the maximum AC mains operating voltage is higher than the PV array maximum system voltage then the instructions shall require PV modules that have a maximum system voltage rating based upon the AC mains voltage.
Page 17: Installation Requirements
Installation User Manual 4.3.2 Compliance and Safety Symbols Safety symbol Description Electrical shock! There are residual voltages in the PV inverter. It needs 5 minutes 5mins to finish discharge. The PV inverter must not be touched when in operation. Its enclosure and heat sinks are extremely hot.
Page 18 Installation User Manual The inverter must be installed in a well-ventilated environment for good heat dissipation. The inverter must be free from direct exposure to sunlight, rain, and snow to extend its service life. It is recommended to install the inverter in a sheltered place. If no shelter is available, install an awning over it, as shown in Figure 4.3.
Page 19 Installation User Manual >500 >150 >150 >500 >600 the front view the lateral view Figure 4.4 Installation Space Requirements (unit: mm) When installing multiple inverters, install them in horizontal mode (as shown in Figure 4.5) if sufficient space is available; install them in triangle mode (as shown in Figure 4.6) or in stacked mode (as shown in Figure 4.7) if no sufficient space is available.
Page 20 Installation User Manual Figure 4.6 Installation in triangle mode (unit: mm) 1000 Figure 4.7 Installation in stacked mode (unit: mm) The clearance between multiple inverters must be increased for NOTICE proper heat dissipation when they are installed in a hot area.
Page 21 Installation User Manual 4.4.2 Installation Mode Requirements Install the inverter upright or at a maximum back tilt of 15 degrees to facilitate heat dissipation. Some correct / wrong installation modes are shown in Figures 4.8&4.9 below. The correct installation mode upright Lean back Figures 4.8 The correct installation mode...
Page 22: Installing A Rear Panel
Installation User Manual 4.5 Installing a Rear Panel Before installing the inverter, secure the rear panel to a wall. Step 1 Move out the rear panel from the packing case. Step 2 Determine the positions of rear panel to drill holes (as shown in Figure 4.10); For 4K~6K inverter, please choose one of the two hole groups (①&④...
Page 23 Installation User Manual a. Drill a hole in a marked position to a depth of 60 mm using a hammer drill with a Ф10mm b. Partially tighten an expansion bolt, vertically insert it into the hole, and knock the expansion bolt completely into the hole using a rubber mallet.
Page 24: Installing The Inverter
Installation User Manual 4.6 Installing the inverter Follow below procedures: Step 1 Hold the handles at both sides of the inverter and then lift and stand the inverter. Step 2 Mount the inverter on the rear panel and keep them aligned with each other, as shown in Figure 4.14.
Page 25: Electrical Connections
Electrical Connections User Manual 5 Electrical Connections Before performing any electrical connections, ensure that both DC and AC Switches are OFF. Otherwise, fatal injury can occur due to DANGER the high voltage caused from AC and DC cables. 5.1 Connecting Protection Ground (PGND) Cables 5.1.1 Preparation The ground cable and OT terminals have been prepared.
Page 26 Electrical Connections User Manual 5.1.2 Wiring Procedures Step 1 Remove an appropriate length of the insulation layer from the PGND cable using a wire Stripper; the length is a little bit longer than that of OT terminal’s crimping end by 2mm~3mm, as shown in Figure 5.1.
Page 27: Connecting Ac Output Cables
Electrical Connections User Manual Step 4 Secure the PGND cable (done by step 1 & 2) using the ground screw and tighten the screw using a socket wrench (torque 1.2 N· m),as shown in Figure 5.4. Figure 5.4 Secure the PGND cable 5.2 Connecting AC Output Cables 5.2.1 Preparation The AC power cable and AC terminals have been prepared.
Page 28 Electrical Connections User Manual An independent circuit breaker must be installed on the AC side of each inverter to ensure that the inverter can be safely disconnected from the WARNING power grid. Do not connect loads between the AC output terminals of the inverter WARNING and circuit breaker.
Page 29 Electrical Connections User Manual Ground, neutral, and line wires must correspond to G, N, and L terminals NOTICE of AC connectors respectively. Otherwise, the faulty connection will lead to the inverter performance failure. Step 5 After the AC terminal is connected, install as shown below.
Page 30: Connecting The Pv Strings
Electrical Connections User Manual 5.3 Connecting the PV Strings PV Strings connection requires the following prerequisites; DANGER otherwise, an electric shock can occur. PV modules generate electric energy when exposed to sunlight and can create an electrical shock hazard. Therefore, when connecting the PV modules, shield them with opaque cloth. Before connecting DC input power cables, ensure that the voltage on the DC side is within the safe range and that the DC SWITCH on the inverter is OFF.
Page 31 Electrical Connections User Manual PV Strings DC input cable and connectors have been prepared; Table 5.2 lists the recommended outdoor copper-core DC input cable speciﬁcations. ) Cable Outer Diameter(mm) Cross-sectional Area(mm Inverter model Cable Type Range Range Recommended Value Common PV cables 1.5K-3.6K in the industry （model: PV1-F）...
Page 32 Electrical Connections User Manual Procedures of connecting the PV Strings Step 1 Remove an appropriate length of the insulation layer from the positive and negative power cables using a wire stripper, as shown in below Figure. Positive metal connector Negative metal connector Figure 5.10 Removing insulation layer for DC cable (unit: mm) Step 2 Insert the exposed areas of the positive and negative power cables into the metal terminals of the positive and negative connectors respectively and crimp them using a crimping...
Page 33 Electrical Connections User Manual Step 4 Tighten the locking nuts on the positive and negative connectors using a removal wrench, as shown in Figure 5.13. Figure 5.13 Locking connectors Step 5 Measure the voltage of every route Strings using a multimeter. Ensure that the polarities of the DC input power cables are correct, as shown in Figure 5.14.
Page 34: Connecting Communication Cables
Electrical Connections User Manual 5.4 Connecting Communication Cables 5.4.1 Communication Mode Description You can use the following communication modes to implement communication: Bluetooth, WIFI, GPRS and RS485 all of which are described as follows. Bluetooth Module You can turn on the Bluetooth function of the mobile phone, and set parameters and monitor data of the inverter through the mobile APP.
Page 35: Power Limit (Optional)
Electrical Connections User Manual 5.5 Power limit (optional) 5.5.1 Wiring diagram of Inverter+CT Inverter low-voltage power grid Load PV strings Power limit Reserved Reserved Reserved Reserved Figure 5.16 Wiring diagram of Inverter+CT Power Limit Power Limit Disable CT sensor Meter on Grid On Grid 1000:1 1000:1...
Page 36 Electrical Connections User Manual 5.5.2 Wiring diagram of Inverter+Meter Load low-voltage power grid Inverter PV strings Customer Interface Location Description Function RS485 Power limit RS485 supported baud rate: 9600BPS Figure 5.18 Wiring diagram of Inverter+Meter Power limit function Power limit function Power limit mode Power limit mode Power limit CT ratio...
Page 37 Electrical Connections User Manual - Set the “Power limit function” to “Digital Power Meter” - Set the Digital Power Meter Type - Set the meter position base on the meter installed on load or on grid - Set maximum feed-in grid power if needed - Set “Power limit CT ratio”...
Page 38: Installation Verification
Electrical Connections User Manual 5.6 Installation Verification Check the following items after the inverter is installed according to Table 5.5. 1. No other objects are put on the PV inverter. 2. All screws, especially the screws used for electrical connections, are tightened 3.
Page 39: System Operation
System Operation User Manual 6 System Operation 6.1 Powering ON the Inverter Step 1: Switch ON the AC circuit breaker. Step 2: If the inverter has a switch, turn the switch to "ON" state. Step 3: Observe statuses of LED indicator lights on the inverter according to Table 7.1. When LED status lights display the inverter has entered NOTE grid-connecting, it means the inverter is operating well.
Page 40: User Interface
User Interface User Manual 7 User Interface Display screen of inverter is composed of LED indicator (LCD is optional for some models). LED contains three color states, blue, green and red respectively. For more details, refer to Table 7.1 HMI specification definition. LCD(optional) You can view &...
Page 41: Hmi Specification Definition
User Interface User Manual 7.1 HMI specification definition LED Indicator Description Status Blue led Standby blink(slowly) Normal status Green led Limited power operation Red led Refer to the table below Warning Deﬁnition LCD Display Status Grid over voltage A0 Grid OV Red led blink(slowly) Grid under voltage A1 Grid UV...
Page 42: Lcd Automatic-Page-Turning Display
User Interface User Manual 7.2 LCD automatic-page-turning display Note Display content Mode Model name Version PV voltage The LCD display interface of the AC voltage inverter standby state is shown in the following sequence: Today Energy Total Energy Warning The LCD display interface for countdown of inverter grid- Start counter down connected is shown in the right...
Page 43: Maintenance
Maintenance User Manual 8 Maintenance Before maintaining and commissioning inverter and its peripheral distribution unit, switch off all the charged terminals of the inverter WARNING and wait at least 10 minutes after the inverter is powered off. 8.1 Routine Maintenance Maintain Maintenance Check Item...
Page 44: Inverter Troubleshooting
Maintenance User Manual 8.2 Inverter Troubleshooting When the inverter has an exception, its basic common warning and exception handling methods are shown in the table 8.2. Alarm Name Causes Measures Recommended Grid 1. If the alarm occurs accidentally, the power grid may Over Voltage be abnormal accidentally.
Page 45 Maintenance User Manual The insulation resistance against the ground at the 1. If the alarm occurs accidentally, possibly the external input side circuits are abnormal accidentally. The inverter Residual decreases automatically recovers to the normal operating status Current during the inverter after the fault is rectified.
Page 46: Removing The Inverter
Maintenance User Manual If modem or other data logger is used, please reboot remote monitor Communications it; if still does not work after rebooting, contact your displays zero outage dealer. power generation remote monitor Check if DC switch is damaged, and if not, switch it to Output switch displays no output ON.
Page 47: Warranty
Warranty User Manual 9 Warranty 9.1 Quality Terms 1) Unless otherwise agreed to in a contract, warranty period of the inverter is 60 months 2) As for the PV inverter which is defective or damaged within its quality warranty period, our company shall repair or replace it for free.
Page 48: Disposal Of The Inverter
Disposal of the Inverter User Manual 10 Disposal of the Inverter The PV inverter and its packing case are made from environment-friendly materials. If the inverter service life has expired, do NOT discard it with household garbage; dispose the inverter in accordance with local environmental laws and regulations.
Page 49: Technical Specifications
Technical Speciﬁcations User Manual 11 Technical Specifications Model 2KTL-S1/G2 3KTL-S1/G2 3.6KTL-S1/G2 Efficiency Max. Efficiency 97.5% 97.8% 97.8% European Efficiency 96.8% 97.3% 97.3% Input(PV) 150% Max. PV configuration (STC) 500V Max. Input Voltage 360V Rated Input Voltage Max. Input Current Max. Short Circuit Current...
Page 50 Technical Speciﬁcations User Manual Protection DC Switch Support Anti-islanding protection Support AC overcurrent protection Support AC short circuit protection Support DC reverse connection Support Surge Arrester DC Type III (Optional) / AC Type III Insulation detection Support Leakage current protection Support General Topology...
Page 51 Technical Speciﬁcations User Manual Model 4KTL-D1/G2 5KTL-D1/G2 6KTL-D1/G2 Efficiency Max. Efficiency 98.0% 98.2% 98.2% European Efficiency 97.0% 97.4% 97.4% Input (PV) Max. PV configuration (STC) 150% 500V Max.Input Voltage 360V Rated Input Voltage Max.Input Current 26A (2*13A) 30A (2*15A) Max.Short Circuit Current Start Input Voltage 70V-540V MPPT Operating Voltage Range...
Page 52 Technical Speciﬁcations User Manual AC overcurrent protection Support AC short circuit protection Support DC reverse connection Support Surge Arrester DC Type III (Optional) / AC Type III Insulation detection Support Leakage current protection Support General Topology Transformerless IP Rating IP65 Night Self Consumption <1W Cooling...
Page 53 Technical Speciﬁcations User Manual Model 1.5KTL-S1/G2P 2KTL-S1/G2P 3KTL-S1/G2P 3.6KTL-S1/G2P Efficiency Max. Efficiency 97.5% 97.5% 97.8% 97.8% European Efficiency 96.8% 96.8% 97.3% 97.3% Input(PV) Max. PV configuration(STC) 150% 500V Max. Input Voltage 360V Rated Input Voltage Max. Input Current Max. Short Circuit Current Start Input Voltage MPPT Operating Voltage Range 50V-490V...
Page 54 Technical Speciﬁcations User Manual AC overcurrent protection Support AC short circuit protection Support DC reverse connection Support Surge Arrester DC Type III (Optional) / AC Type III Insulation detection Support Leakage current protection Support General Topology Transformerless IP Rating IP65 Night Self Consumption <1W Cooling...
Page 55 Technical Speciﬁcations User Manual Model 4KTL-D1/G2P 5KTL-D1/G2P 6KTL-D1/G2P Efficiency Max. Efficiency 98.0% 98.2% 98.2% European Efficiency 97.0% 97.4% 97.4% Input(PV) Max. PV configuration (STC) 150% Max. Input Voltage 500V Rated Input Voltage 360V Max. Input Current 30A (2*15A) Max. Short Circuit Current 40A (2*20A) Start Input Voltage MPPT Operating Voltage Range...
Page 56 Technical Speciﬁcations User Manual AC short circuit protection Support DC reverse connection Support Surge Arrester DC Type III (Optional) / AC Type III Insulation detection Support Leakage current protection Support General Topology Transformerless IP Rating IP65 Night Self Consumption <1W Cooling Natural cooling -25℃~+60℃...

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Senergy 2KTL-S1/G2 Installation And Operation Manual

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