Viridian CSI1500S User Manual
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Viridian CSI1500S User Manual

Grid-tied pv inverter
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User Manual
Grid-Tied PV Inverter
(CSI1000S|
CSI1500S
| CSI2000S|
CSI2500S|
CSI3000S)
V1.1-2024-05-25

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Summary of Contents for Viridian CSI1500S

  • Page 1 User Manual Grid-Tied PV Inverter (CSI1000S| CSI1500S | CSI2000S| CSI2500S| CSI3000S) V1.1-2024-05-25...
  • Page 2 Trademarks and other trademarks are trademarks of Viridian Solar Ltd . All other trademarks or registered trademarks mentioned in this manual are owned by Viridian Solar Ltd NOTICE The information in this user manual is subject to change due to product updates or other reasons.

  • Page 3: Table Of Contents

    CONTENT 1 About This Manual ..............1 1.1 Applicable Model ..................1 1.2 Target Audience ...................1 1.3 Symbol Definition ..................2 2 Safety Precaution ..............3 2.1 General Safety .....................3 2.2 DC Side......................3 2.3 AC Side ......................4 2.4 Inverter ......................4 2.5 Personnel Requirements ................5 2.6 EU Declaration of Conformity ..............5 3 Product Introduction .............6 3.1 Application Scenarios .................6...
  • Page 4 6 Electrical Connection ............21 6.1 Safety Precaution ..................21 6.2 Connecting the PE cable ................21 6.3 Connecting the DC Input Cable ...............22 6.4 Connecting the AC Output Cable ............24 6.5 Communication ..................28 6.5.1 Connecting the Communication Cable (optional) ..........30 6.5.2 DRM Mode Description ..................31 6.5.3 Installing the Communication Module (optional) ..........33 7 Equipment Commissioning ..........34 7.1 Check Before Power ON ................34...

  • Page 5: About This Manual

    1.1 Applicable Model This manual applies to the listed inverters below: Model Nominal Output Power Nominal Output Voltage CSI1000S CSI1500S 1.5kW CSI2000S 220/230/240V CSI2500S 2.5kW CSI3000S 1.2 Target Audience This manual applies to trained and knowledgeable technical professionals only. The technical...

  • Page 6: Symbol Definition

    1.3 Symbol Definition Different levels of warning messages in this manual are defined as follows: DANGER Indicates a high-level hazard that, if not avoided, will result in death or serious injury. WARNING Indicates a medium-level hazard that, if not avoided, could result in death or serious injury. CAUTION Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.

  • Page 7: Safety Precaution

    2 Safety Precaution Please strictly follow these safety instructions in the user manual during the operation. NOTICE The inverters are designed and tested to strictly comply with related safety rules. Read and follow all the safety instructions and cautions before any operations. Improper operation might cause personal injury or property damage as the inverters are electrical equipment.

  • Page 8: Ac Side

    2.3 AC Side WARNING • The voltage and frequency at the connecting point should meet the on-grid requirements. • Additional protective devices like circuit breakers or fuses are recommended on the AC side. The specification of the protective device must be greater than 1.25 times the maximum output current of the inverter.

  • Page 9: Personnel Requirements

    2.6 EU Declaration of Conformity Viridian Solar Ltd. hereby declares that the equipment with wireless communication modules sold in the European market meets the requirements of the following directives: • Radio Equipment Directive 2014/53/EU (RED) •...

  • Page 10: Product Introduction

    3 Product Introduction 3.1 Application Scenarios The inverter is a single-phase series photovoltaic grid-tied inverter. The inverter can convert the direct current generated by photovoltaic solar panels into alternating current that meets the requirements of the power grid and feed it into the power grid. The main application scenarios of the inverter are as follows: Circuit PV String...

  • Page 11: Supported Grid Types

    3.3 Supported Grid Types For the grid type with neutral wire, the voltage between the neutral wire and the ground must be less than 10V. Inverter Inverter Inverter Inverter 3.4 Features Power derating For a safe operation, the inverter will automatically reduce the output power when the operating environment is not ideal.
  • Page 12 Load Control The inverter reserves a dry contact control port to support the connection of SG Ready certified heat pumps and controllable loads, which is used to turn on or off the loads. The load control methods are as follows: •...
  • Page 13 Communication The inverter supports setting parameters through WiFi or Bluetooth in a short distance. Support connecting monitoring platforms through WiFi or LAN to monitor the operation status of inverters, power station operations, etc. • Bluetooth: Meets Bluetooth 5.1 standard. • WiFi: Supports the 2.4G frequency band, the router needs to be set to 2.4G or 2.4G/5G coexistence mode.

  • Page 14: Inverter Operation Mode

    3.5 Inverter Operation Mode Waiting mode Fault mode Upgrade mode Grid-Tied mode Self-check mode Parts Description Waiting stage after the inverter is powered on. Waiting • When the conditions are met, it enters the self-check mode. mode • If there is a fault, it enters the fault mode. •...

  • Page 15: Appearance

    3.6 Appearance 3.6.1 Parts Parts Description Only supported for Australian models. When the inverter is powered off for operation, please lock the DC Switch lock DC switch to OFF state to prevent danger such as electric shock. DC Switch Starts or stops DC input. DC input terminal It is used for connecting PV module DC input cable.

  • Page 16: Indicator Description

    Parts Description Used for connecting the AC output cable to connect AC output terminal the inverter to the power grid. PE terminal Used for connecting the grounding cable. Indicator Indicates the working status of the inverter. Display screen (optional) View inverter information (optional). Key (optional) Used for operating the display screen (optional).

  • Page 17: Nameplate

    AC,r: **** Output AC,max: Aa.c. max: **** P.F. ~1,0.8cap...0.8ind operating - ~ ℃ : ** ** Non-isolated, IP , Protective Class I, OVC DCII/ACIII Safety symbols and certification marks Contact information and serial number Viridian Solar Ltd E-mail: info@viridiansolar.co.uk www.viridiansolar.co.uk...

  • Page 18: Check And Storage

    4 Check and Storage 4.1 Check Before Receiving Check the following items before receiving the product. 1. Check the outer packing box for damage, such as holes, cracks, deformation, and other signs of equipment damage. Do not unpack the package and contact the supplier as soon as possible if any damage is found.

  • Page 19: Storage

    4.3 Storage If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements: 1. Do not unpack the outer package or throw the desiccant away. 2. Store the equipment in a clean place. Make sure the temperature and humidity are appropriate and no condensation.

  • Page 20: Installation

    5 Installation 5.1 Installation Requirements Installation Environment Requirements 1. Do not install the equipment in a place near flammable, explosive, or corrosive materials. 2. Install the equipment on a surface that is solid enough to bear the inverter weight. 3. The place to install the equipment shall be well-ventilated for heat dissipation and large enough for operations.
  • Page 21 Children No Touch ALT:4000m Mounting Support Requirements • The mounting support shall be of fire retardant material. • Please ensure that the installation surface is sturdy and that the carrier meets the load- bearing requirements of the equipment. • Do not install the product on the support with poor sound insulation to avoid the noise bothering people nearby.
  • Page 22 Installation Angle Requirements • Install the inverter vertically or at a maximum back tilt of 15 degrees. • Do not install the inverter upside down, forward tilt, back forward tilt, or horizontally. Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary.

  • Page 23: Inverter Installation

    5.2 Inverter Installation 5.2.1 Moving the Inverter CAUTION • Operations such as transportation, shipment, installation and so on shall in compliance with the laws and regulations of the country or region where the inverter is located. • Move the inverter to the site before installation. Follow the instructions below to avoid personal injury or equipment damage.
  • Page 24 Step 1: Put the plate on the wall or bracket horizontally and mark positions for drilling holes. Step 2: Use an impact drill with a drill bit diameter of 8mm to drill holes, ensuring a depth of approximately 60mm. Step 3: Use the expansion bolts to fix the plate on the wall or bracket. Step 4: (Australia only) Install DC switch lock.

  • Page 25: Electrical Connection

    6 Electrical Connection 6.1 Safety Precaution DANGER • Disconnect the DC switch and the AC output switch of the inverter to power off the inverter before any electrical connections. Do not work with power on. Otherwise, an electric shock may occur. •...

  • Page 26: Connecting The Dc Input Cable

    6.3 Connecting the DC Input Cable DANGER Confirm the following information before connecting the PV string to the inverter. Otherwise, the inverter may be damaged permanently or even cause fire and cause personal and property losses. 1. Make sure that the max short circuit current and the max input voltage per MPPT are within the permissible range.
  • Page 27 NOTICE If the DC input terminal of the inverter does not need to be connected to the PV string, use a waterproof cover to block the terminal, otherwise it will affect the equipment's protection level. Operation steps for connecting the DC input cables. Step 1: Prepare the DC cable.

  • Page 28: Connecting The Ac Output Cable

    Vaconn DC connector 6.4 Connecting the AC Output Cable WARNING • Do not connect loads between the inverter and the AC switch directly connected to the inverter. • The residual current monitoring unit (RCMU) is integrated into the inverter. When the inverter detects a leakage current exceeds the allowable value, it will disconnect from the grid quickly.
  • Page 29 Select an appropriate AC circuit breaker in compliance with local laws and regulations. The following switches are for reference: Inverter Model AC Switch Specification CSI1000S CSI1500S CSI2000S CSI2500S CSI3000S The inverter needs to be externally connected with Type A RCD (residual current device) for protection when the DC component of the leakage current exceeds the limit value.
  • Page 30 Step 1: Make an AC output cable. Step 2: Disassemble the AC terminal. Step 3: Connect the AC output cable to the AC terminal. Step 4: Connect the AC terminal to the inverter. AC-1 AC-2 AC-1 Copper,...
  • Page 31 Disassemble the AC terminal. AC-2 Copper,...

  • Page 32: Communication

    6.5 Communication Power Limit Networking Scheme The power generation of PV power stations is self consumed. When the electrical equipment cannot consume all the electricity, and the electricity needs to be fed into the grid. The power generation of the power station can be monitored and controlled through smart meters, data collectors, or smart energy controllers SEC1000 to control the power generation fed into the grid.
  • Page 33 Single phase networking scenario (HK1000) HK1000 Inverter Circuit breaker Meter Utility grid Circuit breaker PV String Loads All-phases networking scenario (GM3000/HK3000/GMK330) Inverter Circuit breaker Meter Utility grid PV String Circuit breaker Loads NOTICE After the wiring is completed, set relevant parameters through the LCD display screen or WE Mate App to complete the function of power limit or output power limitation.

  • Page 34: Connecting The Communication Cable (Optional)

    6.5.1 Connecting the Communication Cable (optional) NOTICE The remote shutdown and DRED/RCR functions are disabled by default. Enable it via WE Mate App if needed Communication Port Definition Description type By using CT to achieve power limit function, 1: CT+ if you need supporting equipment, you 2: CT- can contact the inverter manufacturer to...

  • Page 35: Drm Mode Description

    Inverter 6.5.2 DRM Mode Description DRM Function Wiring Diagram DRM device The inverter supports DRMO and DRM5-8 modes. The requirements for each mode are as follows: Mode Inverter Requirement Description port DRM0 COM/ Turn on S0 and the inverter shuts down. DRM0 Turn off S0 and the inverter is back to on-grid.
  • Page 36 The wiring method of communication terminals is as follows: NOTICE • Make sure that the communication device is connected to the right COM port. Route the communication cable far away from any interference source or power cable to prevent the signal from being influenced.
  • Page 37 Dry Contact RS485 Meter DRED or RCR Remote Shutdown or Emergency Power Off 1: CT+ 2: CT- Dry Contact 9: Relay-OUT+ RS485 10: Relay-OUT- 3: RS485 A1 4: RS485 B1 Meter DRED or RCR 5: RS485 A2 11: COM/DRM0 or REF_1 6: RS485 B2 12: REFGEN or REF_2 13: DRM4/8 or DI_4...

  • Page 38: Installing The Communication Module (Optional)

    6.5.3 Installing the Communication Module (optional) Supports setting inverter parameters through WiFi, WiFi 2.0, WiFi/LAN 2.0, Bluetooth, and 4G communication modules connected to mobile phones or web interfaces, viewing inverter operation and error information, and timely understanding of system status. WiFi Kit, WiFi Kit-20, WiFi/LAN Kit-20, 4G Kit, Bluetooth Kit modules: optional.

  • Page 39: Equipment Commissioning

    7 Equipment Commissioning 7.1 Check Before Power ON Check Item The product is firmly installed at a clean place that is well-ventilated and easy-to operate. The PE, DC input, AC output, and communication cables are connected correctly and securely. If the Remote Shutdown function is enabled on the APP, check if the corresponding port of this function is short circuited.

  • Page 40: System Commissioning

    8 System Commissioning 8.1 Indicators and Buttons Equipment with display screen Classification Status Description Yellow light steady ON: Wireless monitoring is normal. One blink: Wireless module reset. Two blinks: It is not connected to router/base station. Four blinks: It is not connected to monitoring website. Power It is not connected to monitoring server.
  • Page 41 Display Button Description • In all levels of menus, if the time without operation exceeds a certain value, the LCD display screen will darken and the interface display will automatically jump to the initial interface. • Short press of the operation button: Switch menu interface and adjust parameter values. •...

  • Page 42: Introduction To The Menu

    8.2.1 Introduction to the Menu This section introduces the menu structure of the display screen, which facilitates users to access all levels of menus, view inverter information, and set parameters. Long press Short press Short press for 2S Short press Short press Short press Short press...

  • Page 43: Introduction To Inverter Parameters

    8.2.2 Introduction to Inverter Parameters Parameters Description Normal Home page. Indicates the real-time power of the inverter. ****-**-** Check the time of the country/region. **:**:** Check the DC input voltage of the inverter. Check the DC input current of the inverter. Check the voltage of the utility grid.

  • Page 44: Local Upgrade Of Inverter Software Version

    Parameters Description PvShadowMPPT Enable the shadow scan function if the PV panels are shadowed. PvTimeInterval Set the scan time according to the actual needs. SetSunspec Set the Sunspec based on the actual communication method. ARC Enable ARC is optional and off by default. Enable or disable ARC accordingly. ARC SelfCheck Check whether ARC can work normally.

  • Page 45: Setting Inverter Parameters Via We Mate App

    8.4 Setting Inverter Parameters via WE Mate App WE Mate App is a smart phone application used to communicate with the inverter via bluetooth, WiFi, 4G or GPRS modules. Commonly used functions are as follows: 1. Check the operating data, software version, alarms, etc. 2.

  • Page 46: Maintenance

    9 Maintenance 9.1 Power OFF the Inverter DANGER • Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. • Delayed discharge. Wait until the components are discharged after power off. Step 1: (Optional) Send a shutdown command to the inverter through WE Mate.

  • Page 47: Troubleshooting

    9.4 Troubleshooting Perform troubleshooting according to the following methods. Contact the after-sales service if these methods do not work. Collect the information below before contacting the after-sales service, so that the problems can be solved quickly. 1. Inverter information like serial number, software version, installation date, fault time, fault frequency, etc.
  • Page 48 Fault Cause Solutions 1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. 2. Check if the power grid voltage has been operating at a high voltage for a long time.
  • Page 49 Fault Cause Solutions 1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. 2. Check if the power grid voltage has been operating at a high voltage for The moving average of a long time.
  • Page 50 Fault Cause Solutions 1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. 2. If the problem occurs frequently, check whether the grid frequency is within the permissible range.
  • Page 51 Fault Cause Solutions Utility grid exception. The 1. If the problem occurs occasionally, LVRT duration of the utility grid the utility grid may be abnormal Undervoltage exception exceeds the set temporarily. The inverter will recover time of LVRT. automatically after detecting that the utility grid is normal.
  • Page 52 Fault Cause Solutions 1. Check whether the resistance of the PV string to PE exceeds 50kΩ. If no, check the short circuit point. 2. Check whether the PE cable is connected correctly. 3. If the resistance is lower on rainy days, please reset the ISO.
  • Page 53 Fault Cause Solutions Disconnect the AC output switch and AC HCT Check The sampling of the AC DC input switch, then connect them 5 abnormal HCT is abnormal. minutes later. Contact the dealer or the after-sales service if the problem persists. Disconnect the AC output switch and GFCI HCT The sampling of the GFCI...
  • Page 54 Fault Cause Solutions 1. The inverter is installed 1. Check the ventilation and the ambient in a place with poor temperature at the installation point. ventilation. 2. If the ventilation is poor or the Cavity 2. The ambient ambient temperature is too high, Over- temperature exceeds improve the ventilation and heat...

  • Page 55: Routine Maintenance

    9.5 Routine Maintenance Maintaining Item Maintaining Method Maintaining Period Check the heat sink, air intake, and air System Clean Once 6-12 months outlet for foreign matter or dust. Turn the DC switch on and off ten DC Switch consecutive times to make sure that it is Once a year working properly.

  • Page 56: Technical Parameters

    10 Technical Parameters Technical Data CSI1000S CSI1500S CSI2000S Input Max. Input Power (W) 2,000 3,000 4,000 Max. Input Voltage (V) MPPT Operating Voltage 40~450 40~450 40~450 Range (V) MPPT Voltage Range at 86~450 130~450 170~450 Nominal Power (V) Start-up Voltage (V) Nominal Input Voltage (V) Max.
  • Page 57 Technical Data CSI1000S CSI1500S CSI2000S Nominal Output Current (A) (at 230V) ~1 (Adjustable from ~1 (Adjustable ~1 (Adjustable from Power Factor 0.8 leading to 0.8 from 0.8 leading 0.8 leading to 0.8 lagging) to 0.8 lagging) lagging) Max. Total Harmonic <3%...
  • Page 58 Technical Data CSI1000S CSI1500S CSI2000S Communication Protocols ModbusRTU (SunSpec Compliant),ModBus TCP (Optional) Weight (kg) Dimension (W×H×D mm) 306*218*119 Noise Emission (dB) <20 Topology Non-isolated Self-consumption at Night (W) <3 Ingress Protection Rating IP66 Anti-corrosion Class DC Connector MC4 (2.5-4mm²) AC Connector...
  • Page 59 Technical Data CSI2500S CSI3000S Input Max. Input Power (W) 5,000 6,000 Max. Input Voltage (V) MPPT Operating Voltage Range (V) 40~550 40~550 MPPT Voltage Range at Nominal Power (V) 213~480 255~480 Start-up Voltage (V) Nominal Input Voltage (V) Max. Input Current per MPPT (A) Max.
  • Page 60 Technical Data CSI2500S CSI3000S Max. Efficiency 97.6% 97.6% European Efficiency 97.0% 97.1% Protection PV String Current Monitoring Integrated PV Insulation Resistance Detection Integrated Residual Current Monitoring Integrated PV Reverse Polarity Protection Integrated Anti-islanding Protection Integrated AC Overcurrent Protection Integrated AC Short Circuit Protection Integrated AC Overvoltage Protection Integrated...
  • Page 61 Technical Data CSI2500S CSI3000S AC Connector Plug and Play Connector Environmental Category 4K4H Pollution Degree Overvoltage Category DC II / AC III Protective Class The Decisive Voltage Class (DVC) PV: C AC: C Com: A Active Anti-islanding Method AFDPF + AQDPF *1 Country of Manufacture (This parameter is China only used for the Australian market)
  • Page 62 Viridian Solar Ltd www.viridiansolar.co.uk E-mail: info@viridiansolar.co.uk...

This manual is also suitable for:

Csi3000sCsi2000sCsi2500s

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