solis S5-GR3P(15-20)K Three Phase Inverter Instruction Manual

solis S5-GR3P(15-20)K Three Phase Inverter

Introduction

Product Description
Solis S5 three-phase inverters integrate DRM and backflow power control functions, which could be suitable for smart grid requirements. This manual covers the three-phase inverter model listed below: S5-GR3P15K, S5-GR3P17K, S5-GR3P20K, S5-GR3P10K-LV The following model is specially supplied for the Belgium market: S5-GR3P10K-LV-BE

Packaging

• When you receive the inverter, please ensure that all the parts listed below are included:

Safety Instructions

Safety Symbols
Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed as follows:

General Safety Instructions

WARNING
Please don’t connect the PV array positive(+) or negative(-) to the ground, it could cause serious damage to the inverter.

WARNING
Electrical installations must be done according to local and national electrical safety standards.

WARNING
To reduce the risk of fire, over-current protective devices (OCPD) are required for circuits connected to the Inverter. The DC OCPD shall be installed per local requirements. All photovoltaic source and output circuit conductors shall have disconnects that comply with the NEC Article 690, Part II. All Solis three-phase inverters feature an integrated DC switch.

CAUTION:
Risk of electric shock. Do not remove the cover. There are no user-serviceable parts inside. Refer servicing to qualified and accredited service technicians.

CAUTION:
The PV array (Solar panels) supplies a DC voltage when they are exposed to sunlight.

CAUTION:
Risk of electric shock from energy stored in capacitors of the Inverter. Do not remove the cover for 5 minutes after disconnecting all power sources (service technician only). The warranty may be voided if the cover is removed without unauthorized.

CAUTION:
The surface temperature of the inverter can exceed 75℃ (167F). To avoid the risk of burns, DO NOT touch the surface when the inverter is operating. The inverter must be installed out of reach of children.

Notice For Use
The inverter has been constructed according to the applicable safety and technical guidelines. Use the inverter in installations that meet the following specifications only:

• Permanent installation is required.
• The electrical installation must meet all the applicable regulations and standards.
• The inverter must be installed according to the instructions stated in this manual. The inverter must be installed according to the correct technical specifications.
• To start the inverter, the Grid Supply Main Switch (AC) must be switched on before the solar panel’s DC isolator can be switched on. To stop the inverter, the Grid Supply Main Switch (AC) must be switched off before the solar panel’s DC isolator can be switched off.

Notice for Disposal
This product shall not be disposed of with household waste. They should be segregated and brought to an appropriate collection point to enable recycling and avoid potential impacts on the environment and human health. Local rules in waste management shall be respected.

Overview

Front Panel Display

LED Status Indicator Lights

Keypad

There are four keys in the front panel of the Inverter(from left to right): ESC, UP, DOWN, and ENTER keys. The keypad is used for:

• Scrolling through the displayed options (the UP and DOWN keys);
• Access to modify the adjustable settings (the ESC and ENTER keys).

LCD

The two-line Liquid Crystal Display (LCD) is located on the front panel of the Inverter, which shows the following information:

• Inverter operation status and data;
• Service messages for the operator;
• Alarm messages and fault indications.

Product handling and storage

Product handling
Please review the instructions below for handling the inverter:

1. The red circles below denote cutouts on the product package. Push in the cutouts to form handles for moving the inverter (see Figure 4.1).
2. Open the carton, then handle both sides of inthe inverter through the area denoted dotted line. ( see figure 4.2).

Product Storage
If the inverter is not to be installed immediately, storage instructions and environmental conditions are below:

• Use the original box to repackage the inverter, and seal it with adhesive tape with the desiccant inside the box.
• Store the inverter(s) in a clean and dry place, free of dust and dirt.
• Storage temperature must be between -40℃ and 70℃ and the humidity should be between 0 and 95% non-condensing.
• Stack no more than three (3) inverters high.
• Keep box(es) away from corrosive materials to avoid damage to the inverter enclosure.
• Inspect packaging regularly. If the packaging is damaged(wet, pest damage, etc), repackage the inverter immediately.
• Store the inverter(s) on a flat, hard surface – not inclined or upside down.
• After long-term storage, the inverter needs to be fully examined and tested by qualified service or technical personnel before use.
• Restarting after a long period of non-use requires the equipment to be inspected and, in some cases, the removal of oxidation and dust that has settled inside the equipment will be required.

Installation

Select a Location for the Inverter
To select a location for the inverter, the following criteria should be considered:

WARNING: Risk of fire
Despite careful construction, electrical devices can cause fires.

• Do not install the inverter in areas containing highly flammable materials or gases.
• Do not install the inverter in potentially explosive atmospheres.
• The mounting structure where the inverter is installed must be fireproof.
• Do not install in small closed spaces where air can not circulate freely. To avoid overheating, always make sure the flow of air around the inverter is not blocked.
• Exposure to direct sunlight will increase the operational temperature of the inverter and may cause output power limiting. Recommends inverter installed to avoid direct sunlight or rain.
• To avoid overheating ambient air temperature must be considered when choosing the inverter installation location. Recommends using a sun shade minimizing direct sunlight when the ambient air temperature around the unit exceeds 104°F/40°C.

NOTE: Nothing should be stored on or placed against the inverter.

• The visibility of LED status indicator lights and LCD should be considered.
• Install vertically (+/- 5°) or tilted backward (<=15°).
• Don’t mount the inverter on the tilted forward wall.
• Don’t mount the inverter on the horizontal.
• The temperature of the inverter heat sinker might 167℉/75℃.
• The inverter is designed for working in extreme environments, operation temperature range: of -15℉/25℃~149℉/65℃.
• When 1 or more inverters are installed in one location, a minimum 500mm clearance should be kept between each inverter or other object. The bottom of the inverter should be 500mm clearance to the ground.

Mounting the Inverter
Dimensions of mounting bracket:

Refer to figure 5.4 and figure 5.5. The inverter shall be mounted vertically. The steps to mount the inverter are listed below.

1. Refer to Figure 5.4, the holes for the expansion bolt based on the hole diameter of the bracket (ST6.360 cross-recessed hexagon head tapping screws, HJ0108 1050mm fished expandable tubular), using the percussion drilling with the 10mm drill need to stay vertically on the wall. And the drill hole must be vertically on the wall. The AAlldrill holes’ depth is 60mm.

2. Make sure the bracket is horizontal. The mounting holes (in Figure 5.4) are marked correctly. Drill the holes into the wall at your marks.

3. Use the suitable expansion screws to fix the bracket on the wall.
   WARNING:
   The inverter must be mounted vertically.

4. Lift the inverter and hang it on the back, and fix both sides of the inverter with locking screws (accessories).

5. Anti-theft lock mount(optional) Anti-theft lock( User-supplied) function is that the inverter is fixed in the bracket in case of theft. The lock is selected by 5mm(the keyhole diameter), and the lock of stainless steel is preferred.

Electrical Connections
Inverter designs quick-connect terminal, so the top cover needn’t open during electrical connection. The sign meaning is located at the bottom of the inverter, as shown below in Table 5.1. All electrical connections are suit for the local or national standard.

The electrical connection of the inverter must follow the steps listed below:

1. Switch the Grid Supply Main Switch (AC) OFF.
2. Switch the DC Isolator OFF.
3. Assemble the PV input connector to the Inverter.

Grounding
To effectively protect the inverter, two grounding methods must be performed. Connect the AC grounding cable (Please refer to section 5.3.3). Connect the external grounding terminal. To connect the grounding terminal on the heat sink, please follow the steps below:

1. Prepare the grounding cable: recommend to use the ≥ 6mm² outdoor copper-core cable.

2. Prepare OT terminals: M6.
   Important: For multiple inverters in parallel, all inverters should be connected to the same ground point to eliminate the possibility of a voltage potential existing between inverter grounds.

3. Strip the ground cable insulation to a suitable length(see Figure 5.8).
   Important:
   B (insulation stripping length) is 2mm~3mm longer than A (OT cable terminal crimping area) 2mm~3mm.

4. Insert the stripped wire into the OT terminal crimping area and use the hydraulic clamp to crimp the terminal to the wire (see Figure 5.9).
   Important:
   After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire.

5. Remove the screw from the heat sink ground point.

6. Connect the grounding cable to the grounding point on the heat sink, and tighten the grounding screw, Torque is 3Nm(see figure 5.10).
   Important:
   For improving anti-corrosion performance, after the ground cable is installed, applying silicone or paint is preferred to protect.

Connect the PV side of the inverter

• Before connecting the inverter, please make sure the PV array open circuit voltage is within the limit of the inverter.
• Before connection, please make sure the polarity of the output voltage of the PV array matches the“DC+” and“DC-” symbols.

Please use an approved DC cable for the PV system.

Industry generic PV cable

（model: PV1-F）

| 4.0~6.0

（12~10AWG）

| 4.0（12AWG）

The steps to assemble the DC connectors are listed as follows:

1. Strip off the DC wire for about 7mm, Disassemble the connector cap nut. (see Figure 5.13)
2. Insert the wire into the connector cap nut and contact pin. (see Figure 5.14)
3. Crimp the contact pin to the wire using a proper wire crimper. (see Figure 5.15)
4. Insert the metal connector into the top of the connector, and tighten the nut with torque 2.5-3 Nm (see Figure 5.16).
5. Measure the PV voltage of the DC input with a multimeter, verify the DC input cable polar (see figure 5.17), and ensure each string of PV voltage is in the range of inverter operation. Connect the DC connector with the inverter until hearing a slight clicking sound indicates the connection has succeeded. (see figure 5.18)

Caution:
If DC inputs are accidently reversely connected or the inverter is faulty or not working properly, it is NOT allowed to turn off the DC switch. Otherwise, it may cause a DC arc and damage the inverter or even lead to a fire disaster.

The correct actions are:

• Use a clip-on ammeter to measure the DC string current.
• If it is above 0.5A, please wait for the solar irradiance to reduce until the current decreases to below 0.5A.
• Only after the current is below 0.5A, you are allowed to turn off the DC switches and disconnect the PV strings.
• To eliminate the possibility of failure, please disconnect the PV strings after turning off the DC switch to aviod secondary failures due to continuous PV energy on the next day. Please note that any damages due to wrong operations are not covered in the device warranty.

Connect the grid side of the inverter
For all AC connections, 6-16mm², cable is required to be used. Please make sure the resistance of the cable is lower than 1.50 mm. If the wire is longer than 20m, preferred to 10-16mm² cable.

Internal AC connector signs “L1”, “L2”, “L3”, “N” and “PE ” are five connection ports (see Figure 5.21). Three live wires are connected to the “L1”, “L2” and “L3” terminals respectively; ground wire connects “PE “; neutral wire connects the “N” terminal:

| Number| Description
---|---|---
Accessory| | Plastic fixture  (Auxiliary installation）

AC

connectors

| | Socket element
| Adapter

|

Seal ring

| Seal ring (thick) suit for 12-18mm cable
Seal ring (thin) suit for 16-21mm cable
| Fastening case
| Swivel nut

• The combination of AC connectors has two seal rings, please refer to different diameters of cable and select the corresponding seal ring.
• The steps of the AC gird terminal connector for installation are as follows: A) Stripped the insulation sleeve of cable for 70mm, so that the bared copper-cored connector reaches 9mm. Cable through nut and sleeve of socket element, insert corresponding terminals and tighten with allen wrench (see figure 5.22). The torque is 1.8-2.0Nm.
  • Tighten the cable with a 3.0 mm allen wrench( focus on the dotted box, see Figure 5.22). Allen screw is easy to drop off, don’t screw out completely.
• Clip plastic fixture (Auxiliary tighten) in socket element, tighten adapter in socket element, then tighten swivel nut with 3-4Nm torque (see figure 5.23).
• Connect the AC connector with an inverter, then tighten the AC connector clockwise (see Figure 5.24), until hearing a slight clicking sound indicates the connection has succeeded.

NOTE
Solis three-phase inverters integrate neutral connection points. However, with or without a neutral connection won’t affect the normal operation of inverter itself. Please refer to the local grid requirement if need a neutral cable connected.

Max. over current protection device (OCPD)
To protect the inverter’s AC grid connection conductors, Solis recommends installing breakers that will protect against overcurrent. The following table defines OCPD ratings for the Solis three-phase inverters.

Inverter| Rated voltage(V)| Rated output current (A)| Current for protection device (A)
---|---|---|---
S5-GR3P15K| 220/380, 230/400| 22.8/21.7| 32
S5-GR3P17K| 220/380, 230/400| 25.8/24.6| 40
S5-GR3P20K| 220/380, 230/400| 30.4/28.9| 40
S5-GR3P10K-LV| 208/220/240| 26.2| 40
S5-GR3P10K-LV-BE| 230| 25.1| 40

Table 5.2 Rating of grid OCPD

Inverter monitoring connection
The inverter can be monitored via Wi-Fi or GPRS. All Solis communication devices are optional (Figure 5.25). For connection instructions, please refer to the Solis Monitoring Device installation manuals.

Meter Connection(optional)
The inverter can work with a three-phase smart meter to achieve an Export Power Management function and/or 24-hour consumption monitoring function.

NOTE
To achieve the Export Power Management function, the smart meter can be installed on either the grid side or the load side. To achieve 24-hour consumption monitoring function, the smart meter can only be installed on the grid side.

Two types of meters are supported: Direct Insert Type Meter – Max input current 80A(DTSD1352-C, Direct Insert Type) External CT Type Meter -150A/5A CTs are supplied(DTSD1352-C, External CT Type) ln other manuals, APP and SolisCloud, meter type will be DTSD1352 for abbreviation. Customers can place an order for a suitable meter from Solis Sales Reps. Below are the connection diagrams of different meters connecting to different locations. For detailed settings please refer to Section 7.5.12

Logic interface connection
Logic interface is required by some local regulations that can be operated by a simple switch or contactor(Not available in South Africa). When the switch is closed the inverter can operate normally. When the switch is opened, the inverter will reduce its output power to zero within 5s. Pin5 and Pin6 of the RJ45 terminal are used for the logic interface connection. Please follow the below steps to assemble the RJ45 connector.

1. Insert the network cable into the communication connection terminal of RJ45.
2. Use the network wire stripper to strip the insulation layer of the communication cable. According to the standard line sequence of Figure 5.31 connect the wire to the plug of RJ45, and then use a network cable crimping tool to make it tight.
3. Connect RJ45 to DRM (logic interface) . After the wire connection, please refer to Chapter 7.5.9.1 to enable the logic interface function.

Start & Stop

Start the Inverter
To start up the Inverter, the following steps must be strictly followed:

1. Switch the grid supply main Switch (AC) ON first.
2. Switch the DC switch ON. If the voltage of PV arrays is higher than the start-up voltage, the inverter will turn on. The red LED power will light.
3. When both the DC and the AC sides supply to the inverter, it will be ready to generate power. Initially, the inverter will check both its internal parameters and the parameters of the AC grid, to ensure that they are within the acceptable limits. At the same time, the green LED will flash and the LCD will display the information of INITIALIZING.
4. After 30-300 seconds (depending on local requirements), the inverter will start to generate power. The green LED will be on continually and the LCDs GENERATING.
   WARNING: Do not touch the surface when the inverter is operating. It may be hot and cause burns.

Stop the Inverter
To stop the inverter, the steps below must be followed in the exact order outlined.

1. Select “Grid Off” in the Advanced Setting of the Inverter LCD.
2. Turn off the AC Switch between the Solis inverter and the Grid.
3. Wait approximately 30 seconds (during this time, the AC side capacitors are dissipating energy). If the inverter has a DC voltage above the start-up threshold, the red POWER LED will be lit. Switch the DC switch OFF.
4. Confirm all LEDs switch OFF (~one (1) minute).

CAUTION
Although the inverter DC disconnect switch is in the OFF position and all the LEDs are OFF, operators must wait five (5) minutes after the DC power source has been disconnected before opening the inverter cabinet. DC side capacitors can take up to five (5) minutes to dissipate all stored energy.

Operation

In normal operation, the LCD screen alternatively shows inverter power and operation status (see Figure 7.1). The screen can be scrolled manually by pressing the UP/DOWN keys. Pressing the ENTER key gives access to the Main Menu.

Main Menu
There are four submenus in the Main Menu (see Figure 7.1):

1. Information
2. Settings
3. Advanced Info.
4. Advanced Settings

Information
The Solis three Phase S5 Inverter main menu provides access to operational data and information. The information is displayed by selecting “Information” from the menu and then by scrolling up or down.

Lock screen
Pressing the ESC key returns to the Main Menu. Pressing the ENTER key locks (Figure 7.2(a)) or unlocks (Figure 7.2 (b)) the screen.

Settings

The following submenus are displayed when the Settings menu is selected:

1. Set Time
2. Set Address

Set Time
This function allows time and date setting. When this function is selected, the LCD will display a screen as shown in Figure 7.3.

Press the UP/DOWN keys to set time and data. Press the ENTER key to move from one digit to the next (from left to right). Press the ESC key to save the settings and return to the previous menu.

Set Address
This function is used to set the address when multi-inverters are connected to three monitors. The address number can be assigned from “01” to “99”(see Figure 7.4). The default address number of the Solis Three Phase Inverter is “01”.

Press the UP/DOWN keys to set the address. Press the ENTER key to save the settings. Press the ESC key to cancel the change and return to the previous menu.

Advanced Info – Technicians Only

NOTE: Access to this area is for fully qualified and accredited technicians only. Enter the menu “Advanced Info.” and “Advanced settings” (need password).

Select “Advanced Info.” from the Main Menu. The screen will require the password as below:

The default password is “0010″. Please press “down” to move the cursor, and press “up” to select the number. After entering the correct password the Main Menu will display a screen and be able to access the following information.

1. Alarm Message
2. Running message
3. Version
4. Daily Energy
5. Monthly Energy
6. Yearly Energy
7. Daily Records
8. Communication Data
9. Warning Message

The screen can be scrolled manually by pressing the UP/DOWN keys. Pressing the ENTER key gives access to a submenu. Press the ESC key to return to the Main Menu.

Alarm Message
The display shows the 100 latest alarm messages (see Figure 7.6). Screens can be scrolled manually by pressing the UP/ DOWN keys. Press the ESC key to return to the previous menu.

Running Message
This function is for maintenance personnel to get a running message such as internal temperature, Standard No.1,2, etc. Screens can be scrolled manually by pressing the UP/DOWN keys.

Version
The screen shows the model version of the inverter. The screen will show the software ver by pressing the UP and DOWN at the same time. (see Figure 7.7).

Daily Energy
The function is to check the energy generation for a selected day.

Press the DOWN key to move the cursor to day, month, and year, and press the UP key to change the digit. Press Enter after the date is fixed.

Press the UP/DOWN key to move one date from another.

Monthly Energy
The function is for checking the energy generation for a selected month.

Yearly Energy
The function is to check the energy generation for the selected year.

Press the DOWN key to move the cursor to day and year, and press the UP key to change the digit. Press Enter after the date is fixed.

Press the UP/DOWN key to move one date from another.

Daily Record
The screen shows the history of changing settings. Only for maintenance personel.

Communication Data
The screen shows the internal data of the Inverter (see Figure 7.14), which is for service technicians only.

Warning Message
The display shows the 100 latest warning messages (see Figure 7.15). Screens can be scrolled manually by pressing the UP/ DOWN keys. Press the ESC key to return to the previous menu.

Advanced Settings – Technicians Only

NOTE: Access to this area is for fully qualified and accredited technicians only. Please follow 7.4 to enter the password to access this menu.

Select Advanced Settings from the Main Menu to access the following options:

1. Select Standard 2. Grid ON/OFF 3. 24H Switch 4. Clear Energy 5. Reset Password 6. Power Control 7. Calibrate Energy 8. Special Settings 9. STD. Mode Settings 10. Restore Settings 11. HMI Update 12. Internal EPM Set 13. External EPM set 14. Restart HMI 15. Debug Parameter 16. DSP Update 17. Compensation Set

Selecting Standard
This function is used to select the grid’s reference standard (see Figure 7.16).

Press the UP/DOWN keys to select the standard (G59/3, UL-480V, VDE0126, AS4777-15, AS4777-02, CQC380A, ENEL, UL-380V, MEX-CFE, C10/11 and “User-Def” function). Press the ENTER key to confirm the setting. Press the ESC key to cancel changes and return to the previous menu.

NOTE: This function is for technicians’ use only.

Selecting the “User-Def” menu will access the following submenu (see Figure 7.17),

NOTE: The ” User-Def” function can be only used by the service engineer and must be allowed by the local energy supplier.

Below is the setting range for “User-Def”. Using this function, the limits can be changed manually.

Table 7.2 Setting ranges for User-Def (L-N)
Press the UP/DOWN keys to scroll through items. Press the ENTER key to edit the highlighted item. Press the UP/DOWN keys again to change the setting. Press the ENTER key to save the setting. Press the ESC key to cancel changes and return to the previous menu.

NOTE For different countries, the grid standard needs to be set as different according to local requirements. If there is any doubt, please consult Solis service technicians for details.

Grid ON/OFF
This function is used to start up or stop the power generation of the Solis Three Phase Inverter (see Figure 7.18).

Screens can be scrolled manually by pressing the UP/DOWN keys. Press the ENTER key to save the setting. Press the ESC key to return to the previous menu.

24H Switch
This function controls the 24-hour consumption function enable or disable (see Figure 7.19).

NOTE:
When this is enabled, the inverter LCD will still be alive at night with the power LED light on. If the grid malfunctions at night, the system can’t recover even after the grid is back to normal but the consumption data will still be recorded in the meter. Until sunrise, the system will start to work again while the meter data can be uploaded to the Solis monitoring system to calibrate the load consumption data.

Clear Energy
Clear Energy can reset the history yield of inverter

• These two functions apply to maintenance personnel only, wrong operation will prevent the inverter from working properly.

Reset Password
This function is used to set the new password for the menu “Advanced info.” and “Advanced information” (see Figure 7.20).

Enter the right password before setting a new password. Press the DOWN key to move the cursor, and Press the UP key to revise the value. Press the ENTER key to execute the setting. Press the ESC key to return to the previous menu.

Power control
Active and reactive power can be set through the power setting button. There are 5 items for this sub-menu:

1. Set output power
2. Set Reactive Power
3. Out_P With Restore
4. Rea_P With Restore
5. Select PF Curve
   • This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

Calibrate Energy
Maintenance or replacement could clear or cause a different value of total energy. Using this function could allow the ser to revise the value of total energy to the same value as before. If the monitoring website is used the data will be synchronous with this setting automatically.

Press the DOWN key to move the cursor, and Press the UP key to revise the value. Press the ENTER key to execute the setting. Press the ESC key to return to the previous menu.

Special Settings

• This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

STD Mode settings
There are 5 settings under STD. Mode settings.

1. Working mode
2. Power Rate limit
3. Freq. Derate set
4. 10mins OV-G-V set.
5. Initial Settings
   • This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

Enable logic interface settings
When selecting the G98 or G99 standard to use the logic interface function, please follow the below settings to enable the DRM. DRM default setting is “OFF” If DRM is set to “ON”, but the logic interface is un-connected to the switch or the switch is open, the inverter HMI will display “Limit by DRM” and the inverter output power will be limited to zero.

1. Select Initial Settings
2. Select DRM and set it “ON”

Restore Settings
There are 5 items in the initial setting submenu. Restore setting could set all items in the 7.5.8 special setting to default. The screen shows as below:

Press the Enter key to save the setting after setting the grid off. Press the ESC key to return the previous mean.

HMI Update
This function is used for updating the LCD program.

• This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

Internal EPM Set

NOTE

• This section includes two functions related to the smart meter.
• Please refer to section 5.3.6 for detailed connection diagrams.
• Function 1: Internal Export Power Management Function
• Inverters can work with a smart meter to dynamically limit the export power of the system. Zero injection can be achieved.
• Smart meters can be installed either on the grid side OR the load side. Function 2: 24 Hour Consumption Monitoring Function
• Only applicable if the Solis monitoring system is used.
• Inverters can work with a smart meter to monitor the load consumption data for the whole day and the data will be displayed on the Solis monitoring system. Smart meters can only be installed on the grid side.

Please refer to the below instructions for different user scenarios.

Scenario 1. Only Function 1 is required

• Step 1: Refer to Section 5.3.6 to connect the smart meter on the grid side or load side.
• Step 2: Select Section 7.5.12.1 Mode Select Option 2(Meter in Load) or  Option 3 (Meter in Grid) accordingly.
• Step 3: Configure the Section 7.5.12.2 to set the allowed backflow power.
• Step 4: Configure Section 7.5.12.3 to enable the failsafe function (If necessary). Step 5: Configure Section 7.5.12.4 to modify the work mode (If necessary).
• Scenario 2. Both Functions 1 and 2 are required

Using a Smart Meter

• Step 1: Refer to Section 5.3.6 to connect the smart meter on the grid side.
• Step 2: Select Section 7.5.12.1 Mode Select Option 3(Meter in Grid).
• Step 3: Select Section 7.5.3 24H Switch as “Enable”.
• Step 4: Configure Section 7.5.12.2 to set the allowed backflow power.
• Step 5: Configure Section 7.5.12.3 to enable the failsafe function (If necessary). Step 6: Configure the Solis monitoring system (Please refer to the manual of monitoring device).

If the customer does not want to enable the export power control function, please change the “backflow power” to the max output power of the inverter in Step 4 OR simply select the mode as “consumption monitor” in Step 2 and skip Steps 4-5.

Select EPM Settings from the Main Menu to access the following options:
1. Mode Select 2. Backflow Power 3. Fail-safe ON/OFF 4. Backflow Work Mode

Mode Select
There are 4 settings in this menu as below:
1. OF 2. Meter in Load 3. Meter in Grid 4. Consumption Monitor

• OFF: Functions are disabled
• Meter in Load : Solis Smart Meter is connected to the load branch circuit.
• Meter in Grid : Solis Smart Meter is connected to the grid connection point (The backflow power is defaulted as 0W).
• Consumption Monitor: Solis Smart Meter is connected to the grid connection point (The backflow power setting is not applicable).

Backflow Power
The setting is used to define the allowed export power into the grid. The setting range is between 00000W to 29900W.

• Press the UP/DOWN keys to set data. Press the ENTER key to set backflow power. Then press the DOWN keys to move the cursor, and press UP to change the number.
• Press the ESC key to save the settings and return to the previous menu.

Fail-safe ON/OFF
This setting is used to give out an alarm (stop inverter generation as well) when the Meter connection is lost during operation. It can prevthe ent potential backflow of power into the grid when the system loses control.

It is only mandatory to turn on this function when the inverter is installed in the UK due to the G100 regulation. For other regions, customers can enable or disable the function as they desire.

NOTE: When the failsafe function is ON and CT/Meter is disconnected somehow, the inverter will stop generation and give a “Failsafe” alarm on the LCD. When the failsafe function is OFF and the CT/Meter is disconnected somehow, the inverter will keep the output power at the last moment when the CT/Meter is still connected. After a restart, the inverter will output at full power without limit.

Backflow Work Mode
This submenu is used for setting backflow work modes: 01, and 02. “01” is the default mode.

Mode “01” ” as shown in figure 7.28, is the average limiting mode, the output power of each phase is the average of the three-phase load power, and it is more than the phase of the lowest power in three phases.

Mode “02” ” as shown in figure 7.29 the per phase limiting mode, the inverter only generates the power that equals to one of the three-phase load power that is the lowest load power of a certain phase.

External EPM Set
This setting should only be turned on when Solis external EPM device is used. Two options are available：5G-EPM and Others-EPM.

5G-EPM Failsafe Option should be turned ON when the 5G series EPM device is used Others-EPM Failsafe Option should be turned ON when the 2G series EPM device is used Only one option can be activated each time.

Restart HMI
The function is used to restart the HMI.

• This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

Debug Parameter
This function is used for manufacturer maintenance personnel only.

DSP Update
The function is used to update the DSP.

• This function applies to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

Compensation Set

• This functappliesable to maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

AFCI function
Solis inverters have the built-in AFCI function which can detect the arc fault on the DC circuit and shut down the inverter to prevent a fire disaster.

Enable the AFCI function
The AFCI function can be enabled in the following. Path: Advanced Setting -> Password: 0010 ->Special Settings -> AFCI Set -> AFCI ON/OFF -> ON

Warning:
The “AFCI Level” is reserved for Solis technicians ONLY. Do not change the sensitivity otherwise, it will lead to frequent false alarms or malfunctions. Solis is not responsible for any further damages caused by unauthorized modifications.

NOTE: The setting corresponds to the current status as well which can be used to inspect the ON/OFF state of the AFCI function.

Arc Fault During normal operation, if a DC arc is detected, the inverter will shut down and give out the following alarm:

The installer needs to thoroughly inspect the DC circuit to ensure all the cables are correctly fastened. Once the DC circuit issue has been fixed or it is confirmed to be OK, press “ESC” for 3s and wait for the inverter to restart.

Maintenance

Solis Three Phase Inverter does not require any regular maintenance. However, cleaning the dust on heatthe sink will help the inverter to dissipate the heat and increase its lifetime. The dust can be removed with a soft brush.

CAUTION: Do not touch the inverter’s surface when it is operating. Some parts of the inverter may be hot and cause burns. Turn off the inverter (refer to Section 6.2) and wait for a cool-down period before any maintenance or cleaning operation.

The LCD and the LED status indicator lights can be cleaned with a damp cloth if they are too dirty to be read.

NOTE: Never use any solvents, abrasives, or corrosive materials to clean the inverter.

Fan Maintenance
If the fan does not work properly, the inverter will not be cooled effectively. and it may affect the effective operation of the inverter . Therefore, it is necessary to clean or replace a broken fan as follows:

1. Disconnect the AC power.
2. Turn the DC switch to the “OFF” position.
3. Wait for 10 minutes at least.
4. Disconnect all electric connections.
5. Place the inverter on the platform.
6. Remove the 4 screws on the fan plate and pull out the fan assembly slowly.
7. Disconnect the fan connector carefully and take out the fan.
8. Clean or replace the fan. Assemble the fan on the rack.
9. Connect the electrical wire and reinstall the fan assembly. Restart the inverter.

Troubleshooting

The inverter is designed by the most important international grid-tied standards and safety and electromagnetic compatibility requirements. Before delivering to the customer, the inverter has been subjected to several tests to ensure its optimal operation and reliability. In case of failure, the LCD screen will display an alarm message. In this case, the inverter may stop feeding into the grid. The failure descriptions and their corresponding alarm messages are listed in Table 9.1:

No power

|

Inverter no power on LCD

| 1. Check PV input connections 2. Check the DC input voltage

(single phase >120V, three-phase >350V) 3.Check if PV+/- is reversed

LCD shows initializing all the time

|

Can not start-up

| 1. Check if the connector on the main board or power board is fixed.

2. Check if the DSP connector to the power board is fixed.

OV-G-V01/02/03/04

|

Over grid voltage

| 1. The resistance of the AC cable is too high. Change bigger size grid cable

2. Adjust the protection limit if it’s allowed by an electrical company.

UN-G-V01/02| Under grid voltage|

1. Use user user-defined function to adjust the protection limit if it’s allowed by an electrical company.

OV-G-F01/02| Over grid frequency
UN-G-F01/02| Under grid frequency
G-IMP| High grid impedance

NO-GRID

| No grid voltage| 1. Check connections and grid switch. 2. Check the grid voltage inside the inverter

terminal.

OV-DC01/02/03/04| Over DC voltage| 1. Reduce the module number in series
OV-BUS| Over DC bus voltage| 1. Check inverter inductor connection 2. Check driver connection
UN-BUS01/02| Under DC bus voltage
GRID-INTF01/02| Grid interference|

1. Restart the inverter 2. Change power board

OV-G-I| Over grid current
IGBT-OV-I| Over IGBT current
DC-INTF OV-DCA-I|

DC input overcurrent

| 1. Restart inverter

2. Identify and remove the string to the fault MPPT 2. Change power board

IGFOL-F| Grid current tracking fail|

1. Restart the inverter or contact the installer.

IG-AD| Grid current sampling fails
INI-FAULT| Initialization system fault|

1. Restart the inverter or contact the installer.

DSP-B-FAULT| Comm. failure between main and slave DSP
12Power-FAULT| 12V power supply fault
Alarm Message| Failure description| Solution
---|---|---

OV-TEM

|

Over Temperature

| 1. Check the inverter surrounding ventilation. 2. Check if there’s sunshine directly on

inverter in hot weather.

PV ISO-PRO 01/02

|

PV isolation protection

| 1. Remove all DC input, reconnect, and restart the inverter one by one.

2. Identify which string causes the fault and check the isolation of the string.

ILeak-PRO 01/02/03/04| Leakage current protection| 1. Check the AC and DC connection

2. Check the inverter inside the cable connection.

RelayChk-FAIL| Relay check fail|

1. Restart the inverter or contact the installer.

DCinj-FAULT| High DC injection current
AFCI self-detection (model with AFCI module)|

AFCI module self-detects fault

|

1. Restart the inverter or connect the technician.

Arcing protection (model with AFCI module)|

Detect arc in DC circuit

|

1. Check the inverter connection whether the arc exists and restart the inverter.

Screen OFF with DC applied

|

Inverter internally damaged

| 1. Do not turn off the DC switches as it will damage the inverter.

2. Please wait for the solar irradiance to reduce and confirm the string current is less than 0.5A with a clip-on ammeter and then turn off the DC switches.

3. Please note that any damages due to wrong operations are not covered in the device warranty.

NOTE: If the inverter displays any alarm message as listed in Table 9.1; please turn off the inverter (refer to Section 6.2 to stop your inverter) and wait for 5 minutes before restarting it (refer to Section 6.1 to start your inverter). If the failure persists, please contact your local distributor or the service center. Please keep ready with you the following information before contacting us.

1. Serial number of Solis Three Phase Inverter;
2. The distributor/dealer of Solis Three Phase Inverter (if available);
3. Installation date.
4. The description of the problem (i.e. the alarm message displayed on the LCD and the status of the LED status indicator lights. Other readings obtained from the Information submenu (refer to Section 6.2) will also be helpful.);
5. The PV array configuration (e.g. number of panels, capacity of panels, number of strings, etc.);
6. Your contact details.

Specifications

CEI 0-21, C10/11, NRS 097-2-1, TOR,

| EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068,
| IEC 61683, EN 50530
Safety/EMC standard| IEC 62109-1/-2, EN 61000-6-1/-2/-3/-4
DC connection| MC4 connector
AC connection| Quick connection plug
Display| LCD, 2×20 Z.
Communication connections| RS485, DO, DI, Optional: Wi-Fi, GPRS, USB
Warranty Terms| 5 Years (Extend to 20 Years)
Model| S5- GR3P17K
---|---
Max. DC input voltage (Volts)| 1100
Rated DC voltage (Volts)| 600
Start-up voltage (Volts)| 180
MPPT voltage range (Volts)| 160…1000
Max. input current (Amps)| 32+32
Max short circuit input current (Amps)| 40+40
MPPT number/Max input strings number| 2/4
Rated output power (Watts)| 17000
Max. output power (Watts)| 18700
Max. apparent output power (VA)| 18700
Rated grid voltage (Volts)| 3/N/PE, 220/380, 230/400
Rated output current (Amps)| 25.8/24.6
Max. output current (Amps)| 27.0
Power Factor (at rated output power)| >0.99 (0.8 leading – 0.8 lagging)
THDi (at rated output power)| <2%
Rated grid frequency (Hertz)| 50/60
Operating frequency range (Hertz)| 45…55 or 55…65
Max. efficiency| 98.7%
EU efficiency| 98.1%
Dimensions| 310W563H*219D (mm)
Weight| 21.1kg
Topology| Transformerless
Self-consumption (night)| ＜1 W
Operating ambient temperature range| -25℃…+60℃
Relative humidity| 0~100%
Ingress protection| IP66
Noise emission (typical)| <60 dBA
Cooling concept| Intelligent redundant fan-cooling
Max. operation altitude| 4000m
| G98 or G99, VDE-AR-N 4105 / VDE V 0124,
| EN 50549-1, VDE 0126 / UTE C 15 / VFR:2019,
Grid connection standard| RD 1699 / RD 244 / UNE 206006 / UNE 206007-1,

CEI 0-21, C10/11, NRS 097-2-1, TOR,

| EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068,
| IEC 61683, EN 50530
Safety/EMC standard| IEC 62109-1/-2, EN 61000-6-1/-2/-3/-4
DC connection| MC4 connector
AC connection| Quick connection plug
Display| LCD, 2×20 Z.
Communication connections| RS485, DO, DI, Optional: Wi-Fi, GPRS, USB
Warranty Terms| 5 Years (Extend to 20 Years)
Model| S5- GR3P20K
---|---
Max. DC input voltage (Volts)| 1100
Rated DC voltage (Volts)| 600
Start-up voltage (Volts)| 180
MPPT voltage range (Volts)| 160…1000
Max. input current (Amps)| 32+32
Max short circuit input current (Amps)| 40+40
MPPT number/Max input strings number| 2/4
Rated output power (Watts)| 20000
Max. output power (Watts)| 22000
Max. apparent output power (VA)| 22000
Rated grid voltage (Volts)| 3/N/PE, 220/380, 230/400
Rated output current (Amps)| 30.4/28.9
Max. output current (Amps)| 31.8
Power Factor (at rated output power)| >0.99 (0.8 leading – 0.8 lagging)
THDi (at rated output power)| <2%
Rated grid frequency (Hertz)| 50/60
Operating frequency range (Hertz)| 45…55 or 55…65
Max. efficiency| 98.7%
EU efficiency| 98.1%
Dimensions| 310W563H*219D (mm)
Weight| 21.1kg
Topology| Transformerless
Self-consumption (night)| ＜1 W
Operating ambient temperature range| -25℃…+60℃
Relative humidity| 0~100%
Ingress protection| IP66
Noise emission (typical)| <60 dBA
Cooling concept| Intelligent redundant fan-cooling
Max. operation altitude| 4000m
| G98 or G99, VDE-AR-N 4105 / VDE V 0124,
| EN 50549-1, VDE 0126 / UTE C 15 / VFR:2019,
Grid connection standard| RD 1699 / RD 244 / UNE 206006 / UNE 206007-1,

CEI 0-21, C10/11, NRS 097-2-1, TOR,

| EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068,
| IEC 61683, EN 50530
Safety/EMC standard| IEC 62109-1/-2, EN 61000-6-1/-2/-3/-4
DC connection| MC4 connector
AC connection| Quick connection plug
Display| LCD, 2×20 Z.
Communication connections| RS485, DO, DI, Optional: Wi-Fi, GPRS, USB
Warranty Terms| 5 Years (Extend to 20 Years)
Model| S5-GR3P10K-LV
---|---
Max. DC input voltage (Volts)| 1100
Rated DC voltage (Volts)| 330
Start-up voltage (Volts)| 180
MPPT voltage range (Volts)| 160…500
Max. input current (Amps)| 32+32
Max short circuit input current (Amps)| 40+40
MPPT number/Max input strings number| 2/4
Rated output power (Watts)| 10000
Max. output power (Watts)| 11000
Max. apparent output power (VA)| 11000
Rated grid voltage (Volts)| 3/(N)/PE~208/220/240
Rated output current (Amps)| 26.2
Max. output current (Amps)| 28.8
Power Factor (at rated output power)| >0.99 (0.8 leading – 0.8 lagging)
THDi (at rated output power)| <2%
Rated grid frequency (Hertz)| 50/60
Operating frequency range (Hertz)| 45…55 or 55…65
Max. efficiency| 98.0%
EU efficiency| 97.5%
Dimensions| 310W563H*219D (mm)
Weight| 21.1kg
Topology| Transformerless
Self-consumption (night)| ＜1 W
Operating ambient temperature range| -25℃…+60℃
Relative humidity| 0~100%
Ingress protection| IP66
Noise emission (typical)| <60 dBA
Cooling concept| Intelligent redundant fan-cooling
Max. operation altitude| 4000m
| G98 or G99, VDE-AR-N 4105 / VDE V 0124,
| EN 50549-1, VDE 0126 / UTE C 15 / VFR:2019,
Grid connection standard| RD 1699 / RD 244 / UNE 206006 / UNE 206007-1,

CEI 0-21, C10/11, NRS 097-2-1, TOR,

| EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068,
| IEC 61683, EN 50530
Safety/EMC standard| IEC 62109-1/-2, EN 61000-6-1/-2/-3/-4
DC connection| MC4 connector
AC connection| Quick connection plug
Display| LCD, 2×20 Z.
Communication connections| RS485, DO, DI, Optional: Wi-Fi, GPRS, USB
Warranty Terms| 5 Years (Extend to 20 Years)
Model| S5-GR3P10K-LV-BE
---|---
Max. DC input voltage (Volts)| 1100
Rated DC voltage (Volts)| 330
Start-up voltage (Volts)| 180
MPPT voltage range (Volts)| 160…500
Max. input current (Amps)| 32+32
Max short circuit input current (Amps)| 40+40
MPPT number/Max input strings number| 2/4
Rated output power (Watts)| 10000
Max. output power (Watts)| 10000
Max. apparent output power (VA)| 10000
Rated grid voltage (Volts)| 3/(N)/PE~230
Rated output current (Amps)| 25.1
Max. output current (Amps)| 25.1
Power Factor (at rated output power)| >0.99 (0.8 leading – 0.8 lagging)
THDi (at rated output power)| <2%
Rated grid frequency (Hertz)| 50
Operating frequency range (Hertz)| 45…55
Max. efficiency| 98.0%
EU efficiency| 97.5%
Dimensions| 310W563H*219D  (mm)
Weight| 21.1kg
Topology| Transformerless
Self-consumption (night)| ＜1 W
Operating ambient temperature range| -25℃…+60℃
Relative humidity| 0~100%
Ingress protection| IP66
Noise emission (typical)| <60 dBA
Cooling concept| Intelligent redundant fan-cooling
Max. operation altitude| 4000m

Grid connection standard

|

C10/11

Safety/EMC standard| IEC 62109-1/-2, EN 61000-6-1/-2/-3/-4
DC connection| MC4 connector
AC connection| Quick connection plug
Display| LCD, 2×20 Z.
Communication connections| RS485, DO, DI, Optional: Wi-Fi, GPRS
Warranty Terms| 5 Years (Extend to 20 Years)

• Ginlong Technologies Co., Ltd. No. 57 Jintong Road, Binhai Industrial Park, Xiangshan, Ningbo, Zhejiang, 315712, P.R.China.
• Tel: +86 (0)574 6578 1806
• Fax: +86 (0)574 6578 1606
• Email:info@ginlong.com
• Web:www.ginlong.com

Please adhere to the actual products in case of any discrepancies in this user manual.

• If you encounter any problem with the inverter, please find out the inverter S/N and contact us, we will try to respond to your question ASAP.

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