SOLIS Solis-125K-EHV-5G User manual

Installation and Operation Manual
Solis Three Phase Inverter
(125kW)
Ver 1.3
Ginlong Technologies Co., Ltd.
Ginlong Technologies Co., Ltd.
No. 57 Jintong Road, Binhai Industrial Park, Xiangshan, Ningbo,
Zhejiang, 315712, P.R.China.
Tel: [phone]
Fax: [phone]
If you encounter any problem on the inverter, please find out the inverter S/N
and contact us, we will try to respond to your question ASAP.
Please adhere to the actual products in case of any discrepancies in this user manual.

ContentsContents
1. Introduction
1.1 Product Description
1.2 Unpacking and storage
1.2.1 Storage
2. Safety instructions
2.1 Safety symbols
2.2 General safety instructions
2.3 Notice for use
2.4 Protection Circuitry and Controls
3. Installation
3.1 Environmental considerations
3.1.1 Select a location for the inverter
3.1.2 Other environmental considerations
3.2 Product handling
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3.3 Mounting the Inverter
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14
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3.3.1 Wall mounting 15
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3.3.2 Rack mounting
3.4 Electrical Connections 17
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18
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3.4.1 Grounding 20
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3.4.2 Connect PV side of inverter 23
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3.4.3 Connect grid side of inverter
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6.4.1 Lock screen
26
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4. Communication & Monitoring
5. Commissioning
5.1 Selecting the appropriate grid standard
5.1.1 Verifying grid standard for country of installation
32
32
32
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5.2 Changing the grid standard
5.2.1 Procedure to set the grid standard
5.3 Setting a custom grid standard
5.4 Preliminary checks
5.4.1 DC Connections
5.4.2 AC Connections
5.4.3 DC configuration
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34
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5.4.4 AC configuration 36
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6. Normal operation
6.1 Start-up procedure
6.2 Shutdown procedure
37
37
37
6.3 Main Menu 38
38
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6.4 Information ………………………………………………………………………………………………………………………
4.1 RS485 communication 27
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4.2 Ethernet communication 29
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6.5.1 Set Time 40
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6.5 Settings 40
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6.5.2 Set Address 40
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6.6 Advanced Info - Technicians Only 41
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6.6.1 Alarm Message 41
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6.6.2 Running Message 41
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6.6.3 Version 42
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6.6.4 Daily Energy
42
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6.6.5 Monthly Energy
42
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6.6.6 Yearly Energy
43
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6.6.7 Daily Records
43
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6.6.8 Communication Data
43
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6.6.9 Warning Message
43
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6.7 Advanced Settings - Technicians Only 44
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6.7.1 Selecting Standard 44
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6.7.2 Grid ON/OFF 45
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6.7.3 Clear Energy 45
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6.7.4 Reset Password 46
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6.7.5 Power control 46
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6.7.6 Calibrate Energy 46
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6.7.7 Special Settings
47
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6.7.8 STD Mode settings
47
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6.7.9 Restore Settings
47
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6.7.10 HMI Update
48
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6.7.11 External EPM Set
48
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6.7.12 Restart HMI
48
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6.7.13 Debug Parameter
49
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6.7.15 DSP Update 50
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6.7.16 Compensation Set 50
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6.7.17 I/V Curve
51
7. Maintenance ……………………………………………………………………………………………………………………………………… 52
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7.2 Fan Maintenance 53
7.3 Fuse Maintenance 54
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7.4 Surge Protection Device Maintenance 55
8. Troubleshooting ……………………………………………………………………………………………………………………………… 56
9. Specifications …………………………………………………………………………………………………………………………………… 59
10. Appendices ……………………………………………………………………………………………………………………………………… 60
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6.7.14 Fan Test
49
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7.1 Anti-PID Function 52

.5.
1. Introduction
Figure 1.1 Front view
Figure 1.2 Bottom view
1.1 Product Description
DC Switch AC output
DC input
AC Switch
1. Introduction 1.2 Unpacking and storage
Inverter packing list
Part #
1
2
Description
Inverter
Back plate
Number
1
1Hexagon bolt M6*12
Remarks
The inverter ships with all accessories in one carton.
When unpacking, please verify all the parts listed below are included:
3
4
5
Fastening screw 2
DC connector
User manual
20
1
123
4
5
.4.
Solis Three phase Inverters covert DC power from the photovoltaic(PV) array
into alternating current(AC) power that can satisfy local loads as well as feed the power
distribution grid.
This manual covers the three phase inverter model listed below:
Solis-125K-EHV-5G
Vent COM
COM
Installation and Operation Manual
Solis Three Phase Inverter
(125kW)
Ver 1.3
Ginl ong Techno logie s Co., Lt d.
LED lights
LCD display
4 buttons

1. Introduction
.7..6.
2.1 Safety symbols
Improper use may result in electric shock hazards or burns. This product manual contains
important instructions that are required to be followed during installation and maintenance.
Please read these instructions carefully before use and keep them in an easily locatable place
for future reference.
Safety symbols used in this manual, which highlight potential safety risks and important safety
information, are listed below:
WARNING
Symbol indicates important safety instructions, which if not correctly
followed, could result in serious injury or death.
NOTE
Symbol indicates important safety instructions, which if not correctly
followed, could result in damage to or the destruction of the inverter.
CAUTION, RISK OF ELECTRIC SHOCK
Symbol indicates important safety instructions, which if not correctly
followed, could result in electric shock
CAUTION, HOT SURFACE
Symbol indicates safety instructions, which if not correctly
followed, could result in burns.
2.2 General safety instructions
WARNING
Do not connect PV array positive (+) or negative (-) to ground – doing
so could cause serious damage to the inverter.
WARNING
Electrical installations must be done in accordance with local and
national electrical safety standards.
● Use the original box to repackage the inverter, seal with adhesive tape with the desiccant inside the
box.
● Store the inverter in a clean and dry place, free of dust and dirt. The storage temperature must be
between -40 and 158 F (-40 - 70C) and humidity should be between 0 to 100%, non-condensing.
● Do not stack more than two (2) inverters high on a single pallet. Do not stack more than 2 pallets
high.
● Keep the box(es) away from corrosive materials to avoid damage to the inverter enclosure.
● Inspect the packaging regularly. If packing is damaged (wet, pest damages, etc.), repackage the
inverter immediately.
● Store inverters on a flat, hard surface -- not inclined or upside down.
● After 100 days of storage, the inverter and carton must be inspected for physical damage before
installing. If stored for more than 1 year, the inverter needs to be fully examined and tested by
qualified service or electrical personnel before using.
● Restarting after a long period of non-use requires the equipment be inspected and, in some cases,
the removal of oxidation and dust that has settled inside the equipment will be required.
1.2.1 Storage
If the inverter is not installed immediately, storage instructions and environmental conditions are below:
DONOTSTACK
MORETHANHIGH
Figure 1.3
2
2. Safety Instructions
WARNING
To reduce the risk of fire, branch circuit over-current protective
devices (OCPD) are required for circuits connected to the Inverter.
CAUTION
The PV array (solar panels) supplies a DC voltage when exposed to light.

.9..8.
CAUTION
Risk of electric shock from energy stored in the inverter's capacitors.
Do not remove cover until five (5) minutes after disconnecting all sources
of supply have passed, and this can only be done by a service technician.
The warranty may be voided if any unauthorized removal of cover occurs.
CAUTION
The inverter's surface temperature can reach up to 75⁰C (167⁰F). To avoid
risk of burns, do not touch the surface when the inverter is operating.
Inverter must be installed out of the reach of children.
WARNING
The inverter can only accept a PV array as a DC input. Using any other
type of DC source could damage the inverter.
The inverter has been constructed according to applicable safety and technical guidelines.
Use the inverter in installations that meet the following requirements ONLY:
1). The inverter must be permanently installed.
2). The electrical installation must meet all the applicable regulations and standards.
3). The inverter must be installed according to the instructions stated in this manual.
4). The system design must meet inverter specifications.
To start-up the inverter, the Grid Supply Main Switch (AC) must be turned on, BEFORE the DC
Switch is turned on. To stop the inverter, the Grid Supply Main Switch (AC) must be turned off
before the DC Switch is turned off.
2.3 Notice for use
2. Safety Instructions 3.1 Environmental considerations
3.1.1 Select a location for the inverter
When selecting a location for the inverter, consider the following:
● The temperature of the inverter heat-sink can reach 167⁰F (75C).
● The inverter is designed to work in an ambient temperature range between -13⁰F to 140⁰F (-25 - 60C).
● If multiple inverters are installed on site, a minimum clearance of 500mm should be kept between
each inverter and all other mounted equipment. The bottom of the inverter should be at least 500mm
above of the ground or floor (see Figure 3.1).
● The LED status indicator lights and the LCD located on the inverter's front panel should not be
blocked.
● Adequate ventilation must be present if the inverter is to be installed in a confined space.
Figure 3.1 Distances required between inverters
NOTE
Nothing should be stored on or placed against the inverter.
3. Installation
To meet relevant codes and standards, the Solis three phase inverter line is
equipped with protective circuitry and controls.
Anti-Islanding Protection:
Islanding is a condition where the inverter continues to produce power even when the grid
is not present. Circuitry, along with firmware, has been designed to determine if the grid is
present by adjusting the output frequency of the inverter. In the case of a 60Hz resonant
system where the inverter is partially isolated from the grid, the inverter programming can
detect if there is a resonant condition or if the grid is actually present. It can also
differentiate between inverters operating in parallel and the grid.
2.4 Protection Circuitry and Controls
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.
500mm
500mm
500mm
500mm
1000mm

≤15°
.11..10.
3.1.1.1 Examples of correct and incorrect installations
3.1.2 Other environmental considerations
3.1.2.1 Consult technical data
Consult the specifications section (section 9) for additional environmental conditions
(protection rating, temperature, humidity, altitude, etc.).
3.1.2.2 Vertical wall installation
This model of Solis inverter should be mounted vertically (90 degrees or
backwards 15 degrees) .
NEMA4X
3. Installation 3. Installation
Figure 3.2 Recommended Installation locations
3.1.2.5 Flammable substances
Do not install near flammable substances. Maintain a minimum distance of three (3) meters
(10 feet) from such substances.
3.1.2.6 Living area
Do not install in a living area where the prolonged presence of people or animals is expected.
Depending on where the inverter is installed (for example: the type of surface around the
inverter, the general properties of the room, etc.) and the quality of the electricity supply, the
sound level from the inverter can be quite high.
3.2 Product handling
Figure 3.3 Handles used to move the inverter shown circled in red
3.1.2.4 Air circulation
Do not install in small, closed rooms where air cannot freely circulate. To prevent overheating,
always ensure that the air flow around the inverter is not blocked.
Please review the instruction 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 3.3).
2. Two people are required to remove the inverter from the shipping box. Use the handles
integrated into the heat sink to remove the inverter from the carton (see Figure 3.4).
3.1.2.3 Avoiding direct sunlight
Installation of the inverter in a location exposed to direct sunlight should to be avoided.
Direct exposure to sunlight could cause:
● Power output limitation (with a resulting decreased energy production by the system).
● Premature wear of the electrical/electromechanical components.
● Premature wear of the mechanical components (gaskets) and user interface.

3. Installation 3. Installation
.13..12.
WARNING
Due to the weight of the inverter, contusions or bone fractures
could occur when incorrectly lifting and mounting the inverter.
When mounting the inverter, take the weight of the inverter into
consideration. Use a suitable lifting technique when mounting.
3.3 Mounting the Inverter
Figure 3.4 Inverter handles
The inverter can be mounted to the wall or metal array racking. The mounting holes should be
consistent with the size of the bracket or the dimensions shown in Figure 3.5.
Figure 3.5 Inverter wall mounting
1093
1024
Φ11
21*11
626
521
1020
Refer to figure 3.6 and figure 3.7 Inverter shall be mounted vertically.
The steps to mount the inverter are listed below.
1. Refer to Figure 3.6, drill holes for mounting screws based on the hole diameter of
bracket using a precision drill keeping the drill perpendicular to the wall.
Max depth is 90mm.
2. Make sure the bracket is horizontal. And the mounting holes (in Figure 3.6) are marked
correctly. Drill the holes into wall at your marks.
3.3.1 Wall mounting
3. Use the suitable mounting screws to attach the bracket on the wall.
Figure 3.7 Install the inverter
4. Lift the inverter and hang it on the bracket, and then slide down to make sure they
match perfectly.
Figure 3.6 Inverter wall mounting
Bracket
Suitable mounting screws
Figure 3.8 Fix the inverter
5. . Use screws in the packaging to fix the inverter to the mount bracket
unit:mm

3. Installation 3. Installation
.15..14.
× ×
3.3.2 Rack mounting
1. Select a location for the inverter
With an NEMA4X protection rating,the inverter can be installed both outdoors and indoors.
When the inverter is running, the temperature of the chassis and heat sink will be higher,
Do not install the inverter in a location that you accidentally touch.
Do not install the inverter in a place where it is stored in a flammable or explosive material.
2. Installation angle
Please install the inverter vertically. If the inverter cannot be mounted vertically, it may
be tilted backward to 15 degrees from vertical.
√
Vertical ≤15°
√
Backward
Figure 3.9 Correct installation Angle
Figure 3.10 Wrong installation Angle
Inverted
Leaning
forward
The steps to mounted to the rack are listed below:
12.5mm
3. Install mounting plate
1) Remove the bracket and fasteners from the packaging. Mark the position for hole,
drilling according to the hole positions of the bracket.
Figure 3.11 Mark the position for hole
2) Drill the marked holes. It is recommended to apply anti-corrosive paint at the hole for
corrosion protection.
Figure 3.12 Drill hole

3. Installation 3. Installation
.17..16.
4) Lift the inverter above the bracket and then slide down to make sure they match perfectly.
Figure 3.13 Construction bolt
Figure 3.14 Mount the inverter
3) Align the mounting plate with the holes, Insert the combination bolt (M10X40)through the
mounting plate into the hole. Secure the bracket to the metal frame firmly with the supplied
fastener. Torque the nut to 36FT-LB (35NM).
3.4 Electrical Connections
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. Connect the inverter to the grid.
4. Assemble PV connector and connect to the Inverter.
Inverter design uses PV style quick-connect terminal. The top cover needn't be opened
during DC electrical connection. The labels located the bottom of the inverter are described
below in table 3.1. All electrical connections are suitable for local or national standard.
Table 3.1 Electrical connection symbols
Parts Connection Cable size Torque
DC terminal
Ground terminal
Grid terminal
RS-485 terminal
RJ45 terminal
COM terminal
PV strings
AC ground
Grid
Communication cable
Communication cable
Wi-Fi/Cellular stick
Network cable
NA
0.6N.m
NA
NA
DC surge protection
device NA NANA
NA
10-20N.m
10-12N.m
4-6mm²
16-25mm²
50-185mm²
0.2-1.5mm²

3. Installation 3. Installation
.19..18.
D
C
Grounding screw
Figure 3.16 Strip wire
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.
Figure 3.17 Fixed cable
For improving anti-corrosion performance,
after ground cable installed, apply silicone or paint.
Important:
6) Connect the grounding cable to the grounding point on the heat sink, and tighten the
grounding screw, Torque is 10-12Nm(see figure 3.17).
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 3.16).
3.4.1 Grounding
2) Prepare OT terminals: M10.
To effectively protect the inverter, two grounding methods must be performed.
Connect the AC grounding cable (Please refer to section 3.4.3)
Connect the external grounding terminal.
1) Prepare the grounding cable: recommend to use the outdoor copper-core cable. The
grounding wire should be at least half size of the hot wires.
To connect the grounding terminal on the heat sink, please follow the steps below:
A
B
Important:
3) Strip the ground cable insulation to a suitable length(see Figure 3.15).
Figure 3.15 Suitable length
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.
B (insulation stripping length) is 2mm~3mm longer than A (OT cable
terminal crimping area) 2mm~3mm.

3. Installation 3. Installation
.21..20.
Figure 3.22 Multimeter measurement Figure 3.23 Connect the DC
Connectors to the Inverter
Figure 3.20 Crimp the contact pin to the wire Figure 3.21 Connector with Cap nut Screwed on
Crimping plier
+
-
Please use appropriate DC cable for PV system.
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 3.18)
3. Crimp the contact pin to the wire using a proper wire crimper. (see Figure 3.20)
2. Insert the wire into the connector cap nut and contact pin. (see Figure 3.19)
4. Insert metal connector into top of connector, and tighten nut with torque 3-4 Nm
(see figure 3.21).
3.4.2 Connect PV side of inverter
Please see table 3.1 for acceptable wire size for DC connections.Wire must be copper only.
WARNING
DO NOT connect the PV array positive or PV array negative cable to ground.
This can cause serious damage to the inverter!
WARNING
MAKE SURE the polarity of the PV array output conductors matches
the DC- and DC+ terminal labels before connecting these conductors
to the terminals of the inverter.
WARNING
Before connecting the inverter, make sure the PV array open circuit
voltage is within the limit of the inverter. Otherwise, the inverter could
be damaged.
Maximum 1500Vdc for Solis-125K-EHV-5G
5. Measure PV voltage of DC input with multimeter, verify DC input cable polarity
(see figure 3.22), and ensure each string voltage is in range of inverter operation.
Connect DC connector with inverter until hearing a slight clicking sound indicating
successful connection. (see figure 3.23)
Figure 3.18 Disassemble the Connector Cap nut Figure 3.19 Insert the Wire into the
Connector Cap nut and contact pin
Requirements for the PV modules per MPPT input:
● All PV modules must be of the same type and power rating.
● All PV modules must be aligned and tilted identically.
● The open-circuit voltage of the PV array must never exceed the maximum input voltage of
the inverter, even at the coldest expected temperature. (see Section 9 “Specifications” for
input current and voltage requirements)
● Each string connected to a single MPPT must consist of the same number of series-
connected PV modules.
Caution:
If DC inputs are accidently reversely connected or inverter is faulty or not
working properly, it is NOT allowed to turn off the DC switch as it will damage
the inverter and even leads 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 reduces 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.
Please note that any damages due to wrong operations are not covered in
the device warranty.

3. Installation 3. Installation
.23..22.
3.4.3 Connect grid side of inverter
1). Connect the three (3) AC conductors to the three (3) AC terminals marked “L1”, “L2” and
“L3”.Refer to local code and voltage drop tables to determine the appropriate wire size
and type.
2). Connect the grounding conductor to the terminal marked “PE” (protective earth, the
ground terminal).
Over-Current Protection Device (OCPD) for the AC side
To protect the inverter's AC connection line, we recommend installing a device for protection
against over-current and leakage, with the following characteristics noted in Table 3.2:
WARNING
An over-current protection device must be used between the inverter and
the grid.
NOTE
Use AL-CU transfer (bi-metallic) terminal oranti-oxidantgreasewith
aluminumcablesandterminals.
Table 3.2 Rating of grid OCPD
Inverter Rated
voltage(V) Rated output current (Amps) Current for protection
device (A)
3.4.3.1 Connecting the inverter to the utility grid
All electrical installations must be carried out in accordance with the local standards and
the National Electrical Code® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1.
The AC and DC electric circuits are isolated from the enclosure. If required by section 250
of the National Electrical Code®, ANSI/NFPA 70, the installer is responsible for grounding
the system.
The grid voltage must be within the permissible range. The exact operating range of the
inverter is specified in Section 9 “Specifications”.
3.4.2.1 DC connection high voltage danger notice
CAUTION
RISK OF ELECTRIC SHOCK
Do not touch an energized DC conductor. There are high voltages present when PV modules
are exposed to light causing a risk of death due to an electric shock from touching a DC
conductor!
Only connect the DC cables from the PV module to the inverter as described in this manual.
CAUTION
POTENTIAL DAMAGE TO THE INVERTER DUE TO OVERVOLTAGE
The DC input voltage of the PV modules must not exceed the maximum rating of the inverter.
(see Section 9 “Specifications”)
Check the polarity and the open-circuit voltage of the PV strings before connecting the DC
cables to the inverter.
Confirm proper string length and voltage range before connecting DC cable to the inverter.
3.4.2.2 Recommended fusing section for each channel or connection
Each DC string should be directly connected to the inverter.
Thesizingofthestringfusesmusttakeintoaccountthetwofollowingconditions:
1). The nominal current rating of the selected fuse must not exceed the maximum fuse
rating of the PV panels. Please refer to the applicable specifications for this value.
2). The fuse rating is determined based on the PV panel string current and on the sizing
guidelines provided by the panel manufacturer or the local electrical code. In addition,
the maximum fuse rating must not exceed the maximum input current of the inverter.
Figure 3.24 Fuse holders
Solis-125K-EHV-5G 120600 150

3. Installation
.25..24.
3.4.3.2 Wiring procedure
CAUTION
RISK OF ELECTRIC SHOCK. Prior to starting the wiring procedure, ensure
that the three-pole circuit breaker is switched off and cannot be reconnected.
NOTE
Damage or destruction of the inverter's electronic components due to
moisture and dust intrusion will occur if the enclosure opening is enlarged.
CAUTION
Risk of fire if two conductors are connected to one terminal. If a
connection of two conductors to a terminal is made, a fire can occur.
NEVER CONNECT MORE THAN ONE CONDUCTOR PER TERMINAL.
NOTE
Use M10 crimp terminals to connect to the inverter AC terminals.
Figure 3.25 Strip AC cable
PE
L
｝
S2 S1
NOTE:
S2 (insulation stripping length) is 2mm-3mm longer than S1.
(OT cable terminal crimping area)
3) Leave the AC breaker disconnected to ensure it does not close unexpectedly.
4) Remove the 4 screws on the inverter junction box and remove the junction box
cover (Figure 3.27).
2) Strip the insulation of the wire past the cable crimping area of the OT terminal,
then use a hydraulic crimp tool to crimp the terminal. The crimped portion of the terminal
must be insulated with heat shrinkable tube or insulating tape.
1) Strip the end of AC cable insulating jacket about 300mm then strip the end of each wire.
(as shown in figure 3.25)
The steps to assemble the AC grid terminals are listed as follows:
3. Installation
NOTE:
If chosing aluminum alloy cable, you must use copper aluminum transfer
terminal in order to avoid direct contact between copper bar and Aluminum
alloy cable. (Please select a copper aluminum transfer terminal based on
your cable specification).
Figure 3.26 Copper aluminum transfer terminal
Figure 3.27 Remove the junction box cover
5) Insert the cable through the nut, sheath, and AC terminal cover. Connect the cable to
the AC terminal block in turn, using a socket wrench.Tighten the screws on the terminal block.
The torque is 10~20Nm (as shown in Figure 3.28).
Figure 3.28 wiring
L1 L2 L3
PE
L1 L2 L3
Copper terminal of cable
flat gasket
spring washer
nut

4. Comm. & Monitoring 4. Comm. & Monitoring
.27..26.
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 and Ethernet daisy chain configuration.
Internet
Datalogger
PC monitoring
PV Strings
PV Strings
PV Strings
Inverter
Inverter
Inverter
Figure . Multiple inverter monitoring system4 1
DC
Rs485/Ethernet
There are 5 communication terminals on Solis 125kW inverter. COM1 is a
4-pin connector reserved for WiFi/Cellular datalogger. COM2 and COM3 are RS485
connection between inverters and both RJ45 and Terminal block are provided for use .
COM4 and COM5 are the Ethernet connection via RJ45.
RS-485 communication supports two connections methods: RJ45 connectors/ Terminal
board.(Default Modbus RTU)
1. RS-485 communication through RJ45 connector
RJ45 port connection (See figure 4.2).
CAT 5E outdoor rated (cable outer diameter<9mm, internal resistance≤1.5Ω/10m) and
shielded RJ45 connectors are recommended.
4.1 RS485 communication
485-IN
485-OUT
Figure 4.2 RJ45 port
Ethernet IN
Ethernet OUT
Figure 4.3 Strip the insulation layer and connect to RJ45 plug
Correspondence between the
cables and the stitches of plug
Pin 1: white and orange ; Pin 2: orange
Pin 3: white and green； Pin 4: blue
Pin 5: white and blue； Pin 6: green
Pin 7: white and brown； Pin 8: brown
Pin 1 with 4 and 2 with 5 are
used for communication connection
Pin 1 and 4 are connected with RS485+A
Pin 2 and 5 are connected with RS485 - B
1--8
RJ45 plug RJ45terminal
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
R S 4 8 5 + A R S 4 8 5 - B
Use the network wire stripper to strip the insulation layer off the communication cable.
Using the standard wire sequence referenced in TIA/EIA 568B, separate the wires in the cable.
Use a network cable tool to trim the wire. Flatten the wire in the order shown in figure 4.3.

.29..28.
4. Comm. & Monitoring 4. Comm. & Monitoring
f. Please insert terminal board into terminal block, then will be clamped automatically.
c. Insert the cable through the cap nut for each port. COM2(RS485 IN) COM3(RS485 OUT).
d. Pull down the terminal block on user interface board(See Figure 4.5).
e. Firstly insert cable into terminal board, then tighten the screws (dotted area) clockwise
with slotted screwdriver; if user need to pull out cable, screws rotates anticlockwise with
slotted screwdriver(See Figure 4.5).
4.2 Ethernet communication
≈
Inverter 1 Inverter 2 Inverter n
Ethernet IN | OUT
Ethernet
Router Internet
Ethernet IN | OUT Ethernet IN | OUT
Figure 4.7
Use the RJ45 connectors to perform the Ethernet communication which supports the
Solis Monitoring Platform and Modbus TCP protocol(Both By Default).
NOTE:
When creating daisy chain for Ethernet communication, all inverters' slave
address must be set to 01.
CAT 5E outdoor rated (cable outer diameter<9mm, internal resistance≤1.5Ω/10m) and
shielded RJ45 connectors are recommended.
If the product is connected to a local network through a router, the product will be assigned
an IP address automatically, by the DHCP server.
Daisy chain is required for multiple inverter communication through ethernet as shown below.
Address: 01Address: 01 Address: 01
NOTE:
Laptop is required for onsite Ethernet communication commissioning.
If the router doesn't support automatic IP address, use an Ethernet cable to
connect the module and your laptop. Change the Laptop's IP address as
10.10.100.253 and then Use the web browser to enter 10.10.100.254 and
define your own IP address as in Figure 4.8.
Recommended web browser: Internet Explorer or Chrome.
2. RS-485 communication through terminal board.
Figure 4.4
124 3
The cross sectional area of the cable wire for terminal board connection should be 0.2-1.5mm.
The outer diameter of the cable may be 5mm-10mm.
NO.Port definition Description
1
2
3
4
RS485A1,RS485 differential signal+
RS485B1,RS485 differential signal-
RS485A2,RS485 differential signal+
RS485B2,RS485 differential signal-
RS485A1 IN
RS485B1 IN
RS485A2 OUT
RS485B2 OUT
Connection of Terminal board.
a. Strip the insulation and shield to a suitable length. Use diagram below as a guide.
(in Figure 4.5).
b. Remove the cap nut from the waterproof cable glands labeled at the bottom of the inverter.
Remove the plug from the fitting. (in Figure 4.6).
8mm
30mm
Figure 4.5 Figure 4.6
System
Work mode
Network
Manual
Restart
Reset
Upgrade
Work mode settings
Work mode
Protocol type
IP address of the device
Port of the device
Local + Remote
ModBus TCP
192.168.3.50
30003
Save
Figure 4.8 (Example Only)

4. Comm. & Monitoring 4. Comm. & Monitoring
2. Modbus TCP
The Ethernet module has a default TCP protocol.
After the daisy chain connection is finished, the TCP server IP of each module are assigned
by the DHCP automatically. The port is self-defined, default is 30003.
1.Monitoring Platform
After the daisy chain connection is finished, please use the SN/QR code on the board to
register the system on Solis monitoring website or APP.
Figure 4.9
3. Ethernet Module LED Indicators
D1 Red LED: Indicator between module and inverter.
Constantly ON indicates normal connection.
Blinking indicates it is trying to connect.
OFF indicates connection failed.
Constantly ON but blinking sometimes indicates it is transferring data between inverter.
D1 and D2 slowly blinking alternately or slowly blinking synchronously indicates abnormal
network issue.
D1 and D2 both OFF with D3 ON indicates the module is initializing.
D2 Red LED: Indicator between module and server.
Constantly ON indicates normal connection.
Blinking indicates it is trying to connect.
OFF indicates connection failed.
Constantly ON but blinking sometimes indicates it is transferring data between the server.
D3 Green LED: Module power light.
Constantly ON indicates power supply normal.
OFF indicates power supply abnormal.
D1D2D3
Figure 4.10
NOTE: Laptop IP Configuration
Step 1: With a network cable to connect the computer and LAN Stick,
right-click the computer icon in the lower right corner of the computer,
enter the “network and sharing center”.
Step 2: Select the “local connection” options.
Step 3: Left double-click "Properties" into the "local connection status".
Step 4: Left double-click: "Internet Protocol version 4 (TCP / Ipv4).
Step 5: While the computer's IP is configured as a static IP (as shown below).
Internet Protocol Version 4(TCP/IPv4)
Step 2 Step 3
Step 4 Step 5
.31..30.

5. Commissioning 5. Commissioning
.33..32.
3). Use the UP/DOWN keys to highlight the SELECT STANDARD option. Press enter to
select.
Figure 5.4
4). Select the grid standard for the country of installation.
YES=<ENT> NO=<ESC>
Standard:G99
Press the UP or DOWN key to select the standard. Press the ENTER key to confirm the setting.
Press the ESC key to cancel changes and return to the previous menu.
5.3 Setting a custom grid standard
WARNING
● Failure to set the correct grid standard could result in improper operation
of the inverter, inverter damage or the inverter not operating at all.
Only certified personnel should set the grid standard.● Only set the grid configuration that is approved by your location and ●
national grid standards.
1). Please refer to section 6.7 “Advanced Settings” for procedures to create a custom grid
configuration for User-Def menu option.
Figure 5.3
Select Standard
Grid ON/OFF
5.1 Selecting the appropriate grid standard
5.1.1 Verifying grid standard for country of installation
Solis inverters are used worldwide and feature preset standards for operating on
any grid. Although the grid standard is set at the factory, it is essential the grid standard be
verified for the country of installation before commissioning.
The menu for changing the grid standard or for creating a custom standard is accessible as
described in Section 6.7 and below.
WARNING
Failure to set the correct grid standard could result in improper operation
of the inverter, inverter damage or the inverter not operating at all.
5.2 Changing the grid standard
5.2.1 Procedure to set the grid standard
NOTE
This operation is for service technicians only. The inverter is customized
according to the local grid standard before shipping. There should be no
requirement to set the standard.
NOTE
The “User-Def” function can only be used by the service engineer.
Changing the protection level must be approved by the local utility.
1). From the main screen on the display, select ENTER. There are 4 sub-menu options,
use the UP/DOWN arrows to highlight ADVANCED SETTINGS. Press enter to select.
2). The screen will show that a password is required. The default password is "0010",
press the DOWN key to move cursor, press the UP key to change the highlighted digit.
Figure 5.1
Information
Settings
Figure 5.2
YES=<ENT> NO=<ESC>
Password:0000

5. Commissioning
.35..34.
5. Commissioning
5.4 Preliminary checks
Verify DC connections.
1). Lightly tug on each DC cable to ensure it is fully captured in the terminal.
2). Visually check for any stray strands that may not be inserted in the terminal.
3). Check to ensure the terminal screws are the correct torque.
WARNING
High Voltage.
AC and DC measurements should be made only by qualified personnel.
5.4.1 DC Connections
Verify AC connections.
1). Lightly tug on each AC cable to ensure it is fully captured in the terminal.
2). Visually check for any stray strands that may not be inserted in the terminal.
3). Check to ensure the terminal screws are the correct torque.
5.4.2 AC Connections
5.4.3 DC configuration
5.4.3.1 VOC and Polarity
To measure the open circuit voltage (VOC) and polarity of the individual strings, perform
the following steps:
5.4.3.1.1 Check string voltage
1). Ensure that all fuse holders are open.
2). Connect the positive lead of the meter to the positive string cable of the string under
test. Connect the negative lead of the meter to the negative string cable of the
string under test.
WARNING
When the fuse holders are closed, parallel strings on the same MPPT are
connected together. If there is a voltage difference between the parallel
strings such as different string lengths, current will flow between the
parallel strings. Opening and closing the fuse holder in this instance is the
same as opening and closing under load. Damage to equipment and /or
injury to personnel may occur.
Verify DC configuration by noting the number of panels in a string and the string voltage.
Measure VOC, and check string polarity. Ensure both are correct and VOC is in specification.
3). Measure the voltage present between the positive and negative wires of each string.
If the open circuit voltage of the string is near the maximum value accepted by the
inverter, verify the string length. Low ambient temperatures cause an increase in
the string voltage causing potential damage to the inverter.
4). Check the polarity of the string. All digital meters have a negative (“-“) indicator that
indicates when a voltage is negative; in this case a string connected in reverse
polarity.
WARNING
Input voltages higher than the maximum value accepted by the inverter
(see “Specifications” in Section 9) may damage the inverter.
Although Solis inverters feature reverse polarity protection,
prolonged connection in reverse polarity may damage these protection
circuits and/or the inverter.
5.4.3.2 Leakage to ground
5.4.3.2.1 Detection of leakage to ground
Solis inverters are transformer-less and do not have an array connection to ground.
Any measurement of a fixed voltage between ground and either the positive or negative string
wiring indicates a leakage (ground fault) to ground and must be corrected prior to energizing
the inverter or damage to the inverter may result.
To measure leakage to ground, perform the following steps:
1). Ensure that all fuse holders are open.
2). Ensure that neither negative nor positive DC conductors are connected to the ground
strip.
3). Measure each string positive connection to ground.
4). Measure each string negative connection to ground.
5). Verify the voltage is “floating”, not a consistent voltage to ground. Make sure you notice
the units of the measurement. mV is not the same as V.
6). Do not close the fuse holder and connect the strings if a leakage to ground has been
detected. Improper operation and damage to the inverter may result.
Once all DC tests have been completed, close the fuse holders.
Measure leakage to ground to check for a DC ground fault.

6. Normal operation
.37..36.
5. Commissioning
Measure VAC and verify voltage is within local grid standards.
1). Measure each phase to ground (L-G).
5.4.4.1 Measure VAC and frequency
2). Measure phases to the other phases in pairs (L-L). PH A to PH B, PH B to PH C and
PH C to PH A.
3). If the meter is equipped, measure the frequency of each phase to ground.
4). Ensure each measurement is within local grid standards and the inverter specifications
as noted in Section 9 “Specifications”.
A phase rotation test is recommended to ensure the phases have been connected in the
appropriate order. Solis inverters do not require aspecific phase rotation connection.
However, the local utility may require a specific phase rotation or a record of the phase
configuration of the installation.
5.4.4.2 Phase rotation test
Verify AC configuration.
5.4.4 AC configuration 6.1 Start-up procedure
To start-up the inverter, it is mandatory that the steps below are followed in the exact order
outlined.
1). Ensure the commissioning checks in Section 5 have been performed.
2). Switch the AC switch ON.
3). Switch the DC switch ON. If the PV array (DC) voltage is higher than the inverter's
start-up voltage, the inverter will turn on. The red DC POWER LED and LCD will be
continuously lit.
4). Solis inverters are powered from the DC side. When the inverter detects DC
power that is within start-up and operating ranges, the inverter will turn on. After turn-
on, the inverter will check internal parameters, sense and monitor AC voltage, hertz
rate and the stability of the supply grid. During this period, the green OPERATION LED
will flash and the LCD screen will show INITIALIZING. This tells the operator that the
inverter is preparing to generate AC power.
5). After the locally mandated delay (300 seconds for IEEE-1547 compliant inverters), the
inverter will start generating AC power. The green OPERATION LED will light
continuously and the LCD screen will show GENERATING.
CAUTION
The inverter's surface temperature can reach up to 75℃ (167⁰ F). To
avoid risk of burns, do not touch the surface when the inverter is in
the operational mode. Additionally, the inverter must be installed
out of the reach of children.
6.2 Shutdown procedure
To stop the inverter, it is mandatory that the steps below are followed in the exact order outlined.
1). Switch AC switch OFF.
2). Wait approximately 30 seconds (during this time, the AC side capacitors are dissipating
energy). If the inverter has DC voltage above the start-up threshold, the red POWER
LED will be lit. Switch the DC switch OFF.
3). Confirm all LED's switch OFF (~one (1) minute).
CAUTION
Although the inverter DC disconnect switch is in the OFF position and all
the LED's 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.

6. Normal operation6. Normal operation
.39..38.
I_DC01: +05.0A
I_DC02: +04.9A
...
I_DC20: +05.2A
VPV_Total: Shows input voltage total.
IPV_Total: Shows input current total.
Table 6.1 Information list
Status: Generating
Power: 1488W
Grid Frequency
F_Grid 50.06Hz
Total Energy
0258458 kwh
This Month: 0123kwh
Last Month: 0123kwh
Today: 15.1kwh
Yesterday: 13.5kwh
10 sec
10 sec
10 sec
10 sec
10 sec
10 sec
Status: Shows instant status of the Inverter.
Power: Shows instant output power value.
F_Grid: Shows the grid's frequency value.
Total generated energy value.
This Month: Total energy generated this month.
Last Month: Total energy generated last month.
Today: Total energy generated today.
Yesterday: Total energy generated yesterday.
Display Duration Description
Inverter SN
00000000000000
10 sec
Display series number of the inverter.
10 sec
V_C: Shows the grid's voltage value.
I_C: Shows the grid's current value.
10 sec V_A: Shows the grid's voltage value.
I_A: Shows the grid's current value.
Rea_Power: 000Var
App_Power: VA 10 sec Rea_Power: Shows the reactive power of the inverter.
App_Power: Shows the apparent power of the inverter.
Work Mode: Volt-watt
DRM NO.:08 10 sec
10 sec
Work Mode: Shows current working mode.
DRM NO.: Shows DRM Number.
I_DC01 : Shows input 01 current value.
I_DC02 : Shows input 02 current value.
...
I_DC20 : Shows input 20 current value.
VPV_Total: 1000.0V
IPV_Total: +99.0A
V_A: 345.7V
I_ A: 109.0A
V_C: 345.0V
I_ C: 109.8A
In normal operation, LCD screen alternatively shows inverter power and operation status
(see Figure 6.1). The screen can be scrolled manually by pressing the UP/DOWN keys.
Pressing the ENTER key gives access to Main Menu.
5 sec
Start
Power 110000W
01-01-2019 12:04
Status: Generating
01-01-2019 12:04
Information
Settings
Advanced Info.
Advanced settings
UP/DOWN
UP/DOWN
UP/DOWN
UP/DOWN or
auto-scroll
(10 sec)
Pressing the
ENTER key
gives access to
the main menu.
Pressing the
ESC key
calls back the
previous menu.
Main Menu
Figure 6.1 Operation Overview
6.3 Main Menu
There are four submenus in the Main Menu (see Figure 6.1):
1. Information
2. Settings
3. Advanced Info.
4. Advanced Settings
The Solis three Phase 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.
6.4 Information