SOLIS 75K-5G-PRO User manual

Installation and Operation Manual
Solis Three Phase Inverter
Solis-(75-110)K-5G-PRO
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.
Ver 1.2

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 Notice for Disposal
3. Installation
3.1 Environmental considerations
3.1.1 Select a location for the inverter
3.1.2 Installation environment requirements
3.2 Product handling
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3.3 Mounting the Inverter
4
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12
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13
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3.3.1 Wall mounting
15
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7.2.1 Lock screen
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
27
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3.4.3 Connect grid side of inverter
31
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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
35
35
35
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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
35
35
36
37
37
37
37
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5.4.4 AC configuration 38
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6. Start and Shutdown
6.1 Start-up procedure
6.2 Shutdown procedure
39
39
39
7.1 Main Menu 40
40
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7.2 Information ………………………………………………………………………………………………………………………
4.1 RS485 Communication 31
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7. Normal operation 40
4.2 PLC Communication ……………………………………………………………………………………………………… 33
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7.3.1 Set Time 42
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7.3 Settings 42
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7.3.2 Set Address 42
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7.4 Advanced Info - Technicians Only 43
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7.4.1 Alarm Message 43
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7.4.2 Running Message 43
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7.4.3 Version 44
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7.4.4 Daily Energy 44
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7.4.5 Monthly Energy 44
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7.4.6 Yearly Energy
45
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7.4.7 Daily Records
45
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7.4.8 Communication Data
45
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7.4.9 Warning Message
45
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7.5 Advanced Settings - Technicians Only 46
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7.5.1 Selecting Standard 46
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7.5.2 Grid ON/OFF 47
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7.5.3 Clear Energy 47
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7.5.4 Reset Password 48
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7.5.5 Power control 48
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7.5.6 Calibrate Energy 48
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7.5.7 Special Settings
49
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7.5.8 STD Mode settings
49
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7.5.9 Restore Settings
50
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7.5.10 HMI Update
50
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7.5.11 External EPM Set
50
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7.5.12 Restart HMI
51
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7.5.13 Debug Parameter
51
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7.5.15 DSP Update 52
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7.5.16 Compensation Set 52
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7.5.17 I/V Curve
52
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7.5.14 Fan Test
51
8. Maintenance ……………………………………………………………………………………………………………………………………… 55
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8.2 Fan Maintenance 56
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8.1 Anti-PID Function 55
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7.6 AFCI function 54
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7.6.1 Enable the AFCI function 54
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7.6.2 Arc Fault 54
9. Troubleshooting ……………………………………………………………………………………………………………………………… 57
10. Specifications …………………………………………………………………………………………………………………………………… 60
4.3 Logic interface connection ………………………………………………………………………………………… 34
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8.3 Smart O&M 56

.5.
1. Introduction
Figure 1.1 Front view
Figure 1.2 Bottom view
1.1 Product Description
1. Introduction
1.2 Unpacking and storage
The inverter ships with all accessories in one carton.
When unpacking, please verify all the parts listed below are included:
.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-80K-5G-PRO, Solis-100K-5G-PRO, Solis-110K-5G-PRO
The following one model is specially supplied for Brazil market:
Solis-75K-5G-PRO
Buttons
LED
LCD Screen
Vent COM
DC Inputs
DC Switch AC Output
Inverter packing list
Part #
1
2
Description
Inverter
Mounting Bracket
Number
1
1
Hexagon bolt M6*12
Remarks
3
4
5
Fastening screw 2
DC connector
User manual 1
123
4
5
12 for (75-80)K
16 for (100-110)K
Manual
AC Switch

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 - 70℃ and humidity should be between 0 to 95%, non-condensing.
● Do not stack more than four (4) inverters high on a single pallet.
● 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
4
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 75 . 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.
5). The inverter can only be used for industrial.
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 75℃.
● The inverter is designed to work in an ambient temperature range between -30℃ to 60℃.
● 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
2.4 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 .
500mm
500mm
500mm
500mm
1000mm
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.

.11..10.
3.1.1.1 Examples of correct and incorrect installations
3. Installation 3. Installation
Figure 3.2 Recommended Installation locations
3.2 Product handling
Figure 3.3 Handles used to move the inverter shown circled in red
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).
≤15°
IP66
3.1.1.1 Wall and Framework Installation
● The installation of the inverter needs to consider the local weather conditions, and take
measures such as rain and snow protection if necessary.
● The installation angle between inverter and wall should be less than 15°.
● Please ensure the distance between the waterproof joint and the installed roof is greater
than the local maximum snow thickness. The distance should be larger than the 300mm.
● Bind and fix the cables 300~350mm away from the DC and AC terminals, communication
waterproof connectors to prevent the cables from sagging and causing the waterproof
connectors to loosen.
Tilt angle ≥15°
Ground clearance ≥300mm
3.1.2 Installation environment requirements
● Avoid Direct Sunlight
Installation of the inverter in a location exposed to direct sunlight should be avoided.
Direct exposure to sunlight could cause: Inverter temperature rises.
Output power limitation (Leads to a reduction of system generation).
● Please ensure the ventilation and well heat dissipation
Do not install the inverter in a small, closed room where air cannot freely circulate.
To prevent overheating, please ensure that the air flow around the inverter is not blocked.
● Do not install the inverter near flammable substances
Do not install the inverter near flammable substances. Please ensure the distance between
inverter and those flammable objects is larger than 3 meters.
● Avoid installation in living areas
Do not install the inverter in the living area where the prolonged presences of people or
animals are expected. There may be produced some noises when the inverter is operating,
so a living area installation is not recommended.
Regarding other environment conditions,(for example: Ingress Protection, Temperature,
Humidity, and Altitude, etc.), please refer to 10 Specification Part.

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
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 3.6 Inverter wall mounting for (100-110)K
unit:mm
356
Φ11
1129
Figure 3.5 Inverter wall mounting for (75-80)K
unit:mm
Φ11
958
369
Figure 3.7 Inverter wall mounting for (100-110)K (both with AC switch)
unit:mm
356
Φ11
1199
Figure 3.4 Inverter handles

3. Installation 3. Installation
.15..14.
3.3.2 Rack mounting
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.
The steps to mounted to the rack are listed below:
1. Select a location for the inverter
With an IP66 protection rating,the inverter can be installed both outdoors and indoors.
×
Leaning
forward
Upside
down
≤15°
Backward
Refer to figure 3.8 and figure 3.9 Inverter shall be mounted vertically.
The steps to mount the inverter are listed below.
1. Refer to Figure 3.8, 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. M ake sure the bracket is horizontal. And the mounting holes (in Figure 3.8) 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 3.9 Install the inverter
4. Lift the inverter and hang it on the bracket, and then slide down to make sure they
match perfectly.
Figure 3.8 Inverter wall mounting
Figure 3.10 Fix the inverter
5. . Use screws in the packaging to fix the inverter to the mount bracket
Mounting Bracket
Mounting screws
Torque：30-35NM
Torque：2-3NM
√ √
Vertical
×

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
DC surge protection
device NA
4-6mm²
25-50mm²
50-240mm²
0.3-4mm²
Network Cable
NA
0.6N.m
NA
NA
NA NA
NA
10-20N.m
10-12N.m
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
12 .5m m

3. Installation 3. Installation
.19..18.
D
C
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) .
Grounding Screw
Torque：10-12NM

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
+
-
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.
3. Crimp the contact pin to the wire using a proper wire crimper.
2. Insert the wire into the connector cap nut and contact pin.
4. Insert metal connector into top of connector, and tighten nut with torque 3-4 Nm.
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.
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
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.
Crimping plier
WARNING
Please use the original DC MC4 terminals, otherwise the unqualified
DC connectors may cause damages to the inverter.
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. Otherwise it may
cause 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 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.
* In order to completely 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.
Cable type
Outside diameter of
cable（mm）
4.0~6.0
(12~10AWG)
5.5~9.0
Traverse area（mm²）
Range
Industry generic P V cable
（model:PV1-F）
Recommended
value
4.0
(12AWG)
Table 3.2

3. Installation 3. Installation
.23..22.
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 10 “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 Wiring requirement
When cables are used for a long time, the insulation layer may deteriorate or be damaged
due to high temperature etc. If the cable is exposed to the natural environment, it may cause
faults such as short circuit etc. You are advised to route the PV cable through the wave fiber
tube and the bridge to effectively protect the PV cable from damage.
Similar cables should be tied together, and different types of cables should be placed at
least 30mm clearance separately, and they are prohibited from entanglement or crossing.
The cables used in the PV grid -connected power generation system must be firm, good in
insulation, and appropriate specifications.
Requirements for the PV modules per MPPT input:
● All PV modules must be of the same type and power rating.
● Please ensure the PV strings are evenly connected to the inverter and try to utilize all the
MPPT trackers.
● 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 10 “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.
3.4.2.3 String Input Instructions
The (75-80)K inverter has three sets of power modules inside, as shown in the figure below.
In order to achieve the best power generation, we strongly recommend that the three power
modules are evenly connected to the solar panels. (Note: The "evenly" here means that the
difference of the input power between different power modules does not exceed 5%)
PV 1-4 PV 5-8 PV 9-12
If three power modules are indeed required to connect the solar panels unevenly, for a power
module which is connected to four strings, it is necessary to ensure that the power of each PV
string connected under this power module does not exceed 8.5kW to achieve better power
generation performance. In the case that the power difference between each PV string is less
than 10%, the 2 common cases are showing below.
Recommended access scheme for 182mm component of (75-80)K inverter
Case 1
≤8.5≤8.5≤8.5≤8.5kW
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Case 2
≤8.5≤8.5≤8.5≤8.5kW≤8.5≤8.5≤8.5≤8.5kW
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 1 Power Module 2 Power Module 3
NOTE
To achieve the best power generation effect, add components according
to the recommended solution.

3. Installation 3. Installation
.25..24.
The (75-80)K inverter has three sets of power modules inside, as shown in the figure below.
In order to achieve the best power generation, we strongly recommend that the three power
modules are evenly connected to the solar panels. (Note: The "evenly" here means that the
difference of the input power between different power modules does not exceed 5%)
If three power modules are indeed required to connect the solar panels unevenly, for a power
module which is connected to three strings, it is necessary to ensure that the power of each PV
string connected under this power module does not exceed 11.3kW to achieve better power
generation performance. In the case that the power difference between each PV string is less
than 10%, the 2 common cases are showing below.
PV 1-4 PV 5-8 PV 9-12
Case 1
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Case 2
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
≤11.3≤11.3≤11.3kW
≤11.3≤11.3≤11.3kW ≤11.3≤11.3≤11.3kW
Recommended access scheme for 210mm component of (75-80)K inverter
Power Module 1 Power Module 2 Power Module 3
The (100-110)K inverter has four sets of power modules inside, as shown in the figure below.
In order to achieve the best power generation, we strongly recommend that the four power
modules are evenly connected to the solar panels. (Note: The "evenly" here means that the
difference of the input power between different power modules does not exceed 5%)
If four power modules are indeed required to connect the solar panels unevenly, for a power
module which is connected to four strings, it is necessary to ensure that the power of each PV
string connected under this power module does not exceed 8.5kW to achieve better power
generation performance. In the case that the power difference between each PV string is less
than 10%, the 3 common cases are showing below.
Recommended access scheme for 182mm component of (100-110)K inverter
PV 13-16
PV 1-4 PV 5-8 PV 9-12
Case 1
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
≤8.5≤8.5≤8.5≤8.5kW
Case 2
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
≤8.5≤8.5≤8.5≤8.5kW ≤8.5≤8.5≤8.5≤8.5kW
Case 3
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
≤8.5≤8.5≤8.5≤8.5kW ≤8.5≤8.5≤8.5≤8.5kW ≤8.5≤8.5≤8.5≤8.5kW
Power Module 1 Power Module 2 Power Module 3 Power Module 4

3. Installation 3. Installation
.27..26.
The (100-110)K inverter has four sets of power modules inside, as shown in the figure below.
In order to achieve the best power generation, we strongly recommend that the four power
modules are evenly connected to the solar panels. (Note: The "evenly" here means that the
difference of the input power between different power modules does not exceed 5%)
Recommended access scheme for 210mm component of (100-110)K inverter
If four power modules are indeed required to connect the solar panels unevenly, for a power
module which is connected to three strings, it is necessary to ensure that the power of each PV
string connected under this power module does not exceed 11.3kW to achieve better power
generation performance. In the case that the power difference between each PV string is less
than 10%, the 3 common cases are showing below.
PV 13-16
PV 1-4 PV 5-8 PV 9-12
Case 1
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
≤11.3≤11.3≤11.3kW
Case 2
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
Case 3
Power Module 1
(PV 1-4)
Power Module 2
(PV 5-8)
Power Module 3
(PV 9-12)
Power Module 4
(PV 13-16)
≤11.3≤11.3≤11.3kW
≤11.3≤11.3≤11.3kW
≤11.3≤11.3≤11.3kW
≤11.3≤11.3≤11.3kW ≤11.3≤11.3≤11.3kW
Power Module 1 Power Module 2 Power Module 3 Power Module 4
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 3.3:
NOTE
Use AL-CU transfer (bi-metallic) terminal or anti-oxidant grease with
aluminum cables and terminals.
WARNING
An over-current protection device must be used between the inverter and
the grid.
Table 3.3 Rating of grid OCPD
Inverter Rated
voltage(V)
Rated output
current (Amps)
Current for protection
device (A)
Solis-100K-5G-PRO 152.0/144.3
220/380,230/400 200
250Solis-110K-5G-PRO
Solis-80K-5G-PRO
Solis-75K-5G-PRO
150
150
220/380,230/400
220/380,230/400
121.6/115.5
114
167.1/158.8
220/380,230/400
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 10 “Specifications”.

3. Installation 3. Installation
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.
.29..28.
Cable specification
70
38~56
45
Copper-cored cable
Cable outer diameter
(mm)
Traverse cross
sectional area (mm )
2
Range
Recommended
35~240
Range
Recommended
Figure 3.24 Strip AC cable
NOTE
S2 (insulation stripping length) is 2mm-3mm longer than S1.
(OT cable terminal crimping area)
1. Strip the end of AC cable insulating jacket about 300mm then strip the end of each wire.
S2
PE
N
L
S1
300MM
Table 3.4
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.
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).
Copper terminal of cable
flat gasket
spring washer
nut
Figure 3.25 Copper aluminum transfer terminal
L1 L2 L3 N
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.
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.
Figure 3.26 Remove the junction box cover

4. Comm. & Monitoring
Internet
Datalogger
PC monitoring
Figure . Multiple inverter monitoring system4 1 (RS485)
DC RS485
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 daisy chain configuration.
There are 5 communication terminals on the inverters.
COM1 is a 4-pin connector reserved for WiFi/Cellular datalogger.
COM2 - COM3 are used for RS485 communication between inverters.
Both RJ45 and terminal block are provided for use.
COM4 or COM5 can be used for DRM connection.
Detailed connection please refer to 4.2 section.
4.1 RS485 Communication
RS-485 communication supports two connections methods: RJ45 connectors/ Terminal board
1. RS-485 communication through RJ45 connector
RJ45 port connection (See figure 4.2).
CAT 5E outdoor rated (cable outer diameter<9mm, internal resistance≤1.5/ 10m) and
shielded RJ45 connectors are recommended.
.31..30.
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Figure 4.2 RJ45 port
485-IN
485-OUT
3. Installation
Solis three phase inverters integrate neutral connection point.
However, with or without neutral connected won't affect the normal operation of inverter
itself. Please refer to the local grid requirement if need neutral cable connected.
NOTE

Connection of Terminal board.
a. Strip the insulation and shield to a suitable length. Use diagram below as a guide.
(see 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. (see Figure 4.6).
8mm
30mm
Figure 4.5 Figure 4.6
f. Replace terminal block onto interface board.
e. Insert the cable into the terminal board and tighten the screws in dotted area(See Figure 4.4).
4.2 PLC Communication
One of the RS485 and PLC communication methods is available.
For the models with additional PLC communication, switching between PLC
communication and RS485 communication can be realized by flipping the
switch on the communication board as indicated in figure 4.7.
Only one communication method is available during operating.
Standard model without PLC communication doesn't have this switch.
NOTE
WARNING
Must power off the inverter on both AC and DC before switch the
communication method.
Figure . Switch between PLC and RS4854 7
4. Comm. & Monitoring 4. Comm. & Monitoring
.33..32.
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.
2. RS-485 communication through terminal board.
Figure 4.4
The cross sectional area of the conductor 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
124 3
c. Insert the cable through the cap nut for each port. COM2(RS485 IN) COM3(RS485 OUT).
d. Remove the terminal block on user interface board(See Figure 4.4).

5. Commissioning
Please follow below steps to assemble 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 4.9 connect the wire to the plug of
RJ45, and then use a network cable crimping tool to make it tight.
Correspondence between the cables
and the stitches of plug, Pin5 and Pin6
of R J45 terminal is used for the logic
interface, other Pins are reserved.
Pin 1: Reserved; Pin 2: Reserved
Pin 3: Reserved; Pin 4: Reserved
Pin 5: Switch_input1; Pin 6: Switch_input2
Pin 7: Reserved; Pin 8: Reserved
1--8
RJ45 plug RJ45terminal
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
DRM(logic interface)
Switch_input1 Switch_input2
Figure 4.9 Strip the insulation layer and connect to RJ45 plug
3. Connect RJ45 to DRM (l ) . ogic interface
After wire connection, please refer chapter 7.5.8.1 to enable the logic interface function.
4.3 Logic interface connection
4. Comm. & Monitoring
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
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 operated normally. When the switch is opened,
the inverter will reduce it’s output power to zero within 5s.
Pin5 and Pin6 of RJ45 terminal is used for the logic interface connection.
.35..34.
Inverter
PV Strings
Grid
Transformer
PLC CCO Datalogger
DC
AC PLC
RS485
Figure . Multiple inverter monitoring system4 8 (PLC)
PLC is available for multiple inverter monitoring.
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings

5. Commissioning 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
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.
WARNING
Input voltages higher than the maximum value accepted by the inverter
(see “Specifications” in section 10) 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
Measure leakage to ground to check for a DC ground fault.
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
.37..36.

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.
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 10 “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
5. Commissioning 6. Start and Shutdown
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). Select "Grid Off" in the Advanced Setting of Inverter LCD.
2). Turn off the AC Switch between Solis inverter and Grid.
3). 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.
4). 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.
.39..38.