CanadianSolar CSI-185K-T600GL02-U User manual

CSI GRID-TIED PV INVERTER (185-255)K
INSTALLATION AND OPERATION MANUAL
This manual is subject to change without prior notification. Copyright is
reserved. Duplication of any part of this issue is prohibited without written
permission.
CANADIAN SOLAR (USA) , INC.
North America Headquarters:
3000 Oak Road, Ste 400, Walnut Creek, CA 94596
Tel: [phone]
Sales Inquiries Email: [email protected]
Technical Inquiries Email: [email protected]
Please adhere to the actual products in case of any discrepancies in this user manual.
CSI-185K-T600GL02-U & CSI-255K-T800GL02-U
www.csisolar.com
Canada – Global Headquarters
CSI Solar Co., Ltd.
199 Lushan Road, SND, Suzhou, Jiangsu, China, 215129
P [phone]
F [phone]
Sales Inquiries Email: [e-mail]
Customer Support Email: [e-mail]
Version 1.0, Release Date: 02,2021

Important notes
.1.
● Product specifications are subject to change without notice. Every attempt has been made
to make this document complete, accurate and up-to-date. Individuals reviewing this
document and installers or service personnel are cautioned, however, that Canadian Solar
reserves the right to make changes without notice and shall not be responsible for any
damages, including indirect, incidental or consequential damages caused by reliance
on the material presented including, but not limited to, omissions, typographical errors,
arithmetical errors or listing errors in the material provided in this document.
● Canadian Solar accepts no liability for customers' failure to comply with the
instructions for correct installation and will not be held responsible for upstream or
downstream systems Canadian Solar equipment has supplied.
● The customer is fully liable for any modifications made to the system; therefore, any hardware
or software modification, manipulation, or alteration not expressly approved by the
manufacturer shall result in the immediate cancellation of the warranty.
● Given the countless possible system configurations and installation environments, it is
essential to verify adherence to the following:
● There is sufficient space suitable for housing the equipment.
● Airborne noise produced depending on the environment.
● Potential flammability hazards.
● Canadian Solar will not be held liable for defects or malfunctions arising from:
● Improper use of the equipment.
● Deterioration resulting from transportation or particular environmental conditions.
● Performing maintenance incorrectly or not at all.
● Tampering or unsafe repairs.
● Use or installation by unqualified persons.
● This product contains lethal voltages and should be installed by qualified electrical or service
personnel having experience with lethal voltages.

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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3.3.1 Wall mounting
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7.3.1 Set Time 33
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7.3 Settings 33
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7.2.1 Lock screen
3.4 Electrical Connections 14
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15
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3.4.1 Grounding
17
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3.4.2 Connect PV side of inverter
19
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3.4.3 Connect grid side of inverter
23
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4. Communication & Monitoring
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7.3.2 Set Address 33
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7.4 Advanced Info - Technicians Only 34
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7.4.1 Alarm Message 34
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7.4.2 Running Message 34
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7.4.3 Version 35
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7.4.4 Daily Energy 35
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7.4.5 Monthly Energy 35
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7.4.6 Yearly Energy
36
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7.4.7 Daily Records
36
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7.4.8 Communication Data
36
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7.4.9 Warning Message
36
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7.5 Advanced Settings - Technicians Only 37
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7.5.1 Selecting Standard 37
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7.5.2 Grid ON/OFF 39
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7.5.3 Clear Energy 40
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7.5.4 Reset Password 40
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7.5.5 Power control 40
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7.5.6 Calibrate Energy 41
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7.5.7 Special Settings
41
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7.5.8 STD Mode settings
41
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7.5.9 Restore Settings
54
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7.5.10 HMI Update
54
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7.5.11 Restart HMI
54
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7.5.13 DSP Update 55
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7.5.14 Compensation Set 55
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7.5.15 I/V Curve
56
8. Maintenance ……………………………………………………………………………………………………………………………………… 57
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7.5.12 Fan Test
55
5. Commissioning
5.1 Selecting the appropriate grid standard
5.1.1 Verifying grid standard for country of installation
25
25
25
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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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5.4.4 AC configuration 28
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6. Start and Shutdown
6.1 Start-up procedure
6.2 Shutdown procedure
29
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29
7.1 Main Menu 30
30
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7.2 Information ………………………………………………………………………………………………………………………
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8.2 Fan Maintenance 58
9. Troubleshooting ……………………………………………………………………………………………………………………………… 59
10. Specifications …………………………………………………………………………………………………………………………………… 62
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8.1 Anti-PID Function 57
4.1 RS485 and PLC communication connection 23
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7. Normal operation 30
11. Appendices ……………………………………………………………………………………………………………………………………… 64

.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.
Buttons
LED
LCD Screen
COM
(Optional)
Inverter packing list
Part #
1
2
Description
Inverter
Mounting Bracket
Number
1
1
Hexagon bolt M10*40
Remarks
4
5
Fastening screw, hex nut and flat gasket 4
DC connector
DC Switch
(Standard)
DC Inputs
AC Output
Hexagon bolt M6*12
3Fastening screw 2
28
DC Coupled Port
(Reserved)
Canadian Solar Three phase Inverters covert DC power from the photovoltaic(PV) array
into alternating current(AC) power that can satisfy local loads as well as feeding into
the power distribution grid.
This manual covers the three phase inverter model listed below:
CSI-185K-T600GL02-U, CSI-255K-T800GL02-U
123
56
4
7 8
9
Manual
63
7RJ45 connector 1
8Handle 4
9User manual 1
2 pin port

1. Introduction
.7..6.
2.1 Safety symbols
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 40~176°F 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.
SAVE THESE INSTRUCTIONS – This manual contains important instructions for Models
CSI-185K-T600GL02-U and CSI-255K-T800GL02-U that shall be followed during
installation and maintenance of the inverter.

.9..8.
CAUTION
Risk of electric shock from energy stored in the inverter's capacitors.
Do not remove cover until 20 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 167 F . 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 167°F(75℃).
● The inverter is designed to work in an ambient temperature range between -25~140°F(-32~60℃).
● If multiple inverters are installed on site, a minimum clearance of 27.5 in should be kept
between each inverter and all other mounted equipment. The bottom of the inverter should be
at least 27.5 in 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 Canadian Solar 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.
27.5in
27.5in
27.5in
27.5in
39.3in

.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 10) for additional environmental conditions
(protection rating, temperature, humidity, altitude, etc.).
3.1.2.2 Vertical wall installation
This model of Canadian Solar inverter should be mounted vertically.
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 around 249lb (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.
IP66

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. When installers are carrying the inverter,
please use 4 handles to secure safety. Lifting force of each handle shall not
exceed 1.5 times of the inverter weight.
Figure 3.4 Inverter handles
Figure 3.7 Install the inverter
Inverter hook Torque:22.1-25.8 ft.lbs
In case of using hoisting to lift the inverter, fix the hoisting cable to the hanger shown in the
graph. Please make a reasonable selection of hoisting equipment considering the inverter
weight of 113kg/249lb.
Figure 3.5 Hoisting sketch
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 3.6.
Figure 3.6 Inverter wall mounting
1026mm(40.4in)
970mm(38.1in)
677mm(26.7in)
500mm(19.7in)
Φ11mm(0.43in)
This product is designed for utility scale power plant application, not for commercial and
industrial rooftop application. This product only support 90° angle vertical mounting
installation. The steps to mount the inverter are listed below.
1. Refer to Figure 3.7, 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 3.6 in.
2. Make sure the bracket is horizontal. And the mounting holes 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.
4. Lift the inverter and hang it on the bracket, and then slide down to make sure they
match perfectly.

3. Installation 3. Installation
.15..14.
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.
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.
Figure 3.9 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) .
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
12-10 AWG
3-1 AWG
2-4/0 AWG
22-12 AWG
Network cable
NA
7.4-8.9 ft.lbs
7.4-14.6 ft.lbs
0.44 ft.lbs
NA
NA
DC surge protection
device NA NANA
NA
Figure 3.8 Fix the inverter
5. . Use screws in the packaging to fix the inverter to the mount bracket
Torque:1.5-2.2 ft.lbs

3. Installation 3. Installation
.17..16.
D
C
Figure 3.10 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 3.11 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 . 7.4-8.9 ft.lbs
4) Insert the stripped wire into the OT terminal crimping area and use the hydraulic
clamp to crimp the terminal to the wire.
Grounding Screw
Torque：7.4-8.9 ft.lbs
Figure 3.14 Crimp the contact pin to the wire Figure 3.15 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 .2.2-3 ft.lbs
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.
Figure 3.12 Disassemble the Connector Cap nut Figure 3.13 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
Important:
The inverter has a DC fuseless design with internal overcurrent protection.
It is not needed to install any external DC string fuses or DC circuit breakers.
If customers want to have redundant protection, they can choose to install
external DC overcurrent protection devices with 1.5~2.4 times of the string Impp.
External DC overcurrent protection devices shall comply with IEC/EN 60269-6.

3. Installation 3. Installation
.19..18.
Figure 3.16 Multimeter measurement Figure 3.17 Connect the DC
Connectors to the Inverter
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 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.
+
-
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.
Cable type
Outside diameter of
cable（mm）
4.0~6.0
(12~10AWG)
5.5~9.0
Traverse area（mm²）
Range
Industry generic PV cable
（model:PV1-F）
Recommended
value
4.0
(12AWG)
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.
3.4.3 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
(The OCPD shall comply with IEC/EN60947-3):
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.
5. Measure PV voltage of DC input with multimeter, verify DC input cable polarity
(see figure 3.16), 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 3.17)

3. Installation 3. Installation
.21..20.
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”.
3.4.3.2 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 3.18 Strip AC cable
NOTE
S2 (insulation stripping length) is 2mm-3mm longer than S1.
(OT cable terminal crimping area)
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 11.8 inch then strip the end of each wire.
Cable specification
70
26~60
36
Live wire
Conduit diameter
(mm)
Traverse cross
sectional area (mm )
2
Range
Recommended
70~300
Range
Recommended
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).
50
18~32
32
Ground wire
35~50
PE
S2 S1
L
｝
S2 S1
NOTE
Cable ampacity of ground wire should be more than half of cable ampacity
of live wire.
Table 3.2 Rating of grid OCPD
Inverter Rated
voltage(V)
Max. output
current (Amps)
Current for protection
device (A)
178.0
184.0
250
250
CSI-185K-T600GL02-U 600
800
CSI-255K-T800GL02-U

3. Installation
.23..22.
Figure 3.20 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 .7.4-14.6 ft.lbs
Figure 3.21 Wiring with Neutral
3) Leave the AC breaker disconnected to ensure it does not close unexpectedly.
4) Remove the 3 screws on the inverter junction box and open the junction box cover.
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 daisy chain configuration.
Internet
Datalogger
PC monitoring
PV Strings
Inverter
PV Strings
PV Strings
Inverter
Inverter
Figure . Multiple inverter monitoring system4 1 (RS485)
DC
RS485
There are 5 communication terminals on the inverters. 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 .
One of the RS485 and PLC communication methods is available.
NOTE
4.1 RS485 and PLC communication connection
4. Comm. & Monitoring
Copper terminal of cable
flat gasket
spring washer
nut
Figure 3.19 Copper aluminum transfer terminal

4. Comm. & Monitoring
.25..24.
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Grid
Transformer
PLC CCO Datalogger
DC
AC
PLC
RS485
PLC is available for multiple inverter monitoring.
Figure . Multiple inverter monitoring system4 2 (PLC)
5. Commissioning
5.1 Selecting the appropriate grid standard
5.1.1 Verifying grid standard for country of installation
Canadian Solar 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 7.5 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
.27..26.
3). Use the UP/DOWN keys to highlight the SELECT STANDARD option. Press enter to
select.
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. 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 Canadian Solar 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.
Figure 5.4
4). Select the grid standard for the country of installation.
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.
UL-600V, R21P3-600, ISONE600 are available for 185K in U.S. and Canada.
YES=<ENT> NO=<ESC>
Standard:UL-800V
YES=<ENT> NO=<ESC>
Standard:UL-600V
UL-800V, R21P3-800, ISONE800 are available for 255K in U.S. and Canada.

5. Commissioning
.29..28.
5.4.3.2.1 Detection of leakage to ground
Canadian Solar 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. Canadian Solar 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. 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). Canadian Solar 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 20 minutes after the DC power
source has been disconnected before opening the inverter cabinet. DC
side capacitors can take up to 20 minutes to dissipate all stored energy.

7. Normal operation
.31..30.
In normal operation, 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 Main Menu.
5 sec
Start
Power 110000W
01-01-2020 00:00
Status: Generating
01-01-2020 00:00
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 7.1 Operation Overview
7.1 Main Menu
There are four submenus in the Main Menu (see Figure 7.1):
1. Information
2. Settings
3. Advanced Info.
4. Advanced Settings
The Canadian Solar 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.
7.2 Information
7. Normal operation
Display Duration Description
Status: Waiting
Power: 0000W
Grid Frequency
F_Grid 00.00Hz
Total Energy
0000000 kwh
This Month: 0000kwh
Last Month: 0000kwh
Today: 0000.0kwh
Yesterday: 0000.0kwh
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.
Inverter SN
00000000000000
10 sec
Display series number of the inverter.
10 sec
Rea_Power: 000000Var
App_Power: 000000VA 10 sec Rea_Power: Shows the reactive power of the inverter.
App_Power: Shows the apparent power of the inverter.
Table 7.1 Information list
V_AB: Shows output voltage between phase A
and phase B.
I_AB: Shows output current between phase A
and phase B.
V_BC: Shows output voltage between phase B
and phase C.
I_BC: Shows output current between phase B
and phase C.
V_CA: Shows output voltage between phase C
and phase A.
I_CA: Shows output current between phase C
and phase A.
10 sec
10 sec
10 sec
V_AB: +801.0V
I_AB: +50.0A
V_BC: +801.0V
I_BC: +50.0A
V_CA: +801.0V
I_CA: +50.0A

7. Normal operation
.33..32.
The following submenus are displayed when the Settings menu is selected:
1. Set Time
2. Set Address
7.3 Settings
7.3.1 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.
NEXT=<ENT> OK=<ESC>
01-01-2020 00:00
Figure 7.3 Set Time
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.
7.3.2 Set Address
This function is used to set the address when muti inverters are connected to three monitor.
The address number can be assigned from “01”to “99”(see Figure 7.4). The default address
number of Canadian Solar Three Phase Inverter is “01”.
YES=<ENT> NO=<ESC>
Set Address: 01
Figure 7.4 Set Address
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.
7.2.1 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.
(b)(a)
Figure 7.2 Locks and Unlocks the Screen of LCD
7. Normal operation
Display Duration Description
Work Mode: Volt-watt
DRM NO.:08 10 sec Work Mode: Shows current working mode.
DRM NO.: Shows DRM Number.
I_DC01: +00.0A
I_DC02: +00.0A
...
I_DC28: +00.0A
Table 7.2 Information list
10 sec
I_DC01 : Shows input 01 current value.
I_DC02 : Shows input 02 current value.
...
I_DC28 : Shows input 28 current value.
V_DC01: +0000.0A
I_DC02: +00.00A
...
V_DC14: +0000.0A
I_DC14: +00.00A
10 sec
V_DC01 : Shows MPPT 01 current value.
I_DC01 : Shows MPPT 01 current value.
...
V_DC14 : Shows MPPT 14 current value.
I_DC14 : Shows MPPT 14 current value.

.35..34.
7.4.3 Version
The screen shows the model version of the inverter. And the screen will show the
software ver by pressing the UP and DOWN at the same time.(see Figure 7.7).
7.4.4 Daily Energy
The function is for checking the energy generation for selected day.
Figure 7.8 Select date for daily energy
YES=<ENT> NO=<ESC>
Select: 2020-01-01
Press DOWN key to move the cursor to day, month and year, press UP key to change the digit.
Press Enter after the date is fixed.
2020-01-01: 051.3kWh
2020-01-01: 061.5kWh
Figure 7.9 Daily energy
Press UP/DOWN key to move one date from another.
Model: 08
Software Version: D20001
Figure 7.7 Model Version and Software Version
7.4.5 Monthly Energy
YES=<ENT> NO=<ESC>
Select: 2020-01
Figure 7.10 Select month for monthly energy
The function is for checking the energy generation for selected month.
2020-01: 0000kWh
2020-02: 0000kWh
Figure 7.11 Month energy
Press DOWN key to move the cursor to day and month, press UP key to change the digit.
Press Enter after the date is fixed.
7.4.2 Running Message
This function is for maintaince person to get running message such as internal temperature,
Standard No.1,2,etc.
Screens can be scrolled manually by pressing the UP/DOWN keys.
7.4 Advanced Info - Technicians Only
NOTE:
To access to this area is for fully qualified and accredited technicians only.
Enter menu “Advanced Info.” and “Advanced settings” （need password）.
Select “Advanced Info.” from the Main Menu. The screen will require the password as below:
YES=<ENT> NO=<ESC>
Password:0010
Figure 7.5 Enter password
7.4.1 Alarm Message
The display shows the latest alarm messages (see Figure 7.6). Screens can be scrolled 100
manually by pressing the UP/ DOWN keys. Press the ESC key to return to the previous menu.
Alm000: OV-G-V
T: 00-00 00:00 D:0000
Figure 7.6 Alarm Message
Press UP/DOWN key to move one date from another.
7. Normal operation 7. Normal operation
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 default password is “0010". Please press “down” to move the cursor, press “up” to
select the number.
After enter the correct password the Main Menu will display a screen and be able to access
to the following information.

.37..36.
7.5 Advanced Settings - Technicians Only
NOTE:
To access to this area is for fully qualified and accredited technicians only.
Please follow 7.4 to enter password to access this menu.
Select Advanced Settings from the Main Menu to access the following options:
1. Select Standard
2. Switch ON/OFF
3. Clear Energy
4. Reset Password
5. Power Control
6. Calibrate Energy
7. Special Settings
8. STD. Mode Settings
9.Restore Settings
10. HMI Update
11. Restart HMI
12. Fan Test
13. DSP Update
14. Compensation Set
15. I/V Curve
The display shows the latest warn messages (see Figure 7.15). Screens can be scrolled 100
manually by pressing the UP/ DOWN keys. Press the ESC key to return to the previous menu.
Msg000:
T: 00-00 00:00 D:0000
Figure 7.15 Warning Message
7.4.9 Warning Message
7.4.8 Communication Data
The screen shows the internal data of the Inverter (see Figure 7.14), which is for service
technicians only.
01-05: 01 25 E4 9D AA
06-10: C2 B5 E4 9D 55
Figure 7.14 Communication Data
7.4.6 Yearly Energy
YES=<ENT> NO=<ESC>
Select: 2020
Figure 7.12 Select year for yearly energy
2020: 0000000kWh
2019: 0000000kWh
Figure 7.13 Yearly energy
Press UP/DOWN key to move one date from another.
The function is for checking the energy generation for selected year.
Press DOWN key to move the cursor to day and year, press UP key to change the digit.
Press Enter after the date is fixed.
7.4.7 Daily Records
The screen shows history of changing settings. Only for maintance personel.
7. Normal operation 7. Normal operation
7.5.1 Selecting Standard
Figure 7.16 UL-600V
Selecting the “User-Def” menu will access to the following submenu.
Figure 7.17 UL-800V
OV-G-V1: 880V
OV-G-V1-T: 0.6S
Below is the setting range for “User-Def”. Using this function, the limits can be changed
manually. (These voltage values are the phase voltage)
This function is used to select the grid's reference standard.
YES=<ENT> NO=<ESC>
Standard:UL-600V
YES=<ENT> NO=<ESC>
Standard:UL-800V
OV-G-V1: 660V
OV-G-V1-T: 0.6S