CanadianSolar CSI Series User manual

CANADIAN SOLAR INC.
Global Headquarters:
545 Speedvale Avenue, West Guelph, Ontario
N1 K 1 E6, Canada
Tel:
[phone]
Sales Inquiries Email: [email protected]
Technical Inquiries Email: [email protected]
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]
This manual is subject to change without prior notification. Copyright is
reserved. Duplication of any part
of this issue is prohibited without written
permission.
Please adhere to the actual products in case
of any discrepancies in this usermanual.
$ ~ CanadianSolar
CSI Three Phase Inverter
(125kW) Installation and Operation Manual
For U.S.
Ver 1.2
CANADIAN SOLAR INC.

~ ~ CanadianSolar ~ ~ CanadianSolar
Important notes
• Productspecifications are subjectto 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 bythe
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.

Contents
~ ~ CanadianSolar
1. Introduction ···························································································································································· 4
1.1 Product Description ····················································································································· 4
1.2 Unpacking and storage ············································································································ 5
1.2.1
Storage ······························································································································ 6
2. Safety instructions ······································································································································· 7
2.1 Safety symbols ······························································································································ 7
2.2 General safety instructions ··································································································· 7
2.3 Notice for use ································································································································· 8
2.4 Protection Circuitry and Controls····························································································· 8
3. Installation ····························································································································································10
3.1 Environmental considerations ····························································································· 10
3.1.1 Select a location for the inverter ········································································ 10
3.1.2 Other environmental considerations ............................................................... 11
3.2 Product handling ························································································································ 12
3.3 Mounting the Inverter ··············································································································· 13
3.3.1 Wall mounting ··············································································································· 14
3.3.2 Rack mounting ······································································································ 15
3.4 Electrical Connections ··············································································································· 17
3.4.1 Grounding ··············································································································· 18
3.4.2 Connect PV side of inverter ···················································································· 20
3.4.3 Connect grid side of inverter ················································································· 23
4. Communication & Monitoring ············································································································ 26
4.1 RS485 and Ethernet communication connection ...................................................... 26
4.1.1 RS485 communication ································································································ 26
4.1.2 Ethernet communication ····························································································· 29
5. Commissioning ················································································································································ 30
5.1 Selecting the appropriate grid standard ········································································ 30
5.1.1 Verifying grid standard for country of installation ···································· 30
5.2 Changing the grid standard ··································································································· 30
5.2.1 Procedure to set the grid standard .................................................................. 30
5.3 Setting a custom grid standard ·························································································· 31
5.4 Preliminary checks ····················································································································· 32
5.4.1 DC Connections ············································································································ 32
5.4.2AC Connections ············································································································ 32
5.4.3 DC configuration ········································································································· 32
5.4.4AC configuration ······································································································ 34
6. Normal operation ······································································································································· 35
6.1 Start-up procedure
.................................................................................................................. 35
6.2 Shutdown procedure ·················································································································· 35
6.3 Main Menu ······································································································································· 36
6.4 Information ······································································································································· 36
6.4.1 Lock screen
......................................................................................................... 38
~ ~ CanadianSolar
Contents
6.5 Settings ················································································································································ 38
6.5.1 Set Time ·················································································································· 38
6.5.2 Set Address ·················································································································· 38
6.6 Advanced Info- Technicians Only ······················································································· 39
6.6.1 Alarm Message ·················································································································· 39
6.6.2 Running Message ········································································································· 39
6.6.3 Version ································································································································· 40
6.6.4 Daily Energy ························································································································ 40
6.6.5 Monthly Energy ·················································································································· 40
6.6.6 Yearly Energy ····················································································································· 41
6.6.7 Daily Records ····················································································································· 41
6.6.8 Communication Data ··································································································· 41
6.6.9 Warning Message ············································································································ 41
6.7 Advanced Settings- Technicians Only ·············································································· 42
6.7.1 Selecting Standard ······································································································ 42
6.7.2 Grid ON/OFF ·················································································································· 44
6.7.3 Clear Energy
··················································································································44
6.7.4 Reset Password ·················································································································· 44
6.7.5 Power control ·················································································································· 45
6.7.6 Calibrate Energy·················································································································· 45
6.7.7 Special Settings ·················································································································· 45
6.7.8 STD Mode settings ········································································································· 46
6.7.9 Restore Settings ···············································································································57
6.7.10HMIUpdate ·····················································································································57
6.7.11 ExternaiEPMSet ·········································································································57
6.7.12RestartHMI ··················································································································58
6.7.13 Debug Parameter ·········································································································58
6.7.14 Fan Test ······························································································································58
6.7.15DSPUpdate ··················································································································59
6.7.16 Compensation Set ······································································································59
6.7.171/VCurve ···························································································································60
7. Maintenance ························································································································································· 61
7.1
Anti-PID Function ······························································································································ 61
7.2 Fan Maintenance ······························································································································ 62
7.3 Fuse Maintenance ··························································································································· 63
7.4 Surge Protection Device Maintenance ·············································································· 64
8. Troubleshooting ················································································································································ 65
8.1 Current Alarm ···································································································································· 65
8.2Aiarm History ···································································································································· 65
8.3 Error Messages ······························································································································ 65
9. Specifications ······················································································································································ 69
10. Appendices ························································································································································· 70
11. Installation and commissioning checklist ····································································· 72

1. Introduction
~ ~ CanadianSolar
1.2.1 Storage
Ifthe inverter is not installed immediately, storage instructions and environmental conditions are below:
•
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 ofdust 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. Ifpacking
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 ofstorage, the inverter
and carton must be inspected for physical damage before
installing. Ifstored 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 ofnon-use requires the equipment
be inspected and, in some cases,
the removal ofoxidation
and dust that has settled inside the equipment will be required.
.6.
DO NOT STACK
MORE 11-IAN 2 HIGH
Figure 1.3
~ ~ canadianSolar 2. Safety Instructions
Improperuse may result in electric shock hazards or burns. This product manual contains
importantinstructions 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.
2.1 Safety symbols
Safety symbols used in this manual, which highlight potential safety risks and importantsafety
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
PVarray 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.
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.
.7.

3. Installation
~ ~ CanadianSolar
3.3.2 Rack mounting
The steps to mounted to the rack are listed below:
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 thatyou 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 ] [Backward]
Figure 3.9 Correct installationAngle
[Inverted ]
® ®
Figure 3.10 Wrong installationAngle
.14.
~ ~ CanadianSolar
3. Installation
3. Install mounting plate
1) Remove the bracket and fasteners from the packaging. Markthe position
for hole,
drilling according to the hole positions
of the bracket.
Figure 3.11 Markthe position
for hole
2) Drill the marked holes. It is recommended to
apply anti-corrosive paint atthe hole for
corrosion protection.
Figure 3.12 Drill hole
.15.

3. Installation
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3)Align the mounting plate with the holes, Insertthe combination bolt {M1 OX40)through the
mounting plate into the hole. Secure the bracketto the metal frame firmly with the supplied
fastener. Torque the
nut to 25.8ft-lbs {35N.m).
Figure 3.13 Construction bolt
4)
Lift the inverter above the bracket and then slide down to make sure they match perfectly.
Figure 3.14 Mountthe
inverter
.16.
~ ~ CanadianSolar
3. Installation
3.4 Electrical Connections
Inverter design uses PVstyle 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.
Parts Connection Cable size Torque
DC terminal PV strings
12-10AWG NA
Ground terminal AC ground 3-1 AWG 7.4-8.9 ft-lbs
Grid terminal Grid
2-4/0AWG 7.4-14.6 ft-lbs
RS-485 terminal Communication cable
22-12AWG 0.44 ft-lbs
RJ45 terminal Communication cable Networkcable
NA
COM terminal Wi-Fi/Cellular stick NA NA
DC surge protection NA
NA NA
device
Table
3.1 Electrical connection symbols
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. Connectthe inverter to the grid.
4. Assemble PV connectorand connect to the Inverter.
.17.

3. Installation
~ ~ CanadianSolar
3.4.3.2 Wiring procedure
CAUTION
RISK OF ELECTRIC SHOCK. Priorto 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
offire 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 PERTERMINAL.
NOTE
Use
M1 0 crimp terminals to connect to the inverter AC terminals.
The steps to assemble the
AC grid terminals are listed as follows:
.24.
1) Strip the end
of AC cable insulating jacket about 300mm then strip the end of each wire.
(as shown in figure 3.25)
Figure 3.25
StripAC cable
NOTE:
S2 (insulation stripping length) is 2mm-3mm
longer than S1.
(OT cable terminal crimping area)
2) Strip the insulation
of the wire pastthe cable crimping area of the OT terminal (M 10
terminal), then use a hydrauliccrimp tool to crimp the terminal. The crimped portion
of
the terminal must be insulated with heat shrinkable tube or insulating tape.
3) Leave
theAC breakerdisconnected to ensure it does not close unexpectedly.
4) Remove the 4 screws on the
inverter junction boxand remove the junction box
cover (Figure 3.26).
~ ~ CanadianSolar
3. Installation
Figure 3.26 Remove thejunction box cover
5) Insertthe cable through the nut, sheath, and AC terminal cover. Connect the cable to
theAC terminal block in turn, using a socket wrench. Tighten the screws on the terminal block.
The torque is 7.4-8.9 in-lbs (as shown in Figure 3.27).
PE
Figure 3.27 wiring
.25.

5. Commissioning
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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 presetstandards for operating on
any grid. Although the grid standard is set atthe 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
.30.
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 bythe local utility.
1
). From the main screen on the display, select ENTER. There are 4 sub-menu options,
use the UP/DOWN arrows to highlightADVANCED SETTINGS. Press
enter to select.
lmi.iiufdttm1
Settings
Figure 5.1
2). The screen will showthata password is required. The default password is "001 0",
press the DOWN key to move cursor, press the UP key to change the highlighted digit.
I
YES=<ENT> NO=<ESC> I
Password:0000
Figure 5.2
~ ~ CanadianSolar
5. Commissioning
3). Use the UP/DOWN keys to highlightthe SELECT STANDARD option. Press enter to
select.
~-mm~·nmnmm
Grid ON/OFF
Figure 5.3
4). Selectthe grid standard
for the country of installation.
IYES=<ENT> NO=<ESC> I
Standard:UL-600V
Figure 5.4
Press the UP
or DOWN key to selectthe standard. Press the ENTER key to confirm the setting.
Press the ESC key to cancel changes and return to the previous menu.
UL-600V,
R21 P3-600, ISONE600 are available for U.S. and Canada markets.
5.3 Setting a custom grid standard
WARNING
• Failure to setthe correct grid standard could result in improperoperation
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 referto section 6.7 "Advanced Settings" for procedures to create a custom grid
configuration
for User-Defmenu option.
.31 .

5. Commissioning
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5.4 Preliminary checks
WARNING
High Voltage.
AC and DC measurements should be made only by qualified personnel.
5.4.1 DC Connections
Verify DC connections.
1). Lightlytug on each DC cable to ensure it is fully captured in the terminal.
2). Visually check
for any straystrands that may not be inserted in the terminal.
3). Checkto ensure the terminal screws are the correct torque.
5.4.2AC Connections
VerifyAC connections.
1). Lightlytug on eachAC cable to ensure it is
fully captured in the terminal.
2). Visually check
for any straystrands that may not be inserted in the terminal.
3). Checkto ensure the terminal screws are the correct torque.
5.4.3 DC configuration
Verify DC configuration by noting the number of panels in a string and the string voltage.
5.4.3.1 VOC and Polarity
Measure VOC, and checkstring polarity. Ensure both are correct and VOC is in specification.
5.4.3.1.1 Check string voltage
To measure the open circuit voltage (VOC) and polarity of the individual strings, perform
the following steps:
.32.
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
injuryto personnel may occur.
1
). Ensure that all fuse holders are open.
2). Connectthe positive lead
of the meter to the positive string cable of the string under
test. Connectthe negative lead of the meterto the negative string cable of the
string
under test.
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5. Commissioning
3). Measure the voltage present between the positive and negative wires of each string.
If the open circuit voltage of the string is nearthe maximum value accepted by the
inverter,
verify the string length. Lowambient temperatures cause an increase in
the string voltage causing potential damage to the inverter.
4
). Checkthe polarity of the string. All digital meters have a negative ("-")indicator that
indicateswhen a voltage is negative; in this case a string connected in reverse
polarity.
WARNING
Inputvoltages
higher than the maximum value accepted bythe inverter
(see "Specifications" in Section 9) 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.
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 eitherthe positive or negative string
wiring indicates a leakage (ground fault) to ground and must be corrected priorto 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 neithernegative
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", nota consistent voltage to ground. Make sure you notice
the units
of the measurement. mV is notthe same as V.
6). Do not close the fuse holderand connect the strings if a leakage to ground has been
detected. Improperoperation and damage to the inverter may result.
Once all DC tests have been completed, close the fuse holders.
.33.

5. Commissioning
5.4.4AC configuration
VerifyAC configuration.
5.4.4.1 Measure VAC and frequency
Measure VAC and verify voltage is within local grid standards.
1
). Measure each phase to ground (L-G).
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2). Measure phases to the other phases in pairs (L-L). PH A to PH B, PH Bto PH C and
PH Cto PHA.
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 inverterspecifications
as noted in Section 9 "Specifications".
5.4.4.2 Phase rotation test
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.
.34.
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6. Normal operation
6.1 Start-up procedure
To start-up the inverter, it is mandatorythat the steps below are followed in the exact order
outlined.
1
). Ensure the commissioning checks in Section 5 have been performed.
2). Switch
theAC switch ON.
3). Switch the DC switch ON.
If the PV array (DC) voltage is higherthan the inverter's
start-upvoltage, the inverterwill 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 inverterdetects DC
powerthat is within start-up and operating ranges, the inverterwill turn on.
After turn-
on, the inverterwill check internal parameters, sense and monitorAC voltage, hertz
rate and the stability
of the supplygrid. During this period,the green OPERATIONLED
will flash and the LCD screen will show INITIALIZING. This tells the
operator thatthe
inverter is preparing to generateAC power.
5).
After the locally mandated delay(300 seconds for IEEE-1547 compliant inverters), the
inverter will startgeneratingAC power. The green OPERATION LED will light
continuouslyand the LCD screen will show GENERATING.
CAUTION
The inverter's surface temperature can reach up to
75•c (167° 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, itis mandatory thatthe steps beloware followed in the exactorder outlined.
1
). SwitchAC switch OFF.
2). Wait approximately 30 seconds (during this time, theAC 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 .
. 35 .

6. Normal operation
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In normal operation, LCD screen alternatively shows inverter powerand 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.
5sec
6.3 Main Menu
Status: Generating
01-01-2019 12:04
Pressing thr -
ENTERkey
gives access to
the main menu.
Figure 6.1 Operation Overview
There are
four submenus in the Main Menu (see Figure 6.1 ):
1. Information
2. Settings
3. Advanced Info.
4. Advanced Settings
6.4 Information
The Canadian Solar three Phase Inverter main menu provides access to operational
data and information. The information is displayed byselecting "Information" from the
menu and then byscrolling up
or down.
.36.
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6. Normal operation
Display Duration Description
VPV Total: 1000.0V
VPV _Total: Shows inputvoltage total.
IPV_Total: +99.0A 10 sec
IPV_Total: Shows input currenttotal.
I
VA: 345.7V I V_A: Shows the grid's voltage value.
1_-A:
109.0A 10 sec
I_A: Shows the grid's currentvalue.
I V
C: 345.0V I V_C: Shows the
grid's voltage value.
1_-C:
109.8A 10
sec
I_C: Shows the grid's current value.
Status: Generating Status: Shows instantstatus
of the Inverter.
Power: 1488W 10
sec
Power: Shows instant output powervalue.
Rea Power: OOOVar
Rea_Power: Shows the reactive power ofthe inverter.
App -Power:
VA 10
sec
App_Power: Shows the apparent power of the inverter.
Grid Frequency 10
sec
F_Grid: Shows the grid's frequency value.
F_Grid 50.06Hz
Total Energy 10
sec
Total generated energy value.
0258458 kwh
This Month: 0123kwh 10
sec
This Month: Total energy generated this month.
Last Month: 0123kwh Last Month: Total
energy generated last month.
Today: 15.1kwh Today: Total
energy generated today.
Yesterday: 13.5kwh 10
sec
Yesterday: Total energy generated yesterday.
Inverter SN 10
sec
Display series number of the inverter.
00000000000000
Work Mode: Shows current working mode.
Work Mode: Volt-watt 10
sec
DRM N0.:08
DRM NO.: Shows DRM Number.
I_DC01
:Shows input 01 currentvalue.
I_DC01: +05.0A I_DC02
:Shows input 02 currentvalue.
I_DC02: +04.9A 10
sec
...
I_DC20: +05.2A
...
I_DC20: Shows input 20 currentvalue.
Table 6.1 Information
list
.37.