CanadianSolar CSI-75K-T40001-E User manual

CSI-75K-T40001-E
CSI-100K-T4001A-E
CSI-100K-T4001B-E
CSI-110K-T4001A-E
CSI-110K-T4001B-E
CSI-120K-T4001A-E
CSI-120K-T4001B-E
PV Inverter Quick Installation Guide
（Part No: 91000221; Release Date: February, 2023）

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1 About This Guide
1) This guide only applies to the following inverters：CSI-75K-T40001-E, CSI-100K-T4001A-E, CSI-100K-T4001B-E, CSI-110K-
T4001A-E, CSI-110K-T4001B-E, CSI-120K-T4001A-E and CSI-120K-T4001B-E.
2) This instruction only provides an overview of the installation of the above inverters
3) Due to product version upgrade or other reasons, this guidance will be updated irregularly. Under no circumstances can
this guide replace the user manual and the safety instructions on the product.
4) Please read the user manual and related standard specifications carefully before performing any operation on this series
of products. You can scan the QR code on the left side of the device or at the end of this guide to obtain an electronic
copy of the manual。
5) All operations on this series of products must be completed by professional technicians. Professional and technical
personnel must be specially trained, read user manual, master the safety matters related to operation, and be familiar
with local standards and electrical system safety specification.
6) Before installing the products, please check whether the products are complete, consistent with the order, and whether
there is obvious damage. If there is any abnormality, please contact the local dealer or CSI Solar Co., Ltd.
2 Product Introduction
1050mm 355mm
687mm
1 6
3
4
5
2
3
4
5
2
7
8
9
CSI-120K-T4001A-E
CSI-110K-T4001A-E
CSI-75K-T40001-E
COMM. PORT-1
VENT VALVE
AC OUTPUT
MPPT-6
PV-11 PV-12
MPPT-5
PV-9 PV-10
MPPT-4
PV-7 PV-8
MPPT-3
PV-5 PV-6
MPPT-2
PV-3 PV-4
MPPT-1
PV-1 PV-2
DO NOT DISCONNEC T UNDER LOAD!
DC SWITCH-2
ON
OFF
DC SWITCH-1
ON
OFF
COMM. PORT-4
COMM. PORT-2
COMM. PORT-3 COMM. POR T-5
AUX. PORT GROUNDING
17 1211 16 10 15 13 14
CSI-100K-T4001A-E

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CSI-120K-T4001B-E
CSI-110K-T4001B-E
COMM. PORT-1
VENT VALVE
AC OUTPUT
MPPT-9
PV-17 PV-18
MPPT-8
PV-15 PV-16
MPPT-7
PV-13 PV-14
MPPT-6
PV-11 PV-12
MPPT-5
PV-9 PV-10
MPPT-4
PV-7 PV-8
MPPT-3
PV-5 PV-6
MPPT-2
PV-3 PV-4
MPPT-1
PV-1 PV-2
DO NOT DISCO NNECT UNDER LOA D!
DC SWITCH-3
ON
OFF
DC SWITCH-2
ON
OFF
DC SWITCH-1
ON
OFF
COMM. PORT-4
COMM. PORT-2
COMM. PORT-3 COMM. PORT-5
AUX. PORT GRO UNDING
17 1211 16 10 15 13 14
CSI-100K-T4001B-E
FIG 2-1 Product introduction (The picture is for reference only)
1.LED indicator Panel
10. Cable gland for communication
2.Side handles and mounting ears
11.PV input connectors
3.Bottom handles
12.DC disconnect switch
4.M12 holes for lifting eyes or hand shanks
13.Cable gland for AC output
5.M12 holes for hand shanks
14.Cable gland for interior grounding
6.Additational grounding points
15.Reserved auxiliary port
7.Rating label
16.Communication connector for data logger
8.Warning label
17.Breather valve
9.The cover of outer fan module
3.1 Installation Environment Requirements
1) Do not install the inverter on the structures constructed of flammable, thermolabile or explosive materials.
2) Ensure the inverter is out of children's reach.
3) The ambient temperature should be between -30℃~ 60℃.
4) The humidity of the installation location should be below 100% without condensation.
5) Do not install the inverter outdoors in salt, sulfur or other corrosive areas.
6) Prevent the inverter from direct exposure to sun, rain and snow.
7) The inverter should be well ventilated. Ensure air circulation.
8) Never install the inverter in living areas. The inverter will generate noise during operation, affecting daily life.
9) Install at at an appropriate height for ease of viewing LED indicators and operating switches.
FIG 3-1 Installation site
3.2 Carrier Requirements
Max. load bearing capacity ≥ 4 times of inverter weight.
3.3 Installation Angle Requirements
Inverter vertically or at aminimum back tilt of 10°. Forward installation or upside down installation is prohibited.。

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Vertical Forward Upside downBackward
≥10
FIG 3-2 Installation angle
3.4 Installation Clearance Requirements
1）Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. ( 3-3 The fans are
maintained on the left side of the inverter, and a larger clearance is required.)
In case the distance is less than 800mm, move the inverter from the mounting-bracket or wall before maintaining fans
2) In case of multiple inverters, reserve specific clearance between the inverters. 3-4
≥600mm
≥800mm
≥1000mm
≥400mm
≥500mm
FIG 3-3 Single installation space
≥800mm ≥800mm ≥400mm
FIG 3-4 Multiple installation space

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3.5 Assembling the mounting-bracket
Dimensions of the assembled mounting-bracket are as follows 3-5.
1000.5
250
1060.5
355
2-Ø12
12
20
12
20
M4
PH2 1.5N.m
FIG 3-5 Assembly mounting bracket
3.5.1 Standard C or U Steel Installation
Mounting Steps:
Step 1 Localize the hole positions in C or U-section steel to install mounting bracket.
Step 2 Secure the mounting bracket with M10 bolts and nuts.
M10
30N.m
FIG 3-6 Locate the mounting hole
3.5.2 Steel Frame Installation
Mounting Steps:
Step 1: Level the assembled mounting-bracket by using a level, and mark the positions for drilling holes on the steel frame.
Drill the holes by using a hammer drill. Recommended aperture 12mm.
Step 2: Secure the mounting-bracket with M10 bolts and nuts.

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Ø12
M10
30N.m
FIG 3-7 Install the wall bracket
3.6 Inverter Installation
Step 1: Take out the inverter from the packing carton.
Step 2: Hoist the inverter to the installation position.
Step 3: Hang the inverter to the mounting-bracket and ensure that the mounting ears perfectly engage with the mounting-bracket.
Step 4: Fix the inverter with screws M6x30.
M6
4.5
N.m
FIG 3-8 Install the inverter
4 Electrical Connection
4.1 Electrical Connection Overview
1）PV string; 2）Inverter; 3） AC distribution box/cabinet ; 4）Utility grid; 5）Monitoring device
1
2
34
ABC D E
5
FIG 4-1 General electrical connection diagram

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Table 4-1 Recommended Cables
No.
Cable Name
Cable Type
Conductor Cross-Sectional Area
Outer Diameter
1
DC cable
PV cable, complying with 1500V
standard
4~6mm2
6~9mm
2
Additional
Grounding cable
Outdoor single core copper conductor
cable
The same as that of the
PE wire in the AC cable
N/A
3
AC cable
F our/Five-core outdoor copper or
aluminum cables
1) 75KW: 4 or 5 x 50~185 mm2
75KW: 3 x 240+1 x 120 mm2
2) 100~120KW: 4 or 5 x 70~185 mm2
100~120KW: 3 x 240+1 x 120 mm2
26~57mm
PE wire: refer to "table 5-
2PE wire requirements"
4
Communication
cable
Shielded twisted pair (terminal
block)
0.5~1.5 mm2
4.5~6.5mm
CAT-5 Ethernet cable (RJ45)
N/A
5
Wireless
communication
N/A
N/A
N/A
Tbale 4-2 PE wire requirements
Phase wire cross
section S
PE wire cross
section
Outer
Diameter
Note
S ＞ 35 mm
²
S/2
12~25mm
The specifications are valid only when the phase wire and PE
wire use the same material. If otherwise, ensure that the
cross section of PE wire produces a conductance equivalent
to that of the wire specified in the table.
4.2 Connecting the PE Cable
WARNING
Since the inverter is a transformerless inverter, neither the negative pole nor the positive pole of the
PV string can be grounded. Otherwise, the inverter will not operate normally.
Connect the additional grounding terminal to the protective grounding point before AC cable
connection, PV cable connection, and communication cable connection.
The ground connection of this additional grounding terminal cannot replace the connection of the PE
terminal of the AC cable. Make sure thoes terminals are both grounded reliably.
Connection Procedure ：
Step 1 Prepare the cable and terminal.
Step 2 Remove the screw on the grounding terminal and fasten the cable with awrench.
Step 3 Apply paint to the grounding terminal to ensure corrosion resistance.

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L1
L2=L1+3mm L3=2L1
D
8.4≤D≤12.5mm
8N.m
M8
FIG 4-2 Install ground cables
4.3 Communication Cable Connection
4.3.1 Opening the Wiring Compartment
Step 1 Loosen four screws on the front cover of the wiring compartment with screwdriver T30.
Step 2 Open the wiring compartment.
Step 3 Loosen two screws on the communication board, and remove the protection cover
Note： Close the wiring compartment in reverse order after completing wiring operations.
M6
T30
M4
PH2
FIG 4-3 Open the Wiring Compartment
4.3.2 Communications Interface Description
The following figure shows the position of the communication wiring board in the inverter as well as the terminals equipped for the
wiring board.(Note: The communication wiring board shown in the enlarged figure below is placed horizontally, while the
communication board in the actual working state is placed vertically.)
4.3.3 RS485 Communication
The inverter is equipped with four groups of RS485 communication port for external communication connection, which are
RS485_1, RS485_2, RS485_3, and RS485_4.
The terminal block interface and RJ45 interface have the same function with only wiring manner different. Select either
interface for cable connection.
4.3.3.1 Single-inverter communication system
In case of asingle inverter, select either terminal block interface (RS 485-1, and RS 485-3) or RJ45 interface(C1~C8) to
connect.

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RS485-3
RS485-1 RS485-2
RS485-4
USB Dry
contact CAN DRMMeter/Tracker
120O
A1 B1 PE +12V
RS485 RS485
METER/TRACKER
DRM
USB
A1 B1 PE +12V
ON OFF
SW1
ON OFF
SW3
120O
120O
SW2
ON OFF
DRY CONN CAN
RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker
A1B1PE +12V
RS485 RS485
Logger
PC
A1B1PE +12V
FIG 4-4 Communications Interface Description FIG 4-5 Single-inverter communication system
4.3.3.2 Multi-inverter communication system
In case of multiple inverters, select either terminal block interface or RJ45 interface to connect.
1) All the inverters are connected via terminal block interface (RS485 cables) in the daisy chain.
FIG 4-6 Multi-inverter communication system (RS485 cables)
RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker
A1B1PE+12V
RS485 RS485
METER/TRACKER
RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker
Logger
Plant monitoring station
RS485-1 RS485-1 RS485-1RS485-2RS485-2
A1B1PE+12V
RS485 RS485 RS485 RS485
A1B1PE+12V A1B1PE+12V METER/TRACKER METER/TRACKER A1B1PE+12V A1B1PE+12V

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2) All the inverters are connected via RJ45 interface (internet cable) in the daisy chain.
RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker
A1B1PE+12V
RS485 RS485
METER/TRACKER
RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker RS485-3
RS485-1 RS485-2
RS485-4 Meter/Tracker
Logger
Plant monitoring station
RS485-3 RS485-3 RS485-3RS485-4RS485-4
A1B1PE+12V A1B1PE+12V
RS485 RS485
METER/TRACKER
A1B1 PE+12V A1B1PE+12V
RS485 RS485
METER/TRACKER
A1B1PE+12V
FIG 4-7 Multi-inverter communication system (RJ45 cables)
3) More than15 pcs inverters communication.
All the inverter are connected via terminal block interface (RS485 cables) in the daisy chain.
When more than 15 inverters are connected on the same daisy chain, the inverters on two ends of the chain should be
equipped with terminal resistors of 120Ω to ensure communication quality by configuring the dip switch (SW2), and the
shielding layer of the communication cable should be single-point grounded.
Logger
Plant Monitoring Station
Inverter N Inverter 2~(N-1) Inverter 1
SW2
ON
OFF
SW2
ON
OFF
SW2
ON
OFF
FIG 4-8 More than15 pcs inverters communication system
4.3.3.3 Connection Procedure (Terminal Block)
Step 1: Strip the protection layer and insulation layer by appropriate length.
Step 2: Loosen the swivel nut of the communication terminal and select an appropriate seal according to cable outer diameter.
Lead the cable through the swivel nut and seal successively.
Step 3: Secure the cable to the terminal base.
Step 4: Insert the terminal base into the corresponding terminal.
Step 5: Pull the cable gently to make sure it is secured, tighten the swivel nut clockwise.