Huawei SUN2000-100KTL-M2 Manuale utente

HUAWEI TECHNOLOGIES CO., LTD.

SUN2000-(100KTL, 110KTL, 115KTL)-M2

Quick Guide

Issue: 02

Part Number: 31500HMG

Date: 2023-03-13

1Overview

•The information in this document is subject to change without notice. Every effort has been made in

the preparation of this document to ensure accuracy of the contents, but all statements,

information, and recommendations in this document do not constitute a warranty of any kind,

express or implied.

•Only certified electricians are allowed to operate the device. Operation personnel should understand

the composition and working principles of the grid-tied PV power system and local regulations.

•Before installing the device, read the user manual carefully to get familiar with product information

and safety precautions. Device damage caused by failure to abide by the storage, transportation,

installation, and operation guidelines specified in this document and the user manual is not covered

under the product warranty.

•Use insulated tools when installing the device. For personal safety, wear proper personal protective

equipment (PPE).

(1)

Panel

(2) LED indicators

(3) Maintenance compartment door

(4) Mounting bracket

(5) External fan tray

Appearance

Port Description

(1) DC input terminal group 1 (PV1

–PV8,

controlled by DC SWITCH 1)

(2) DC switch 1 (DC SWITCH 1)

(3) Reset button 1

(RESET 1)

(4) DC input terminal group 2 (PV9

–PV14,

controlled by DC SWITCH 2)

DC Switch Description

The DC switches automatically turn off when a fault occurs in the inverters (LED4 is steady red,

and the three DC switches are OFF). In this case, contact your technical support. Do not turn on

the DC switches by yourself.

2Installation Requirements

Switch

Component

Description

DC SWITCH

The DC switch is ON and can automatically turn off for protection.

The DC switch is ON but cannot automatically turn off for protection.

OFF

The DC switch is OFF.

RESET

•

When the DC switch automatically turns off for protection, the RESET button

will be released.

•When the RESET button is not pressed, the DC switch can only be turned to the

unloaded position , and cannot be set to the ON position.

If inverters are installed in a place with abundant vegetation, in addition to routine weeding,

harden the ground underneath the inverters using cement or gravel (recommended area: 3 m x

2.5 m).

600–730 mm of clearance is recommended underneath.

Angle Clearance

(5) DC switch 2 (DC SWITCH 2)

(6) Reset button 2

(RESET 2)

(7) DC input terminal group 3 (PV15

–PV20,

controlled by DC SWITCH 3)

(8) DC switch 3

(DC SWITCH 3)

(9) Reset button 3

(RESET 3)

(10) Ventilation valve

(11) USB port

(12) Communications port (COM)

(13) Hole for the AC output power cable

(14) Hole for the tracking system power cable

Dimensions

Use the handles

to facilitate

installation.

Handles are

optional and

delivered

separately.

Ensure that the

handles are

securely

installed. After

the installation

is complete,

remove the

handles and set

them aside.

Installation Positions of

Handles During Installation

Installation Positions of

Handles During Transportation

3Installing a Solar Inverter

•This quick guide describes how to install a solar

inverter on a support. For details about wall-

mounted installation, see the user manual.

•The M12x40 bolt assemblies are delivered with the

solar inverter. If the bolt assembly length does not

meet the installation requirements, prepare M12

bolt assemblies by yourself and use them together

with the delivered M12 nuts.

•Before installing the mounting bracket, remove the

security Torx wrench and set it aside.

Position for binding the

security Torx wrench

1. Install the mounting bracket.

It is recommended that anti-rust measures be taken on the positions for drilling holes.

2. Install the solar inverter onto the mounting bracket. 3. Tighten security Torx screws.

4Connecting Cables

•Do not connect loads between the inverter and the AC switch that directly connects to the

inverter. Otherwise, the switch may trip by mistake.

•If an AC switch is used with specifications beyond local standards, regulations, or the

Company's recommendations, the switch may fail to turn off in a timely manner in case of

exceptions, causing serious faults.

Each inverter must be equipped with an AC output switch. Multiple inverters cannot connect to

the same AC output switch.

To ensure that the inverter can be safely disconnected from the power grid when an exception

occurs, connect an AC switch to the AC side of the inverter. Select an appropriate AC switch in

accordance with local industry standards and regulations.

No.

Cable

Type

Conductor Cross

Sectional Area

Outer Diameter

PE cable

[1]

Outdoor cable and M10 OT/DT

terminal

p≥ S/2

–

Tracking system

power cable

Three

-core outdoor copper cable with

dual

-layer protection

10 mm

–18 mm

AC output

power cable

(multi

-core)

•

If you connect a ground cable to the

ground point on the device enclosure

and the neutral wire is not used, you

are advised to use a three-core (L1,

L2, and L3) outdoor cable and M12

OT/DT terminals (L1, L2, and L3).

•

If you connect a ground cable to the

ground point in the maintenance

compartment and the neutral wire is

not used, you are advised to use a

four-

core (L1, L2, L3, and PE) outdoor

cable, M12 OT/DT terminals (L1, L2,

and L3), and M10 OT/DT terminals

(PE).

•

If you connect a ground cable to the

ground point on the device

enclosure

and the neutral wire is used, you are

advised to use a four-

core (L1, L2, L3,

and N) outdoor cable and M12 OT/DT

terminals (L1, L2, L3, and N).

•

If you connect a ground cable to the

ground point in the maintenance

compartment and the neutral wire is

used, you are advised to use a five-

core (L1, L2, L3, N, and PE) outdoor

cable, M12 OT/DT terminals (L1, L2,

L3, and N), and M10 OT/DT terminals

(PE).

•

Copper cable

−S: 70–240 mm

−Sp≥ S/2

•Aluminum alloy

cable or copper-

clad aluminum

cable:

−S: 95–240 mm

−Sp≥ S/2

–66 mm

AC output

power cable

(single

-core)

You are advised to use a single

-core

outdoor cable and M12 OT/DT

terminals.

•

Copper cable

−S: 70–240 mm

•Aluminum alloy

cable or copper-

clad aluminum

cable:

−S: 95–240 mm

–32 mm

Cable Description

Preparations

4.1

•S and Spare the conductor cross-sectional areas of AC power cables and PE cables respectively.

•The cable size must comply with local cable standards.

•The factors that affect cable selection include the rated current, cable type, routing mode,

ambient temperature, and maximum expected line loss.

•Connect cables in accordance with the local installation laws and regulations.

•To prevent poor cable connection due to overstress, leave enough slack before connecting the

cables to the appropriate ports.

No.

Cable

Type

Conductor Cross

Sectional Area

Outer Diameter

DC input power

cable

PV cable that meets the 1100 V

standard

–6 mm2

5.5

–9 mm

RS485

communications

cable

Outdoor shielded twisted pair

that

meets the local standard

0.25

–1 mm2

•

One or two

communicatio

ns cables: 4–

11 mm

•

Three

communicatio

ns cables: 4–

Note

[1]: The value of Spis valid only if the conductors of the PE cable and AC power cable use

the

same material. If the materials are different, ensure that the conductor of the PE cable with a

proper cross

-sectional area produces a conductance equivalent to that of the cable specified in the

table.

The specifications of the PE cable are subject to this table or calculated according to IEC

60364

-5-54.

Installing a PE Cable

4.2

•It is recommended that the PE cable of the solar inverter be connected to a nearby ground

point. Connect the PE points of all solar inverters in the same array to ensure equipotential

connections to PE cables.

•To enhance the corrosion resistance of a ground terminal, you are advised to apply silica gel

or paint on it after connecting the PE cable.

Reserved PE point

Opening the Maintenance Compartment Door

4.3

•Do not open the panel of the solar inverter.

•Before opening the maintenance compartment door, turn off the downstream AC output

switch and three DC switches at the bottom.

•Do not open the maintenance compartment door on rainy or snowy days. If you need to, take

protective measures to prevent rain or snow from entering the maintenance compartment.

•Do not leave unused screws in the maintenance compartment.

1. Loosen the screws on the

maintenance compartment door.

2. Open the maintenance compartment door and

adjust the support bar.

4. Select a crimping module according to the type of the AC output power cable.

3. Remove the accessories and set them aside.

Multi-core Cable

Single-core Cable

(Optional) Installing the Tracking System Power Cable

4.5

•The tracking system should be equipped with an overcurrent protective device or component.

The length of the cable between the power cable terminal and the overcurrent protection

device or component must be less than or equal to 2.5 m.

•The power supply of the tracking system should be an AC three-phase power grid.

•Keep flammable materials away from the power cable.

•The power cable must be protected with a conduit to prevent short circuits caused by

insulation layer damage.

Removing the Rubber Rings from the Crimping Module

4.4

Use scissors to cut off the joints of the rubber rings to remove them. All rubber rings are

removed in the same way.

Remove the corresponding rubber rings strictly according to the cable diameter range, and

ensure that the crimping module is not damaged. Otherwise, the protection level of the solar

inverter will be affected.

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