Huawei SUN2000-90KTL Bedienungsanleitung

HUAWEI TECHNOLOGIES CO., LTD.

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series

Quick Guide

Issue: 08

Part Number: 31509903

Date: 2020-03-15

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 qualified and trained electrical technicians are allowed to operate the device. Operators

should understand the composition and working principles of the grid-tied PV power system and

local standards.

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

information and safety precautions. Huawei shall not be liable for any consequences caused by

the violation of the storage, transportation, installation, and operation regulations specified in this

document and the user manual.

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

protective equipment (PPE).

(1) Maintenance compartment door

(2) LED indicators

(3) Host panel

(4) Mounting bracket

(5) Heat sink

(6) Communications cable glands

(COM1/COM2/COM3)

(7) USB port (USB)

(8) Auxiliary handles

(9) DC input terminals (+/

–; controlled by DC

SWITCH 1)

(10) DC input terminals (+/

–; controlled by DC

SWITCH 2)

(11) AC output cable gland (AC OUTPUT)

(12) Reserved cable gland (RESERVE)

(13) DC switch 1 (DC SWITCH1)

(14) DC switch 2 (DC SWITCH 2)

Recommended: 600 mm ≤ bottom space ≤ 730 mm

2Installation Requirements

Dimensions

Angle Space

3Installing the SUN2000

•The M12x40 bolt assemblies are delivered with

the SUN2000. 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 from the mounting

bracket and save it for later use.

•This document introduces how to install the

SUN2000 on a support as an example. For

details about wall-mounted installation, see the

user manual.

Position for bundling a

security Torx wrench

1. Install the mounting bracket.

3. Install the SUN2000 on the mounting

bracket. 4. Tighten security Torx screws.

You are advised to apply anti-rust paint

on the hole positions for protection.

2. For the SUN2000-90KTL-H2 used in Australia, install the delivered screw for locking each DC

switch.

No.

Cable

Type

Recommended

Conductor

Cross

Sectional Area

Outer

Diameter

PE cable

Outdoor copper cable and M8

OT/DT terminals

≥ 16 mm

N/A

(Optional) Tracking

system power cable

Three

core outdoor copper cable

with dual

-layer protection

6 mm

–18 mm

AC output power cable

•

If you connect a PE cable to

the PE point on the enclosure,

you are advised to use a

three-core (L1, L2, and L3)

outdoor copper cable and

M10 OT/DT terminals (L1, L2,

and L3).

•

If you connect a PE cable to

the PE point in the

maintenance compartment,

you do not need to prepare a

PE cable separately but are

advised to use a four-core

(L1, L2, L3, and PE) outdoor

copper cable, M10 OT/DT

terminals (L1, L2, and L3),

and M8 OT/DT terminals (PE).

•

L1, L2, L3:

35 mm2

•

PE: ≥ 16

mm2

–57 mm

DC input

power

cable

Amphenol

UTX PV

Connectors

PV cable that meets the 1500 V

standard

–6 mm2

4.5

–7.8 mm

MC4 EVO2

Connectors

–6 mm2

4.7

–6.4 mm

RS485 communications

cable (connected to a

terminal block;

recommended)

Multi

-paired, individually foil

shielded cable that complies with

local standards and M6 OT

terminals

mm2

–18 mm

RS485 communications

cable (connected to a

network port)

CAT 5E outdoor shielded

network cable with internal

resistance ≤ 1.5 ohms/10 m, as

well as the shielded RJ45

connector

N/A

–9 mm

Preparing Cables

4.1

4Electrical Connections

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

Reserved PE point

Installing the PE Cable (on the Enclosure)

4.2

•It is recommended that the PE cable

be connected to a nearby PE point.

Connect the PE points of all

SUN2000s in the same PV 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.

1. Loosen the screws on the maintenance

compartment door.

Opening the Maintenance Compartment Door

4.3

•Do not open the host panel of the SUN2000.

•Before opening the SUN2000 maintenance compartment door, turn off the downstream AC

output switch and two DC switches at the bottom.

•Do not open the maintenance compartment door in rainy or snowy days. If you must, take

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

•Do not leave unused screws in the maintenance compartment.

2. Open the maintenance compartment door

and adjust the support bar.

3. Remove the cover and hang it on the hook of the enclosure door.

Installing the AC Output Power Cable

4.4

•This document introduces how to install the four-core AC output power cable, which can be a

reference for installing the three-core cable. The three-core cable does not need a PE cable

installed in the maintenance compartment.

•To avoid damaging the rubber liner, do not route a cable with a crimped OT/DT terminal directly

through it.

•Do not adjust the cable when the sealing nut is tightened. Otherwise, the rubber liner will shift,

which affects the IP rating of the device.

•Ensure that AC terminations are secured. Failing to do so may cause the SUN2000 to

malfunction or damage to its terminal block by issues such as overheating.

•Sufficient slack should be provided in the PE cable to ensure that the last cable bearing the

force is the PE cable when the AC output power cable bears pulling force due to force majeure.

After the AC output power cable is installed, seal the cable gland.

Number of

PV Strings

Terminal Selection

Number of

PV Strings

Terminal Selection

Connects to routes 2, 4, 6, 8, 10,

and 12.

Connects to routes 2, 4, 6, 8, 9, 10,

and 12.

Connects to routes 1, 2, 4, 6, 8, 9,

10, and 12.

Connects to routes 1, 2, 4, 6, 7, 8, 9,

10, and 12.

Connects to routes 1, 2, 4, 6, 7, 8, 9,

10, 11, and 12.

Connects to routes 1, 2, 3, 4, 6, 7, 8,

9, 10, 11, and 12.

For example, if the number of input routes is 6–11, the recommended DC input terminals are as

follows:

1. Use the positive and negative metal contacts and DC connectors delivered with the SUN2000.

Using other positive and negative metal contacts and DC connectors may result in serious

consequences. The caused device damage is not covered under any warranty.

2. Before connecting the DC input power cable, label the cable polarities to ensure correct cable

connections. Otherwise, the SUN2000 may be damaged.

3. Measure the voltage at the DC input end using a multimeter. If the voltage is a negative value,

the DC input polarity is incorrect. Correct the polarity. If the voltage is greater than 1500 V, too

many PV modules are configured to the same string. Remove some PV modules.

4. If the DC input power cable is reversely connected and the DC switch is turned on, do not

perform operations on the DC switch or the positive/negative connectors immediately. Otherwise,

the device may be damaged. The caused device damage is not covered under any warranty.

Wait until the night when solar irradiance declines and the PV string current drops to below 0.5 A.

Then turn the two DC switches to the OFF position, remove the positive and negative DC input

power connectors, and correct the polarity of the DC input power cable.

•Ensure that the PV module output is well insulated to ground.

•Before inserting the positive and negative connectors respectively into the positive and negative

DC input terminals of the SUN2000, ensure that the DC voltage does not exceed 1500 V DC using

a multimeter and that the cable polarities are correct. Otherwise, the SUN2000 will be damaged.

Installing the DC Input Power Cable

4.5

The SUN2000 provides 12 DC

input terminals, which are

controlled by its two DC switches.

DC SWITCH 1 controls DC input

terminals 1–6 (MPPT1–3) and DC

SWITCH 2 controls DC input

terminals 7–12 (MPPT4–6).

When DC inputs are not fully configured, the input terminals should meet the following requirements:

1. Evenly distribute DC input power cables on the DC input terminals controlled by the two DC

switches.

2. Maximize the number of connected MPPT circuits.

Positive connector

Negative

connector

Positive metal contact

Negative metal contact Ensure that the cable

cannot be pulled out after

being crimped.

UTXTC0003

(Amphenol)

Click

Ensure that the

locking nut is

secured.

UTXTWA001

(Amphenol)

Click

DC voltage

measurement range

≥ 1500 V DC

Amphenol UTX PV Connectors

Crimp the metal contacts using crimping tool UTXTC0003 (Amphenol, recommended) or

UTXTC0002 (Amphenol).

MC4 EVO2 PV Connectors

13001462

(STAUBLI)

32.6020-22100-HZ

(STAUBLI)

Positive connector

Negative

connector

Positive metal contact

Negative metal contact Ensure that the cable

cannot be pulled out after

being crimped.

Click

Ensure that

the locking

nut is

secured.

Click

DC voltage

measurement

range ≥ 1500 V DC

Installing the RS485 Communications Cable

4.6

1. When routing the communications cable, separate it from power cables and connect the shield

layer to the ground point to prevent communication from being affected.

2. The RS485 communications cable can connect to a terminal block or an RJ45 network port.

Select one in actual installation.

Connecting to a Terminal Block (Recommended)

No.

Definition

Description

No.

Definition

Description

RS485A IN

RS485A, RS485

differential signal+

RS485A OUT

RS485A, RS485

differential signal+

RS485B IN

RS485B, RS485

differential signal

–

RS485B OUT

RS485B, RS485

differential signal

–

After the RS485 communications cable is installed, seal the cable gland.

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