Huawei SUN2000-3.8KTL-USL0 Manual de usuario

HUAWEI TECHNOLOGIES CO., LTD.

SUN2000-(3.8KTL, 5KTL, 7.6KTL)-USL0

Quick Guide

Issue: 02

Part Number: 31509357

Date: 2018-05-10

(1) Host panel

(2) LED indicators

(3) Maintenance compartment door

(4) Mounting bracket

(5) Heat sink

(6) DC switch (DC SWITCH)

(7) Antenna port (ANT)

(8) Battery cable waterproofing bolt (BAT, 3/4 in.)

(9) Ventilation valve

(10) Backup enable button (MANUAL STAND

ALONE)

(11) Signal cable waterproofing bolt (COM, 3/4 in.)

(12) PV input power cable waterproofing bolt (PV,

3/4 in.)

(13) AC output power cable waterproofing bolt for

critical load (BACKUP, 3/4 in.)

(14) AC output power cable waterproofing bolt for

home load (AC GRID, 3/4 in.)

rights reserved.

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 the accuracy of its 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. 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 become 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 your safety, wear proper personal protective

equipment (PPE).

NOTICE

2Installation Requirements

Angle Space

Dimensions

3System Installation

Installing the SUN2000

3.1

•Select tightening screws suitable for the load-bearing structure. This section introduces how to

install the SUN2000 on a wall. For details about the support-mounted installation, see the user

manual.

•Prepare an anti-theft lock suitable for the lock hole diameter Ф8 mm (0.31 in.) by yourself.

NOTE

1. Install the mounting bracket (for example, on a frame post).

Marking-off Template

Load

Bearing

Structure

Frame post

(recommended)

Brick wall/Fiber

cement composite

panel

Plywood

Tightening

Screw

Type

M6 tapping

screw

M6 expansion bolt

M6 expansion anchor

screw

Screw

Quantity

4 PCS

Screw

Appearance

Hole

Combination

in Marking

off Template

1, 2, 3, 4

3, 4, 5, 6

4, 5, 6

Frame post

Bottom alignment line for the

mounting bracket (top)

2. Install the SUN2000 on the

mounting bracket. 3. Tighten the hex socket

screws. 4. (Optional) Install an anti-

theft lock.

Wall panel

•Do not open the host panel of the SUN2000.

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

output switch and the bottom DC switch.

•Do not open the maintenance compartment door during rainfall or snowfall. 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.

Installing the SIM Card

3.2

•If the 4G function is configured, you need to prepare a standard SIM card size: 25 mm x 15 mm

(0.98 in. x 0.59 in.). After being installed with the SIM card and being powered on, the 4G module

can access the 4G network without being commissioned. Do not remove the 4G module when

installing the SIM card.

•Install the SIM card in the direction shown on the arrow on the slot.

•To install the SIM card, press it in place until it locks.

•To remove the SIM card, push it inward and then let go to eject it.

NOTE

NOTICE

4Electrical Connections

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

•Ensure that power is off before connecting cables.

Preparing Cables

4.1

NOTICE

No.

Cable

Type

Conductor Cross

-Sectional

Area

output

power

cable

AC output

power cable

for home load

•

Use cables that can withstand 90°

(194°F) or 105°C (221°F).

•If the output mode is set to L1/L2/N,

use four single-

core outdoor copper

cables (L1, N, L2, PE).

•

If the output mode is set to L1/L2,

use three single-core outdoor

copper cables (L1, L2, PE).

•

L1, N, L2: 12–6 AWG

(SUN2000-3.8KTL-

USL0)/

10–6 AWG(SUN2000-

5KTL-

USL0)/

6 AWG(SUN2000-7.6KTL-

USL0)

•

PE: 6 AWG

AC output

power cable

for

critical

load

•

Use cables that can withstand 90°

(194°F) or 105°C (221°F).

•

Two single-core outdoor copper

cables (L1, L2)

–6 AWG

Preparing the Threading Tube

4.2

The specifications of the tubes should comply with those of the waterproofing bolts. For example,

for a 3/4 in. waterproofing bolt, a 3/4 in. tube is recommended. The tube appearance shown in the

following figure is for reference only. The actual tube is the standard.

Nut Conduit

Cable hole diameter at the bottom

Fitting

No.

Cable

Type

Conductor Cross

Sectional Area

PV input power cable

•

PV cable that meets the 600 V standard

•

Use cables that can withstand 90°C

(194°F) or 105°C (221°F).

•

Single-core outdoor copper cable

–8 AWG

(Optional) Ground

cable at the PV side

(GND)

•

Use cables that can withstand 90°C

(194°F) or 105°C (221°F).

•

Single-core outdoor copper cable

6 AWG

(Optional) Battery

cable

•

PV cable that meets the 600 V standard

•

Use cables that can withstand 90°C

(194°F) or 105°C (221°F).

•

Single-core outdoor copper cable

–8 AWG

(Optional) Signal cable

Multi

-paired and individually foil-shielded

cable that complies with UL2919, CM/CMG

(NEC type), or CMH (CSA type)

–16 AWG

Threading tube

Installing the AC Output Power Cable

4.3

•Ensure that the exposed core wire is completely inserted into the cable hole and connected

securely. Failing to do so may cause the SUN2000 to malfunction or be damaged.

•If the AC output power cable bears pulling force because the inverter is not installed securely,

ensure that the last cable that bears the force is the PE cable.

•In the following figure, 1.0 mm x 5.5 mm (0.04 in. x 0.22 in.) is the thickness and width of the

screwdriver blade.

NOTICE

1. Connect the AC output power cable for home load (L1/L2/N is used as an example here).

L1/L2/N

L1/L2

2. Connect the AC output power cable for critical load.

Installing the PV Input Power Cable

4.4

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

•Ensure that the PV input power cable is correctly connected and that the voltage does not

exceed 500 V DC. Otherwise, the SUN2000 will be damaged.

•The output wiring terminals of PV modules or connected optimizers may have hazardous

voltages. Touching the terminals may cause electric shock. Before connecting PV input power

cables, ensure that the DC SWITCH of the SUN2000 is OFF and that the DC input terminals of

the SUN2000 have no voltage.

DANGER

•The ground cable at the PV side (GND) is connected to the ground point on the PV module

support, ensuring reliable connection between the PV module frame and the SUN2000 ground

point.

•Ensure that the positive and negative cables of PV strings are connected to the PV positive (+)

and negative (–) terminals respectively.

NOTICE

Installing the Battery Cable

4.5

•Use dedicated insulation tools when

connecting cables. Otherwise,

serious injury may occur due to the

high battery voltage.

•Ensure that the battery cable is

correctly connected. Ensure that the

polarities are not reversed.

For details about how to install the battery

cable, see section 4.4 Installing the PV

Input Power Cable.

DANGER

Installing the Signal Cable

4.6

•When laying out a signal cable, separate it from the power cable to avoid signal interference.

•Cut off extra wires from the signal cable to be flush with the protection layer. Ensure that the

exposed core wire is completely inserted into the cable hole and connected securely.

No.

Label

Definition

Description

RSS+

EMERGENCY STOP switch signal

input

Can connect to the signal port on

the emergency stop switch (NC).

RSS–

EN+

Enable signal+

Can connect to the battery enable

signal port and RS485 signal port.

EN–

Enable signal

–

485A2

RS485A

, RS485 differential signal+

485B2

RS485B

, RS485 differential signal–

485A1

RS485A

, RS485 differential signal+

Can connect to the RS485 signal

port on the energy meter.

485B1

RS485B

, RS485 differential signal–

NOTICE

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