Sungrow SC50HV User manual

SC50/60/75HV Quick Installation

Guide

This guide provides a general instruction of the installation procedures of

SC50/60/75HV.

In no case shall this guide substitute for the user manual or related notes on

the device.

Make sure to read over, fully understand and strictly follow the detailed

instructions of the user manual and other related regulations before installing

the equipment. The user manual can be downloaded by visiting the website

at http://support.sungrowpower.com/; or it can be obtained by scanning the

QR code on the side of the equipment or the back cover of the Quick

Guidance.

Any violation could result in personal death or injury or device damage.

1 Unpacking and Inspection

Step 1Remove the backplate and fasteners from the packaging.

Step 2Inspect the converter for visible damages and check the

completeness of the delivery contents according to the inner

packing list.

Contact your supplier if any of the contents is missing. The converter

is unavailable if any damage is detected.

ABC

FD E

Fig. 1-1 Scope of delivery

*Images shown here is for reference only! Actual product you receive may

differ.

Item

Name

Description

PCS unit

---

Backplate

It is used for mounting PCS onto the wall.

Documents

Documents include quality certificate, packing list,

product test report, and quick user manual.

Fastener set

Six units. It is used for fastening backplate onto metal

frame.

Fix screws

2, M4×16 screws for fix the PCS to the backplate.

Spare screw

6, M6×12 screws for lower connection cabinet

2 Mounting Converter onto the

metal frame

2-1 Installation Site Selection

Requirement for wall materials

material

Flammable wall

Flammable material or

gas near theinstallation

Requirement for installation height

Ground

Requirement for installation angle

Requirement for installation space (The fans are maintained on the left side

of the converter, and a larger clearance is required.)

Cool air Hot air

≥800mm/31.5in≥600mm/23.6in

≥450mm/17.7in

Ground

2-2 Install the converter

Select the installation location and regulate the clearances of multiple

converters, referring to the user manual.

Move the converter to the installation site with the help of another person or

the lifting device by means of the handles.

Install the converter onto metal frame as following procedures.

Step 1Remove the backplate and fasteners from the packaging.

Step 2Place the backplate to the chosen metal frame and adjust it to proper

position and height.

Step 3Mark the position for holes drilling according to the holes position of the

backplate.

Step 4Drill holes according to the marks make before. If the shape of the metal

frame does not match the backplate, re-drill holes on the backplate

according to the metal frame chosen.

Step 5Secure the backplate to the metal frame firmly by the supplied fastener.

Torque of the fasten nut is 35 Nm.

Install backplate E

Step 1Lift the converter above the backplate and then slide down to make sure

they match perfectly.

Step 2After putting the converter on the backplate, secure the converter to the

backplate with two M4×16 screws (fix screw hole has its own nut).

Mount the PCS

No.

Name

Description

Hexagon nut

M10

Spring

washer

Flat washer

Screw bolt

M10*45

Metal frame

Backplate

3 Electrical Connection

Death hazards due to high voltage existing inside the converter!

Make sure that all the DC and AC cables to the converter are not live before

you start the electrical work.

Do not turn on the AC side or DC side circuit breaker until all converter

electrical connections have completed.

3-1 Open the Connection Cabinet

Loose the six screws on the front cover of the connection cabinet and remove

the front cover to see the internal layout of the connection cabinet.

Com.1

Com.3

Com.2

Com.4

BAT Input AC Output PE Cable

8 9 10 11

*Image shown here is for reference only. Actual product you receive may differ.

No.

Name

Description

Start / Stop button

Start / Stop the PCS.

Battery switch

Protective components to safely disconnect

DC side current.

No.

Name

Description

Configuration circuit

board

Communication cable connection and

configuration

Battery crimping terminal

Battery input cable access

AC crimping terminal

AC output cable access

PE terminals

PE cable access

AC switch

Protective components to safely disconnect

from AC side.

Communication cable

glands

For Communication cable connection

Knockout diameter for COM cable is 28.5mm

Battery cable gland

For battery cables connection

Knockout diameter for BAT cable is 75.5mm

AC cable gland

For AC cables connection

Knockout diameter for AC cable is 75.5mm

PE cable gland

For PE cable connection

3-2 Cables Selection

Second PE Cable

The cross-sectional area of the second PE cable shall be exactly the same

with that of the PE cable of theAC cable.

AC Cable

The cross-section of the AC cable conductor must be sized in order to prevent

accidental disconnections of the PCS from the grid due to high impedance of

the cable that connects the PCS to the power supply point.

No.

Description

Remark

Protective layer /Conduit

Outer diameter: 22mm~33mm /

0.87in~1.30in

Length of insulation to be

stripped off

Refer to Fig. 3-1Crimping the lugs

Insulation layer

Cross section of AC

cables

Range: 25mm2-120 mm2/ 4AWG~4/0AWG

Internal PE Cables

Outer diameter

Cross section

5mm~10mm / 0.20in~0.40in

6 mm2–16 mm2/ 10AWG~6AWG

Recommended cable specifications inAustralia

Outer diameter

Cross section

6mm~18mm / 0.30in~0.70in*

6 mm2~16 mm2/ 10AWG~6AWG

DC cables:

Outer diameter

Cross section

22mm~33mm /

0.87in~1.30in

25mm2-120 mm2/ 4AWG~4/0AWG

RS485 communication cables

Shielded twisted pair cables or Shielded twisted pair Ethernet cables.

3-3 Aluminum cable requirements

If the aluminum cable is selected, in order to ensure a reliable electrical

connection, use the the copper and aluminum conversion terminal to avoid

direct contact between the AC copper bar and the aluminum cable.

Aluminum cable

Conversion terminal

Directly connecting the aluminum cable to the copper bar will cause

abnormal operation or even device damage.

3-4 Second PE Cable Connection

A second protective earth (PE) terminal is equipped at the side of the PCS. Be

sure to connect this PE terminal to the PE bar for reliable grounding and ensure

that the grounding resistance should be less than 10 Ohm.

In European and Asia-Pacific regions, this secondary protective

grounding connection cannot replace the connection of the terminals

in the AC wiring. Both shall be reliably grounded. Otherwise, Sungrow

will not take any responsibility for the possible consequences.

6~7N.m

In other regions (such as North America), the secondary protective

grounding can be implemented in accordance with the relevant

standards of the country/region.

3-5 AC Connection

Install an AC circuit breaker (recommended specification 125A/690V)

between the PCS and the AC side.

Step 1Disconnect AC circuit breaker to prevent it from inadvertently

reconnecting.

Step 2Loosen the six screws（M6×16）on the lower connection

cabinet.

Step 3Strip off AC cables as shown below.

For flexible cables (stranded wires), use crimping lugs.

Step 4Strip the protection layer and insulation layer by specific length, as

described in the figure below.

B=E+(2~3)mm

Fig. 3-1 Crimping the lugs

Step 5Crimp the cord end terminals.

Step 6Loosen the swivel nut of the gland terminal (Marked as “AC Output”) and

select an appropriate seal according to cable outer diameter. Lead the

cable through the swivel nut and seal successively.

Step 7Connect theAC cable to the corresponding terminals.

L1 L2 L3

M10

34~40 N.m

* Pictures here are indicatively only. Product in kind prevail.

Please avoid squeezing the cable insulation layer into the AC

terminal. Improper connection may affect the normal operation of the

PCS.

During AC cable connection, the cables inside the lower part of the

device should be bent to be surplus in length. In this way, cable

dropping or loosening, which can cause arc or other problems

impairing functionality of the device, due to self-weight of the cables

in case of land subsidence is avoided.

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