BYD Battery-Box Pro series Manual de instrucciones

BYD Battery-Box PRO

Service Guideline

Version 1.0

Valid for PRO 2.5-10.0 and PRO 13.8

Important:Theinstallation and allotherkindsofworks or measurementsincombinationwiththeBattery-Box

are only allowed by professional and qualified electricians.

This manual is a shortened assistance for the installation

service of the Battery-Box PRO and does not replace

the original manual, which can be found on www.alpspower.com.au or www.byd.com. The installation must

be carried out by a trained and qualified electrician. Attention: High Voltage! Improper handling can cause danger

and damage.

CONTENT

CONTENT 2

CHECK INSTALLATION 3

1.1 System Components and general protection mechanisms 3

ERROR ANALYSIS 5

2.1 Installation or commissioning issues 5

2.2 Battery shutdown or inverter reports battery failure 6

2.3 Unusual behavior of a working system 8

SERVICE TASKS 9

3.1 Voltage measurement 9

3.2 Emergency charge 9

3.3 Battery information Query and Read Alarm history 9

3.4 Software update 9

SERVICE CONTACT 10

CHECK INSTALLATION

Please proceed first with the installation steps by:

No.

Name

Description

Inverter installed

Please make sure that the connection between the Battery-Box and the inverter

correctly?

and the installation of the inverter have been carried out correctly. If in doubt,

follow the instructions of the inverter manufacturer.

IMPORTANT: Please install the latest software on the inverter.

Configuration

Please double check if your system and application is according to the Compatible

Inverter List of BYD (available at www.alpspower.com.au)

Please check the software version of the inverter is at least the minimum version

stated in the compatible inverter list of BYD (available at

www.alpspower.com.au)

DC Power Cable

Make sure that +and -are properly connected.

Communication cables

Please check:

-In some cases the cable between the battery CAN port and the inverter must be

specially made. Please check the specifications in the installation manual.

- Recommended CAT5 or higher;

- Check the cables and replace them if necessary

- Check if all Cables inside the battery (Battery Modules to BMS) are ok, and

reinsert them if necessary

Grounding

Battery-Box connected directly to the ground-bus of the house.

The battery must not be earthed via the inverter! Otherwise, communication

problems are possible.

Correct Address

Is the ADDR (address) Switch according to the manual?

1 = 10000

2 = 01000

3 = 11000

4 = 00100

...

Correct Restart (!)

Has the system been restarted correctly before commissioning? During the restart

process there should not be any LED blinking or on! (Important! The BMU and BMS

LEDs must be off completely.)

Checking the correct

The system runs properly if:

operation

-BMU LED is constant green

- BMS of battery shows constant green or charging / discharging

- No error messages on the inverter

- Inverter displays SOC of Battery correctly

- System charges

discharges

IMPORTANT: If you can not complete the commissioning, then turn off the battery before you leave the site.

1.1

System Components and general protection mechanisms

The Battery consists of the BMU, Cables, BMS and Battery Cells.

The

BMU

manages the communication between the inverter and all the batteries in the system. The BMU reports the safe

working limits, battery status and battery alarms to the inverter. Therefore, if communication is not established correctly or lost

the BMU will shutdown all the batteries. Only one BMU is needed and in use for one battery cluster. (See installation manual)

The BMS is included in each battery module (B-plus 2.5) or in each cabinet (B-Box 13.8). The BMS balances and protects the

battery cells and reports status and alarms to the BMU. In the case that an alarm is present and the BMU fails to protect the

system, the BMS may shutdown the battery as a precaution.

ERROR ANALYSIS

Please refer to the general steps before proceeding, see chapter 1.

If you are having problems with the installation or commissioning please refer to section 2.1

If one or more of the batteries has shutdown or stopped working please refer to section 2.2

If a working system is misbehaving please refer to section 2.3

2.1

Installation or commissioning issues

An installation will be successful when the

battery detects the inverter (represented by

a solid GREEN RUN LED in the BMU-diagram

in the right), the inverter detects the battery

(In general you will be able to see BYD

B-Box in the inverter interface) and the

battery is capable of charging and

discharging for at least 5min.

If the above is not true please take a look at the number of times the BMU RUN LED is blinking. Please note in

most cases this is not related to the battery software so please review the installation first.

NO.

Blin

Cause

Corrective measures

BMU cannot

communicate with

inverter

1. Review in detail the commissioning steps in the inverter manual

2. Confirm you are using the CAN cable recommended in the BYD

and inverter manual

3. Exchange the cable between the BMU and Inverter

BMU cannot

communicate with any

battery

1. Check the addresses of all the modules

2. Replace the communication cable between the BMU and the first

battery

BMU cannot

communicate with one

/ some batteries

1. Check if any battery has a green side to side scrolling light

2. Put the address to 00000 and change back to the correct address

3. Replace the communication cables between batteries

Battery Damage

1. Check how to proceed with RED LED below

If the communication problems persist please try to commission the system with 1 battery only and if it is

successful add the batteries gradually to the system until you identify the one that doesn't communicate. If the

problems persist please try a different BMU or a different master inverter if available.

Always do a correct restart (all LEDs have to be completely off (also no blinking) - this can take some minutes)

2.2

Battery shutdown or inverter reports battery failure

Yellow ARM light: Temporary issue → The system or the user can take action to correct it

If the yellow light doesn’t disappear after a few minutes please review the electrical

installation according to the below legend.

Alarm:

If the yellow ARM light is on, shortly press Reset (ON/OFF) Button and observe how often the LED blinks

NO.

Blink

Cause

Corrective measures

Cell or B-plus Undervoltage

Charge

Charge overcurrent

Close the input and check it.

Charge overcurrent in the low

Temperature

Reduce the charging current

Charging short circuit

Eliminate short circuit

discharging short circuit

Eliminate short circuit

Parallel short circuit

Eliminate short circuit

Discharge overcurrent

protection

Close the load. Check the load power.

High temperature protection

Power off the system. Find the cause of the high temperature. Open

the exhaust fan or air conditioner to cool down.

Low temperature protection

The temperature is too low to turn on the heating up

overvoltage protection

discharge.

Red ERR light: Permanent issue → A component might have been damaged

For 2.5 please see below table and report to your local service partner

For 13.8 we need to confirm if the issue is in the battery, BMS or sampling cable before

reporting to the local service partner.

For this purpose we recommend the following test: Change BMS A from Battery A (with

error) to Battery B and BMS B to Battery A. Keep the sampling cables in the same battery.

- If the error stays in the same battery, either the cabling or the batteries might be faulty

- then do the same with the cabling - and exchange this with the other tower.

- If the error moves with the BMS, probably the error is inside the BMS

- If the error disappears it was probably from a loose contact between cables.

Error:

If the red ERR light is on, shortly press Reset (ON/OFF) Button and observe how often the LED blinks

No.

Blin

Cause

Corrective measures

Voltage sensor failure

Read the history alarm information. Check that the sampling line is in

good contact.

Temperature sensor

failure

Read the history alarm information. Check that the sampling line is in

good contact.

Charging circuit failure

Read the history alarm information.

Discharging circuit failure

Read the history alarm information.

cell brokened

Read the history alarm information

536 Communication failure

Read the history alarm information.

2.3

Unusual behavior of a working system

Case 1: Current too low

If available please check the charge/discharge current limit from the inverter data. This value

is provided by the battery to the inverter. This value may vary depending on the

circumstances, such as SOC close to 0% or 100%, alarms or temperature below 12 degrees

(See User manual for details on derating).

If the real current is below the current limit set by the battery please check the remaining

components in the system

Case 2: Battery cannot charge/discharge

Please follow the recommendations for case 1 first. When to charge or discharge is decided

by the inverter with the data provided by the meter or CT clamp. Please check if those

components are communicating properly and no alarms are present. Alternatively check with

the inverter provider regarding the correct working modes and parameters for your

installation.

Case 3: Abnormal SOC or SOC jumps

There can be two causes for this issue.

Lack of calibration: LFP batteries have a very stable voltage curve and only show meaningful

changes of voltage when SOC is close to 0% or 100%. Therefore, it is important to let the

batteries charge completely with certain regularity. One time should be enough but if the

problem persists please perform several full cycles from close to 0% SOC until 100% SOC.

Small loads for a large period of time: Some devices in an energy storage system are

is a limit to the current measurement precision of the batteries, any load below that will not

be measured so it will not have an influence in the SOC calculation. Therefore, if the system

is idle or under a very small load for a long period of time it is possible that the SOC shown

is not the real one. Once that occurs please perform a calibration cycle.

SERVICE TASKS

In some cases you might be asked to perform additional measurements or tasks to solve a service case

3.1

Voltage measurement

ATTENTION: High voltage!

The nominal voltage modules by 50V.

Measure Voltage on BMS (should be about 50V):

PRO 2.5-10.0 (B-PLUS 2.5): PRO 13.8 (BMS):

For PRO 13.8: If the measured voltage deviates significantly from the nominal value, please measure the voltage

directly on the two battery modules DC ports. (Nominal voltage per battery should be around 25 V).

3.2

Emergency charge

See emergency charge guide

3.3

Battery information Query and Read Alarm history

Manual provided by Service partner

3.4

Software update

Manual provided by Service partner

SERVICE CONTACT

Please note that this document is intended as a quick reference guide to quickly resolve common problems.

Further information and detailed installation assistance can be found at

www.alpspower.com.au

To ensure a smooth process, please register yourself and the system under

www.alpspower.com.au

For further help please contact:

ALPS Power

Mail: service@alpspower.com.au

Phone: +61 2 8005 6688

IMPORTANT:

In order to be able to process a service case, it is absolutely necessary to get the serial number of the Cabinet

BMS and all error-specific information, see the table below:

No.

Name

Description

SerialnumberCabinet/

BMS / Module

At the cabinet or on the BMS

Photos

Photos showing inverter errors

cabling

setup

Video

Video that shows the LED behaviour

Voltage

Voltage of the Battery according to Section 3.1

Serial number of the faulty

module

(Note:only necessary,ifa

faulty module was found!)

On the module directly

Inverter serial number and

model

Important for BYDto analyze and resolve the problem at system level with the

inverter partner.

If necessary: Delivery

address

If replacement parts are required we need:

Complete delivery address (including country)

Contact person

Telephone number

Email address

Additional information

If available, please support us with additional information (eg comments /

informationdisplayedoninverter

additionalphotosofthesystem

...).

Inverter Error Messages

Please record all inverter error messages - if possible with pictures, or Data sets

Inverter Portal Access

In some cases it can be helpful to get access to the inverter portal

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