Growatt ML33RTA Manual de usuario
Shenzhen Growatt New Energy CO.,LTD
ML33RTA Lithium Ion Standalone Battery
Residential Energy Storage System
Product Manual
Version: V1.0
Date: 2020-10-12
1
Contents
About This Document ............................................................................................................................ 2
1 Important Safety Information ............................................................................................................. 3
1.1 Warning Label .......................................................................................................................................................3
1.2 Precautions ............................................................................................................................................................3
2 Overview............................................................................................................................................... 6
2.1 Appearance and Terminals.....................................................................................................................................6
2.2 Application Scenarios.............................................................................................................................................7
2.3 Technical Parameters.............................................................................................................................................7
3 Storage and Transport ........................................................................................................................ 9
3.1 Storage Requirements ...........................................................................................................................................9
3.2 Transport Requirements.........................................................................................................................................9
4 What You Need .................................................................................................................................. 10
4.1 Tools.................................................................................................................................................................... 10
4.2 Protective equipment .......................................................................................................................................... 10
5 Installation.......................................................................................................................................... 11
5.1 Inspection before Installation ...............................................................................................................................11
5.2 Battery Orientation ...............................................................................................................................................11
5.3 Installation.......................................................................................................................................................... 12
6 Electrical Connection........................................................................................................................ 13
6.1 Power Terminals and Network Ports ................................................................................................................... 13
6.2 Connect One Battery........................................................................................................................................... 13
6.3 Connect Batteries in Parallel............................................................................................................................... 14
7 Operation............................................................................................................................................ 16
7.1 Power on Battery................................................................................................................................................. 16
7.2 Power o Battery................................................................................................................................................. 16
8 Maintenance....................................................................................................................................... 17
8.1 Replace Battery................................................................................................................................................... 17
8.2 Upgrade Firmware .............................................................................................................................................. 17
8.3 Troubleshooting................................................................................................................................................... 19
9 Product Liability ................................................................................................................................ 20
10 Recycle............................................................................................................................................. 21
2
About This Document
Purpose
This document describes the application scenarios, installation, electrical connection, commission and troubleshooting of
ML33RTA, a 3.3 kWh Energy Storage Battery (hereinafter simply put as battery). Before installing and operating battery,
please ensure that you are familiar with product features, functions, and safety precautions as provided in this document.
Target Audience
Installer, operator, commissioning personnel, maintenance personnel of the RESS product
Change History
Version Date Changes Prepared By Reviewed By
1.0 2020-10-08 Initial draft WQ
Guo YH
Wang XP
Ni YL
Symbols and Conventions
Warning and caution messages are listed in the document to remind users, installers and maintainer of safe operation.
Symbol Description
!
WARNING
Indicates a potentially hazardous situation, if not avoided, could result in serious injury or
death.
!
CAUTION
Indicates a potentially hazardous situation, if not avoided, may result in minor or moderate
injury
3
1 Important Safety Information
1.1 Warning Label
Do not dispose battery in household trash. Battery is heavy enough to cause severe
injury.
Recyclable. Keep battery away from children.
Certication in European Union area. Do not reverse polarities.
Risk of electric shock. Do not expose battery to ame.
Explosive gas. Operate as specied by the manual.
Battery may leak corrosive electrolyte. Read the manual before operating.
1.2 Precautions
Risks of electrolyte leakage
＊ Do not subject battery to strong impact.
＊ Do not crush or puncture battery.
＊ Prevent battery from falling. In case of fall, turn o the battery immediately and stop using it.
＊ Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes.
Risks of re
＊ Do not expose battery to direct sunlight.
＊ Avoid contact with conductive objects such as wires.
＊ Keep battery away from re source, inammable, explosive and chemical materials.
＊ Do not dispose of batteries in a re. The batteries may explode.
Risks of electric shock
＊ Do not touch battery with wet hands.
＊ Keep battery away from children and animals.
＊ A battery can present a risk of electric shock and burns by high short-circuited current.
＊ Battery installation and wire connection must be operated by professionals.
Risks of damage
＊ Keep a distance to water source.
＊ Do not subject battery to high voltage.
4
＊ Place battery on a at surface. Do not place any foreign object on top of battery nor step on battery.
＊ Battery-connected PCS should have reinforced insulation.
Table 1-1 Responses to Emergencies
Event Description and recommended actions
Leakage Inhalation: leave the contaminated area right now.
＊ Swallow: induce vomiting.
＊ Contact with eyes: ush eyes with owing water for 15 minutes.
＊ Contact with skin: wash thoroughly with soap and water.
＊ Immediately seek for medical intervention after taking emergency measures.
Fire Battery may catch re when heated above 150℃.
Please implement the following actions:
＊ Extinguish fire before the battery catches fire. ABC or carbon dioxide extinguisher is
recommended.
＊ If the re is too strong to put out, move battery to a safe place before it catches re.
＊ If battery is on re, evacuate people rst before seeking help from professional re protection
personnel.
＊ If battery catches fire during charging, turn off the breaker between battery and PCS when
safety can be guaranteed.
Wet battery If battery became wet or has been submerged in water, do not access it. Immediately contact your
distributor for technical assistance.
Damage Damaged battery is dangerous and must be handled with utmost care. They are not usable for use
and could pose a safety threat to people or property. If battery is suspected to be damaged, stop any
operation and return it to distributor.
5
Nameplate
R2
*76±0.5
*60±0.5
Model:
Nominal Voltage:
Total/Rated Capacity:
Total/Rated Energy:
Ingress Protec�on:
Opera�ng Ambient
Temperature:
Maximum Short Current
and Dura�on:
ML33RTA
51.2V
64Ah/58.6Ah
3276Wh/3000Wh
IP20
-10℃ ~ 50℃
1700A, 2ms
IFpP/16/122/360/[16S]M/-10+50/90
Made In China
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.
Warning Label
WARNING AVERTISSEMENT
1. Do not disassemble or alter the battery in any way.
Ne démontez ni modifiez la batterie en aucune façon.
2. Do not use the battery for purposes not described in its documentation.
N'utilisez pas la batterie à des fins non décrites dans sa documentation.
3. Do not drop, strike, puncture, or step on the battery.
Ne laissez pas tomber, ne heurtez pas, ne percez pas et ne marchez pas sur la batterie.
4. In case of electrolyte leakage, keep leaked electrolyte away from contact
with eyes or skin, immediately clean with water and seek help from a doctor.
En cas de fuite d'électrolyte, gardez l'électrolyte qui fuit loin du contact avec les yeux
ou la peau, nettoyez immédiatement avec de l'eau et demander de l'aide à un médecin.
5. Do not put the battery into a fire. Do not use it or leave it in a place near fire, heaters,
or high temperature sources.
Ne mettez pas la batterie au feu. Ne l'utilisez pas et ne le laissez pas dans un
endroit près de feu, de radiateurs ou de sources de températures élevées.
6. Do not submerge the battery in water, or expose it to moisture.
Ne plongez pas la batterie dans l'eau et ne l'exposez pas à l'humidité.
7. Do not allow the terminals to contact exposed wire or metal.
Ne laissez pas les bornes entrer en contact avec du fil ou du métal exposé.
8. The battery is heavy and can cause injury if not handled safely.
La batterie est lourde et peut provoquer des blessures si elle n'est pas manipulée en toute sécurité.
9. Keep out of reach of children or animals. Tenir hors de portée des enfants ou des animaux.
6
2 Overview
ML33RTA is a 3.3kWh LiFePO4 battery pack. It has a 48V battery module as the main power supply unit which com-
posed of 64Ah cells in one parallel and 16 serial connect (1P16S).
2.1 Appearance and Terminals
The battery is an energy storage unit composed of cells, mechanical parts, battery management system (BMS) as
well as power and signal terminals.
Table 2-1 Mechanical features
Parameter Value
Dimension W445*D131*H399.6 mm
Weight Around 29 kg
Installation Rack-mounted installation
Table 2-2 Ports and terminals
No. Label Name
1 Link-Out Network port 3
2 P+ Positive terminal 1
3 P- Negative terminal 1
4 Link-In Network port 2
5 PCS Network port 1
6 POWER POWER button
LED indicators
Status SOC Indication LED1 LED2 LED3 LED4 LED5
Charging 0%-25.0% ■ ●
25.1%-50.0% ■ ■ ●
50.1%-75.0% ■ ■ ■ ●
75.1%-99.9% ■ ■ ■ ■ ●
100% ● ● ● ● ●
Discharging
& Standby
100%-75.1% ● ● ● ● ●
75.0%-50.1% ● ● ● ●
50.0%-25.1% ● ● ●
25.0%-0% ● ●
445
399.6
131
LED5
LED4LED3LED2LED1
POWER
345
1
2
7
★: Blue LED Blink ●: Blue LED On ■: Blue LED ash display
2.2 Application Scenarios
Battery coordinates with PCS in the residential energy storage system. The typical application scenarios are as shown
below.
Junction BoxJunction Box
The energy produced by PV is optimized to supply loads.
The excess energy is used to charge battery, then export
to grid.
Battery powers loads at nighttime when there is no PV. If
battery energy is insucient, it can supply loads together
with grid.
Junction Box Junction Box
When grid falls, battery and PV can power loads. Battery can be charged by grid. Users are suggested to
store energy from grid to battery when electricity price is
relatively lower.
2.3 Technical Parameters
No. Items Specications
1 Nominal Voltage (V) 51.2V
2 Normal Capacity/Energy 64Ah/3.3kWh
3 Usable Capacity/Energy 58.6Ah/3.0kWh
8
4 Operating Voltage 48 ~ 57.6V
5 Rated Charging Current 32A
5 Rated Discharging Current 42.5A
6 Max. Discharging Power 3kW
7 Peak Discharging Power 4.3kW/5s
8 Max Charging Power 1.5kW
9 IP Protection IP20
10 Working Temperature -10°C~+55°C
11 Storage Temperature -20°C~+45°C
12 DOD 94.5%
13 Cycle Life >3500 (25°C, 60% SOH)
14 Parallel Connection Max .6 packs
15 Communication Port CAN2.0 / RS485
16 Warranty 10 years
17 Certication IEC62619, CE, UN38.3
9
3 Storage and Transport
3.1 Storage Requirements
Battery storage life
Life Temperature Humidity
7 days -30℃to -20℃or 45℃to 60℃5%RH-95%RH
180 days -20℃to 45℃5%RH-95%RH
If the battery is not used for more than 1 week, you need to store it in accordance with the requirement for storage
conditions.
＊ Place battery according to signs on packing box and do not put battery upside down or sidelong.
＊ Store batteries in a place free from direct sunlight and rain.
＊ Keep batteries at least two meters away from a heat source (such as a radiator).
＊ Avoid contacting with corrosive and organic substances (including gas exposure).
＊ Batteries with deciencies should be separated from normal batteries by setting wall between or placing in dierence
re protection zones.
＊ Keep the storage area dry, clean and well ventilated.
＊ Recharge the battery that has been stored for over 12 months.
Set “CV=55V, CC=16A” and charge the battery till LED2 ickers.
3.2 Transport Requirements
Battery has cleared UN38.3 (Section 38.3 of the Seventh Revised Edition of the Recommendations on the Transport of
Dangerous Goods: Manual of Tests and Criteria) and SN/T 0370.2-2009 (Part 2: Performance Test of the Rules for the
Inspection of packaging for Exporting Dangerous Goods). The battery is classied as class 9 dangerous goods, and is
subject to land and water transportation. It is mandatory to report to the airline company and obtain approval before air
transport.
＊ Before transportation, press POWER button for two seconds and ve LED lights icker for three times to power o
battery.
＊ During transportation, put battery at, do not have battery stand on or lean against the oor to avoid possible crash.
＊ Maintain temperature between -20℃to 45℃ during the transportation.
＊ Prohibit mixing up with explosive, inammable or toxic objects.
＊ Use van-type vehicle including container and metallic van-type vehicle. Platform vehicle and convertible are
prohibited.
＊ Do not pile up foreign objects on the top of battery. Four batteries at most can be piled up.
＊ Maintain original packaging and keep labels complete and recognizable.
＊ Prevent from direct sun exposure, rain, condensation and mechanical damages.
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