POWERBOX Pro MikroTik Routers and Wireless 10kW

POWERBOX Pro
User Manual

Revision History

Statement of Law

• Copyright of this document belongs to Daqin New Energy Tech (Taizhou) Co., Ltd.
• No part of this documentation maybe excerpted, reproduced, translated, annotated or duplicated in any form or by any means without the prior written permission of Daqin New Energy Tech (Taizhou) Co., Ltd.
• This product complies with the design requirements of environmental protection and personal safety. The storage, use and disposal of the products shall be carried out in accordance with the product manual, relevant contract or relevant laws and regulations.
• Customer can check the related information on the website of Daqin New Energy Tech (Taizhou) Co., Ltd. when the product or technology is updated.
• Please note that the product can be modified without prior notification.

Safety Precautions

Warning

• Please do not put the battery into water or fire, in case of explosion or any other situation that might endanger your life.
• Please connect wires properly while installation, do not reverse connect.
• To avoid short circuit, please do not connect positive and negative poles with conductor on the same device.
• Please avoid any form of damage to battery, especially stab, hit, trample or strike.
• Please shut off the power completely when removing the device or reconnecting wires during the daily use or it could cause the danger of electric shock.
• Please use dry powder extinguisher to put out the flame when encountering a fire hazard, liquid extinguisher could result in the risk of explosion.
• For your safety, please do not arbitrarily dismantle any component in any circumstances.
  The maintenance must be implemented by authorized technical personnel or our company’s technical support. Device breakdown due to unauthorized operation will not be covered under warranty.

Caution

• Our product have been strictly inspected before shipment. Please contact us if you find any abnormal phenomena such as device outer case bulging.
• The product shall be grounded properly before use In order to ensure your safety.
• To assure the proper use please make sure parameters among the relevant device are compatible and matched.
• Please do not mixed-use batteries from different manufacturers, different types and models, as well as old and new together.
• Ambient and storage method could impact the product life span, please comply with the operation environment instruction to ensure device works in proper condition.
• For long-term storage, the battery should be recharged once every 6 months, and the amount of electric charge shall exceed 80% of the rated capacity.
• Please charge the battery in 18 hours after it fully discharged or over-discharging protection mode is activated.
• Formula of theoretical standby time: T=C/I (T is standby time, C is battery capacity, I is total current of all loads).
• The surface of the product cabinet is affixed with a torn invalid label. Therefore, before opening the cover to change the DIP switch mode, you need to contact DYNESS and inform the product ID. DYNESS will record this battery ID and authorize the opening operation to be performed. Except for changing the DIP switch mode, no other operations are allowed. In the next stage, you can log in to apply for operations directly on the DYNESS website. Contact the authorized dealer or distributor of DYNESS for a new torn invalid sticker after tearing the original invalid label. When the operation is completed, paste the new one at a different position.

Preface

Manual declaration
Powerbox Pro Lithium Iron Phosphate Battery is external battery module which can store the electricity for home use. When you apply the grid or photovoltaic system as your powers supply, the product can collect electricity to charges the battery. When grid or photovoltaic system is power off , the product can supply electricity itself for your home loads.
Powerbox Pro User manual systematically elaborates device structure, parameters, basic procedure and method of installation, operation, maintenance.
Safety Statement

• Only qualified trained professionals are allowed to install, operate, maintain the device.
• Please comply with local safety regulations and operational rules during installation, operation and maintenance, or it could cause unexpected injury or device damage.
• The safety declaration mentioned in the manual are only supplement context for your local safety regulations.
• The seller does not undertake any responsibility for device operations or usage of violating general safety requirements and safety standards.

Sign explanation
User should clear the meaning of the caution sign below when configuring or operating Powerbox Pro series products.
Caution
Neglecting the warnings might cause equipment failure.

Introduction

1.1 Brief Introduction
Powerbox Pro series is equipped with lithium iron phosphate battery for family use . We base on customer needs and market requirement to develop cutting-edge battery storage technology and offer this high quality product to supply stable electricity for all kind of user ’ s devices. The product have long life span and can be applied in high temperature environment and take less space for installation.
Powerbox Pro series carries self-developed battery management system. When you apply the grid or photovoltaic system as your powers supply, the product can collect electricity to charges the battery. When grid or photovoltaic system is power off , the product can supply electricity itself for your home loads. Products also can be paralleled to build a multi-module system with more capacity to satisfy the longtime energy storage demand.
1.2 Product Properties
Powerbox Pro series energy storage product’s anode materials are lithium iron phosphate, battery cells are managed effectively by BMS with better performance, the systems features as below:

• Comply with European ROHS, Certified SGS, employ non-toxic, non-pollution environment-friendly battery.
• Anode materials are lithium iron phosphate (LiFePO4), high safety performance with longer life span.
• Equipped with BMS (battery management system) mode with better performance, possesses protection function like over-discharge, over-charge, over-current, abnormal temperature.
• Self-management on charging and discharging, Single core balancing function.
• Intelligent design configures integrated inspection module.
• Flexible configurations allow parallel of multi battery for longer standby time.
• Self-ventilation with lower system noise.
• Less battery self-discharge, then recharging period can be up to 10 months during the storage.
• No memory effect so that battery can be charged and discharged shallowly.
• With wide range of temperature for working environment, -20℃ ~ +55 ℃, circulation span and discharging performance are well under high temperature.
• Less volume, lighter weight, seal grade up to IP65 embedding design for easier installation and maintenance.

1.3 Product identity definition
FIG1-1 Battery Energy Storage System nameplate Battery voltage is higher than safe voltage, direct contact may cause electric shock hazard.
Be careful with your actions and be aware of the dangers.
Read the user manual before using.
The scrapped battery cannot be put into the garbage can and must be professionally recycled.
After the battery life is terminated, the battery can continue to be used after it recycled by the professional recycling organization and do not discard it at will.
**** This battery product meets European directive requirements.

Product Specification

2.1 Size and Weight

Table 2-1 Powerbox Pro Series Device Model

Product Series| Nominal Voltage| Nominal Capacity| Dimension (mm)| Weight (kg)| IP Level
---|---|---|---|---|---
Powerbox Pro| 51.2V| 200Ah| 928×555×210| 110| IP65

2.2 Performance Parameter
Table 2-2 Powerbox Pro performance parameter

2.3 Interface Definition
This section elaborates on interface functions of the front panel of the device.
Figure2-1 Powerbox Pro the sketch of front interface. Table 2-3 Interface Definition

the positive pole of the inverter through the cable
2| COM IN| When the system is used independently:
The CAN/RS485 socket is connected to the inverter CAN/RS485 interface through the communication cable.
When the system is used in parallel:
This CAN/RS485 communication socket is connected to the COM OUT interface of the previous Powerbox Pro through communication cable.
3| Negative socket| The battery DC output negative pole, which is connected to the negative pole of the inverter through the cable
4| COM OUT| When the system is used independently:
This CAN/RS485 socket is a reservation interface When the system is used in parallel:
This CAN/RS485 communication socket is connected to the COM IN interface of the next Powerbox Pro through communication
cable. (Factory default CAN communication mode)
5| LED1| Module 1 status indicator light
6| LED2| Module 2 status indicator light
7| Ground connection point| Shell ground connection
8| Reset switch| Press the switch and the battery system turn on.
When the battery is in the non-use state such as storage,
transportation etc., it needs to be turn off by pressing the Reset switch button, and the battery system will automatically sleep
after the device without external load and power for 72 hours.
9| DC circuit breaker| Circuit Protection
10| COM| Communication cascade port, support RS232
State| Protect/Alarm/Normal| Led1| Led2| Directions
---|---|---|---|---
Shut down| | off| off| All off
Stand-by/Char ging/Discharging| Normal| | | Always on,11%≤SOC≤100%
Alarm| | | Always on, Corresponding module alarm or 0%<SOC≤10%
Protection| | | Flashing, (Corresponding module protection be activated / Over-discharge protection
/Over-current protection / Temperature abnormality, etc.)
Other case| Alarm| Yellow, green and red flash alternately| All module address assignments in the system are incomplete
The master LED1 yellow flash| Communication failure between batteries

2.4 Battery Management System(BMS)
2.4.1 Voltage Protection
Low Voltage Protection in Charging ：
When any battery cell voltage or total voltage is lower than the rated protection value during discharging, the over-discharging protection is activated, and the battery buzzer makes an alarm sound. Then battery system stops supplying power to the outside.  hen the voltage of each cell back to rated return range, the protection is over.
Over Voltage Protection in Charging：
During charging stage, the system will stop charging when the total voltage of the battery pack is higher than rated value or the voltage of any single cell reaches the protection value. When total voltage or all cell back to rated range, the protection is over.
2.4.2 Current Protection
Over Current Protection in Charging：
When the charge current of any module ＞ 90A, current limit protection mode is activated, current will be limited to 1A，protection is removed after rated time delaying 10S. Circulate like this until the current is lower than 90A.
Over Current Protection in Discharging：
When the discharge current of any module is higher than 100A, the battery buzzer alarms and the system stops discharging after 15s. After protection, the discharging will restore in 60s delay or immediately when there is charging current.
Caution:
The buzzer sound alarm setting can be manually turned off on the background software, and the factory default is on.
2.4.3 Temperature Protection
Low/Over temperature protection in charging：
When battery ’ s temperature is beyond range of 0 ℃ ~+65 ℃ during charging, temperature protection be activated, device stops charging. The protection is released when it back to rated range of working temperature.
Low/Over temperature protection in discharging：
When battery’s temperature is beyond range of -20℃ ~+65℃ during discharging, temperature protection be activated, device stops supplying power to the outside. The protection is released when it back to rated range of working temperature.
2.4.4 Other Protection
Short Circuit Protection：
When the battery is activated from the off state, if a short circuit occurs, the DC circuit breaker will respond first. If the DC circuit breaker does not operate, the short circuit protection function of BMS will be activated automatically and cut off the device’s output.
Self Shutdown：
When device connects no external loads for over 72hours, device will dormant standby automatically.
Caution
The maximum operating current required for the electrical load shall be less than the maximum discharge current capacity of the battery.

Installation and Configuration

3.1 Preparations for installation
Safety Requirement
This system can only be installed by personnel who have been trained in the power-supply system and have sufficient knowledge of the power system.
The safety regulations and local safety regulations listed below should always be followed during the installation.

• All circuits connected to this power system with an external voltage of less than 48V must meet the SELV requirements defined in the IEC60950 standard.
• If operating within the power system cabinet, make sure the power system is not charged.

Battery devices should also be switched off

• Distribution cable wiring should be reasonable and has the protective measures to avoid touching these cables while operating power equipment.
• when installing the battery system, must wear the protective items below:

3.1.1 Environmental requirements

• Working temperature: -20 ℃ ~ +55℃
• Charging temperature range is 0℃~+55 ℃,
• Discharging temperature range is -20℃ ~+55 ℃
• Storage temperature: -10℃ ~ +35 ℃
• Relative humidity: 5% ~ 85%RH
• Elevation: no more than 4000m
• Operating environment: Indoor or outdoor installation, sites avoid the sunlight and no wind, no conductive dust and corrosive gas.
• And the following conditions are met:
• Installation location should be away from the sea to avoid brine and high humidity environment.
• The ground for product arrangement shall be flat and level.
• There is no flammable explosive materials near to the installation site.
• The optimal ambient temperature is 15℃ ~ 30 ℃
• Keep away from dust and messy zones

3.1.2 Tools and data
Tools and meters that may be used are shown in table 3-1.
Table 3-1 Tool instrument

3.1.3 Technical preparation

• Electrical interface check
  Devices that can be connected directly to the battery can be user equipment, power supplies, or other power supplies.

• Confirm whether the user equipment, the PV equipment or other power supply equipment has the DC output interface, and measure whether the output voltage of the standby interface meets the requirements of the voltage range of table 2-2

• Verify that the maximum discharge current capacity of the user equipment, the PV equipment or other power supplies, the DC standby interface, and the maximum discharge current shall be greater than the maximum charging current of the products used in table 2-2.

• If the user equipment DC prepared interface maximum discharge capacity is less than the maximum charging current products using table 2-2, the user interface should have the power equipment of DC current limiting function, give priority to ensuring the normal work of user equipment.

• The security check

• Firefighting equipment should be arranged near the equipment, such as portable dry powder fire extinguisher.

• Automatic fire fighting system shall be provided for the case where necessary.

• Flammable, explosive and other dangerous materials placed beside the battery are prohibited.

3.1.4 Unpacking inspection

• When the equipment arrives at the installation site, loading and unloading should be carried out according to the rules and regulations, so as to prevent from being exposed to sun and rain.
• Before unpacking, the total number of packages shall be indicated according to the shipping list attached to each package, and the case shall be checked for good condition.
• In the process of unpacking, handle with care and protect the surface coating of the object.
• Open the package, the professional installation personnel should read the technical documents, verify the list, according to the configuration table and packing list, ensure objects are complete and intact. If the internal packaging is damaged, it must be inspected and recorded in detail.

Packing list is as follows: 3.1.5 Engineering coordination
Attention should be paid to the following items before construction:

• Power cable specification.
• The power cable specification shall meet the requirements of maximum discharge current for each product.
• Mounting space and bearing capacity.
• Make sure that the battery has enough space to install, and that the battery rack and bracket have enough load capacity.
• Wiring.
• Make sure the power cable and ground wire are reasonable. Not easy to short-circuit, water and corrosion.

3.2 Equipment installation
The wall for battery installation shall be solid brick or cement wall with strong bearing
capacity and wall thickness no less than 100mm.
Mounting space requirements： Table 3-2 Installation steps

2.Equipment installation
Step3| Electrical
installation| 1. Connect the ground cable
2 Electrical installation
3.Connect inverter
4.Communication interface connection

3.2.1 Floor installation
When the battery system is placed directly on the ground, a fixed support must be used to fix the top of the battery box on the wall.

1. Use the positioning cardboard (provided in accessory package) and mark the screw hole positions on the wall, as shown in the four holes on the left.

2. The bottom of board must be good connection with the ground level while marking the holes.

3. Press the marked position with the electric drill and trepanning 4 holes with a diameter of 10mm on the wall. The hole depth shall be greater than 70mm for fitting the expansion bolt of M6.

4. Fixing the expansion bolt M6 into the bottom of the hole on the wall.

5. Use the M6 bolt to fixing the Support bracket to the wall and control the torque at 6NM.

6. Carry the battery box to the installation site, and place it about 15mm away from the wall surface, fixing the Support bracket and the upper part of the battery box with M6 bolts.

3.2.2 Mounted on the wall
The following accessories need to be added when install the powerbox Pro on the wall.

1. Use the positioning cardboard (provided in accessory package) and mark the screw hole positions on the wall, as shown in the four holes on the left.
2. The cardboard must be perpendicular to the ground while drawing the holes.
3. The bottom of the cardboard is about 300mm from the ground.
4. According to the position of the mark, 8 holes in diameter 10mm and depth of more than 70mm are hit on the wall with an electric drill, which are used for fitting expansion bolt M6.
5. Fixing the expansion bolt M6 into the bottom of the hole on the wall, and fix the Support bracket and Battery bottom bracket on the wall with M6 bolts, twisting force keeps 6NM
6. Carry or hoist the battery box to the installed Battery bottom bracket. Fixing the Support bracket and the upper part of the battery box with M6 bolts, twisting force keeps 6NM. Then fixing the Battery bottom bracket and the bottom part of the battery box with M6 bolts, twisting force keeps 6NM.

3.2.3 Electrical installation
Before connecting the power cables, using multimeter to measure cable continuity, short circuit, confirm positive and negative, and accurately mark the cable labels.
Measuring method:

• Power cable check: select the buzzer mode of multimeter and detect the both ends of the same color cable. If the buzzer calls, it means the cable is in good condition.
• Short circuit judgment: choose multimeter resistor file, probe the same end of positive and negative pole, if the resistor shows infinity, means that the cable is available.
• After visual testing of power line is connection, the positive and negative poles of the battery shall be connected respectively to the positive and negative poles of the opposite terminal.

1. Connect the battery box to the ground cable
   Customer needs to prepare a M6 OT terminals and ground cables. Ground the battery shell as shown below. The sectional area of the grounding cable shall be at least 6mm2 and the bolt locking torque is 6NM. Caution:
   If there is any question during installation, please contact your dealer to avoid damage to the equipment.

2. Inverter Connection
   • When the system is used independently:
   Note: Before installation, please confirm whether the DIP switch mode of the master module in powerbox Pro is correct according to use’s inverter communication specification. For specific DIP operation methods, please refer to “3.2.4 Battery module DIP switch definition and description.” Except for the inverter specified by the customer’s special requirements, the factory default DIP switch mode of master module is DIP Switch mode 1 (ADD: 0010). If the inverter is equipped with other DIP switch mode, open
   the front panel and Set DIP switch mode of the master module to the correct mode.
   Before opening the cover to operate, you must contact DYNESS and inform the ID of the product. DYNESS records this battery ID and authorizes the opening operation. Except changing the DIP switch mode, no other operations can be done.
   • The battery is connected to the inverter, and it is required to use the dedicated power cable and communication cable (as accessories shipped with the cargo, the standard communication cable is a standard network cable. The applicable inverter is marked on the label of the network cable. If the inverter used by the customer is not covered by the standard communication cable, please contact DYNESS for the correct PIN Sequence) as follows:
   • Keep the battery system at power off state, connect the power cable to the interface on the input side of the inverter first, and then connect the power cable to the interface on the battery side.
   • The battery output interface is a quick connector, and the power cable (positive, negative) plug can be directly inserted into the battery socket. The power cable cross section is 25 mm2. • Connection of Communication interface. Connect the CAN IN port of the battery to the CAN or RS485 communication interface of the inverter using the RJ45 cable.

Table 3-3 Pin Definition

3) When the system used in parallel:
When the system is used in parallel, it supports up to 5 Powerbox Pro in parallel. According to the number of parallel system (Take 5 Powerbox Pro in parallel as an example), it needs to use:
Power cable × 5 pair, Battery-Inverter communication cable × 1PCS, Battery- Battery communication cable × 4PCS, Distribution box × 1PCS.The over-current capacity of the distribution box should be much higher than the maximum nominal current value when the load is running. PINOUT of system parallel communication cable:
PINOUT of Battery-Battery communication cable diagram shown as below:

Power distribution 3.2.4 Battery module DIP switch definition and description
Table 3-4 DIP switch Definition
DIP switch position (master communication protocol and baud rate selection)

1| #2| #3| #4

---|---|---|---
Define different protocols；Distinguish between master and slave| Baud rate selection
OFF：CAN: 500K,485: 9600
ON：CAN: 250K,485: 115200

DIP switch description:
For Powerbox Pro series system, the master module at the bottom of cabinet , the other modules are slaves.When the batteries are connected in parallel, the master communicates with the slaves through the CAN interface. The master summarizes the information of the entire battery system and communicates with the inverter through CAN or 485.
Introduction of the initial state of DIP switch of the internal modules of Powerbox Prowith DIP switch. For different inverter model, you need to set different DIP mode:

1. Ensure the communication cable that communicates with the inverter is correct.

2. When the battery works with GOODWE、Solis、LUX、Sofar、DEYE、VICTRON、IMEON、Sungrow、SMA、RENAC、DELIOS、SAJ(CAN Comm) inverters, before connecting you need confirm that the DIP switch mode of the master module in Powerbox is 0010(“# 3” to “ON” ,generally factory default is this 0010 mode).
   

3. If the battery communicate with the Axpert/VMIII/MAX, Infinisolar, Growatt SPH(CAN comm)、GMDE, change the master module DIP switch to 0100(“#2”to“ON”) before connecting.
   

4. If the battery communicate with the Growatt SPF HVM-P/ES/WPV by RS485 communication, change the master module DIP switch to 0110(“#2”&“#3”to“ON”) before connecting.
   

5. If the battery communicates with the Schneider Conext Series, turn the master DIP switch “#1” and “#3” to “ON”.
   

6. When you setup the master DIP as setting 1~4, all the slaves keep the DIP 0000, no need change.

Caution
Generally factory default DIP switch status of the master module in Powerbox Pro is setting 1. When they are used in parallel, all the slave Powerbox Pro systems need to be opened the cover and change the DIP switch of the master module to Slave Setting 1 (i.e. ADD: 0000),the master powerbox Pro no need change.
Proceed as follows:
a. Remove the six screws on the Powerbox Pro and open the front panel.
b. Find the red DIP switch on the master battery PCB .
c. Change the DIP switch status to the original state (Mode5: i.e. ADD: 0000)
d. Re-install the front panel with six screws which were removed in step a. Caution:

• Before connection, the positive and negative pole of the inverter input interface and the battery output interface should be confirmed.
• The red power line is connected to the positive pole and the black power line is connected to the negative pole.
• Before connection, it is necessary to confirm the charge and discharge parameters of the inverter interface.
• Voltage and current should meet the requirements of Table 2-2 battery performance parameters.
• When you use battery in parallel, it doesn’t need to change the DIP switch of the master module in the master Powerbox which communicates with the inverter directly.
• Note: For more information of matching inverter brands, please subject to the latest document .
• The following operations can only be performed after being authorized by DYNESS:
• How to judge that the communication between the product is normal:
• If there is communication between the inverter and battery system, it can be judged by the maximum charge and discharge current value on the inverter sent by the battery.

1. If there is communication between the inverter and battery system, it can be judged by the maximum charge and discharge current value on the inverter sent by the battery.
   (The maximum charge and discharge current value displed on the inverter)
   ( The maximum charge and discharge current value of one battery module )
   =number of modules
   If the equation holds after calculation, it means communication between the powerbox Pro is normal.

2. If the Powerbox Pro light board shows three different colors flash alternately, it means the communication between Powerbox Pro is fault.

Table 3-5 Battery & Inverter power matching table

Equipment Use| Charging| a) The battery’s long-term continuous charging current should be ≤0.5C
b) If the battery remaining capacity is empty, please charge it within 48 hours after the battery is empty.
---|---|---
Discharging| c) The long-term continuous discharge current of the battery should be ≤0.5C
d) The recommend maximum depth of discharge (DOD)of Battery PACK is no more than 85%.

3.2.5 Battery parameter settings on the inverter
Max Charging(Bulk) Voltage: 57.6V
Absorption Voltage: 56.5V
Float Voltage: 56V
Shut Down(cut off) Voltage: 48V
Shut Down(cut off) SOC: 20%
Restart Voltage: 52V
Max Charge Current:100A
Max Discharge Current: 100A

Hybrid Inverter/ Off-grid Inverter
5KW
10KW
15KW| Powerbox Pro
---|---
Type| System Energy(kWh)
1powerbox Pro
2powerbox Pro
3*powerbox Pro| 10.24
20.48
30.72

3.2.6 Register on the website after installation
After the battery system installation is completed and the running is normal, you need to log in to the DYNESS official website to register the product installation and use information to make the product warranty effective. Please follow the instructions on the website to register. http://www.dyness- tech.com.cn Service Sign Up

Use, maintenance and troubleshooting

4.1 Battery system usage and operation instructions
After completing the electrical installation, follow the instruction below to start the battery system.

1. Check whether the breaker is in OFF state.

2. Press the battery power button, the power button LED light is on, and 2 LED indicator lights will be on and show the green color after self-check. Caution:
   After pressing the power button, if the battery status indicator lights shows abnormally, please refer to the “4.2 Alarm description and processing”. If the failure cannot be eliminated, please contact the retailer timely.
   After pressing the power button, if the battery status indicator continues to be red, please refer to the “4.2 Alarm description and processing”. If the failure cannot be eliminated, please contact the retailer timely.

3. Use a voltmeter to measure whether the voltage across the BAT + / BAT- terminals of the inverter is higher than 44.8V, and check whether the voltage polarity is consistent with the input polarity of the inverter. If the voltage across the terminals BAT + / BAT- of the inverter is higher than 44.8V, which means the battery has begun to work normally.

4. After confirm the battery output voltage and polarity are correct, turn on the inverter, then turn on the circuit breaker switch.

5. Check whether the indicator light for the inverter and the battery connection (the communication indicator and the battery access status indicator) is in normal condition. If normal, the connection between the battery and the inverter is completed. If the indicator light show abnormal, please check the inverter manual or contact the local dealer.

4.2 Alarm description and processing
When protection mode is activated or system failure occurred, the LED indicator on the front panel will alarm, through net management can query specific alarm class and take appropriate action.
4.2.1 Alarm and countermeasure for affecting system output
If there are any abnormalities affecting the output, such as battery cell in the battery module occurs over-current protection during charge/discharge, under-voltage protection, and temperature protection, in the system, please deal with them according to Table 4-1.
Table 4-1 Main alarm and Protection

of the trouble.
Discharge state| Over-current protection when discharge| RED light flashing
Buzzer start| Stop discharge and reduce discharge current below rated value.
High temp protection when discharge| RED light flashing| Stop discharging and find out the cause of the trouble.
Over-discharged protection| RED light flashing
Buzzer start| Start charging.
Low voltage alarm| Yellow light on| Startcharging.

4.2.2 Alarm and countermeasure for non-affecting system output
If a low SOC alarm occurs, the battery system also issues a corresponding alarm signal.
Maintainer should check the equipment according to the prompt information, determine the type and location of the fault, and take corresponding countermeasures to ensure that the system is in the best working condition to avoid affecting the system output.
The phenomena and countermeasures are shown in Table 4-2.
Table 4-2 minor alarm

discharging, and charge the battery system in time.

4.3 Analysis and treatment of common faults
Table 4-3 Analysis and treatment of common faults

charging voltage within 57.1V-57.6V range
5| The power cable sparks once power on and ALM indicated Red light on| Power connection short-circuit| Turn off the battery, check the cause of the short circuit
6| The master powerbox Pro LED1 is yellow flashing| Communication fault between product and product,or between internal modules in powerbox Pro| Check the external communication cable firstly, Check the internal communication cable secondly
7| The led 1,2 don’t stop changing alternately| Modules comms address distribution is fault| Check the external comms cable connection firstly. Check the slave module DIP setting.

If you need any technical help or have any question, please contact the dealer in time.

Daqin New Energy Tech (Taizhou) Co., Ltd.
Address: Building 13, Kunshan Jiangyan Industrial
Park, Chenzhuang West Road, Jiangyan District,
Taizhou City, Jiangsu Province, China, 225500.
Email: Sales@dyness-tech.com
Website: www.dyness-tech.com.cn

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