Narada NPFC Series User manual

NPFC Series LiFePO4Battery Module for Telecom
LITHIUM IRON PHOSPHATE BATTERY
NARADA POWER SOURCE CO., LTD
Email: [email protected] Website: en.naradapower.com
OPERATION MANUAL
Version 9.0
NPFC Series
(LiFePO4Battery Module for Telecom)

01 02
Safety and Warning
CONTENTS
Product Introduction
Technical Characteristic
Storage and Installation
Maintenance
Operation
03
04
10
12
17
11
Product Features
Main application
Dimension
Layout
Working principle
Discharge performance
Charge performance
General
Troubleshooting and Solutions
Annex1
Annex2
Annex3
Annex4
Parameter settings
Operation condition
Storage
Installation
4
4
5
6
8
10
10
17
18
19
20
21
22
11
11
12
12
Notes
Two
One
Four
Five
Three

NPFC Series LiFePO4Battery Module for Telecom
Safety and Warning
Chapter Notes
Product Introduction
Chapter One/01
Product Features
The NPFC series LiFePO4battery system installation, operation, maintenance should follow
important recommendations in this manual:
The equipment shall be installed by the professional trained staff.
Battery maintenance should be carried out by the experienced professionals and aware of the
preventive measures on the potential harm of the battery.
Note: Be care of the risk of electric shock for large current in case of battery short circuit, pay
attention to the following points during operation
Do not direct access to the battery system to the mains grid power outlet.
Do not put the battery system into re, do not use or storage the battery near to the high
temperature source.
Do not use liquid or other objects placed into the battery system.
Do not open or cut the battery, not hit, throw or step on the battery.
Using special communication between battery module and power plant to charge battery
Be sure to subject to charge and discharge parameters setting in this manual.
The output interface of the system is still voltage when grid power cut, avoid electric shock or
short circuit when operation.
Please check if the box is damaged. If damaged, please immediately notify the supplier
If you nd leaking liquid or white powder residue on product, prohibit operation.
03 04
NPFC series battery system is 48V system for communications back-up type LiFePO4(lithium iron
phosphate) battery products, the system uses the advanced LiFePO4battery technology with the
benet of long cycle life, small size, light weight, safety and environmental protection, and has a
strong environmental adaptability, it is idea for harsh outdoor environments.
The system also integrates a smart battery management and monitoring module, support for remote
centralized monitoring and remote battery management and maintenance, to meet the requirements
of unattended. Therefore, the NPFC system can fully meet the backup power supply requirements of
the access network equipment, mobile communications equipment, transmission equipment, micro
base stations and microwave communication equipment.
Main application
■ Remove watches, rings or other metal objects
■ Use tools with insulated handles
■ Do not place tools or metal objects on the battery
Please take care of the following marks
Warning Electricity
danger
Fire
forbidden Circle used
Protecting
your eyes
Watch
Short-circuits
With adults
custody
Do not put
batteries into
dustbin
The product has
passed the UL
authentication
Read the
manual
Network Telecommunication Facilities
OSP
Terminal of FTTX
Access network system
Indoor distribution system
Telecom BTS
Integrated outdoor power cabinet
UPS
Internet data center (IDC)
Solar energy
Common Bonding Network (CBN) and or Isolated Bonding Network (IBN)

NPFC Series LiFePO4Battery Module for Telecom
05 06
Dimension Layout
Fig.1-1 Structural Drawing of NPFC Series Batteries (48NPFC100 as example)
Fig.1-2 Battery Output Terminal
Table 1-1 Battery Model & Dimension of NPFC Series
48NPFC10
48NPFC20
48NPFC50
48NPFC80 (3U)
48NPFC80 (5U)
48NPFC100 (5U 19”)
48NPFC100 (3U 23”)
★48NPFC100 (3U 19’’)
7.3
13.4
28.5
39.0
40.0
45.5
48.0
42.0
442
442
442.5
442.5
442.5
442.5
522.5
442.5
44
88
132.5
132.5
222
222
132.5
138
243
243
400
400
400
400
420
400
10mm
10mm
13mm
13mm
13mm
13mm
13mm
/
M4
M4
M6
M6
M6
M6
M6
M8
Battery
Model①
Typical
Weight
(kg)
Battery Output
Terminal
Dimensions(mm)
Depth L Φ
Width
(No ear) Height
①Battery Model
②★48NPFC100
(3U 19’’)
Note:
Battery models listed in the datasheet are standard products. Narada can also supply
customized design in cell, BMS and dimensions for various application scenarios.
The height of this battery is 138mm, is a litter higher than 132.5mm(3U).
Fig. 1-3 Layout of Front Panel for NPFC Series Batteries
(Received product may not have all parts above, this instruction is as an example)
Table 1-2 Instruction for Layout of Front Panel
SOC is short for state of charge. There are four green LED
lights in front panel indicating SOC. Each SOC LED light
represents 25% of rated capacity. Detailed information is
shown in Annexed Table 1.1.
There is one red LED light in front panel indicating alarms.
Detailed information is shown in Annexed Table 1.3.
There is one green LED light in front panel indicating
running status. Detailed information is shown in Annexed
Table 1.2.
ADD is applicable to modules connected in parallel. ADD
consists of six binary bits. Detailed information is shown
in Annex 2.
Indicators for
capacity
Indicator for
alarms
Indicator for
running status
Address of
communication
SOC
ALM
RUN
ADD Dip
switch
1
2
3
4
Marks
No. Detailed Information
Functions

NPFC Series LiFePO4Battery Module for Telecom
07 08
RS232 communication port just for software upgrade now.
communication
port
RS2325
It is adopting RS485 series port communication pattern
to upload data. Contents of data transmit include
BMS parameters, battery running status, alarms, etc.
Communication of modules connected in parallel is
available through RS485.
Press RESET button when abnormity occurs to assure
stability of battery performance.
Battery BMS can be removable and replace easily through
this.
The side mounting is used to wall-handing installation battery.
Also use the ear to handle the battery.
Failure Alarm: indicate BMS or battery fail including but
not limited to charge and discharge MOS fail, cell voltage
under 0.5V, NTC disconnect, and so on.
When turn-off, battery get into sleep mode, and cut-off
output, the alarm output also will be stopped.
Using terminals with four or two cores. Polarities are +, -,
+, - from left to right. The two ‘+’ and ‘-’ are equal relatively.
Detailed information is shown in Fig. 1-2.
Connect earth by exible cable above GREEN Sheathed,
UL94-V0, gauge of the grounding wire should be equal to
or greater than the gauge of the battery return wire.
The handle is used to push and pull the battery easily
from battery cabinet.
Not recommend use handle to handing the battery.
Detailed information is shown in Annexed Table 3.
Dry contact
indicators
Terminals for
battery output
Display battery
information
Ground screw
handle
ON/OFF switch
communication
port
Reset button
Removable
Panel
Wall-hanging
installation
RS485
RESET
Removable
Panel
(optional)
Side
mounting
Dry
contact
Battery
Output
LCD
(optional)
GND
Handle
Power
switch
6
8
10
9
11
12
14
7
13
15
Working Principle
The NPFC battery system mainly includes Lithium battery pack, battery protection, cell balancing
unit, monitoring module and charge-discharge management module for optional. Its schematic
diagram shown in Figure 1-4
Fig. 1-4 Schematic Diagram
LFP cells
Cell protection
Cell balancing
Monitoring
Chemical power, energy storage and power supply components.
Protect LFP cells against overcharge, over discharge, over current, over
temperature, short circuit
Equalization LFP cells for cells unbalanced
Support centralized monitoring system (optional according to customer
requirements)
NPFC battery working principle:
DC power input rectier after lter, DC divided two circuits, one circuit directly supply the load, another
circuit charge lithium battery. When grid power on, the system supplies the loads and charging inside
lithium batteries; When grid power failure, lithium inside system supply DC power to the load, to
ensure uninterrupted power supply as power system.
Battery Management System (BMS)
Smart BMS technology is adopted for battery modules of NPFC series to assure smart automatic
management for batteries. Features of BMS are shown as below:

NPFC Series LiFePO4Battery Module for Telecom
09 10
There is a centralized monitoring unit in BMS. Functions such as remote measurement, remote
communication, remote controlling are available. Battery modules can be controlled remotely
by staffs in control center. NPFC series are in line with the requirements of the development of
modern communications technology.
It is combined by technologies of power source and computer. Parameters and status of rectiers
and AC/DC distributions can be detected and controlled.
Excellent electromagnetic compatibility. BMS used for battery modules of NPFC series can
comply with the outdoor power plants during operation, no interfere with each other.
BMS can provide protections against overcharge, over-discharge, over-temperature, over current,
short circuit, etc., to assure reliable safety and operation life.
With patented cell balancing technology, BMS provide high efciency for cell balancing and
prolong system operate life.
Conguration exibility, support parallel connection expansion
Technical Characteristic
Chapter Two/02
Discharge performance
Fig.2-1 Discharge curve at different constant current of NPFC series
Charge performance
Fig.2-2 Charge curve at different current limitation of NPFC series

NPFC Series LiFePO4Battery Module for Telecom
11 12
Operation
Chapter Three/03
Parameter settings
Lead-acid batteries can be replaced by lithium battery of NPFC series if power is matched. Table 3-1
is new parameter settings of power plant for lithium battery.
Table 3-1 Parameter Settings of Power Plant for NPFC Series Batteries
1
2
3
4
5
6
7
8
9
10
11
12
13
Float charge voltage
Equalization charge voltage
Standard charge current
Charge current limitation
Equalization charge interval
Equalization charge duration
Condition to equalization charge
Condition to oat charge
Recovered LLVD voltage
LLVD
BLVD
Temperature compensation for oat charge
Temperature compensation for equalization charge
V
V
A
A
day
H
A
A
V
V
V
-mV/°C
-mV/°C
54.0
NA or 54.1
0.2C
0.5C ~ 1.0C
NA
NA
NA
0.05C
50.0
47.0
43.2
NA
NA
Parameters
No. Defaults
Units
Note:
1.Equalization charge is requested to switch off for NPFC series batteries.
2.Rectier parameter shall be set according to specic site requirement based on battery units used.
3.If the battery connected more than 2 in parallel, the max. charge current recommend 0.5C.
Operation Condition
Table 3-2 Requirements for Operation Environment
Temperature
Range (°C)
Discharge
Charge
Storage
Discharge
Charge
Storage
-20 ~ +60
0 ~ +60
0 ~ +40
+15 ~ + 35
+15 ~ + 35
+15 ~ + 30
5% ~ 95%
Recommended
Temperature(°C)
Humidity
Storage
Storage and Installation
Chapter Four/04
■ Storage temperature range: 0°C to 40°C.
■ Storage battery should be at 50%-80%SOC.
■ Recharge charge before using to recover capacity loss of self-discharge during storage and
transport.
■ Recharge battery during long-term storage for self-discharge. Recharge program as follow table:
■ Storage battery over 40°C or under 0°C will reduce battery life,
■ Storage battery in dry and low temperature, well ventilated place
■ Battery performance degradation after long-term storage, please shorten shelf time as possible
as you can.
Every 6 months
Every 3 months
0°C-30°C
30°C-40°C
1) Charge with 0.2C to 100%SOC
2) Discharge with 0.2C to 0%SOC
3) Charge with 0.2C per module for 4 hours
Single Module Recharge ProcedureRecharge intervalStorage temperature
Installation
Unboxing & Inspection
■ Please study this manual before installation.
■ Please inspect the package before unboxing, if any destroy with appearance, contact with the
supplier as soon as possible.
■ This device shall be installed and operated by professionals.
Preparation for Installation
■ Batteries shall not be placed in direct sunshine or close to heat source.
■ Batteries shall be installed in place with good ventilation to assure enough heat dissipation.
■ Batteries shall be placed in are with clean ambient and low humidity.
■ Heavy weight shall not be placed on any cable.
■ Following are the tools possibly but not limited be use for installation:
Tool items (possibly but not limited)

NPFC Series LiFePO4Battery Module for Telecom
13 14
Installation of Battery Modules
1.Installation and xation
Battery modules of NPFC series are applicable to installation in cabinets and wall-hanging.
■ cabinet installation
Insert battery module into cabinet, and x two handles of battery module with cabinet rack using
4pcs M6 screws.
■ Wall-hanging installation
Wall-hanging installation also can be adopted, x two handles of battery module with triangle rack
on the wall using 4pcs M6 screws.
Preferred
Forbidden (Except for 48NPFC10, 48NPFC20, 48NPFC100-19)
Alternate
Fig. 4-1 Ground connection for NPFC Series Batteries
2.Ground connection
Connect earth by exible cable above GREEN Sheathed, UL94-V0, gauge of the grounding wire
should be equal to or greater than the gauge of the battery return wire, .no less than 6AWG,
connection through 2-hole 0.75in center spacing, on right side of cabinet back.
3.Battery output connection
■ Connect ‘+’ of battery output with positive copper bar of power plant, and ‘-’ with negative copper
bar or power switch.
■ If multi battery modules will be connected in parallel, please take note of follows:
1)
2)
3)
4)
■ Color for cable between ‘+’ and positive bar is suggested as RED, and cable between ‘-’ and
negative as BLACK.
■ The picture of paralleling connection for NPFC Series Batteries see Fig. 4-2. There is a tray under
each battery to support the battery.
The battery modules connected no more than 8 in parallel.
The minimum spacing between batteries is 10mm.
Connect ‘+’ of battery output of each battery module with positive copper bar of power plant,
and ‘-’ with negative copper bar of power plant or power switch separately.
Length of cable between battery module and power plant shall be less than 2.0m. To make sure
similar voltage drop of cable for each battery, length of all positive and negative cables should be
the same.

NPFC Series LiFePO4Battery Module for Telecom
15 16
Fig. 4-2 Layout of paralleling connection for NPFC Series Batteries
Fig. 4-3 How to handle the empty RS485 port for NPFC Series Batteries
4.Power on for battery module
■ When installation is accomplished, battery module is in dormant state. Once power on for the
power plant and battery module, battery will go into normal running status, and discharge/charge
can be available.
■ Parameter settings for lithium battery modules in power plant are shown in Table 3-1.
5.RS232/RS485 communication connection
■ If there is only one battery module in operation, communication between battery module and
computer can available through RS485.
■ If there are more than one battery modules in operation, parallel communication can be available
using RS485.
■ The last battery in each rack have an empty RS485 port for CAN cable terminal resistor. The other
end of communication cable, use the electric tape to seal it.
■ RS232 communication port just for software upgrade.
■ Communication protocols for RS485 are shown in Annex 3.
■ Dry contact should be connected when battery connected in electric circuit.
6.Discharge with dummy load
■ Dummy load cannot be larger maximum discharge current of each battery model according to the
datasheet, and BLVD is larger than 43.2V.
■ Voltage drop on cable between battery module and power plant shall be less than 0.5V. Method of
calculation for cross sectional area of cable is shown as below.
A=ΣI×L/(K×△U)
In the above formula, A is across sectional area of wire (mm2), ΣI is the total current (A), L is length
of cable, △U is the permit voltage drop on cable (V), and K is electrical conductivity of wire. For
example, for copper, K = 57.

NPFC Series LiFePO4Battery Module for Telecom
17 18
Maintenance
Chapter Five/05
General
Proper maintenance will prolong the life of a battery and will aid in assuring that it can satisfy its
design requirements. A good battery maintenance program will serve as a valuable aid in determining
the need for battery replacement. The users must consider their application and reliability needs
if maintenance procedures, other than those recommended in this document, are used. Battery
maintenance should be performed by personnel knowledgeable of batteries and the safety
precautions involved.
■The battery shall be recharged every three months if in long time storage
■ Please clean the dust by the dust collector when dust is accumulated on vent
■ Please use clean and dry cloth/fabric to clean up the cabinet, if need further cleaning, please use
neutral cleanser. Alcohol or ammonia synthesis is forbidden.
■ Carrying shall be handled gently, prevent from severe compact
■ Prevent battery from splashing liquid
■ Suggest inspect the tighten of output screw every two years
Troubleshooting and Solutions
Battery cannot
discharge
Battery cannot
charge
All LED indicators
on
Communication
failure
Protection against under-voltage
Protection against over-temperature or under-
temperature (cell temperature is lower than -20°C
or higher than 70°C)
Battery output is short circuit
Protection against over current
System failure
Battery is fully charged. Normal charge
management
Protection against over voltage
Protection against over-temperature or under-
temperature (cell temperature is lower than -10°C
or higher than 70°C)
System failure
System failure
Fault of communication cable
Halt of System communication management
System failure
Charge battery
Regulate cell temperature in
the range of -20°C to 70°C for
discharge
Relieve short circuit and charge
battery
Remove some unimportant load
and charge battery
Shutdown system and call
maintenance service
Do not need to solve
Do not need to solve
Regulate cell temperature in the
range of 0°C to 55°C for charge
Shutdown system and call
maintenance service
Shutdown system
Call for maintenance service
Inspect communication cable
Press RESET button
Shutdown system
Call for maintenance service
Troubleshooting
Troubles Solutions
Different ash status of LED indicators represents corresponding running status or alarms. Detailed
information is shown Annex 1.
Note: The improvement of product and technology, and the possible of battery specication and appearance
changes, Narada hold the right of nal explanation!
Table 5-1 Troubleshooting and Solutions