Anhui Yine YN-CA Buck Series User manual

Anhui Yine Technology Co., Ltd
YN-CA/CB/CC/CD Buck Series
Solar Charge Controller
User Manual
Anhui Yine Technology Co., Ltd
Dear customer, thank you for choosing our products. Please read the following instructions carefully
before using this product:
Please keep this manual for future reference

YN-C Buck series solar charge controller
Contents
I. Safety instructions:..........................................................................................................................................1
1.1 Safety signs.......................................................................................................................................... 1
1.2 Safety instructions............................................................................................................................... 1
II. Product Features............................................................................................................................................3
1. Overview..................................................................................................................................................3
2. product features..................................................................................................................................... 3
3. product appearance...............................................................................................................................4
III. Installation Instruction................................................................................................................................. 5
1. installation precautions..........................................................................................................................5
2. installation instructions.......................................................................................................................... 6
3. Wire.......................................................................................................................................................... 7
4.photovoltaic array requirements........................................................................................................... 9
5. able selection requirements................................................................................................................. 9
6. Communication port description.......................................................................................................... 9
IV. Operate instruction.....................................................................................................................................10
4.1 Indicator function................................................................................................................................10
4.2 Setting Button..................................................................................................................................... 11
4.3 LCD display.........................................................................................................................................11
4.4 Setup operation..................................................................................................................................12
V. Device parameters.....................................................................................................................................16
5.1 Protection function............................................................................................................................16
5.2 Troubleshooting................................................................................................................................ 17
5.3 system maintenance........................................................................................................................ 19
VI. Warranty commitment............................................................................................................................... 19
VII.Device parameters.....................................................................................................................................20
VIII.Installation Dimension.............................................................................................................................. 22
IX Packing list and Monitoring options.........................................................................................................25

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I. Safety instructions:
1.1 Safety signs
The following safety symbols may appear in this manual and their meanings are as
follows:
safety symbols
signification
Danger
Indicates that if the safety warning is ignored, there is a serious
accident that may lead to personal injury.
Warning
Indicates that if safety warnings are ignored, there is a risk of serious
injury, serious equipment damage or major business interruption.
Notice
This means that if safety warnings are ignored, there is a risk of
moderate injury, moderate equipment damage or partial business
interruption.
Insturction
Indicates that the content is additional information for the body.
For electrical and electronic equipment, safety involves the entire process of installation,
commissioning, operation and maintenance. Therefore, incorrect use or misuse will
endanger the life and personal safety of the operator or a third party and the safety of the
equipment. In order to avoid personal injury and damage to the equipment, all safety,
warnings and cautions such as the following are strictly observed during operation and
maintenance.
1.2 Safety instructions
Warning！
All installation operations on the controller must be performed by a qualified technician.
Professional and technical personnel must undergo special training, complete the manual and
understand the safety related to the operation.
If a non-professional person performs installation operations and causes personal injury,
the company will not be responsible.
Failure to install and operate the controller in accordance with the instructions in this
manual will result in damage to the controller and will not be covered by our warranty.
①Before installion
Notice！
When receiving the product, first check the MPPT series controller for damage during
transportation. If you find any problem, please contact our company or the transportation
company immediately.
②installing
Before installing the MPPT controller, make sure that the MPPT controller has not been
electrically connected and powered.

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Warning!
Damage to the MPPT controller caused by the following conditions, or other damages will
not be covered by our warranty.
When configuring the PV array, ensure that the maximum short-circuit current on the DC
side is within the allowable range of the MPPT controller, otherwise the MPPT may be
irreparable.
When configuring the PV array, make sure that the open circuit voltage of each PV string
does not exceed the maximum input range of the MPPT controller, otherwise the MPPT
controller will be irreparable.
The selected controller charging current should not be greater than 0.3 times the battery
capacity. If it is greater than the battery will be damaged or the battery life will be reduced.
Improper selection of the MPPT controller installation environment will affect machine
performance and may cause machine damage.
Do not install the MPPT controller in a flammable or explosive place or in a place where
flammable or explosive materials are stored.
Do not install the MPPT controller in an explosive location.
Do not install the MPPT controller in a location where it may be exposed to lightning strikes.
Do not install the MPPT controller in a place with a lot of salt spray.
Good ventilation is required when the MPPT controller is in operation.
The MPPT controller needs to be installed upright and ensure that the air duct is
unobstructed.
Warning!
Always disconnect the PV array, battery, load, etc. (circuit breaker) or fuse before all
devices are fully connected.
Prevent water from entering the inside of the controller.
Note!
All electrical installations must comply with local and national electrical installation
standards.
To ensure safe operation, proper grounding, proper conductor size and the necessary
short-circuit protection are required.
The connection cable must be selected to the appropriate specifications, and the
connection is secure and well insulated.
After installation, check that all wiring connections are tight to avoid the risk of heat build-up
due to virtual connections.
③In Operation
Danger!
Do not open the machine cover while the MPPT is powered!
④Repair
Danger!
Repair work must be carried out by professional service technicians.
The machine needs to be powered off before maintenance, and it can be disassembled
after waiting for 5 minutes after power off.

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II. Product Features
1. Overview
Thank you for choosing the YN-CA/CB/CC/CD buck type solar charge controller.
Based on multi-phase synchronous rectification technology and common anode
design, this series of products adopts advanced high-speed processor and MPPT
control algorithm, featuring high response speed, high reliability and high industrial
standard.
The MPPT control algorithm used in this series can quickly track the maximum
power point of the PV array in any environment and obtain the maximum energy of
the solar panel in real time. The multi-phase synchronous rectification technology
can guarantee the pole in any charging power environment. High conversion
efficiency, compared with most of the current BUCK, greatly improve the energy
efficiency of the solar system; the controller can be connected to the host computer
through RS485, support WIFI module and GPRS module to expand APP cloud
monitoring, can be applied to communication base stations, households Use
systems, street lighting systems and field monitoring.
2. product features
Advanced multi-phase synchronous rectification technology also has high
conversion efficiency in low power charging environment.
Has an ultra-wide PV array operating voltage range.
Advanced MPPT maximum power point tracking technology, the tracking
efficiency is not less than 99.5%, compared with the ordinary PWM algorithm,
the efficiency is increased by 15 to 20%.
Using high-quality imported components and advanced power conversion
circuit, the maximum conversion efficiency can reach over 98%, the full load
efficiency can reach 97%, and a variety of tracking algorithms can be combined
to quickly track the maximum power point.
Three-stage charging method: MPPT-lifting charging-floating.
12V/24V/48V battery system automatic identification function（YN-CA has no
48V system）.
RS485 communication can provide communication protocol to facilitate unified
management and secondary development for customers.

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The controller running parameters can be viewed and set through the PC host
computer and mobile phone APP. For details, refer to the host computer and
APP manual (optional).
With battery temperature compensation.
It has comprehensive protection functions such as overcharge, over discharge,
over temperature, overload, reverse connection and so on.
3. product appearance
3.1 product appearance
pic 2-1: Product appearance dimension drawing
Table 2-1：Product weight and size
parameter name
Weight and Size
Model no.
YN-CA
YN-CB
YN-CC
YN-CD
weight(kg)
0.55Kg
1.55kg
2.45kg
3.9kg
Size L*D*H(mm)
113.1*141.5*46
mm
191.9*169.4*87
.3mm
241.9*193.4*104.
3mm
325.9*222.4*109
.3mm

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3.2.Interface definition
pic2-2 Product interface definition
Table 2-2 Product interface definition
NO.
Name
Function
Instruction
1
PV+
Photovoltaic array
positive electrode
PV array input
2
PV-
Photovoltaic array
negative
3
BAT+
Battery positive
Battery pack terminal
4
BAT-
Battery negative
5
LOAD+
DC load positive
DC load output (YN-CD does not have
this output)
6
LOAD-
DC load negative
7
Temp sensor
External temperature
test terminal
Measuring battery temperature
8
RS485
Communication port
Realize the monitoring of host computer,
WIFI and GPRS communication
III. Installation Instruction
1. installation precautions
(1) You must read the entire installation chapter and familiarize yourself with the installation
steps before installation.
(2) Be very careful when installing the battery. For the installation of the open lead-acid
battery, wear a protective mirror. When it comes into contact with the battery acid,
please rinse it with clean water.
(3) Avoid placing metal objects near the battery to prevent the battery from short-circuiting.

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(4) Acid gas may be generated when the battery is being charged to ensure good
ventilation around the battery.
(5) Please install indoors and install outdoors to avoid direct sunlight and rain.
(6) The connection point of the virtual connection and the corroded wire may cause great
heat to melt the insulation of the wire, ignite the surrounding materials, and even cause
fire, so ensure that the connectors are tightened, and the wires are preferably fastened
with the cable tie. To avoid loose wires when the application is moving and the wires
are shaken.
(7) The installed battery pack should match the controller charging voltage and the
recommended charging current range.
Danger！
Explosion hazard! Never install the controller and battery in the same confined space!
Also do not install in a confined space where battery gas may collect.
2. installation instructions
Step 1: Choose the installation location
Avoid installing the controller in direct sunlight, high temperatures, and easy access to
water, and ensure adequate ventilation around the controller.
Step 2: Unpacking and checking
(1)Check the outer packaging for damage or deformation;
(2)Unpacking inspection: one controller, one manual, one attachment, etc.;
(3)Check the appearance of the mainframe and the accessories are in good condition
If you are concerned about the above abnormal situation, please contact us.
Step 3: Fixed controller
Install the mounting ear fittings on the top of the top of the cabinet at the reserved
installation position. Fix the controller to the mounting platform or cabinet mounting bracket
with screws through the mounting ears. Allow sufficient ventilation and cooling space
around the installation.

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pic 3-1 Reserved space map around the equipment installation
3. Wire
Note: For installation safety, we recommend a wiring sequence
Note: The MPPT series controller is a common negative design.
Caution: Do not connect the electrical equipment that exceeds the surge power of
the controller to the load terminal to prevent damage to the controller!
Warning: When you need to use the mobile, make sure that all the wirings are fixed.
Because the virtual connection points may cause heat to accumulate, it may cause
fire in severe cases;
Step 1: Connect the battery, PV module, load, temperature sensor, monitoring
background.
Connect the battery, load, PV module, temperature sensor, monitoring background
(host computer / WIFI module / GPRS module) in turn, disconnect all switches during the
wiring process, pay attention to distinguish between positive andnegativeBefore connecting
the battery, make sure the battery is in a normal state to ensure normal operation of the
system.egative cable access.
Warning: Do not connect the PV panel to the battery terminal of the controller, as it
will burn out the controller.It is strictly forbidden to make the battery positive or
negative, extremely short circuit, otherwise it will cause fire or explosion hazard,
please be careful.
Step 2：Wiring diagram
Lock the cable to the binding post through the mounting hole on the lower side of the
cabinet.

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Pic3-2 Wiring diagram
Description: The monitoring background supports the PC host computer, supports the WIFI
module and the GPRS module to expand the APP cloud monitoring (optional). For details,
see the PC host computer and the APP user manual;
The controller defaults to lead-acid batteries. If you need to connect the other types of
batteries, you need to set the corresponding battery type and series number. For details,
please refer to the relevant settings of the PC host computer or APP manual.
Caution！
1. Danger of electric shock! It is forbidden to touch the live parts of high voltage photovoltaic
modules with bare hands;
2. Make sure that the solar array voltage in the system does not exceed the maximum input
voltage range of the controller;
3. The system needs to be connected to the inverter. Please connect the inverter directly to
the battery. Do not connect to the load end of the controller.