Ramsond SUNSHIELD PRO User manual

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User Manual
System Voltage :12V/24V/36V/48V
Max PV Voltage: 150V
Rated Current : 50A~80A
Date of Purchase ǀS/N
Ramsond Corporation World headquarters
4051 Haggerty Rd.
West Bloomfield, MI 48323
Ramsond North America Service&Warranty Center
14850 Linwood St.
Detroit, MI 48238 www.ramsond.com

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Brief introduction
SDI-P series is the solar power system charge controller with high
performance and high reliability; it is 12/24/36/48v automatic. with max pv
voltage at 150v
SDI-P series charge controller optimizes the algorithm of the battery charge
and discharge. Provide the best possible synergy to the PV output and battery
storage. System looses to a minimum. The LCD screen will provide more
detailed system parameters and display digital meters. And with automatic sleep
capability. The lowest quiescent current can be less than 8mA.
SDI-P series products use the high-quality components. and through a
rigorous quality control and factory test .Already got CE.ROHS certification.
Products can have a long-term safe and reliable operation within the
definition.
PV and Battery both with against reverse protection.
All products are equipped with soft start and overload time limit
protection, adaptation capacitive load, such as inverters.
Precautions
SDI-P series charge controller heat dissipation through the bottom radiator,
please ensure good ventilation when vertical installed according to the best air
duct, when controller work in a big current. the radiator may with a high
temperature. Please careful not to touch the radiator to avoid burns.
SDI-P series already built in over-current fuse of the battery charge and
discharge. but we still suggested that user configure as appropriate effective
fuse and circuit breaker switch according to the system case.
SDI-P series charge controllers all with TVS lightning protection and surge
protection at the access terminal. but such protection is limited. when use in a

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large-scale system, we suggest set more effective lightning and surge protection
device separately.
When use in a complex electrical environment. we suggest you make a
appropriate ground connection for the system.
When connect battery and PV panel. please note the correct wiring and
protection. to avoid wrong wiring and short-circuit. wiring too long, it will have
a greater voltage drop and line loss, and cause excessive surges.
Main Features
➢Optimized PWM charging mode. support MCT three-stage charging.
➢12V/24V/36V/48V system voltage. max PV open circuit voltage at 150v
➢Compatible with normal types of batteries(lead-acid, gel or custom)
➢Variety parameters can be modified.(support panel keypad or infrared
remote control)
➢Support PV/Battery/Load key parameters display and check.
➢Manual, Light Control or automatic dual period load out can be set
➢Support for RS-485 the interface, Mode bus communication, support for
PC remote monitoring （optional）
➢Support USB charge port(5v 1A,optional)
➢Quiescent current can lowest as 8mA
➢Support for external battery temperature sensor
➢Excellent Radiating design, All-metal shell heat radiating. efficient and
artistic
Protective Function
PV array input short circuit, over voltage, over current, reverse polarity
protection.
Battery over charge, over discharge, reverses polarity, over-temperature
protection.
Load short circuit, Overload time limited protection (support for capacitive
load)
Controller over temperature protection

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Installation
Figure1
1) PV terminal
Positive and negative electrode for connecting PV array.
(2) Battery terminal
Positive and negative electrode connected with battery pack.
(3) Load terminal
Positive and negative electrode connected with DC load.
(4) RS485 terminal
Connected with computer or other controllers to realize the remote
communication.
(5) The terminal of the temperature sensor
Connected with the controller temperature sensor that offered, to provide
battery data for controller..
(6) USB terminal
Provide 5V/1A power supply, can be charged for mobile phones and other
devices.
(7) Infrared signal sensor
Remote infrared communication.
(8) “Enter” or “OK” button
(9) Page “down” button
(10) Page “up” button

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(11) LCD screen display
Display the operating state of controller, real-time parameters, as well as the
realization of human-computer interaction. Also operating settings for the
controller.
(12) Mounting holes
Figure 2 Dimension
Cover of SDI-P series 50A~80A(SDI-P50,SDI-P60,SDI-P70,SDI-P80)
External Dimension: 186x106 mm
Distance of installation hole : 177.5x60 mm
Installation hole: 6.5x3.5 mm
Install Step
a) Type Selection
Please strictly follow the system application range .choose the most
appropriate products, special attention that the PV side maximum open
circuit voltage should not exceed the controller maximum allowable voltage.
The SDI-P series products can stable operation in a long-term at rated
current. and can also withstand a certain amount of overload. but should be
use to avoid overload operation in a long time.

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b) Installation Way
SDI-P Series controller should be perpendicular installation. To ensure
that the thermal resistance of the wind through the radiator is minimum, the
controller external upper and lower ends should at least keep 15cm space
for airiness
c) Battery Connection
Please select the connect cable diameter according to the controller
input/output maximum current value. and it is better select the multi-strand
and thicker cable. the wiring length as short as possible to avoid too long
or too thin. in order to reduce the cable loss and cable temperature.
Firstly, connect the battery, after correctly connection. the LCD display
will light up within 2 seconds. and enter self-test, will display the automatic
identification system voltage value. If the voltage display does not match
with the actual system voltage. Please enter manually set state to adjust
it.Typically,as long as the battery voltage is in the range shown in the
following table, the controller can correctly recognize the system voltage
without manually setting.
12V system
DC 7V-17V
24V system
DC 18V-28V
36V system
DC 32V-40V
48V system
DC 42V-60V
Noted.: please use insulating screw driver when wiring, to ensure the
connection is secure After battery connection, the user should set up the battery
type and charge way. SDI series with default battery type at lead-acid battery,
three –stage charging.
d) Battery temperature detection cable Connection
Battery temperature detection, Mainly in order to compensate for the battery
temperature characteristics of the battery at different temperature, normal is -
5mV/℃/2V, in the case of less demanding system can not be installed. A
standard temperature Sensor(DS18B20) for SDI-P series.
e) Solar Panel Connection
Make sure the PV voltage in the correct range before wiring , to avoid
damage to the controller. After connecting the PV, LCD screen will display
the status of PV solar panel.

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f) Load Connection
Before load connected, turn off it. If you need control the load work ,please
connect it at controller load port. SDI-P controller defaults to directly open load.
Users can set the controller work mode as needed.
In many cases, users also can directly connect the load to the battery, but at
this time, the current between load and battery has not be detected & controlled
by the controller. We suggest user installed external fuse or breaker to avoid
excessive inrush current blown the fuse which built-in.
SDI-P series controller can be soft-start and provides a larger starting
current to the load, especially for the capacitive load equipment such as
inverters, switching power supplies, etc.
g) Running operation
After wiring, SDI-P controller will display system status and parameters and
enter the normal operating state. Once abnormal, the fault code will be
displayed.
LCD panel setup Instructions
SDI-P series comes standard with large LCD screen and 3 buttons. You can
set various functions and parameters through the panel keypad. also supports
infrared remote control(RC-3)to setup .
After battery connected, the LCD will enter normal working status in a few
seconds, the message shown in Figure 3.

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Figure 3 LCD screen display
In addition to panel displays battery type, work model, charge and discharge
status. The user can press the “up” or “down” button to view the parameters of
the controller (battery voltage, load current,PV current, the charge/discharge
capacity of last week)
In manual mode, press the "OK" button to on/off the load.
Note: When Controller fails, the error icon flashes and an error code
display on the LCD screen. User can press “up” or “down” button to view details.
Table of Error Code
E101
load short-circuit
E203
Battery Over-temperature
E102
load Overload
E301
PV over-voltage
E201
Battery over-discharge
E302
PV Over-current
E202
Battery Over-charge
E401
Controller over-Temperature
Parameter Setting
Press "OK" button Continue for three seconds, the controller will enter the
setup mode.As Figure 4

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Figure 4 Parameter Setting Initial Screen
The user can press “up” or “down” button to select the controller parameters
which need be modified. Then press “ok” to set it. When it flashes data can be
modified. After editing press “ok” again. It will stop flash. Data is saved. After
setting,press“ok”in 3 seconds or no operation in 50s,it will automatic return back
to the main page.
Items
FUN
parameter
LOAD
0
Load work model
LOAD
1
1st period time(auto mode )
LOAD
2
Morning period time (auto mode)
PV
3
Light control voltage
PV
4
Light control delay time(minute)
BAT
5
Battery type
BAT
6
System Voltage
Note: following parameter only for battery type at DIY
BAT
7
Over voltage
BAT
8
Over discharge voltage
BAT
9
Over discharge return voltage
BAT
b
Boost charge voltage
BAT
F
Float charge voltage
Table of Parameter Selection
Controller Operate Description
1. Battery charge after the battery type be set, SDI-P series controller
will be automatic
running, without human intervention. In special cases, the user also can
adjust parameters. The controller uses three-stage charging method provides
a fast, efficient, and safe battery charging. See the following chart Figure 5

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Figure 5: Charging Curve
a) Bulk Charging
When battery voltage has not been filled to the set value, the controller will
provide the largest charge current for battery charging. During the fast charge
phase, solar panels straight to battery, PV voltage will be clamped on the
battery voltage.
b) Constant Charging
When battery voltage reaches the value of equalizing charging, PWM
charging mode will start. Continue charging for 2 hours, the controller will
regulate the battery voltage to maintain it at the setting value, to prevent battery
overcharge.
c) Float Charging
At this stage the battery nearly full & no need more power. But the controller
will remain very weak charge current. The purpose is to compensation for the
system loses to keep the battery always in saturation, while extended battery
life.
2. Controller Discharge
SDI-P series controllers can be used in unattended mode, run automatically
according to the set operating mode. The controller with 3 work modes.
Light Control mode: when there is no sunlight, the PV voltage drops to
light control starting value. load will running after server minutes. when the

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sun rise, the PV voltage will rise to light control voltage start point, the load
output will be off.
Manual mode: it will manual on or off by press ”OK” button or RC-3
infrared remote control.
Auto mode: This mode with light control + time delay function. There are 2
period working time can be set. After Sun set, load output will be on auto
and work from 1st period. then the load will cut off at the end of 1st period.
Before sun rise, it will work in 2nd period, and cut off when sun rise.
3. Remote Communication (optional)
SDI-P series controllers with optional 485 communication interface for
remote communication through MODBUS protocol, in order to change the
controller operating parameters and status, monitor status of the controller.
Others
Additional interfaces (optional)
SDI-P series controller configuration USB interface is optional interface,
which Supports load output capability of USB-5V1A.
Battery Temperature Sensor
SDI-P series controller configures an external battery temperature sensor
“DS18B20”.
Protective function
The controllers have the best protection features to protect the safety and
reliability of the controller.
●Over-discharge protection the battery during discharge, more than the
termination voltage of the
Battery discharge, it may cause pressure within the battery while also
continue to discharge, positive and negative active material damage was
reversible, so that the battery capacity to produce significantly reduced.
When the battery reaches over-discharge protection voltage, the controller
into the over-discharge protection state, turn off the load output, protect the

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battery will not be damaged. When the battery charge is higher than the
over-discharge voltage returns, the controller exits over-discharge protection,
restore power to the load.
●over-voltage protection:
When the battery voltage is increased to over-voltage point, the
controller enters the state of overcharge protection; turn off the load
output, in order to protect the load is not damaged. When the battery
voltage is lower than over-voltage, the controller exits over-voltage
protection, restoration load output.
● Overload protection
When the load current exceeds the rated current, will enter the overload
time limited protection mode, to avoid damage to the controller. When the
load current is less than 1.25 times the rated current, the controller may
overload long run, but by the controller temperature protection control.
{Overload time limited protection}:
The load current is equal to 1.25 times the rated current with working
for 120s, load disconnect output; 1.5 times for 10S, 2 times overload
protect immediately.
●Load Fault protection:
If load short circuit, the controller automatically protection, the Controller
will detect whether the load fault exclusion. If the fault persists more than 5
times, the controller will off the load output.
●Over-temperature protection:
When the controller itself temperature is too high (> 85 °), in order to
avoid damage, the controller will cut off the load output or charging, stop
working, and so on after the temperature dropped to 65 °, and then
restarting the load or charge.
●Temperature sensor damage fault protection:
When the temperature sensor short circuit or damage, the controller will
default to work at 25 ℃, in order to avoid erroneous temperature
compensation for damage to the battery.
●Battery polarity protection:

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Battery reverse polarity, the controller will not be damaged, will continue
normal operation after correcting wiring errors.
●Light battery polarity protection:
the photovoltaic cell polarity reverse, the controller will not be damaged,
will continue normal operation after correcting wiring errors.
Products Selection And Technical Specifications
Series
SDI-P series PWM LCD solar charge controller
Rated charge current
50A
60A
70A
80A
Model
SDI-P50
SDI-P60A
SDI-P70
SDI-80
System voltage
12V\24V\36V\48V
PV max open circuit voltage
150V
Rated load current
50A
60A
70A
80A
Direct charge voltage
GEL: 14.4V, LEAD ACID: 14.2V, Custom: 9~17V (x12V)
Boost charge voltage
GEL: 14.8V, LEAD ACID: 14.6V, Custom: 9~17V (x12V)
Float charge voltage
GEL / LEAD ACID: 13.8V, Custom: 9~17V (x12V)
Over-discharge return voltage
GEL / LEAD ACID: 12.6V, Custom: 9~17V (x12V)
Over-discharge voltage
GEL：11.0V，LEAD ACID: 11.1V, Custom: 9~17V (x12V)
Loss
≤15mA(12V); ≤10mA(24V); ≤8mA(48V)
Load dual period control
Auto
External temperature sensor
DS18B20
Temperature compensation
-5mV/℃/2V
Communicate interface
RS485,MODBUS
USB interface
5V 1A
Dimensions
186x107x67mm
Terminal Connection
2AWG 25mm²
Net weight
1025g
Protection class
IP30

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LCD operate temperature range
-20℃～+70℃
Work temperature range
-25℃～+55℃
Humidity
≤95% N.C.
NOTE: Factory reserve the rights of changing parameters without notice
Warranty
The Ramsond Sunshield PRO Charge Controller has a standard three years
Limited warranty, parts and labor included. During the warranty period,the buyer
is responsible for return shipping back to our service center for inspection and
repair.
After expiration,Ramsond corporation must charge a fee for any repair services
requested.
Ramsond explicitly excludes product damage caused by carelessness or
negligence; if the problem was preventable by proper usage, then the warranty
is not applicable and Ramsond Corporation must charge a fee for repair
services. For complete information on warranty limitations and exclusions,
please visit ‘http://www.ramsond.com, email us using the information below, or
call us at the Sales/Service number also listed below.
Troubleshooting
If you have any problem or questions. please do not hesitate to contact us
by email or by phone. Please have your original transaction information
ready, as well as a thorough description of any issue you may be
experiencing.
Contact Information
Corporation
Headquarters
4051 Haggerty Rd.
West Bloomfield Township.MI 48323
Sales/Service:866-777-7071
General Inquiry:248-363-8302

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Fax:[phone]
Sales/Service Email:[email protected]
Technical Support Email:[email protected]
Web:www.ramsond.com
Note :
Dates
Time
Weather
Solar
Voltage
Solar
Amperage
Battery
Voltage