Y-Solar Smart-MPPT Li Series User manual

Y-SOLAR

2.Safty Instruction and Waiver of Liability
Dear Clients,
This manual gives important recommendations for installing, programming, using and so on. Read it carefully in your own interest
please.
Thanks for selecting the Smart-MPPT Li series solar controller. Please take the time to read this user manual, this will help you to
take advantage of controller’s new features.
1.Description of Function
Smart-MPPT Li series intelligent MPPT solar controller is
programmable and especially for solar light system.
The charging efficiency is about 20% higher than the
traditional PWM controller, which can make the cost of the
whole system much lower.
It comes with a number of outstanding features, such as:
Innovative Max Power Point Tracking(MPPT) technology, tracking
efficiency >99%
Full digital technology, high charge conversion efficiency up to 96%
5 stages time can be adjusted
Can read parameters and running status
When BMS power off because of LVD, it can activate the system
automatically
Charging target voltage and charging recovery voltage can be set
Day/Night threshold can adjust automatically
Remote Unit to configure, with LCD display
IP67, Strong and durable aluminum case
Full automatic electronic protect function
2.1 Safety
①The solar charge controller may only be used in PV
systems in accordance with this user manual and the specs
of other module manufacturers. No energy source other
than solar gen. may be connected to the solar charge
controller.
②Batteries store a large amount of energy, never short
circuit a bat. under all circumstances. We strongly
recommend connecting a fuse directly to the battery to
protect any short circuit at the bat. wiring.
2.2
③Batteries can produce flammable gases. Avoid making
sparks, fire or any naked flame. Make sure that the bat.
room is ventilated.
④Avoid touching or short circuiting wires or terminals. Be
aware that the voltages on special terminals or wires can
be as much as twice the battery voltage. Use isolated tools,
stand on dry ground, and keep your hands dry.
⑤Keep children away from batteries and the charge
controller.
Liability Exclusion
The manufacturer shall not be liable for damages, especially
on the battery, caused by use other than as intended or as
mentioned in this manual or if the recommendations of the
battery manufacturer are neglected. The manufacturer shall
not be liable if there has been service or repair carried out
by any unauthorized person, unusual use, wrong
1.As the chart, connect the load with the corresponding
red(positive) and black(negative) cables firstly, then seal
them with tape.
2.Connect battery with the corresponding red(positive)
and black(negative) cables, Load will be on.
3.Connect panel with the corresponding red(positive) and
black( negative) cables, the controller begins charging
after 2-30s.
4.Confirm the LED display status: If the green LED is on or
flashes and the red LED is off, it is normal;
If the red LED is on or flashes, it means fault, please refer
to the 9.2Faults and Alarms to identify the reason.
Solar charge controller Smart-MPPT Li series User Manual
The following diagrams provide an overview of the
connections and the proper order
4.Installation
Page 1 of 5 pages
3.Dimensions
Make sure the wire length between battery and controller
is as short as possible.
Recommended mini. Wire size: 8/10A: 2.5mm²; 15A: 4mm².
MPPT
⑤
④①②
③⑥
Y
SMR-MPPT1010/1075/1575 Li
Y
SMR-MPPT0875 Li
Model X(mm) Y(mm)
SMR-MPPT0875 Li 81 23.1
SMR-MPPT1010/1075/1575 Li 145 30

Page 2 of 5 pages
Solar charge controller Smart-MPPT Li series User Manual
5.Remote control, Default setting
!
Remark：Be sure to set only one Smart-MPPT Li unit at
a time.
Num
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Factor y Default
24H
100%
0H
100%
0H
100%
0H
100%
0H
100%
8.0V
0min
0.3A
No
LI
16.8V
16.4V
12.0V
12.6V
Name
Time1
Dim1
Time2
Dim2
Time3
Dim3
Time4
Dim4
Time5
Dim5
D/N Thr
D/N Dly
Load I
Dim Auto
Battery
CVT
CVR
LVD
LVR
5.1 Read the parameters
Press the "Parameter" key of the S-Unit to read the
setting parameters of the controller.
Num
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Name
Status：
Batt V
Load I
Load V
PV V
PV I
Energy
OD Times
FC Times
Day1-HV
Day1-LV
Day2-HV
Day2-LV
Day3-HV
Day3-LV
Name describe
Charge
Battery voltage
Load current
Load voltage
PV voltage
PV current
Total generating capacity
Over discharge times
Fully charge times
A day ago highest voltage
A day ago lowest voltage
Two days ago highest voltage
Two days ago lowest voltage
Three days ago highest voltage
Three days ago lowest voltage
Unit
V
A
V
V
A
AH
Times
Times
V
V
V
V
V
V
5.2Read the running status
Press the "Status" key of the S-Unit to read the
running status of the controller.
When Smart-MPPT Li series controller is connected to the
system, you can choose “DC 5-Stage”icon on the display
of S-Unit infrared remote controller, as shown below!
Detailed setting operations, please read S-Unit User
Manual.
6.Starting up the controller
6.1 el t S f Tes
s o eontr r ped i baer
A s on as th c olle is supli w thtt y, it
rf t t in he th d s l c a stats a seles rout e. T n e i p ay h nges to
e a on.
normal op rti
2t 6. Ba tery Type
h ce is a e i m e g a e .
T e ontrollr pplid to Lith u r char e bl battery
T rg n e r t a gin t e
he chaig voltag tage nd char g vol age recov ry
dn c s r
can be set accor i g to u tome requirements.
e oni ~ e s lh u t
Th c troller is su tablefor 3 8 s rie it i m batery.
l g fli a .7d
(The nomina voltaeo a sing e l thium b ttery is 3 V an
e h i g volt e .2
th c arg n age targtis4V).
MPPT
④⑥
③⑤
②
①
45°
!
1.Dimming function, if you set 0%, the load will be
off, other wise the load will be on.
2.The setting data of“Load I”and“Dim Auto”is for
“DC”series with LED driver built-in, does not affect the
operation of this type controller.
5.3 Test function(Streetlight mode)
Press the“ Test”key of S-Unit, the controller will
turn on load for 1min. During daytime, the testing
function can help users to verify correct installation
or for system trouble shooting. 1min later the load
will automatically turn off.
Note: Default “24H”mode, the test key is invalid.

Solar charge controller Smart-MPPT Li series User Manual
Page 3 of 5 pages
Smart-MPPT Li series controller with advanced light
control function. The modes of lighting can be based on
customer needs.
7. Output Function
7.2 Dusk to Dawn (D2D)
Dusk to Dawn(D2D)
Light on
Light off
D/N Thr D/N Thr
Sunset Sunrise
D/N Dly
If “Time1” of “DC 5-Stage” is set to “D2D”,the
controller works in dusk to dawn mode.
!
1.Smart-MPPT Li series controller is set to D2D mode,
the corresponding dimming setting is still valid.
2. If “Time1”is set to D2D mode, “Time4” can not be
set to T0T mode.
7.3 Five-stage Night Mode
Time1Time2Time5Time3 Time4
Light on
Light off
D/N Thr D/N Thr
Sunset Sunrise
D/N Dly
You can set the Time 1-5 and Dim 1-5 with S-Unit.
7.4 T0T mode can set the load on time before
morning coming
(
)
D/N Thr
Time1Time2Time5
Time3 T0T
Light on
Light off
D/N Thr
Sunset Sunrise
D/N Dly
If "Time4" of the S-Unit is set to "T0T", this mode is T0T mode.
* If “Time4”is set to T0T mode, “Time1” can not set to D2D
mode.
8.LVD, LVR, Threshold
7.1 Standard(24H)
Light On
D/N Thr
D/N Thr
Sunset Sunrise
If “Time1” of “DC 5-Stage” is set to “24H”and
sent to the controller successfully, the controller’s
load will always be open.
8.3 Day/Night Threshold, Day/Night Delay
The controller recognizes day and night based on the solar array
open circuit voltage. This day/night threshold can be modified
according to local light conditions and the solar array used.
Day/Night threshold setting range: 3.0~20.0V.
8.1Low Voltage Disconnect(LVD)
!
1. Day/Night threshold voltage should be set around
0.22 times of open circuit voltage.
2.Day/Night threshold voltage of load disconnect is 1V
higher than the setting data, means the load will disconnect
when the solar voltage at 4.0~21.0V.
3.The controller has an automatic day/night threshold
adjustment function. If the lowest voltage of solar array is
higher than the setting day/night threshold, the load has no
output in first night, 24 hours later the controller can
automatically adjust the day/night threshold to meet the
requirements of lighting at night.
8.2Low Voltage Reconnect(LVR)
Low voltage reconnect setting range: 9.6~31.0V.
Low Voltage Disconnect 9.0~30.0Vsetting range:
Sunset
Dusk
Sunrise
Dawn
3.0~20.0V 4.0~21.0V
!
1.If the controller goes into low voltage disconnect, it
will restore only when the battery being recharged to the
recovery voltage.
2."LVR"should be higher than "LVD" at least 0.6V.
3.SMR-MPPT0875 Li Series:
Low Voltage Disconnect setting range: 9.0~15.0V.
16Low voltage reconnect setting range: 9.6~ .0V.
In the evening, when the solar array open circuit
voltage reaches the setting day/night threshold, you
can adjust the day/night delay time to make the load
turn on a little later.
Day/Night delay time setting range: 0~30min.

Page 4 of 5 pages
Solar charge controller Smart-MPPT Li series User Manual
9.LED indications and Faults & Alarms
9.1LED Display Explanation
9.2Faults & Alarms
Fast flash(0.1s/0.1s)
LED
Status
Function
Green
LED
Red
LED
On
Off
On
Flas hi ng( 0.5s/0. 5s)
Fas t flash(0.1s /0.1s)
Red
Green
Both off
Both on 1s
Battery connected,
Daytime detected
Battery connected,
night detected
No fault detected
Low voltage protection
Overcurrent or
short circuit protection
Over temperature
protection
Over voltage protection
No connection to battery
Start up Self test
MPPT Charging
Slow flash( 1s/1s)
Slow flash(0.5s/2s)
Fault Status Reason Remedy
Over
voltage
protection
Batt e ry
can’ t be
char g ed
Ove rcu rr e nt,
sh ort cir cu it
protec ti on
Battery capacity
is low
Loads are
over current
or short circuit
High battery
voltage
>(”CVT” + 0.2V)
PV panel fault
or reverse
connection
Load will be reconnected
when battery is recharged
Switch off all loads,
remove short circuit,
load will be reconnected
after 1 minute automatically
Green
LED
is on
Low
voltage
protectio n
Low v olt .
protec tion
Over temp .
protection
Controller temp.
is too high
Load reconnects
after temp. reduces
High
voltage
at
battery
terminal
Loads
are
not
powered
Check if other sources
overcharge the battery.
If not,controller is damaged.
Battery wires or
battery fuse
damag ed ,
battery has high
resistance .
Check battery wires,
fuse and battery.
Battery is
empty
after a
short time
Battery has low
capacity Change battery
Check panels and
connection wires
Flash(0.5s on/0.5s off ) Charging, reach the
target voltage
Red LED
Green LED Receiver
Emitting
10.Safety Features
Short circuit
Over current
Over voltage
Over temp.
Reverse
polarity
Solar terminal
Protected *1
Protected
Protected
Max.60V *3
Battery terminal
Protected
Protected *2
Max. 40V *4
Load terminal
Protected *1
Switches off
Switches off
with delay
The controller cuts off the load if the
temperature reaches the set value.
Switches off
immediately
Reverse
Current
Under
voltage
*1.Controller can protect itself, but loads might be damaged.
*2.Battery must be protected by fuse, otherwise battery will
be damaged.
*3.The PV panel voltage should not exceed 60V for a long
time.
*4. Please refer to “11.Technical Data” to get the max
voltage of battery.
!
Warning: The combination of different error conditions
may cause damage to the controller.
Always remove the error before you continue connecting
the controller.

Solar charge controller Smart-MPPT Li series User Manual
11.Technical Data
Page 5 of 5 pages
Item
Max Charging Current
Charging voltage target
Charging voltage recovery
Low voltage disconnect
Low voltage reconnect
MPPT Charging Voltage
Battery Type
Max volt on Bat. Terminal
Max volt on PV terminal
SMR-MPPT0875 Li SMR-MPPT1010 Li SMR-MPPT1075 Li SMR-MPPT1575 Li
8A 10A 15A
11.0~17.0V 11.0~32.0V（Programmable）
9.5~16.8V 9.5~31.8V（Programmable）
9.0~15.0V 9.0~30.0V（Programmable）
9.6~16.0V 9.6~31.0V（Programmable）
<
Li
25V 40V 35V
60V 90V 60V
Charging voltage target
Max input power
25W x #(3~4) 33W x #(3~8)50W x #(3~8)
Eg: 75W(3Series)
~ 100W(4Series)
Eg: 99W(3Series)~ 264W(8Series)Eg: 150W(3Series)
~ 400W(8Series)
Dusk/Dawn detect volt.
Day/Night delay time
MPPT tracking range
Output Current
Max tracking efficiency
Max charge conversion
Self consumption
Dimensions
Weight
Ambient temperature
Ambient humidity
Protection degree
Max Altitude
3.0~20.0V（Programmable）
0~30Min（Programmable）
（Battery Voltage + 1.0V）~Voc*0.9
8A 10A 15A
>99.9%
96.0% 97.0%
6mA
85.8 x 81x23.1mm 85.8 x 145 x 30mm
260g 600g
-35~+60℃
0~100%RH
IP67
4000m
Battery
Parame-
ters
Panel
Parame-
ters
Load
System
Parame-
ters
Note: #(3~4)/#(3~8)means the number of Li batter y series.