MidNite Solar 10-528-1NMPPT60DIY Manual

MNMPPT60DIY
User Manual
Solar Charge and Load Controller
Model
MNMPPT60DIY
Batter y voltage
12V/24V/36V/48V
Max. solar panel voltage 150V (25°C), 145V (-25°C)
Code:103825
Max. input power
800W/12V; 1600W/24V; 2400W/36V; 3200W/48V
Charging current
60A
Discharging current
20A
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Table of Contents
1. Product Introduction
1
1.1 Product Over view
1
1.2 Product Features
1
1.3 Exterior and Interfaces
2
1. As this controller deals with voltages that exceed the top limit for human safety,
1.4 Introduction to Maximum Power Point Tracking Technology
2
do not operate it before reading this manual carefully.
1.5 Charging Stages Introduction
4
Safety Instructions
2. The controller has no internal components that need maintenance or ser vice,
thus do not attempt to disassemble or repair the controller.
3. Install the controller indoors, and avoid component exposure and water
intrusion.
2. Product Installation
5
2.1 Installation Precautions
5
2.2 Wiring Specifications
6
2.3 Installation and Wiring
6
3. Product Operation and Display
8
4. During operation, the heatsink may reach a ver y high temperature, therefore
3.1 LED Indicators
8
install the controller in an area with good airflow to prevent heat build up.
3.2 Key Operations
9
5. Install circuit breakers on the PV, and batter y inputs and the load output.
Circuit breaker amperage should be chosen based on wire size. For example if you
3.3 LCD Display and Operations
10
3.3.1 Menu Block Diagram
10
use 10 AWG wire for your load circuit an appropriate breaker would be 30 Amp.
3.3.2 Main Menu23
11
There are many wire Ampacity charts online to aid your selection.
3.3.3 Real-Time Monitoring
12
6. Before installing and wiring the controller, make sure to disconnect the
photovoltaic array and the breaker close to the batter y terminals.
7. After installation, check that all connections are solid and reliable so as to avoid
loose connections that may give rise to dangers caused by heat accumulation.
Warning: means the operation in question is dangerous, and
you should get properly prepared before proceeding.
3.3.4 Parameter Settings
13
3.3.5 Controller Charging and Discharging Related Parameters Setting Descriptions
14
3.3.6 LCD Screen Backlight Time Setting
14
3.3.7 "Clear Historical Data" and "Reset to Factor y Settings"
14
3.3.8 Load Mode
15
3.3.9 Statistic Data
15
3.3.10 Historical Data of the Current Day
16
3.3.11 Device Information
17
3.3.12 Bluetooth Connection Status
! Note: means the operation in question may cause damage.
Tips: means advice or instruction for the operator.
17
4. Product Protection Function and System Maintenance
17
4.1 Protection Functions
17
4.2 System Maintenance
18
5. Product Specification Parameters
19
5.1 Electric Parameters
19
5.2 Batter y Type Default Parameters
20
6. Conversion Efficiency Cur ve
21
6.1 12V System Conversion Efficiency
21
6.1 24V System Conversion Efficiency
21
6.3 48V System Conversion Efficiency
21
7. Product Dimensions
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1. Product Introduction
1.3 Exterior and Interfaces
17
1
1.1 Product Over view
15 Battery Sampling
16
2
15
No. Definition
14
4
②
5
6
16 RS485
No. Definition
12
7
11
④
③
②
①
10
① ② ③ ④
13
3.3V
GND
DD+
9
17 Controller communication port RJ12 (6-pin)
8
RS232
No.
①② ③ ④ ⑤⑥
1.2 Product Features
® With the advanced dual-peak or multi-peak tracking technology, when the solar panel is shadowed or
part of the panel fails resulting in multiple peaks on the I-V cur ve, the controller is still able to
accurately track the maximum power point.
® A built-in maximum power point tracking algorithm can significantly improve the energy utilization
efficiency of photovoltaic systems, and raise the charging efficiency by 15% to 20% compared with the
PWM controllers.
A
® combination of multiple tracking algorithms enables accurate tracking of the optimum working point
on the I-V cur ve quickly.
® The product boasts an optimum MPPT tracking efficiency of up to 99.9%.
® Advanced digital power supply technologies raise the circuit's energy conversion efficiency to as high
as 98%.
® Multiple charge profiles for AGM, Flooded etc.
® The controller features a limited current charging mode. When the solar panel power exceeds a certain
level and the charging current is larger than the rated current, the controller will automatically lower
the charging power and bring the charging current to the rated level.
® Instantaneous large current startup of capacitive loads is supported.
® Automatic recognition of batter y voltage is supported.
® LED fault indicators and an LCD screen which can display abnormality information help users to quickly
identify system faults.
® Historical data storage function is available, and data can be stored for up to a year.
® The controller is equipped with an LCD screen with which users can not only check device operating
data and statuses, but also modify controller parameters.
® The controller supports standard Modbus protocol, fulfilling the communication needs of various
occasions.
® All communications are electrically isolated.
® The controller employs a built-in over-temperature protection mechanism. When temperature
surpasses the set value, the charging current will reduce in proportion to the temperature and loads will
be disconnected to reduce the temperature rise of the controller, protecting the controller from being
damaged by overheated.
® External batter y voltage sensing function eliminates voltage error due to line losses.
® Temperature compensation allows controller to adjust charging voltages based on temperature to
extend batter y life.
® The controller also features a batter y over-temperature protection function, and when the external
batter y temperature exceeds the set value, charging and discharging will be shut off so as to protect
components from being damaged by overheat.
® TVS lighting protection. Provides limited secondar y protection from lightning and surges.
+
① ②
3
①
This product can keep monitoring the solar panel's generating power and tracking the highest voltage
and current values (VI) in real time, enabling the system to charge the batter y at maximum power. It's
designed to be used in off-grid photovoltaic systems to coordinate operation of the solar panel, batter y
and load, functioning as the core control unit in off-grid photovoltaic systems.
This product features an LCD screen which can dynamically display the operating status, operating
parameters, controller logs, historical data, control parameters, etc. Users can check parameters using the
keys, and modify control parameters to cater to different system requirements.
The controller utilizes standard Modbus communication protocol, making it easy for users to check and
modify system parameters on their own. Besides, with the free monitoring software we provide, users'
varied remote monitoring needs can be well satisfied.
With comprehensive electronic fault self-detecting functions and powerful electronic protection
functions built inside the controller, component damage caused by installation errors or system failures
can be avoided to the greatest extent possible.
Definition
Transmitting terminal TX
Receiving terminal RX
Power supply grounding/
signal grounding
Power supply grounding/
signal grounding
Power supply positive
Power supply positive
Fig. 1-1 Product appearance and interfaces
No.
Item
No.
j
k
l
m
n
o
p
q
r
Charging indicator
s
Item
Batter y "-" interface
Batter y indicator
11
Load "-" interface
Load indicator
12
Batter y "+" interface
Abnormality indicator
13
Load "+" interface
LCD screen
14
External temperature sampling interface
Operating keys
15
Batter y voltage compensation interface
Installation hole
16
RS485 communication interface
Solar panel "+" interface
17
RS232 communication interface
Solar panel "-" interface
1.4 Introduction to Maximum Power Point Tracking Technology
Maximum Power Point Tracking (MPPT) is an advanced charging technology that enables the
solar panel to output more power by adjusting the solar module's operating status. Due to the
nonlinearity of solar arrays, there exists a maximum energy output point (maximum power
point) on their cur ves. Unable to continuously lock onto this point to charge the batter y,
conventional controllers (employing switching and PWM charging technologies) are not
optimized to get the most power from the solar panel(s). But a solar charge controller
featuring MPPT technology can continuously track arrays' maximum power point so as to get
the maximum amount of power to charge the batter y.
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Take a 12V system as an example. As the solar panel's peak voltage (Vpp) is approximately 17V
1.5 Charging Stages
while the batter y's voltage is around 12V, when charging with a conventional charge controller, the
solar panel's voltage will stay at around 12V, failing to deliver the maximum power. However, the
MPPT controller can overcome the problem by adjusting the solar panel's input voltage and current
in real time, realizing a maximum input power.
The MNMPPT60DIY solar charge / load controller charges in three stages. The first stage is bulk
charging where the all available power goes to the batteries until they reach the absorb voltage.
the second stage is absorption where the controller maintains the preset absorb voltage for the
time selected provided enough solar energy is available. The last stage is float where the batteries
Compared with conventional PWM controllers, the MPPT controller can make the most of the solar
are held at the float voltage setting for as long as enough solar energy is available.
panel's max. power and therefore provide larger charging current. Generally speaking, the latter can
raise the energy utilization ratio by 15% to 20% in contrast with the former.
Charging current
VP cur ve
A
B
Bulk charging
Absorb
charging
Equalizing charging voltage
VI cur ve
Charging current
C
Float
charging
A
B
Bulkcharging
Absorption
charging
Boost
B
u
lk
Absorb charging voltage
Float charging voltage
Charging return voltage
MPPT point
Time
Charging current
Time
Charging current
Duration: 2h
( range: 10 to 600min)
Max. current
Cumulative time: 3h
Time
Fig. 1-5 SLD Batter y charging stages diagram
Time
Fig. 1-6 LI Batter y charging stages diagram
a)Bulk charging
At the bulk charging stage, as the batter y voltage has not reached the set value of full voltage (i.e.
equalizing/absorbvoltage) yet, the controller will perform MPPT charging on the batter y with the
Fig. 1-2 Solar panel output characteristic cur ve
maximum solar power. When the batter y voltage reaches the preset value, constant voltage (absorb)
Meanwhile, due to changing ambient temperature and illumination conditions, the max. power
point varies frequently, and our MPPT controller can adjust parameter settings according to the
environmental conditions in real time, so as to always keep the system close to the max. operating
charging will begin.
b) Absorb charging
When the batter y voltage reaches the set value of sustaining voltage, the controller will switch to
constant voltage charging. In this process, no MPPT charging will be performed, and meanwhile
point. The whole process is entirely automatic without the need of human inter vention.
the charging current will also gradually decrease. The sustaining charging stage itself consists of
two sub-stages, i.e. equalizing charging and boost charging, the two of which are not carried out in
I (A)
I ( A)
a repeated manner, with the former getting activated once ever y 30 days.
By default, absorb charging generally lasts for 2h, but users can adjust preset values of duration
30℃
40 ℃
With temperature dropping,
current stays stable and
power increases
Current decreases with dwindling light
50℃
60℃
70℃
U( V )
Solar panel temperature
20℃
and boost voltage point according to the actual needs. When the duration reaches the set value,
the system will then switch to floating charging.
c) Float charging
When the absorb cycle has completed, charging voltage is reduced to the float charge voltage settling.
U( V)
Open-circuit voltage decreases with rising temperature
Open-circuit voltage decreases with dwindling light
Fig. 1-4 Relation between solar panel output
characteristics and temperature
Fig. 1-3 Relation between solar panel output
characteristics and illumination
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4
u When connecting the system, the output terminals' voltage may exceed the top limit for human
Ø Equalizing charging
Warning: risk of explosion!
In equalize charging, an open lead-acid batter y can produce explosive gas. The batter y chamber
must have good ventilation to reduce the risk of explosion.
Note: risk of equipment damage!
Equalizing charging may raise the batter y voltage to a level that may cause damage to sensitive
DC loads. Check and make sure that allowable input voltages of all the loads in the system are
greater than the set value for batter y equalizing charging.
Note: risk of equipment damage!
Overcharge or too much gas generated may damage batter y plates and cause active material on
the batter y plates to scale off. Equalizing charging to an excessively high level or for too long a
period may cause damage. Refer to the batter y manufacturer ’s recommendations.
Some types of batteries benefit from regular equalizing charging which can stir the electrolyte,
balance the batter y voltage and finish the electrochemical reaction. Equalizing charging raises the
batter y voltage to a higher level than the standard supply voltage and gasify the batter y
electrolyte. When equalize charging, the charging duration is 120 minutes (default). In order to
avoid too much generated gas or batter y overheating, equalizing charging and boost charging
won’t repeat in one complete charging cycle.
Note:
1) When due to the installation environment or working loads, the system can't continuously
stabilize the batter y voltage to a constant level, the controller will initiate a timing process, and 3
hours after the batter y voltage reaches the set value, the system will automatically switch to
equalizing charging.
2) If no calibration has been done to the controller clock , the controller will perform equalizing
charging regularly according to its internal clock .
Ø Float charging
When finishing the sustaining charging stage, the controller will switch to floating charging in
which the controller lowers the batter y voltage by diminishing the charging current and keeps the
batter y voltage at the set value of floating charging voltage. In the floating charging process, ver y
light charging is carried out for the batter y to maintain it at full state. At this stage, the loads can
access almost all the solar power. If the loads consume more power than the solar panel could
provide, the controller will not be able to keep the batter y voltage at the floating charging stage.
When the batter y voltage drops to the set value for returning to boost charging, the system will
exit floating charging and reenter into fast charging.
2. Product Installation
safety. If operation needs to be done, be sure to use insulated tools and keep hands dr y.
u The wiring terminals on the controller can be connected with a single batter y or a pack of
batteries. Following descriptions in this manual apply to systems employing either a single
batter y or a pack of batteries.
u Follow the safety advice given by the batter y manufacturer.
u When selecting connection wires for the system follow all local and national electrical codes.
u Connect the controller's earth terminal to the ground.
2.2 Wiring Specifications
Wiring and installation methods must comply with national and local electrical specifications.
The wiring specifications of the batter y and loads must be selected according to rated currents,
and see the following table for wiring specifications:
Model
MNMPPT60DIY
Batter y wire
Rated charging Rated load current
current
60A
6 AWG
20A
Load wire
Battery voltage
diameter (mm 2 ) Sense wire
12 AWG
20 AWG Min
2.3 Installation and Wiring
Warning: risk of explosion! Never install the
controller and an vented batter y in the same
enclosed space! Do not install the controller in an
6”
Hot air
enclosed space where batter y gas may accumulate.
Warning: danger of high voltage! Photovoltaic
arrays may produce a ver y high open-circuit
2.1 Installation Precautions
voltage. Open the breaker or fuse before wiring,
u Be ver y careful when installing the batter y. For open lead-acid batteries, wear goggles during
installation, and in case of contact with batter y acid, flush with water immediately.
and be ver y careful during the wiring process.
u In order to prevent the batter y from being short-circuited, no metal objects should be placed
near the batter y.
u Hydrogen gas may be generated during batter y charging, make sure the area around the
Note: when installing the controller, make sure
that enough air flows through the controller's
batteries is well ventilated.
u Keep the batter y away from fire sparks, as the batter y may produce flammable gas.
heatsink and leave at least six inches of space both
u When installing the batter y outdoors, take sufficient measures to keep the batter y from direct
above and below the controller so as to ensure
sunlight and rain water intrusion.
u Loose connections or corroded wire may cause excessive heat generation which may further melt
the wire's insulation and burn surrounding materials, and even cause a fire, therefore make sure
all connections are tightened securely. Wires should be secured properly with ties, and when the
6”
Cold air
natural convection for heat dissipation. If the
controller is installed in an enclosed box, make
sure the box has adequate ventilation.
Fig. 2.1 Installation and heat dissipation
need arises to move things, avoid wire swaying so as to keep connections from loosening.
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6
 Connecting to external temperature sensing interface and connecting batter y voltage
Step 1: choose the installation site
Do not install the controller at a place that is subject to direct sunlight, high temperature or
water intrusion, and make sure the area is well ventilated.
Step 2: fit screws in
Use a marking pen to mark the mounting points, then drill 4 mounting holes at the 4 marked
points, and install screws most of the way. Leave enough screw showing to allow mounting the
controller. Make sure the mounting screws are adequate for the load and the mounting surface
can handle the weight.
Step 3: fix the controller
Aim the controller's keyholes at the screws in Step 2 and mount the controller and secure by
tightening the four screws.
compensation cable
‚ Connecting communication cable
ƒ Connecting power cable
Warning: risk of electric shock! We strongly recommend that circuit breakers be connected at
the photovoltaic array side, load side and batter y side so as to avoid electric shock during wiring
operation or faulty operations, and make sure the circuit breakers are off before wiring.
Warning: danger of high voltage! Photovoltaic arrays may produce a ver y high open-circuit
voltage. Open the circuit breaker before wiring, and be ver y careful during the wiring process.
Warning: risk of explosion! Once the batter y's positive and negative terminals or leads that
connect to the two terminals get short-circuited, a fire or explosion will occur. Always be careful.
First connect the batter y, then the solar panel, and finally the load. When wiring, follow the order
of first "+" and then "-".
„ Power on
Fig. 2.2 Wall mounting the controller
Step 4: wiring
First remove the two screws on the controller, and then begin wiring operation. In order to
guarantee installation safety, we recommend the wiring order as indicated by the numbers in the
After connecting all power wires solidly and reliably, check again whether wiring is correct and if
the positive and negative poles are reversely connected. After confirming that no faults exist, first
close the fuse or breaker of the batter y, then see whether the LED indicators light up and the LCD
screen displays information. If the LCD screen fails to display information, open the fuse or breaker
immediately and recheck if all connections are correctly done.
If the batter y functions normally, connect the solar panel. If sunlight is intense enough, the
controller's charging indicator will light up or flash and begin to charge the batter y.
After successfully connecting the batter y and photovoltaic array, finally turn on the circuit
breaker, and then you can manually test whether the load can be normally turned on and off. For
details, refer to information about load working modes and operations.
Warning: when the controller is in normal charging state, disconnecting the batter y will have
some negative effect on the DC loads, and in extreme cases, the loads may get damaged.
Note that the batter y's fuse or breaker shall be installed as close to the controller as possible, and
it's recommended that the installation distance be not more than 12”.
Note:
1) If no temperature sensor is connected to the controller, the batter y temperature value will
stay at a default of 25 °C.
2) If an inverter is deployed in the system, directly connect the inverter to the batter y, and
do not connect it to the controller's load terminals.
following diagram (Fig. 2.3); however, you can choose not to follow this order and no damage will
V-compensation
interface(Batter y)
Temperature
R S485 communication
interface
be incurred to the controller.
7
3. Product Operation and Display
3.1 LED Indicators
9
8
5
3
4
2
6
①
②
③
④
1
①--- PV array indicator
Charging mode
②--- BAT indicator
Batter y status
③--- LOAD indicator
Load status
④--- ERROR indicator
Abnormality indication
Fig. 2.3 Wiring sequence
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PV array indicator:
3.3 LCD Display and Operations
3.3.1 Menu Block Diagram
Main menu
Absorption charge
Real-time
monitoring
Float charge
Equalize charge
Load mode
Parameters
setting
BAT indicator :
LOAD indicator :
Statistic data
Load state
Load turned off
Load overloaded/ short-circuited
Load functioning normally
Historical data of
the current day
ERROR indicator :
Indicator state
Abnormality indication
Off
System operating normally
Steady on
System malfunctioning
Device
information
3.2 Key Operations
Page up; increase the parameter value
in setting
Page down; decrease the parameter
value in setting
Bluetooth connection state
Return to previous menu
(exit without saving)
(This menu is available only to the display units with the optional bluetooth function)
Enter into sub-menu; set/ saveTurn on/
off loads (in manual mode)
Refer to "Usage of Navigation Keys" for operations including entering into and
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3.3.2 Main Menu
3.3.3 Real-Time Monitoring
(This menu is contained in and supplementary to information of the main menu)
In the "main menu", tap "
Battery icon and SOC
menus, or tap "
Load current icon
Charging current icon
Day or night indicating icon
Load icon and state indication
" to enter into this menu; continue to tap "
,
" to switch between
" to return to the "main menu".
Menu level Page
Displayed item/
parameter
Description
Remarks
Charging state indications:
"IDLE", no charging
"MPPT",MPPT charging
37%
ChagState:
Solar panel voltage
26.8V
0W
11.6V
0A
charging power
charging current
Load state
OFF
0A
"LIMIT", current-limited charging
load current
Battery voltage
Steady on
37%
Description
State
"EQU", equalizing charging
"BST", Absorption charging
"FLT", floating charging
1
Definitions of "main menu" icons
Icon or value
IDLE
2
Remarks
Nighttime
Related to
charging
Steady on
Daytime
Steady on
A dynamic arrow indicates charging is in process,
while a static one indicates otherwise.
" 0~100%" Current batter y capacity
" 0%"in slow Batter y over-discharged
flashing
"100%"in quick Batter y over-voltage
2nd-level
menus
3
11.6V
PvVol：
0V
Solar panel voltage
ChagCrt：
0A
Charging current
LoadState：
OFF
Load in "ON" or "OFF" state
LoadCrt :
0A
Load current
BatSoc：
100%
Remaining battery capacity
DevTemp：
27 ℃
Controller temperature
ChagPower：
0W
Charging power
LoadPower：
0W
Discharging power
MinBatVol： 12.5V
The current day's min. battery voltage
MaxBatVol： 13.0V
The current day's max. battery voltage
Controller error codes:
A bulb shown as left and a dynamic arrow indicate the
load is switched on.
Steady on
A bulb shown as left and a static arrow indicate
the load is switched off.
4
Related to
load
Quick flashing Overload or short-circuit protection
Not every
controller has
all of these
“ BAT-OVD”over-voltage
error codes.
“ BAT-UVW ”under-voltage warning
For details,
“ L-SHTCRT ” load short-circuit
refer to the
User Manual
“ L-OVRCRT ”load over-current
of
the
“ DEV-OVRTMP ”internal over-temperature
correspondin
NULL
battery
over-temperature
“ BAT-OVRTMP”
g controller.
“ PV-OVP ”
solar panel overpower
“ PV-OC-OVD ”
solar panel over-voltage
“ BAT-LDV ”over-discharge
Related to
battery
flashing
Steady on
Battery voltage
BatVol：
Fault：
“ PV-MP-OVD”solar panel working over-voltage
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12
System voltage indication
Battery type indication
3.3.4 Parameter Settings
Setting icon
Parameter settings list
Menu level Page
Item to set
Battery system
voltage
Displayed item/
parameter
BatSysVol：
2 st-level
menu
3
4
5
Nominal battery
capacity
Capacity：
0~9999
±5
Device address
Address：
1~60
±1
Over-voltage threshold ：
OverVolDsc
9.0~17.0V
Charging limit voltage ：
ChgLimtVol
Equalizing charging
：
EquChgVol
voltage
9.0~17.0V
Boost charging voltage ：
BstChgVol
9.0~17.0V
Floating charging
voltage
FltChgVol：
9.0~17.0V
Boost charging
recovery voltage
BstChgRev：
9.0~17.0V
LowVolRev：
9.0~17.0V
UndVolWrn：
9.0~17.0V
LVD:11.0V
Boost charging voltage 14.4V
Over-discharge voltage 11.0V
①．The "parameters setting" page will have a brief summary of the parameters already set in this menu;
②．"AUTO": the battery voltage is the automatic recognition system;
③．
"SLD": battery type is sealed lead acid battery;
④．
“SLD”sealed lead-acid battery
“FLD”open lead-acid battery
“GEL ” gel battery
“LI ”lithium battery
“USE ”user defined
⑤．"BST": charging voltage is 14.4V*n;
6
"LVD": over-discharge voltage is 11.0V*n;
9.0~17.0V
*n，±1
In the "parameters setting manual, tap "
" to enter into the following submenus.
3.3.5 Controller Charging and Discharging Related Parameters Setting Descriptions
．All voltage values are to be set based on 12V system settings. For example, for a 24V system, if the
over-discharge voltage is to be set to 22.0V, as n=24/12=2, the value needed in line with 12V system settings is
22.0V/2=11.0V, therefore the over-discharge voltage needs to be set to 11.0V.
②．Tap " ,
" to select the item to be set; then tap " ", and the parameter or sign will flash; continue to tap
" ,
" to adjust the value, and tap " " again to confirm the setting. (For the setting ranges of related parameters,
refer to "Parameter settings list")
③．For parameters on the current menu, those highlighted are settable, while those underlined are not.
3.3.6 LCD Screen Backlight Time Setting
Displayed item/ parameter
Description
BackLight-T：
ON
The LCD screen is lit constantly
BackLight-T：
20S
The setting range of LCD screen backlight time is 1 to 600s
Over-discharge voltage
Over-discharge time
delay
Equalizing charging
time
Boost charging time
Equalizing charging
interval
Temperature
compensation
LowVolDsc：
9.0~17.0V
LVD Delay:
0~60s
±1
Equ-Time:
0~300 MIN
±1
Bst-Time:
0~300 MIN
±1
Equ-Inv：
0~30 D(days )
±1
Temp-Com：
-(3~5)mV/℃/2V
±1
Light control time
L-CON-T:
0~60 MIN
±1
3.3.7 "Clear Historical Data" and "Reset to Factor y Settings"
5~11V
1 to 600s (ON indicates the
screen is lit constantly)
"ON", voice alarm enabled
"OFF", voice alarm disabled
Select "YES" for execution
*n，± 1
“ ClrHistoryData”--> “YES”clear historical data
“ RestoreDefault”--> “YES”reset to factory settings
Light control voltage L-CON-V:
LCD screen backlight ：
BackLight-T
time
6
BST:14.4V
SET
“ 12V”12Vsystem
“24V”24Vsystem
“36V”36Vsystem
“ 48V”48Vsystem
“AUTO”auto recognition
BatType：
Over-discharge
recovery voltage
Under-voltage
warning level
AUTO/SLD
Remarks
Battery type
1
2
Parameter and setting range
Fault voice alarm;
Voice Alarm：
Clear historical data
Reset to factory
settings
<ClrHistoryData>
±1
Enter into the setting menu, tap " , " to move to "BackLight-T：20S", tap "
"to enter into
the setting mode, and tap "
,
" to modify the value within the setting range ( "ON" indicates
the screen will be constantly lit, and the range of backlight time is "1-600" S. ).Tap "
" to confirm
the modification, or tap
“ ” to cancel the modification.
Tap "
" to enter into the submenu, and a "NO" and YES" selection menu will pop up.
Use"
,
" to select "YES", then tap " " again, and "YES” will flash a few times. If "NO" is
selected, tap " " to directly return to the previous level.
<Restore Default> Select "YES" for execution
Note:
1) In this manual, "n" assigned with a value of 1, 2, 3 or 4 denotes a batter y system of 12V,
24V, 36V or 48V accordingly.System voltage indication
2) Before setting parameters, first refer to the User Manual of the corresponding controller.
As some parameters are not settable, operation of setting these parameters on the display unit
will be deemed as invalid or impossible by the controller.
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Menu level
3.3.8 Load Mode
1
Load mode setting icon
2nd-level
menus
Load state
OFF
LOAD
Page
C-chg ：
0AH
Total charging amp-hrs
C-lod ：
0AH
Total discharging amp-hrs
E-chg ：
0KWH
Total power generation
E-lod ：
0KWH
Total power consumption
Total number of operating days
Rundays：
2
<Mode>
Manual
Displayed item/ parameter Description
Load mode
10D
LVD-Count ：
0
FUL-Count ：
0
Total number of over-discharges
Total number of full-charges
3.3.10 Historical Data of the Current Day
1). If the characters displayed on top of "<Mode>" are "ON", it indicates that the load is
switched on, and "OFF" indicates the load is switched off.
2）. Tap " " to enter into the load setting mode, and right below the "<Mode>", the mode
characters or digits will begin to flash. Use " ,
" to select any one from the load modes listed
in the following table, and tap "
" again to complete the load mode setting.
3). Press and hold " " in any menu but not the setting mode: if the current load mode is
"manual mode", pressing and holding the key will switch on/ off the load; if the current load
mode is not "manual mode", pressing and holding the key will cause the display to skip to the
load mode setting interface and a reminder will pop up telling the user in this mode, pressing
and holding the key will not switch on/ off the load.
4). Note: this parameter is ineffective for controllers without loads.
Load mode
Mode
characters
Sole light
Light+On
control mode
Description
The solar panel voltage is lower than the light control on voltage, and after a
preset time delay , the controller will switch on the load;
The solar panel voltage is higher than the light control off voltage, and after
a preset time delay , the controller will switch off the load.
Light control
+ time
control mode
1 to 14H
Light+ 01H The solar panel voltage is lower than the light control on voltage, and after a
...
time delay, the controller will switch on the load. From this point on, the load
Light+ 14 H will work for a preset period of time (1 to 14 hours) before being switched off.
Manual
mode
Manual
In this mode, whether it's day or night, users can press and hold the "OK" key
to switch on or off the load; this mode is often used in some special occasions
or during commissioning.
Debug
As long as the solar panel voltage is lower than the light control on voltage,
the controller will immediately switch on the load;
As soon as the solar panel voltage gets higher than the light control off
voltage, the controller will immediately switch off the load.
This mode is usually used during system installation and commissioning.
Debugging
mode
Normal on
mode
Normal On
Historical data icon
Menu level
2st-level
menu
Page
1
1
2
TOTAL
ANALYSI
DAYS:
LVDC :
9
5
Number of operating days: 9
3
Number of over-discharges:5
The current day's min. battery voltage is 11.5V
HISTORY BtHV：11.6V
The current day's max. battery voltage is 11.6V
Displayed item/
parameter
<History Data>
3st-level
menu
Statistics icon
Historical data of day xxxx (counting backwards)
BtLV : 11.5V
(Historical data including: the current day's min. battery voltage, the current day's max. battery
voltage, the current day's max. charging current, the current day's max. discharging current, the current
day's max. charging power, the current day's max. discharging power, the current day's charging amphrs, the current day's discharging amp-hrs, the current day's total power generation and the current
day's total power consumption)
This mode is suitable for applications requiring 24-hour operation, and after
being switched on, the load keeps outputting in this mode.
3.3.9 Statistic Data
0000 AGO
xxxx Days Ago
Description
Xxxx：select the historical data of day xxxx
(counting backwards)
0000: the current day
0001: yesterday
0002: the day before yesterday
MinBatVol: 11.5V
The selected day's min. battery voltage
MaxBatVol: 11.6V
The selected day's max. battery voltage
MaxChgVol ： 0A
The selected day's max. charging current
MaxLodVol：
The selected day's max. discharging current
0A
MaxChgPow： 0W
The selected day's max. charging power
MaxLodPow： 0W
The selected day's max. discharging power
C-D-Chg：
0AH
The selected day's total charging amp-hrs
C-D-Lod：
0AH
The selected day's total discharging amp-hrs
E-D-Chg：
0kWh
The selected day's total power generation
E-D-Lod：
0kWh
The selected day's total power consumption
Including total charging amp-hrs, total discharging amp-hrs, total power consumption, numbers of
operating days, over-discharges and full-charges
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Ø Load overpower protection
3.3.11 Device Information
When the load power exceeds the rated value, the load will cut off output after a time delay.
Device information icon
4860
INFO
Menu level
Page
1
Product model MNMPPT60DIY
Ver: 00.00.04
Software version
SN:16030032
Product serial number
When the load is short-circuited, the controller can implement protection in a quick and timely
manner, and will tr y to switch on the load again after a time delay. This protection can be carried
out up to 5 times a day. Users can also manually address the short circuit problem when finding the
load is short-circuited via the abnormality codes on the system data analysis page.
Ø Reverse charging protection at night
Description
Item
This protection function can effectively prevent the batter y from discharging through the solar
Controller model
panel at night.
. .
SW-ver： 00.00.04
Hardware version
Ø TVS lighting protection. Provides limited supplemental protection.
Ø Over-temperature protection
Serial：
Controller serial number
Model：
2st-level
menu
Ø Load short-circuit protection
4860
HW ver： 00 02 07
160300032
Software version
When the controller temperature exceeds the set value, it will decrease the charging power or
halt charging. See the following
diagram:
Chg
3.3.12 Bluetooth Connection Status
Bluetooth icon
STATUS
BLE
Connected
Indicating a bluetooth connection status
① When "Disconnect" is displayed on the screen, it indicates no Bluetooth device is currently
connected.
② When "Connected", it indicates some Bluetooth device has been connected.
③ Bluetooth functions and this menu are only available to the "RM-5B" display unit, and not the
"RM-5" unit.
④ The App is only compatible with Android phones with an OS version of 4.3 or above and
iphones.
:/%
100%
95%
85%
80%
75%
65%
60%
55%
45%
40%
35%
25%
20%
15%
5%
0
0
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
Fig. 4-1
When the ambient temperature rises higher than the set value,
the controller will stop charging and discharging.
4. Product Protection Function and System Maintenance
4.2 System Maintenance
4.1 Protection Functions
following items be checked twice a year.
Tem-TVS :/ ℃
u In order to keep the controller's performance at its optimum level, we recommend that the
Ø Waterproof
u Make sure the airflow around the controller is not blocked and clear away any dirt or debris
Waterproof level: Ip32
Ø Input power limiting protection
When the solar panel power exceeds the rated power, the controller will limit the charging power
under the rated power so as to prevent excessively large currents from damaging the controller and
enter into current-limited charging.
on the radiator.
u Check if any exposed wire gets its insulation undermined due to exposure to sunlight,
friction with other adjacent objects, dr y rot, damage by insects or rodents, etc. Repair or
Ø Batter y reverse connection protection
replace those affected when necessar y.
If the batter y is reversely connected, the system will simply not operate so as to protect the
controller from being burned.
Ø Photovoltaic input side too high voltage protection
If the voltage on the photovoltaic array input side is too high, the controller will automatically cut
off photovoltaic input.
Ø Photovoltaic input side short-circuit protection
If the photovoltaic input side gets short-circuited, the controller will halt charging, and when the
short circuit issue gets cleared, charging will automatically resume.
Ø Photovoltaic input reverse-connection protection
When the photovoltaic array is reversely connected, the controller will not break down, and when
the connection problem gets solved, normal operation will resume.
u Verify that indicators function in line with device operations. Note any faults or displayed
errors and take corrective measures if necessar y.
u Check all wiring terminals for any sign of corrosion, insulation damage, overheat,
combustion/ discoloration, and tighten the terminal screws firmly.
u Check if there are any dirt, nesting insects or corrosion, and clean as required.
u If the lightening arrester has lost its efficacy, replace it with a new one timely to prevent the
controller and even other devices owned by the user from being damaged by lightening.
Warning: risk of electric shock! Before carr ying out the above checkings or operations,
always make sure all power supplies of the controller have been cut off!
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5. Product Specification Parameters
5.2 Batter y Type Default Parameters
5.1 Electric Parameters
LI Batter y
Parameter
Model
System voltage
No-load loss
Batter y voltage
Max. solar input voltage
Max. power point voltage range
Rated charging current
Rated load current
Max. capacitive load capacity
Max. photovoltaic system input power
Conversion efficiency
MPPT tracking efficiency
——
Value
——
MNMPPT60DIY
14.4V
Absorption Voltage
——
12V/24V/36V/48V Auto
Absorption restoring
Voltage
0.7 W to 1.2W
——
12.6V
9V to 70V
——
11.1V
150V (25°C), 145V (-25°C)
——
Batter y voltage +2V to 120V
——
——
60A
——
20A
——
Absorption duration time
10000uF
800W/12V; 1600W/24V; 2400W/36V; 3200W/48V
When selecting User, the batter y type is to be self-customized, and in this case, the default
system voltage parameters are consistent with those of the sealed lead-acid batter y. When
≤ 98%
modifying batter y charging and load parameters, the following rule must be followed:
＞ 99%
u Over-voltage cut-off voltage＞ Charging limit voltage ≥ Equalizing voltage ≥ Absorption
Temperature compensation factor
-3mv/°C/2V (default)
voltage ≥ Floating charging voltage ＞ Absorption recovery voltage;
Operating temperature
-35°C to +45°C
u Over-voltage cut-off voltage ＞ Over-voltage cut-off recovery voltage;
Waterproof level
Type 1 Indoor only
u Low-voltage cut-off recovery voltage ＞ Low-voltage cut-off voltage ≥ Load limit voltage;
Weight
3.6kg
Communication method
RS232 RS485
Altitude
≤ 3000m
Product dimensions
285*205*93mm
u Under-voltage warning recover y voltage ＞ Under-voltage warning voltage ≥ Load limit
voltage;
u Absorption recover y voltage ＞ Low-voltage cut-off recovery voltage
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7. Product Dimensions
6. Conversion Efficiency Curve
6.1 12V System Conversion Efficiency
20Vmp
40Vmp
60Vmp
90Vmp
110Vmp
8.58”
11.22”
Conversion efficiency（%）
MPPT 12V conversion efficiency (12V batter y)
99
98
97
96
95
20 Vmp
94
93
40 Vmp
92
91 60 Vmp
90
90 Vmp
89
88
110 Vmp
87
86
85
40
80
160
240
300
400
500
600
700
800
Output power（W）
6.37”
6.1 24V System Conversion Efficiency
O 0.184”
MPPT 24V conversion efficiency (24V batter y)
4 X O 0.39”
8.07”
7.08”
100
40Vmp
60Vmp
80Vmp
90Vmp
110Vmp
Conversion efficiency（%）
98
96
94
40 Vmp
92 60 Vmp
90 80 Vmp
88
90 Vmp
110 Vmp
86
84
82
80
40
80
160
480
800
Output power（W）
1200
1600
6.3 48V System Conversion Efficiency
MPPT 48V conversion efficiency (48V batter y)
60Vmp
70Vmp
80Vmp
90Vmp
110Vmp
Conversion efficiency（%）
99
97 60 Vmp
95
70 Vmp
80 Vmp
Technical requirements
Product dimensions：285*205*93mm
Hole positions：218*180mm
Hole diameter： 4.5
Applicable wire：diameter<11mm
93 90 Vmp
110 Vmp
91
89
87
85
160
320
640
1000
1250
1500
2000
2500
3000
Output power（W）
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MIDNITE SOLAR INC. LIMITED WARRANTY
MidNite Solar DIY MPPT controller, DIY sheet metal enclosures, DIY breaker boxes and DIY accessories
MidNite Solar Inc. warrants to the original customer that its products shall be free from defects
in materials and workmanship. This warranty will be valid for a period of TWO (2) years for all
DIY series charge controllers and ONE (1) for all DIY sheet metal enclosures, DIY breaker.
boxes and DIY accessories At its option, MidNite Solar will repair or replace at no charge any
MidNite product that proves to be defective within such warranty period. This warranty shall
not apply if the MidNite Solar product has been damaged by unreasonable use, accident,
negligence, service or modification by anyone other than MidNite Solar, or by any other causes
unrelated to materials and workmanship. The original consumer purchaser must retain
original purchase receipt for proof of purchase as a condition precedent to warranty
coverage. T o receive in-warranty service, the defective product must be received no later
than two (2) weeks after the end of the warranty period. The product must be accompanied
by proof of purchase and Return Authorization (RA) number issued by MidNite Solar.
For an RMA number contact MidNite Solar Inc., (360) 403-7207. Purchasers must prepay all
delivery costs or shipping charges to return any defective MidNite Solar product under this
warranty policy. Except for the warranty that the products are made in accordance with, the
specifications therefore supplied or agreed to by customer:
MIDNITE SOLAR MAKES NO WARRANTY EXPRESSED OR IMPLIED, AND ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH
EXCEEDS THE FOREGOING WARRANTY IS HEREBY DISCLAIMED BY MIDNITE SOLAR
AND EXCLUDED FROM ANY AGREEMENT MADE BY ACCEPTANCE OF ANY ORDER
PURSUANT TO THIS QUOTATION. MIDNITE SOLAR WILL NOT BE LIABLE FO R ANY
CONSEQUENTIAL DAMAGES, LOSS OR EXPENSE ARISING IN CONNECTION WITH THE
USE OF OR THE INABILITY TO USE ITS GOODS FOR ANY PURPOSE WHATSO EVER.
MIDNITE SOLAR’S MAXIMUM LIABILITY SHALL NOT IN ANY CASE EXCEED THE
CONTRACT PRICE FOR THE GOODS CLAIMED TO BE DEFECTIVE OR UNSUITA BLE.
Quad
Baby
Box
Big
Baby
MidNite Solar offers breaker boxes and PV combiners
in many sizes. Visit www.midnitesolar.com
Products will be considered accepted by customer unless written notice to the contrary is
given to MidNite Solar within ten (10) days of such delivery to customer. MIDNITE SOLAR is not
responsible for loss or damage to products owned by customer and located on MIDNITE
SOLAR’S premises caused by fire or other casualties beyond MIDNITE SOLAR’s control. This
warranty is in lieu of all other warranties expressed or implied.
MIDNITE SOLAR INC.
Email:
[email protected]
PH: 360-403-7207 FAX: 360-691-6862
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