WRND ProSeries MPPT User manual

WRND MPPT
ProSeries
USER MANUAL

2

TABLE OF CONTENT
INSTALLATION..........................................................................................3
CHARGING STAGES.................................................................................5
START-UP SCREEN....................................................................................6
HOME SCREEN..........................................................................................7
MAIN MENU...............................................................................................8
LOG HISTORY............................................................................................9
STATISTICS.................................................................................................9
SETTINGS..................................................................................................11
SETTING: FLOAT CHARGING...............................................................11
SETTING: BOOST CHARGING..............................................................12
SETTING: EQUALI E CHARGING........................................................13
CHANGE CODE........................................................................................14
WARRANTY..............................................................................................17
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INSTALLATION
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Use the four mounting holes to fix the MPPT in an upright positon allowing for
convection cooling across the fins. Also, be sure not to block any of the fins of
vents of the MPPT. An internal temperature sensor will protect the MPPT from
overheating, but performance may be limited if the MPPT is not allowed to vent to
the surrounding area.
isconnect any form of charger or load from the battery and allow it to settle for 2
minutes. Use a multi meter to verify that the battery are near its nominal voltage.
The MPPT will automatically select the nominal system voltage at start-up as
ether 12V or 24V for the 12/24V product range or 12V, 24V, 36V or 48V for the
12/24/36/48V range of products. The MPPT selects the nominal voltage according
to the following table:
Nominal 12V system if battery is less than 18.0V
Nominal 24V system if battery is between 18.0V and 31.4V
Nominal 36V system if battery is between 31.5V and 41.9V
Nominal 48V system if battery is more than 42.0V
Connect the battery to the terminals marked ‘BATTERY’ on the MPPT. Positive (+)
to the red terminal marked with + and the negative (-) to the black terminal
marked with - .Be sure to use the correct size lugs and supplied washers. Also
tighten the terminals properly to prevent damage or a fire hazard due to loose
connection. The MPPT should now power up.
WARNING! DO NOT REVERSE THE POLARITIES!
Connect the panel to the terminals marked ‘PANEL’ on the MPPT. Positive (+) to
the red terminal marked with + and the negative (-) to the black terminal marked
with - . Be sure to use the correct size lugs and supplied washers. Also tighten the
terminals properly to prevent damage or a fire hazard due to loose connection.
WARNING! DO NOT REVERSE THE POLARITIES!
If there is input from the panel(s) the MPPT will start tracking. Note: This may take
a minuut or two.
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CHARGING STAGES
The WRN MPPT charge controllers employ three basic charging stages:
Stage 1 – Bulk charging (‘PPT’ or ‘PPL’ indicated on LC )
Stage 2 – Boost or Equalize charging (‘Bst’ or ‘Equ’ indicated on LC )
Stage 3 – Float charging (‘Flt’ indicated on LC )
NOTE: The unit will often jump back and forth between Stage 1 and Stage 2/3.
This happens during the change over time between charging stages, when
variable loads are connected to the battery bank or on cloudy days (variable input
from the solar panels)
Stage 1 (bulk charge) is entered as soon as the sun rises and provides sufficient
energy to the solar panels to start charging. uring this stage the MPPT function
is used to track and supply the maximum available current to the battery. About
80% of the total charge is replaced during this stage.
Stage 2 (Boost or equalize charging) commences when the battery voltage
reaches preset values (see ‘SETTING’ section in this document). The unit will limit
the current to the battery in order to maintain a constant battery voltage during
this stage.
Stage 3 (Float charging) is entered after a preset boost/equalize time or current is
reached and the battery is considered to be almost fully charged. This stage is to
maintain the batteries in a charged state without overstressing them.
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START-UP SCREEN
When power is connected to the unit it should briefly display a start-
up screen similar to the one above. The model number in this
instance is WMP2404A which indicates this unit is a 12/24V, 40A
unit. This code will be different for other models according to the
following table:
WMP2404A – 12/24V, 40A
WMP2406A – 12/24V, 60A
WMP2408A – 12/24V, 80A
WMP2410A – 12/24V, 100A
WMP2412A – 12/24V, 120A
WMP4803A – 12/24/36/48V, 30A
WMP4806A – 12/24/36/48V, 60A
WMP4809A – 12/24/36/48V, 90A
WMP4812A – 12/24/36/48V, 120A
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HOME SCREEN
1) PANEL VOLTAGE (Shown above as ‘PV: 33.3V’): Is the voltage of the PV
panel as measured at the PV terminals of the MPPT. This reading will
display ‘---‘ if the voltage is less than the battery voltage.
2) POWER (Shown above as ‘245W’): isplays the power (in Watt) being
converted from the panels into the batteries and is calculated as the
battery voltage x the battery current.
3) SYSTEM SELECT (Shown above as ‘12’): Indicates the nominal voltage
of the battery or battery bank connected to the MPPT. The MPPT auto
selects the system voltage at start-up.
4) BATTERY VOLTAGE (Shown above as ‘BAT: 13.0V’): Indicates the
voltage of the battery as measured at the battery terminals of the MPPT.
5) BATTERY CURRENT (Shown above as ’18.9A’): isplays the charging
current supplied to the battery under charging conditions.
6) TIMER (Shown above as ‘0:00’41’): Indicate the amount of time the
MPPT received power from the panels during a particular day. If no power
is received the timer will stop running until the power increases again.
This allows the user to see the exact time of sun exposure during a given
day. If no power is received for 30 consecutive minutes the ' rk' will
appear at the state indicator to indicate ' ay end' and all value will be
reset on the next detection of input voltage (start of next day).
7) KILOWATT HOUR COUNTER (Shown above as ‘0.002kWh’): isplay the
amount of kWh throughput for the current day.
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8) ‘Menu’: Indicates the function of the button below it and will enter the
main menu if pressed.
9) ‘Stats’: Is a short cut key to the STATISTICS menu.
10) STATE IN ICATORS (Shown above as ‘PPL’):
Off – No input voltage, power circuit in off state
PPT – Power Point Tracking (Searching for maximum power point)
PPL – Power Point Locked in
Bst – Boost charging
Flt – Float charging
Equ – Equalize charging
IMx – Preset maximum charging current reached.
OvL – Over voltage / current condition (OverLoad), wait 1 minute
rk – Indicates the day end / solar panels dark
Low – Battery voltage to low for charging (power circuit turns off)
Tmx – Over temperature (allow unit to cool down, check ventilation)
MAIN MENU
Press the ‘Menu’ key on the home screen to enter this menu. This key will now
read ‘Next’. Press ‘Next’ to go to the next item down the list or until the menu exits
back to the main screen.
Press the ‘Enter’ key to select an item on the menu.
Press the ‘Exit’ key to return to the main screen.
If no key is pressed for 60 seconds the MPPT will automatically return to the
home screen. This applies to all menus.
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LOG HISTORY
Shown below: the run time (‘0h04’), maximum solar panel power (‘PV 248Wmx’),
maximum battery voltage (‘Bat 13.1Vmx’), minimum battery voltage (’12.2Vmin’),
kWh (‘0.011kWh’) and ampere hour charge (‘0.9Ah’) for the current day is
automatically saved before the start of a new day and stored to the top of the log
history. The log contains entries for the last 31 consecutive days. The information
in the log is retained even if the MPPT looses power.
To recall an entry go to: MENU > LOG HISTORY
Use the ‘Menu’ key to return to the menu.
Use the ‘<<<’ key to recall newer entries.
Use the ‘>>>’ key to recall older entries.
Use the ‘Exit’ key to return to the home screen.
STATISTICS
There are two statistics screens that can be accessed by pressing the ‘Stats’ key
on the home screen or by going to: MENU > STATISTICS.
The first screen gives the maximum solar panel power (shown below as ‘PV
248Wmx’), maximum and minimum battery voltages (shown below as ’Bat
13.1Vmx 12.9Vmin’), maximum current into the battery (shown below as
’19.0Amx’) and the ampere hour charge (shown below as ‘0.7Ah’) for the current
day.
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