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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These value can be reset at any time but note that this information will be
permanently lost.
The second screen gives the total days the MPPT has completed along with the
total kWh for those days. These values can not be reset and will be retained even
if the MPPT looses power. Also indicated on this screen is the battery and system
temperature. If the are no battery temperature sensor installed this reading will be
'---'
Use ‘Menu’ to return to the menu.
Press ‘Reset’ key to reset these values.
Use the ‘>>>’ key to go to the second statistics screen.
Use ‘Exit’ to return to the home screen.
Use the ‘<<<’ key to go to the second statistics screen.
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SETTINGS
Various operating parameters may be set by the user is order to achieve optimum
system performance. These parameters are contained in the settings menu. To
access this menu go to: MENU > SETTINGS.
The user will now be prompted to enter a 5 digit code the def ult code is 00000
(all zeros). If the code was changed by the user please use that code. (To change
the code see section: CHANGE CO E below.)
Also indicated, as reference, is the software version in use (shown below as ‘3v3’)
Press the ‘>>>’ key to go to the next digit until the last digit is reached. Then press
it one more time to submit the code. If the code is correct the settings screen will
appear as seen below. If not the user will be prompted to enter the code again.
Press the ‘<<<’ key to go to the previous digit.
Press the ‘Up’ key to change the digit value.
Use ‘Exit’ to return to the home screen.
SETTING: FLOAT CHARGING
The float voltage setting (shown below as ‘Float volt 13.9V’) is the voltage limit
used during the float charging stage (see section: CHARGING STAGES) and may
be set by the user according to their particular battery requirements (please
consult the battery user manual or contact the battery manufacturer).
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The current limit is the maximum charging current the unit will supply to the
battery. This setting should be set according to the battery connected. Refer to the
battery’s manual or contact the supplier for this value if necessary. If this limit is
reached an ‘IMx’ will be displayed at the state indicator on the home screen.
At this limit the battery will decease the current in order to maintain this voltage
level. If the battery is below this limit the battery will be charged at the maximum
possible current. The state indicator will display ‘Flt’ to indicate this limit has been
reached.
The battery temperature limit protects the battery from overheating due to
charging. In order for this to work a optional battery temperature sensor needs to
be installed. It is only necessary to install this sensor in certain instances. For
more information please contact WRN .
Press the NEXT key to select the menu function to change.
Press the + key to increase the value.
Press the – key to decrease the value.
Press ‘Exit’ to return to the home screen.
SETTING: BOOST CHARGING
In order to fully charge the battery the charge voltage needs to be sufficient.
However, keeping the charge voltage unnecessarily high could cause gassing to
occur. Once the batteries are charged it is best to only maintain them at a float
voltage (see previous section).
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The boost charging setting determines the parameters used to fully charge the
battery on a daily basis. Boost charging will commence once the battery voltage
reaches the limit set below as ‘Boost volt 14.4V’. The unit will maintain this
voltage for a given time (shown below as ‘Boost for 2h00’) or until the minimum
charging current (shown below as ‘BstEqu end at 1.0A’) is reached. NOTE: This
charging current limit is also used for equalize charging (see next section). When
the timer runs out or the minimum charging current is reached the unit will revert
to float charging (see previous section).
Press the ‘Next’ key to select the menu function to change.
Press the ‘+’ key to increase the value.
Press the ‘–‘ key to decrease the value.
Press ‘Exit’ to return to the home screen.
SETTING: EQUALIZE CHARGING
In order to extend the life of the batteries it is necessary to equalize the cells
inside it periodically. This is done by increasing the battery voltage beyond the
normal charging conditions for a limited time. Refer to the battery manual or
contact the battery supplier for the specific settings for the connected battery. To
cancel this function set the equalize voltage to the same value as the boost limit
referred to in the BOOST CHARGING SETTINGS section above.
Equalization will not be done every day. This is determined by the day interval
setting (shown below as ‘Equ every 7 days’). On the equalize day the battery
charging limit will be increased to the equalize voltage (shown below as ‘Equalize
to 14.7V’). Once this voltage is reached a count down timer is started.
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The amount of time the unit charges in equalize mode is defined and shown
below as ‘Equalize for 1h00’). When the count down is done the equalization
routine is complete and MPPT will revert to using the boost or float charging limit.
Press the ‘Next’ key to select the menu function to change.
Press the ‘+’ key to increase the value.
Press the ‘–‘ key to decrease the value.
Press ‘Exit’ to return to the home screen.
CHANGE CODE
To change the lock code go to: MENU > SETTINGS > CHANGE LOCK CO E
and press the ‘Enter’ key.
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The user will now be prompted to enter the new 5 digit code.
Press the UP key to change the digit value.
Press the >>> key to move to the next value.
Press the <<< key to move to the previous value.
Once the user has entered the new code press the >>> key to until prompted:
Press ‘Yes’ to accept and save the new code.
Press ‘No’ to go back to the change code lock screen.
Press ‘Exit’ to return to the home screen with out changing the code.
NOTE: Once the code is ch nged the previous code will no longer work. Be
sure to record the new code nd keep it s fe for future reference. If the new
code is lost the MPPT will h ve to be sent b ck to WRND to reset – ll
inform tion will be lost. This service nd ll costs involved will be for the
ccount of the user.
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Thank you for your purchase
Enjoy the product
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WARRANTY
Two Ye r Limited W rr nty
WRN Manufacturing cc (“WRN ”) provides a two-year (2) limited warranty
(“Warranty”) against defects in materials and workmanship for its ProSeries MPPT
Charge Controller (“Product”). The term of this Warranty begins on the Product(s)
initial purchase date, or the date of receipt of the Product(s) by the end user,
whichever is later. This must be indicated on the invoice, bill of sale, and/or
warranty registration submitted to WRN . This Warranty applies to the original
WRN Product purchaser, and is transferable only if the Product remains
installed in the original use location. The warranty does not apply to any Product
or Product part that has been modified or damaged by
the following:
Installation or Removal; 
Alteration or isassembly; 
Normal Wear and Tear; 
Accident or Abuse; 
Corrosion; 
Lightning; 
Repair or service provided by an unauthorized repair facility; 
Operation or installation contrary to manufacturer product instructions; 
Fire, Floods or Acts of God; 
Shipping or Transportation; 
Incidental or consequential damage caused by other components of the power
system;
Any product whose serial number has been altered, defaced or removed; 
Any other event not foreseeable by WRN . 
WRN ’s liability for any defective Product, or any Product part, shall be limited to
the repair or replacement of the Product, at WRN ’s discretion. WRN does not
warrant or guarantee workmanship performed by any person or firm installing its
Products. This Warranty does not cover the costs of installation, removal, shipping
(except as described below), or reinstallation of Products or parts of Products.
THIS LIMITE WARRANTY IS THE EXCLUSIVE WARRANTY APPLICABLE TO
WRN PRO UCTS. WRN EXPRESSLY ISCLAIMS ANY OTHER EXPRESS
OR IMPLIE WARRANTIES OF ITS PRO UCTS, INCLU ING BUT NOT
LIMITE TO ANY IMPLIE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. WRN ALSO EXPRESSLY LIMITS
ITS LIABILITY IN THE EVENT OF A PRO UCT EFECT TO REPAIR OR
REPLACEMENT IN ACCOR ANCE WITH THE TERMS OF THIS LIMITE
WARRANTY AN EXCLU ES ALL LIABILITY FOR INCI ENTAL OR
CONSEQUENTIAL AMAGES, INCLU ING WITHOUT LIMITATION ANY
LIABILITY FOR PRO UCTS NOT BEING AVAILABLE FOR USE OR LOST
REVENUES OR PROFITS, EVEN IF IT IS MA E AWARE OF SUCH POTENTIAL
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AMAGES. IF YOU ARE A CONSUMER THAT PURCHASE THIS PRO UCT
IN A MEMBER STATE OF THE EUROPEAN UNION, YOU MAY HAVE
A ITIONAL STATUTORY RIGHTS UN ER IRECTIVE 1999/44/EC. THESE
RIGHTS MAY VARY FROM EU MEMBER STATE TO EU MEMBER STATE.
SOME STATES (OR JURIS ICTIONS) MAY NOT ALLOW THE EXCLUSION OR
LIMITATION OF WARRANTIES OR AMAGES, SO THE ABOVE EXCLUSIONS
OR LIMITATIONS MAY NOT APPLY TO YOU.
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