Cutting Edge 100A MPPT User manual

Rev 20200515 Page 1
The warnings, precauons, and instrucons discussed in these instrucon guidelines
cannot cover all possible condions and situaons that may occur. It must be under-
stood by the operator that common sense and cauon are factors which cannot be
built into this product, but must be supplied by the operator. While Cung Edge
Power is proud to be an American company dedicated to producing a high quality
product, we are not responsible for any property or personal damage to you or your
device(s) due to use/misuse of this product. Always use good judgement and never
USER MANUAL
100A MPPT CHARGE CONTROLLER

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COMPONENTS:
Temperature
sensor
Display screen
USB output
Solar panel input
connection
Battery
connection
Load connection

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SPECIFICATIONS:
BATTERY VOLTAGE 12V OR 24V
MAXIMUM CHARGE CURRENT 100A
MAXIMUM SOLAR INPUT
23V VOC FOR CHARGING 12V BATTERY/BATTERIES
46V VOC FOR CHARGING 24V BATTERIES
12V BATTERY/BATTERIES 24V BATTERIES
EQUALIZATION 14.4V 28.8V
FLOAT CHARGE 13.7V DEFAULT, ADJUSTABLE 27.4V DEFAULT, ADJUSTABLE
DISCHARGE CUT OFF 10.7V DEFAULT, ADJUSTABLE 21.4V DEFAULT, ADJUSTABLE
DISCHARGE RECONNECT 12.6V DEFAULT, ADJUSTABLE 25.2V DEFAULT, ADJUSTABLE
LOAD “ON”, AKA NIGHT MODE 8V SOLAR INPUT 16V SOLAR INPUT
LOAD “OFF”, AKA DAY MODE 8V SOLAR INPUT 16V SOLAR INPUT
USB OUTPUT 5V / 2.5A MAX
POWER CONSUMPTION <10mA
OPERATING TEMPERATURE WITH-
OUT FORCED CONVECTION 50°C
SIZE 6-7/16” L X 3-3/4” W X 1-11/16” H

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SAFETY PRECAUTIONS:
1. Make sure your baery has enough voltage to register on the charge controller (8V DC minimum).
2. Make sure you have the right size wire. Wire sizing typically includes 2 consideraons:
A. NEC minimum wire size to avoid overheang the wire, based on insulaon material.
The following is an excerpt from the Naonal Electrical Code . It can be used as a general guideline for
wire sizes. Take note of the materials listed (copper/aluminum) and temperature rang. Many of Cung
Edge Power’s wire is not included in this table because we use very special, high temperature/current rat-
ed 200°C silicone insulated nned copper wire.

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B. Voltage drop, to avoid low voltage / high current issues.
Voltage drop is a phenomenon that can aect low voltage (under 60V) systems quite a bit. We
recommend checking with the voltage drop calculator from calculator.net found here. One of the biggest
problems with having a voltage drop too low, is that it proporonally increases the current of the system,
which can have a tendency to overheat wiring or components. You can read more about this on our blog.
As a general rule of thumb, 2% voltage drop is considered good, and 3% voltage drop is considered
acceptable.
When in doubt, bigger wire is beer.
Note: the largest praccal size wire that can be used in this charge controller’s terminals is 10AWG.
10AWG silicone insulated nned copper wire is rated for 140.6A maximum.
3. This charge controller is suitable for charging lead acid 13.7V nominal baeries (deep cycle, AGM, Gel,
SLA) as well as Lithium Iron Phosphate (LiFePO4) 4S 12.8V nominal baeries.
It can be used to charge Nickel Oxide based lithium baeries, but it isn't recommended because you
won’t be able to use the full voltage range of these baeries.
How does it work?
MPPT is a fascinang technology. MPPT stands for Maximum power point tracking. Basically, it is a
charging control technique that determines the point at which a solar panel’s maximum voltage and
current (thus, power) can be used to charge your baery. A visual graph of a typical solar panel is shown
below. The line which follows the “knee” of the curves indicates the maximum power point. As you can
see, the maximum power point will change depending on the amount of sunlight. The ability of this
charge controller to adapt and harvest the maximum amount of power with any given amount of sunlight
is what makes it almost 99% ecient. You can read more about MPPT here.
DON’T BELIEVE US??
Perform your own precise tests using our Smart Tech
Power Meter. Designed specically for wind and solar,
our Smart Tech Power Meter is perfect for all of your
tesng needs. Easy pairing through your standard WiFi
router or phone's hotspot, you can view the measured
voltage, current (amps) and the power output (Was).
More info here

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CONNECTIONS:
1. Always connect the baery rst, then solar panels. This is to prevent a voltage surge or spike from
damaging the sensive electronics in the charge controller.
2. Connect the solar panels second.
23V maximum solar panel Open Circuit Voltage (VOC) input for charging 12V baery/baeries.
46V DC maximum solar panel Open Circuit Voltage input (VOC) for charging 24V baeries.
See “Specicaons” for more details.
3. If applicable, connect “load” last.
4. Reversing the polarity will result in a damaged charge controller and will void the warranty.
Menu buon: short press to scroll through sengs. Long press to modify sengs.
Up buon: Short and long press does nothing from home screen. Use to adjust sengs
aer long pressing the menu buon.
BUTTON GUIDE:
Down buon: Short press turns on/o the “load” output. Use to adjust sengs aer long
pressing the menu buon.
Long press at home screen to engage or disengage the “load” funcon.
WHAT THE HECK IS THE “LOAD” OUTPUT
FUNCTION?
The load funcon is typically used for lighng applicaons, hence the light bulb icon. It can commonly be
set to turn on a load output aer dusk (when the charge controller detects 8V or less, it assumes it’s night
me). The me aspect (24h, 1-15h, 0h) is the me the load output will remain engaged. Aer this me is
elapsed, the load output will be disengaged.
Important: The load voltage sengs and me sengs must be sased in order for the load output to
engage.

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Home Screen:
Default display which shows the baery voltage, if the solar panels are charging,
and if the load output is engaged.
From the home screen, short press “menu” to view the status of all parameters.
When you get to a seng you want to change, long press “menu” for 3 seconds to enter “edit mode”. Aer
the seng is adjusted, to save: short press “menu” or just wait for the screen to me out.
PV OFF:
The voltage at which solar charging will be disconnected. PV OFF should be the
maximum voltage you want your baery/baeries to be charged. (Typ.
Note: this MUST be modied for LiFePO4 baeries!! Refer to your baery speci-
caons!
LOAD ON (Voltage):
The voltage at which the load output will be engaged (if allowed by me seng).
LOAD OFF:
The voltage at which the load output will be disconnected. This is a protecve
seng to prevent the baery from overdischarging.
LOAD ON (Time):
The me at which the load output can be engaged. 24h means the load will al-
ways be on as long as the voltage doesn't drop below “LOAD OFF”. 1-15h means
the load output will be engaged for this many hours aer the charge controller no
longer detects the solar panel (sunset). 0h acvates the “dusk to dawn” seng;
load will be set to engage at dusk and disengage at dawn.
b1, b2, b3, b4 These are preset sengs and can be disregarded.
The other displays are status indicators/parameters.
SCREEN GUIDE:
Sengs that are adjusted will be automacally saved, even if power is removed.

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PROBLEM CAUSE SOLUTION
Charge icon is not on when
it’s sunny
Solar panel polarity (+/-) reversed
Solar panel not connected
Solar panel defecve
Wire(s) cut or disconnected
Use a mulmeter to verify connuity and
voltage output from solar panel(s)
Load icon o Mode seng wrong
Baery low
Refer to load sengs earlier in this docu-
ment
Load icon ashing slowly Overload
Short circuit on load output
Reduce load output or correct short circuit.
Try again aer 1 minute.
No display on screen Baery voltage too low or baery
polarity (+/-) incorrect
Check baery and / or connecon
Odd characters on screen /
incorrect voltage displayed
(veried with mulmeter)
Defecve charge controller Contact Support@CungEdgePower.com
TROUBLESHOOTING: