KickAss KA1224MPPT20A, KA1224MPPT40A User Manual

Maximum Power Point Tracking (MPPT)

KA1224MPPT20A - KA1224MPPT40A

Solar Charge Controller

User Manual

Model

Battery voltage

Max. solar panel voltage

Charging current

Version: 1.03

The above information is subject to change without prior notice.

KA1224MPPT20A

100V(25℃)，90V(-25℃)

20A

KA1224MPPT40A

12V/24V

40A

1. PRODUCT INTRODUCTION

Ÿ This product is designed to monitor a solar panel's generated power, tracking the

highest voltage and current values in real time. This allows the charging of your
battery to its highest potential, enabling the maximum power output.

Ÿ Can be used on all types of solar panels.
Ÿ The product features an easy to read LCD display allowing you to check and adjust

parameters by using the direction keys below the screen. This also allows you to
modify your controller to best suit your system.

Ÿ With built-in diagnostics technology, the controller is able to identify faults and

display error codes for ease of troubleshooting.

1.1 Exterior Interface

①

②
③

④

⑤

⑥

⑧ ⑨

⑩

Fig. 1-1 Product appearance and interfaces

No. No.

Item

①

Charging indicator

②

Battery indicator

③

Load indicator

④

Abnormality indicator

⑤

LCD screen

⑥

Operating keys

⑦

Installation hole

⑧

Solar panel "+" interface

⑨

Solar panel "-" interface

⑩

⑪

⑫

⑬

⑭

⑮

⑦

⑪ ⑫ ⑬⑭ ⑮

Item

Battery "+" interface

Battery "-" interface

Load "+" interface

Load "-" interface

External temperature sampling interface

RJ12 communication interface

2. INSTALLING CONTROLLER

Ÿ Take care when installing lead acid batteries, always wear correct safety equipment.
Ÿ Keep terminals protected from foreign metal objects to ensure terminals don’t short.

Ÿ Make sure battery is sufficiently ventilated.
Ÿ Keep battery away from open flames.

Ÿ Make sure battery is protected from direct sunlight and rain/water intrusion.
Ÿ Loose connections or corrosion to the terminals can cause excessive heat which may

melt wiring.

Ÿ Always use insulated tools and keep hands dry when carrying out installation.
Ÿ Always follow the safety advice given by the battery manufacturer.
Ÿ Connect the controllers earth terminal to ground.

2.1 Wiring Specifications

Wiring installation must comply with with national and local electrical specifications.
The wiring specifications of the battery and loads must be selected correctly to the size of
the maximum output current.

See table below for correct wiring specifications:

Model

Rated charging

current

ML2420 20A 20A

ML2440

40A 20A

2.2 Installation and Wiring

Risk of explosion! Never install the
controller and battery together in
a sealed environment where
battery gas may accumulate.

Solar panels connected in series
can produce a high voltage.
Always disconnect battery whilst
connecting any wiring to
controller.

When installing controller, make

!

sure it is in a well ventilated area
(see fig 2.1)

Rated discharging

current

≥150 mm

≥150 mm

Fig. 2.1 Installation and heat dissipation

Battery wire

diameter (mm2)

10

5

mm

Hot air

Cold air

mm

2

2

Load wire

diameter (mm2)

2

5

mm

2

5

mm

3. PRODUCT OPERATION AND DISPLAY

CHOOSING AN INSTALLATION SITE

Keep controller away from direct sunlight or high temperatures.
This will ensure that you get the maximum efficiency from your controller.
Make sure area is well ventilated and away from any moisture.

MOUNTING THE CONTROLLER

Using the template provided, mark 4 holes on flat surface area intended for
controller. Screw into flat surface and line up mounting holes on controller and hang
controller.

BEFORE OPERATION

Make sure all connections are tight, secure and that all fuses and circuit breakers are ok.

If the LCD screen fails to turn on, remove fuse from battery and check that all
connections have been made correctly.
Once LCD screen turns on manually test that the load is switching on and off.

When controller is charging, always disconnect the load before disconnecting your
battery. This will save your controller from any possible damage.

Within 10 minutes after the controller stops charging, reversely connecting battery
will result in damage to the controller.

Never connect an inverter, fridge, or other accessory requiring consistent, reliable
power directly to the load side of the controller. Always connect your inverter and
accessories directly to your battery, fused appropriately.

3.1 LED Indicators

PV array indicator

BAT indicator

LOAD indicator

ERROR indicator

PV array indicator:

No.

①

②

③

④

⑤

⑥

Graph

BAT indicator:

Indicator state

Steady on

Slow flashing

Quick flashing

(a cycle of 2s with on and off each lasting for 1s)

(a cycle of 0.2s with on and off each lasting for 0.1s)

LOAD indicator:

Indicator state

Off

Quick flashing (a cycle of 0.2s with on and off each lasting for 0.1s)

Steady on

Indicating the controller's current charging mode.

Indicating the battery's current state.

Indicating the load'

s On/ Off and state.

Indicating whether the controller is functioning normally.

Indicator state

Steady on

Slow flashing

(a cycle of 2s with on and off each lasting for 1s)

Single flashing

(a cycle of 2s with on and off lasting respectively for

0.1s and 1.9s)

Quick flashing

(a cycle of 0.2s with on and off each lasting for 0.1s)

Double flashing

(a cycle of 2s with on for 0.1s, off for 0.1s, on again
for 0.1s, and off again for 1.7s)

Off

Battery state

Normal battery voltage

Battery over-discharged

Battery over-voltage

Battery state

Load turned off

Load overloaded/ short-circuited

Load functioning normally

Charging state

MPPT charging

Boost charging

Floating charging

Equalizing charging

Current-limited
charging

No charging

ERROR indicator:

Indicator state

Off

Steady on

Battery state

System operating normally

System malfunctioning