AIMS Solar Charge Controller User Manual
AIMS Solar Charge Controller

This device is a PWM 12/24V 30A charge controller used in solar applications. Its flush mount design is ideal for solar power systems in RV’s, boats and vehicles. Carefully read the manual before installation.

CONTROLLER FEATURES

  1. PCBA common negative design, necessary for all negative grounded solar power systems.
  2. 12/24V auto recognition. Lithium battery must be set manually set.
  3. PWM 3-phase charging: equalize – boost- float (for Flooded, AGM and GEL).
  4. Easy to use settings. User defined parameters for lithium battery. SJ Flush mount design for convenient installation.
  5. Back lit LCD display (system status, current, voltage, voltage value settings, etc).
  6. Easy to use menu buttons.
  7. SV USB port for mobile device charging.
  8. Temperature compensation for better battery maintenance in extreme environments.
  9. Multiple built in protections including solar reverse connection, battery reverse connection, battery over-discharge and over voltage.

INSTALLATION NOTES

IMPORTANT REMINDERS

  • The battery must be connected to the controller first.
  • Please note that the maximum solar (PV) input voltage is SSV open circuit voltage (OCV). Do not use solar panel(s) with working voltage (VMP) of more than 40V (refer to solar (PV) module specs).
  • Note the maximum solar (PV) input power is 450W/12V or 900W/24V. Do not exceed the rated power.
  • Do not change any settings in the “LI” battery mode if you are not using a lithium battery.
  • In the LI battery mode, you must set the battery system voltage (12 or 24V) manually. SET THE VOLTAGE FIRST, then set the charging voltage.
  • If you would like to check the information in the “Li” battery mode settings, but not alter any settings, remember to set the correct voltage set (12 or 24V) before exiting from the settings.

HARDWARE SUGGESTIONS

  • For maximum PWM charge efficiency, we suggest using solar panels with an output of 18V (VMP) for a 12V battery system, and 36V (VMP) panel for 24V battery systems. You can still use panels with lower voltages but it may lead to a slightly lower charge efficiency. In all cases the solar (PV) input voltage (VMP) must be higher than the battery system voltage.
  • For added safety and protection we suggest using a DC breaker or fuse between both the solar panel and the controller, as well as between the controller and the battery.

CONTROLLER LAYOUT

CONTROLLER LAYOUT

1

LCD Display

2

USB Port
3

Set/Page button

4

Parameter set button
5

Solar input wiring terminal

6

Battery wiring terminal
7

Installation holes

WIRING SEQUENCES

  • First: Connect the battery first.
  • Last: Connect the solar panel second, use 10AWG PV wire.

WIRING SEQUENCES

LCD DISPLAY

Display Overview

You can check system information using the LCD display, including PV input voltage, charge current, battery voltage, battery capacity, controller temperature, error code and battery setting pages.

Display Overview

Solar (PV), Battery & Charge Indications

ICON ITEM STATUS INDICATION REMARK

PV Indication

PV Indication ON PV volt higher than light control volt
OFF PV volt lower than light control volt
Slow flash ON Charging
Fast flash ON PV over voltage

Battery Indication

Battery Indication ON Battery is ok
OFF Battery is not ok
Fast flash ON Battery over discharged

Charge  Indication

Charge Indication Flowing Charging
No flow No charge

OPERATION & SETTINGS PAGES

Button Setting Info

There are 2 buttons on the controller for operations and settings. Check the below diagram for setting details:

BUTTON SETTING STATUS PRESS FUNCTION

Button

In Setting Press & hold Enter page
Quickly press Enter next page for settings
Not in Setting Press & hold Enter page for settings
Quickly press Enter next page

Button

In Setting Press & hold No function
Quickly press To adjust parameter
Not in Setting Press & hold No function
Quickly press No function

Remarks: “In Setting” means the user is in process of setting parameters.

Information Pages:

Information Pages

BATTERY TYPE & PARAMETER SETTINGS

Battery Type Setting

Battery Type Setting

DISPLAY BATTERY TYPE REMARKS
FLD Flooded Battery Battery system voltage auto recognition; parameters set.
SEL Sealed/AGM Battery
GEL Gel Battery
LI Lithium Battery System voltage, charge/ discharge parameters, adjustable.

Battery System Voltage Setting (only for lithium battery, set manually)

Battery System Voltage Setting

Charge Voltage Setting (only for lithium battery)

Charge Voltage Setting

CONTROLLER ERROR INFO & RECOVERY

The controller may display an error code on the LCD screen if there is an issue in the system. If this happens please refer to the below diagram:

CODE ERROR ANALYSIS SOLUTION (Recovery)
E00 No Error
E01 Over-discharged The battery has been discharged below normal ranges. Recovered once battery voltage returns to normal range. An alternate charge source may be required depending on depth of discharge
E02 Over voltage The battery voltage exceeds the normal range. Recovered after the battery voltage returns to the normal range. It is possible that the battery may be defective.
E06 Device over heating Charge shuts down due to high temperature inside the controller Recovered after temperature returns to the normal range.
E08 Input over load The solar (PV) input power exceeds the rated value Recovered after the solar (PV) input power is within the controller ratings.
E10 PV over voltage The solar (PV) input voltage is too high. Recovered after the solar (PV) input voltage is within the controller ratings.
E13 PV anti-connection Solar (PV) module +- polarity reverse-connection Correct the + and – solar connection.
E14 Battery anti-connection Battery+- polarity reverse-connection Correct the + and – battery connection.

CONTROLLER SPECIFICATIONS

ITEM PARAMETERS
Model No. SCC30AFM
System Voltage 12V/24V
No-load Loss 8ma (12V) , 12ma (24V)
Max PV Input Voltage < 55Voc
Rated Change Current 30A
Max PV Input Power 450W/12V; 900W/24V
Battery Type Selection FLD SEL GEL LI
Equalize Charge Voltage 14.8V (12V)
29.6V (24V)
/ 14.6V (12V) / 29.2V (24V)
Boost Charge Voltage 14.6V (12V) 29.2V (24V) / 14.4V (12V) / 28.8V (24V) 14.2V (12V) / 28.4V (24V) 14.2V (12V) / 28.2V (24V) adjustable
Float Charge Voltage 13.8V (12V)/ 27.6V (24V)
Boost Charge Recovery Volt 13.2V (12V) / 26.4V (24V)
Over Discharge Recovery Volt. 12.6V (12V) / 252V (24V) 11.0V (12V) /
21.0V (24V ) ‘auto adjusted
to over-discharge volt
Over Discharge Voltage 11.1V(12V) / 22.2V(24V) 10.0V (12V) / 20.0V (24V) adjustable
Light Control Voltage 5V(12V system) , 1OV(24V system)
Light Control Delay Time lOs
Operation Temperature -35°C — +45°C
IP Protection IP32
Net Weight 1 lb
Controller Size 6.67″ x 5.12″ x 184″

 

Documents / Resources

AIMS Solar Charge Controller [pdf] User Manual
AIMS, Solar, Charge, Controller, PWM 12, 24V, 30A, charge controller

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