Installation and Operating Instructions
Solar System Controller
ISC3022
ABOUT THIS MANUAL
These operating instructions come with the product and should be kept with it as a reference to all user’s
of the product.
Read these operating instructions carefully before use,
Keep them over the entire life of the product,
And pass then on to any future owner or user of this product.
This manual describes the installation, function, operation and maintenance of the solar system
controller ISC3022.
These operating instructions are intended for end customers. A technical expert must be consulted in
cases of uncertainty.
SAFETY
1. The solar controller may only be used in PV systems for charging Lead-Acid type batteries. This
includes: SLA, VRLA, Lead-Calcium and AGM.
Note; User’s should always refer to battery manufacturer/supplier’s recommended values for
battery charging settings and float voltage setting.
2. No energy source other than a solar panel (PV) may be connected to the solar charge controller.
3. Do not connect any defective or damaged measuring equipment.
4. Follow the general and national safety and accident prevention regulation.
5. Never alter or remove the factory plates and identification labels.
6. Keep children away from PV & Battery systems.
7. Never open the device. (No user serviceable parts inside)
8. One set solar module can connect with one controller only.
9. Never touch bare cables.
OTHER RISKS
Danger of fire and explosion
Do not use the solar charge controller in dusty environments, in the vicinity of solvents or
where inflammable gases and vapors can occur.
No open fires, flames or sparks in the vicinity of the batteries.
Ensure that the room is adequately ventilated.
Check the charging process regularly.
Follow the charging instructions of the battery manufacturer.
Battery acid
Acid splashes on skin or clothing should be immediately treated with soap suds and rinsed
with plenty of water.
If acid splashes into the eyes, immediately rinse with plenty of water. Seek medical advice.
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Caution
Users should seek advice if any of the following situations occur:
The solar charge controller does not appear to function at all.
The solar charge controller or connected cables are visibly damaged.
Emission of smoke or fluid penetration.
When parts are loose.
If any of these occur, immediately disconnect the solar charge controller from the solar panels
and battery.
Function
This solar system controller is designed to
Monitor the state of charge of the battery;
Controls the charging process,
Control the connection/disconnection of loads,
Make sure Solar system works at proper condition.
Features
Load Terminal switches Positive side.
Manual load switch with automatic re-start.
OPERATING THE CONTROLLER
The display shows a variety of system data by symbols and digits. Both buttons control all settings
and display windows.
1. Display and operation elements
LCD display for controller
information and messages.
Manual load switch, or
confirmation button in program
mode (Enter button)
Button for switching display
windows or calling up the
settings (Menu button)
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2. Display window
Change the display windows with the “Menu” button; (e.g. for 12V battery)
1. The default window will show like below, battery voltage/capacity
volume of the battery.
2.
Press “menu” button once to check charging current.
3. Press” menu” button again to display the load current.
4. When the charging current or output current is less than 0.5Amp, the LCD will always show Min A.
When there is no current, it will show 0 Amp.
CHARGING CURRENT (<0.5A)
OUTPUT CURRENT (<0.5A)
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5. If solar module cannot provide current or the current is less than 1Amp for 5 minutes, the controller will
switch to Night mode and display
in the lower right hand corner.
6. When the unit is in the default display mode, Pressing the ‘enter’ button will turn the load ON or OFF
manually. The
arrow/lamp symbol will be displayed when the load terminal is ON.
FEATURES
1. PWM Charge control
Depending on the actual battery level, various charging procedures, float charging and boost
charging are automatically performed. The final charging voltage (Float) is also temperature
compensated.
2. Deep discharging protection
If the battery falls below a specified voltage (11.0V/22V), the load output is disconnected preventing
excessive discharge of the battery. Once the voltage increases to 12.0V/24V the load will be
automatically re-connected. The set points of the deep discharging protection are predefined and
cannot be reset.
3. Temperature Compensation
ISC3022 has an internal ambient temperature sensor that compensates during the float mode.
INSTALLATION
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Install the controller in a ventilated area away from flammable materials and gases.
The surface should be solid, even, dry and nonflammable.
The battery to controller cable should be as short as possible (1-2m) and be of a suitable diameter
to minimize voltage loss.
Do not assemble outdoor, the unit should be installed in the way to be protected against humidity,
dripping, rainwater as well as direct and indirect heat (sunlight).
To ensure the air circulation for cooling an area of 15cm on each side of the unit must be kept free.
The LCD display should be protected against UV rays (e.g. sunlight). Long time exposure to UV
rays can permanently discolor the LCD.
The solar charge controller may only be connected to the local loads and the battery by trained
personnel and in accordance with any applicable regulations.
Follow the installation and operating instructions for all components of the PV system.
Ensure that no cables are damaged.
Ensure that polarity of Solar panel/battery/load is correct and use only insulated tools.
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WARNING
ISC3022 can work with input voltage up to 45 Vdc maximum; when installing at this voltage, particularly
with regard to module open circuit voltage (Voc), the entire solar energy system must be installed with
protection class II. Cover solar modules during installation and use only insulated tools.
CONNECTING / DIS-CONECTING SYSTEM SEQUENCE
Connect the wires in the sequence from 1 to 6 according the above diagram; when
Disconnect the wires in the REVERSE sequence from 6 to 1 according the above diagram.
Use with 12V or 24V battery bank, (controller will detect voltage of battery automatically).
Never exceed the nominal ratings (see below technical data for reference).
Suggested cable length, 10m solar panel connection cable/2m battery connection cable/5m load
connection cable.
TECHNICAL INFORMATION
Max. Input Current
30A DC
Max. Input Voltage (Voc)
45V DC
Max. Load Current
30A DC
Bulk Voltage
14.4 / 28.8 V DC ± 2%
Float Voltage (Temp Compensated)
13.5 – 14.4 / 27.0 – 28.8V DC± 2%
Low Voltage Disconnect
11.0 / 22.0V DC ± 2%
Auto Reconnect Voltage
12.0 / 24.0V DC ± 2%
Output Voltage
12 / 24V DC
Typical Idle Consumption
<20 mA DC
Operating temperature
-20 °C/ + 50 °C
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CHARGING CURVE
Bulk: This is the first stage (Constant Current) where the battery is in a low charge state. During this
stage the controller delivers all of the available solar power to the Battery system.
Float (Pulse mode, Maintenance): At the end of bulk stage, typically when the battery reaches 14.4
Volts, a maintenance mode starts where the battery voltage can float between a high and low value fixed
by the controller. These values are temperature compensated in order to keep the battery at 100% charge
stage in any condition.
PROTECTION FEATURES
Overcharge protection
Deep discharge protection
Battery under-voltage protection
Solar panel reverse current protection
The following installation faults do not destroy the controller. After correcting the fault, the
device will continue to operate correctly:
Overcharge protection
Deep discharge protection
Reverse polarity protection of load, panel and battery
Automatic electronic fuse
Short circuit protection of load and panel
Over voltage protection at panel input
Open circuit protection without battery
Reverse current protection at night
Overload protection
Battery over voltage shutdown
GROUNDING
Grounding ISC3022 is not technically required when installing a stand alone solar system. However, if
required, Common grounding of the negative Battery and Load control output is OK (for negative
earth electrical systems such as a caravan or motor-home).
Note: ISC3022 can ground the negative only, and PV array Output should NOT be grounded.
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MAINTENANCE
The controller is maintenance-free. We strong suggest that all components of the PV system must
be checked at least annually,
Ensure adequate ventilation of the unit
Check the cable strain relief
Check that all cable connections are secure
Tighten screws if necessary
Terminal corrosion
ERROR MESSAGES
Caution! Please do not open the controller or attempt to replace components when troubleshooting.
Improper maintenance can be hazardous to the user and the system.
If the controller detects errors or unauthorized operating states, it shows error codes on the display.
Error codes can generally be differentiated, whether there is a temporary malfunction, e.g. regulator
overload or a more serious system error that can be remedied by appropriate external measures.
Since not all errors can be simultaneously displayed, the error with the highest error number (priority) is
displayed. If several errors are present, the second error code is displayed after remedying the more
significant error.
The following meaning is assigned to the different error codes:
1.
Meaning: Battery reverse polarity warning
Remedy: Reconnect battery correctly.
2.
Meaning: Battery Voltage (Too high or too low)
Remedy: Check battery voltage it might be too low or too high, possible recharge battery
manually. If battery can’t be recharged, Replace battery & re-check.
3.
Meaning: Module current too high.
Remedy: Reduce the input current (module power) to <30Amps.
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4.
Meaning: Over current at the load output.
Remedy:
1) Reduce load current to <30Amps..
2) If reducing load current does not work; Press “Enter” button.
If LCD shows E4 with NO load connected or,
LCD shows current as 0.00A. WITH a load of more than 50Watts running,
Then follow the Reset Procedure as follows;
3) Reset:
Dis-connect the unit by removing all connections in Reverse sequence from 6 to 1 (see Page 8),
then follow the reset procedure:
i. While holding down the “Menu” button, re-connect the Battery terminals to the unit.
ii. Release the “Menu” button, this will prompt the LCD to show “FFFF”
iii. First connect the PV then the Load terminals
NOTE: Always connect the Negative first, then the Positive for all connections
5.
Meaning: Solar Module reverse polarity warning
Remedy: Reconnect solar module correctly
E5 could also mean: not enough sunlight to charge the battery.
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The Leading Edge in Solar Technology
Waste electrical products should not be disposed of with household waste
Please recycle where facilities exist
Check with your local authority or retailer for recycling advice
Specifications are subject to change without prior notice
Copyright reserved by ProVista Technology Limited
Instruction manual Ver. 2.1
FOR TECHNICAL
ADVICE OR HELP
PLEASE CONTACT:
PH: 07 3219 6655
FAX: 07 3219 6644
EMAIL: [email protected]
WEB: www.electroparts.com.au
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