Samlex America PR-3030 User Manual
Operating instructions
Solar charge controller
10 A / 15 A / 20 A / 30 A
EN
739.704 | 11.10
Contents
1 Safety instructions 3
1.1 Safety instructions are identified as follows 3
1.2 General safety instructions 3
2 Exclusion of liability 3
3 Area of application 4
4 Controller protection functions 4
5 Installation 5
5.1 Mounting location 5
5.2 Connecting the controller 6
5.3 Grounding 6
6 Operation 7
6.1 Display and control elements 7
6.2 Display windows 7
6.2.1 SOC window 8
6.2.2 Voltage window 8
6.2.3 Module current 8
6.2.4 Charging current 8
6.2.5 Load current 8
6.2.6 Ah – Battery charge meter 8
6.2.7 Ah – Battery discharge meter 8
6.2.8 Deep discharge protection advance warning 9
6.2.9 Load disconnection 9
7 Functions 10
7.1 SOC calculation 10
7.2 Charge control 10
7.3 Deep discharge protection 10
7.4 Night light function 10
7.5 Daylight function 11
8 Configuring the controller 12
8.1 Accessing and changing settings 12
8.2 Operating modes 12
8.3 Setting the battery type to Gel / Liquid 12
8.4 Night light settings 12
8.5 Daylight settings 13
8.6 Restoring default values (presetting) 13
8.7 Self test 13
8.8 Serial number query 14
9 Error messages 15
10 Legal guarantee 17
11 Technical data 18
Subject to change without notice.
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1 Safety instructions
1.1 Safety instructions are identified as follows
In this manual, safety instructions for personal safety are identified
with this symbol.
Instructions relating to the functional safety of the system and the
controller are in bold type.
1.2 General safety instructions
Be sure to observe the following instructions when installing the
controller and handling the batteries:
Incorrect handling of batteries results in a danger of explosion!
Escaping battery acid can result in acid burns!
Be sure to always keep children away from batteries and acid!
Smoking, open flames and open lights are not permitted when
handling batteries. Avoid the generation of sparks and wear eye
protection during installation. Be sure to always observe and follow
the handling instructions in the usage instructions and on the
battery.
Use well isolated tools only!
Do not use measurement equipment you know to be damaged or
defective!
The charge controller's constructive protective measures can deteriorate if it is not operated as specified by the manufacturer.
Factory labels and markings may not be altered, removed or rendered unreadable. All work must be carried out in accordance with
the national and the relevant local electrical regulations!
If the device is installed abroad, information on rules and protective
measures must be obtained from the corresponding institutions/
authorities.
Do not start the installation until you are sure that you have understood all technical details in these instructions and always perform
the work in the sequence described in these instructions!
The manual must also be available to third parties for all work
performed on the system.
This manual is a component of the system controller and must be
included with it when sold on.
2 Exclusion of liability
The manufacturer cannot monitor the compliance to this manual, nor the
conditions and methods of installation, operation, usage and maintenance
of the system controller. Improper installation of the system may result in
damage to property and, as a result, to bodily injury.
Therefore, we assume no responsibility or liability for loss, damage or
costs which result from, or are in any way related to, incorrect installation,
improper operation, or incorrect use and maintenance.
Similarly, we assume no responsibility for patent right or other right infringements of third parties caused by usage of this system controller.
The manufacturer reserves the right to make changes to the product, technical data or assembly and operating instructions without prior notice.
Please note: Opening, manipulating or attempting to repair the device
or operating the device in an improper manner will invalidate all legal
guarantee claims.
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3 Area of application
These instructions describe the functions and installation of a charge
controller for photovoltaic (PV) systems to be used for charging 12 V or
24 V lead-acid batteries in the hobby and leisure, residential, business, commercial and small company areas.
The charge controller is only suitable for controlling solar modules. Never connect any other type of charging source to the charge controller. This can destroy the controller and / or the charging source. If other charging sources are
to be used together with the device, first consult your dealer or installer and
observe the information in the SOC calculation section of these instructions.
The controller is basically only suitable for use with the following types of
12 V or 24 V rechargeable batteries:
– Lead-acid batteries with liquid electrolyte
– Sealed lead-acid batteries; AGM, GEL
The respective battery type must be set in the controller, see Setting the
battery type to Gel / Liquid. Observe the instructions of the battery manufacturer before connecting the battery.
Important! The controller is not suitable for use with
nickel-cadmium, nickel-metal-hydride, lithium-ion or any other
types of rechargeable or non-rechargeable batteries. These
types of battery must not be connected to the controller. Be sure to
observe the safety instructions for the respective battery used.
The corresponding manufacturer's installation manual must be observed when
installing the remaining components, e.g. solar modules, batteries and load.
The controller is only suitable for indoor use. It must be
installed in a manner providing protection from weathering
influences such as rain and direct sunlight. Ventilation openings
must not be covered. The controller may only be used for the specified
intended purpose. Also make sure that the permissible model-specific
rated currents and voltages are not exceeded. No liability is accepted
when the device is used in a manner other than for the intended
purpose. Handle the product with care.
4 Controller protection functions
The controller is equipped with various systems for protecting its electronics, the battery and connected load. Triggering of the protection devices
is indicated by an error message (Section Error messages). The protection
devices automatically reset when the error has been corrected.
Caution
Danger of damage to the controller. Despite the protective
functions, the controller can still be damaged when more than
one component is incorrectly connected.
The protective functions of the controller cover the following points:
• Protection against reverse connected solar modules
The rated power of the solar modules must not exceed the rated power
of the controller!
• Protection against reverse connected load devices on the load
output
Protects the controller but not the load device.
• Protection against reverse connected battery
Charging and discharging of the battery are prevented.
• Short circuit fuse at module input
• Short circuit fuse at load output
• Protection against excessive charging current
The controller disconnects the battery and switches off the load.
• No-load protection when operated without battery or load
Load output is protected from the module voltage.
• Reverse current protection
Prevents reverse current from flowing into the solar modules at night. An
additional reverse current diode is not required!
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• Overvoltage and undervoltage protection
Immediately switches off the load output in the case of excessively high
or low battery voltage.
• Overtemperature protection
If the temperature inside the controller becomes too high, then the
controller load output is switched off to reduce the power loss.
• Load output overload protection
If the permissible load current is exceeded, then the load output is
switched off.
• Overvoltage protection
A varistor at the module input provides protection against overvoltages
> 47 V. The component limits the surge energy to 4.4 joules.
• Deep discharge protection / Overcharging protection Prevents exces-
sive discharging / charging of the battery.
• Conforms to the relevant European CE standards
5 Installation
5.1 Mounting location
Mount the device near to the battery, in the orientation shown below, on a
surface with the following properties:
• stable • vertical • non-flammable
• level • dry
The battery cable should be as short as possible (1 – 2 m) and have a sufficiently large cross-section to keep losses as low as possible, e.g. 2.5 mm² at
10 A and 2 m; 4 mm² at 20 A and 2 m; 6 mm² at 30 A and 2 m. For correct
functioning of the temperature compensation of the charging voltage, the
same ambient temperature must exist at both the controller and the battery.
If this is not possible for installation reasons, then an external temperature
sensor is available as an optional accessory.
Do not install the controller outside. The device must be mounted protected
from moisture, dripping water, spray, rainwater and direct or indirect heating, e.g. from direct sunlight.
The device generates heat during normal operation. The rear ventilation
required for cooling the device must not be hindered by the mounting location or by installation in an additional casing.
A free space of at least 15 cm on all sides of the device must be provided to
ensure the necessary circulation of air for cooling. The permissible ambient
temperature must be adhered to at the mounting location.
15 cm
15 cm15 cm
15 cm
The integrated LC display should be protected from UV radiation (e.g. sunlight) Long-term exposure to UV radiation can permanently discolour the
LC display.
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5.2 Connecting the controller
96
96
X
Solar modules generate electricity under incident light. The full
voltage is present, even when the incident light levels are low. You
should therefore work carefully and avoid creating sparks. Observe
the appropriate safety precautions.
Double the normal system voltages can be present during
installation and electrical connection of the DC side of the
photovoltaic system (up to 24 V in a 12 V system and up to 48 V in
a 24 V system). It is always a good idea to cover the solar modules.
When laying cables, ensure that no damage occurs to any of the
constructional fire safety measures present in the building. The
controller must not be installed or operated in wet rooms
(e.g. bathrooms) or in rooms where inflammable gases may
generate, e.g. from gas bottles, paint, varnish, solvents, etc. Do not
store any of the mentioned materials in rooms where solar
controllers are installed!
Connect the individual components to the connection with the corresponding symbols.
Important! The battery can be damaged when the connection
cable is short circuited. Install a fuse in the battery connection
cable to protect the battery.
Observe the following connection sequence when commissioning the
system:
1. Connect the battery to the charge controller – plus and minus.
2. Connect the photovoltaic modules to the charge controller – plus and
minus.
3. Connect the load to the charge controller – plus and minus.
Follow the reverse procedure when uninstalling!
Note: If you do not follow the correct connection sequence, automatic
adjustment for 12 V / 24 V systems will not work correctly and the battery can be damaged!
5.3 Grounding
When constructing a stand-alone solar energy system, from a technical
point of view the controller does not necessary need to be grounded.
However, be sure to always observe the applicable respective national regulations regarding grounding. All positive connections can be grounded but
with negative grounding only one connection can be grounded.
Caution
Danger of damage to the controller. Make sure that no
common connection exists for the Module Minus, Battery
Minus and Load Minus connections, e.g. via a ground
connection.
MADE IN GERMANY
MADE IN GERMANY
6 739.704 | 11.10
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