Selectronic Australia LD250-24 User manual

LD250-24 Volt Owners Manual
LD250-24 Operating Manual
Serial No _______________________________ Purchase Date ______________
Note - Your 2 Year Warranty can only be valid once warranty card is completed and returned to Selectronic
Contents Page No.
Introduction 1
Warranty Card 1
Installation 1
Batteries and Connections 4
Getting Started Quickly 6
Parts Identification 6
Operation 7
STATUS Indicators 7
Maintenance 8
Inverter 8
Batteries 8
Radio Frequency Interference 9
Fault Finding 10
Product Warranty Conditions 11
Specifications 12
Selectronic Service Network 13
Legend for Symbols
Warnings and
electrician’s notes
Hints and Pointers
Examples
USTRALIA
ELECTRONIC
A
S

Introduction
Thank you for choosing to purchase the Selectronic LD250 TRUE SINE
WAVE inverter. Many hours of Research and Development have gone
into the LD250 to ensure this inverter provides you with many years of
reliable service
Large amounts of DC current can be drawn by your LD250, care
must be taken.
Fixed Installation
Warranty Card All fixed installation battery connections must be securely bolted,
using stainless steel nuts and bolts. To protect the connection from
corrosion smear a small amount of Vaseline or similar over the joint.
Never place batteries directly onto a concrete floor, place timber or
similar material beneath the batteries.
It is imperative that you complete your warranty card NOW. Your LD250
is covered by a TWO year warranty; this warranty is in addition to your
rights under the trade practices act of your state or territory.
Returning your completed warranty card will enable us to register your
warranty and avoid any possible delays should service be required. If you
have any comments about our product that will not fit on the warranty card
please feel free to drop us a line. Yes, constructive criticism will also be
welcome.
Warning
As a matter of safety, Selectronic strongly recommend that all fixed
installations be designed and installed by appropriately qualified person. The Solar
Energy Industries Association in your state or territory can provide names of accredited
system designers and installers.
All AC wiring MUST be carried out by an accredited electrician and must conform to
AS3000 and/or any relevant local standards.
The output voltage from an inverter is as lethal as mains electricity.
Installation
200mm
200mm200mm LD250
Inverter
Front
200mm
LD250 Inverter
Electrician’s Note
•All earth’s AC and DC should be bonded
•RFI/Lightning Earth stake should be within 3m of the inverter
•The LD250 is suitable for connection to MEN wiring
•Any AC changeover switch must be a ‘break before make’ type
Please leave a clearance of 200mm on all sides and top of the Inverter.
The LD250 must be installed in a dry, cool, dust-free environment.
It is recommended that the inverter be placed as far from any radio
receivers as possible.
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Portable Use Batteries and Connections
By using optional battery clips, the LD250 can be connected directly to a
vehicle battery. When using Alligator clips ensure they have a tight grip
around the battery post. Wherever possible battery connections should be
bolted. If connecting the LD250 through a cigarette lighter socket the
maximum power output of the LD250 will be severely restricted, this
practice should be avoided. Check with your supplier or installer if you are
unsure.
Batteries are the key to maximum performance from your LD250, if a
battery is too small or not fully charged it may result in de-rated
performance from your LD250.
Battery ratings
Batteries can be rated in one of two ways:
1. CCA = Cold Cranking Ability. This is the amount of power or current that
a battery can deliver for a short period, typically a few seconds. This how
a car battery would normally be rated.
Do not use alligator clips in a moving vehicle
Auxiliary Battery
Earth (to chassis)
LD250 Inverter
Isolator
Vehicle
Alternator
2. Ah = Ampere Hours. This is the maximum amount of energy that can be
stored in a battery; this figure will generally be stated at a particular hour
rate. This is how a deep cycle or storage battery would normally be rated.
Start Battery
Earth
(
to chassis
)
By incorporating an auxiliary battery in the manner above, the starting battery
should remain charged for vehicle starting (see your auto electrician).
The LD250 has sufficient battery cable length to allow it to sit underneath the
vehicle whilst in use. If the ground is wet, place the LD250 on a waterproof
liner.
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100Ah @100hr, this means that when this battery is discharged over
a period of 100 hours, the battery has a capacity of 100Ah. This in
theory means 1 Amp for 100 hours, although this would in practice
result in a totally discharged battery that may not then recover.
To achieve maximum performance from your LD250 you must have a
battery capable of delivering 25 Amps for a short period whilst
maintaining at least 21.0 volts. To increase the capacity of your battery you
may need to join more than one battery together.
•Where batteries are joined
in series, add the voltage of
each battery.
The capacity will equal the capacity of the smallest battery. 2 x 12
Volt 100 Ah batteries connected in series would have a total
capacity of 24 Volts – 100 Ah.
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Getting Started Quickly
•Where batteries are joined
in parallel, add the capacities
together, the voltage will
remain the same as each
batteries voltage.
2 x 12 Volt 100 Ah batteries connected in parallel would have a
capacity of 12 Volts – 200 Ah. This would not suit your 24 Volt
LD250.
If you want to get powered up quickly here are the 10 simple steps.
1. Familiarise yourself with the details in the first 6 pages on this manual.
2. Unpack the LD250 from the packaging.
3. Check unit for any damage that may have resulted during transport, if any
damage is evident report this to your supplier immediately.
4. Make sure the LD250 ON/OFF switch (8) is in the off position.
5. Connect battery positive wire (red) (6) to battery positive or battery fuse.
6. Connect battery neg. wire (black) (7) to battery negative or battery fuse.
7. Plug a 230 - 240V appliance into inverter front power point (4) but do not
switch on.
8. Turn ON/OFF switch (8) to ON.
Only use identical batteries when joining batteries together.
How long will my battery last
To work out how long your battery will last follow this basic guide.
This guide presumes commencing with a fully charged battery.
Take the total rating of the appliance being run
1 light globe 25watts
1 20 inch TV 67watts
1 VCR 30watts
9. LED (1) will illuminate. If no LEDs light, check for correct connection to
battery.
10. You’re away.
LD250 Parts Identification
Total load =122watts
Divide this figure (122) by 20 to know the approximate DC current draw
=6.1Amps
To convert this to Ampere hours, multiply by the number of hours used -
Say 1 hour =6.1Ah
So if we have a 50Ah battery, then with the above example we should have
50 minus 6.1 = 43.9 Ah remaining in the battery.
As a general guide never discharge a battery below 50%. The deeper
a battery is discharged on a regular basis, the less life you can expect
from the battery. See your battery specifications for full details.
LED (1)
LED (2)
LED (3) Socket Outlet (4)
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ON/OFF Switch (8)
Positive (Red) Battery lead (6) can be viewed from the rear.
Negative (Black) Battery Lead (7) can be viewed from the rear.
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Periodic maintenance of your LD250 inverter involves little more than
checking for any obstructions to the black cooling heatsink at the rear of the
inverter. The heatsink must be cleared of any accumulated foreign matter that
may have lodged itself between the fins since the last maintenance check, e.g.
insect nests. Also verify that airflow around the inverter has not become
restricted.
Operation
Three LEDs are provided on the front panel to indicate the operating Status of
the LD250 Inverter.
STATUS indicator LED’s
LED 1, “ON”. Indicates that the inverter is supplying power to the load. Batteries
1. Every week, carry out a thorough visual inspection of all battery
wiring, taking particular note of the condition of inter-connections
between cells. This maintenance should be carried out in conjunction
with the battery manufacturers recommended maintenance.
LED 2, DC Volts Low / DC Volts High.
“Flashing” If the inverter shuts down due to low battery voltage ( the battery
is flat) then LED 2 will flash. Charge the battery by starting the vehicle or use
a battery charger. When the battery is charged the battery voltage will rise,
LED 2 will turn OFF and the inverter re-activate. Safety Hint
When working on batteries of such high capacity it is
essential that you wear protective clothing, some form of eye
protection and rubber-soled work boots. Please regard your
batteries with a great deal of caution, and if in any doubt,
entrust this work to your supplier / installer.
“Permanently ON” If the inverter shuts down due to high battery voltage
then LED 2 will stay ON. When the battery voltage is reduced LED 2 will
turn OFF and the inverter re-activate.
LED 3, Over temperature / AC Overload.
“Permanently ON” If the inverter shuts down due to internal components
getting too hot, then LED 3 will come ON and will remain ON until the
temperature has dropped to a safe level. LED 3 will then turn OFF and the
inverter re-activate.
2. Check that the stainless steel inter-connecting bolts are tight and have
no corrosion. If corrosion is evident, carefully follow the following
procedure.
•Disconnect the system battery fuse before working on the battery
bank.
•If LED 3 is coming ON regularly, either reduce the amount of load on the
inverter or, if possible, move the inverter to a cooler location.
•Unbolt the stainless steel bolts and nuts of any corroded
connections and thoroughly clean the joint with a wire brush or
file, taking extreme care not to short circuit any battery cells with
any tools.
“Flashing” If the inverter shuts down due to too much AC load being drawn
from it then LED 3 will FLASH. The inverter will remain in this condition for
1 minute after the AC load has been decreased to a safe level.
•Re-assemble and smear a small amount of Vaseline or similar
grease over the surface of the joint to slow down any future
corrosion.
•If the inverter remains in this overload condition beyond one minute,
switch 8 (ON /OFF Switch ) should be turned OFF and then back ON to
re-activate the inverter.
Maintenance 3. Once a fortnight or as directed in your battery manufacturer, check the
specific gravity (SG) of each battery cell using a hydrometer, to ensure
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Inverter
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that all cells are performing correctly and are properly charged. Any
serious imbalance should be reported to your system designer in case
remedial action needs to be taken.
Fault Finding
No indicators ON when power is first applied
When first connected, if the LD250 shows no indicators the battery
connections may be reversed. Check that the red battery wire (6) is connected
to the battery positive, and the black battery wire (7) is connected to the
battery negative.
Radio Frequency Interference
Radio Frequency Interference (RFI) can be a problem for owners of inverters.
RFI in a domestic situation may produce noise or interference on a radio or
TV receiver. Inverter shuts down during the middle of the day, and comes
back ON late in the afternoon
Considerable development time has resulted in a reduction of the RFI
generated by the inverter to a level that complies with C-tick requirements.
Compliance to this standard means RFI is low, but how well the inverter
performs in a particular installation can vary. Below are some suggestions to
help reduce the effects of RFI in your installation;
This is more than likely caused by high battery volts during peak charging
times from Solar Panels. Battery volts should never exceed 34 volts. If this is
the case, have your Solar Regulator checked.
•It is recommended that the power system including the inverter be
housed at least 15 metres from the home.
•Ensure an earth stake is placed as close to the inverter as possible and
connected to the inverter via a short length of wire. See page 2 for
wiring details.
•Avoid running DC cables into the home, if at all possible. If this
cannot be avoided, run DC and AC in separate conduits separated by
as much distance as practicable. All DC wiring should also be kept
together and be as short as possible.
•If your inverter is to be installed in a mobile home or similar, try to
keep your inverter at least one metre away from your radio or audio
equipment. The further the better.
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Product Warranty Conditions LD250 24 Volt Specifications
Inverter Type Microprocessor control circuit with PWM full bridge power
stage. True sine wave AC output
Warranty
Selectronic Australia Pty Ltd warrants your inverter to be free from
defects in materials and workmanship under normal use and
service, for an initial period of two (2) years. Defective parts will
be replaced or repaired free of charge within this period.
Conditions
This warranty is applicable only from the date of original purchase.
The provision of this warranty shall not apply if the unit has been
subject to misuse, neglect, act of God, accidental damage or has
been used for a purpose for which it is not intended.
Unauthorised modification or repair will void your warranty.
To ensure a smooth and speedy response to your warranty claim,
please complete and return your reply paid warranty card within 30
days from date of purchase.
Within Australia & New Zealand
The inverter must be returned, at the owner’s cost, to an authorised
service centre listed in this manual. There will be no charge for the
return of the inverter.
Outside Australia & New Zealand
Product purchased for use outside Australia & New Zealand must
be returned to Selectronic Australia’s Service Centre to enable
warranty claims to be processed. Freight cost to be borne by the
customer. No charge will be made for the product return.
Current draw from Battery
Condition Amperage
Inverter ON, with no Load
Maximum Continuous Load (240 Watt)
Surge rating (700 Watt)
0.42 Amps
12.0 Amps
35 Amps
Inverter Power Ratings @ 25ºC
Total Inverter outputCondition
Wattage @ 1.0pf Current
Continuous
Half hour rating
Surge rating (3 seconds)
250 Watt
320 Watt
750 Watt
1.04 Amps
1.3 Amps
2.8 Amps
Battery Voltage Range Voltage
Low DC Volts Cut Out–10 second delay
Low DC Volts Cut In
High DC Volts Cut Out–Instantaneous
22 volts
24 volts
34 volts
Miscellaneous Specifications
Reverse Polarity Protection
Output Voltage Accuracy 0-350 watts
Output Frequency
Total Harmonic Distortion
Operating Temperature Range
Socket Outlet
Chassis
Full Electronic Protection
± 4% @ 12 volt input
50Hz ± 0.01%
<4%
-10º C to 50º C
10 Amp Single Pole
Powder Coated Zinc Steel
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Selectronic Authorised Service Network Notes
Selectronic Australia
25 Holloway Drive
Bayswater
Victoria 3153
Australia
Ph: 03 9762 4822
Fax: [phone]
[email protected]
Burley TV Service Rainbow Power Company
278 Edmondson Ave. 1 Alternative Way
Austral Nimbin
NSW 2171 NSW 2480
Australia Australia
Ph: 02 9606-0279 Ph: 02 6689 1430
Fax: [phone]
Reid Technology Ltd
3-5 Auburn Street
Solar Inverter Services Takapuna
13 Thirteenth Ave. North Shore City
Sawtell Auckland NZ
NSW Ph: 9 489-8100
2452 Fax: [phone]
Ph: 02 66581733 [email protected]
Part No ST-M-LD250 REV-3 17/02/2004
SELECTRONIC
AUSTRALIA
25 Holloway Drive Bayswater, Victoria 3153 Australia
Phone [phone] Fax [phone] Email [e-mail]
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