GSL electronics MPPT30-1L User manual

Page 1 of 8
Model:
MPPT30-1L
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Operating Instructions
Please read these instructions before use
This revolutionary maximum power point tracker solar charger was
designed using the technology that won GSL Electronics the prestigious
“2008 EDN Innovation award”. A simple, compact and low cost
alternative. Ideal for charging 12V / 28V / 58V LiFePO4batteries with the
new low cost and high efciency grid type panels.
MPPT30-1L Unit
1700W Solar Battery Charger
Maximum Power Point Tracker
MPPT30-1L-R3
PATENT APPLIED FOR - 2010901565

Page 2 of 8
Model:
MPPT30-1L 1700W Solar Battery Charger
Maximum Power Point Tracker
Operating Instructions
Please read these instructions before use
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
MPPT30-1L Specications
Efciency typical 97%
Input voltage 16V to 95V
Saturation Voltage
Default 14.6V / 29.2V / 58.4V
High Capacity Option 14.8V / 29.6V / 59.2V
Long Life Option 14.3V / 28.6V / 57.2V
Maintenance Voltage 14.1V / 28.2V / 56.4V
Output power 1700W / 30A MAX
Quiescent current 0.05A
Thermal protection Multilevel Type
Dimensions (mm) 185 X 145 X 67mm
Indications LED display – OUTPUT STATUS
Basic Wiring Instructions:
MPPT30-1L-R3
Disconnected Connected
Panel +
Panel -
Battery +
Battery -
* Optional Diode
Note: First start up may take up to one minute.
MIHV Remote LED
MIHV
MPPT

MPPT30-1L-R3
Page 3 of 8
Model:
MPPT30-1L
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Operating Instructions
Please read these instructions before use
1700W Solar Battery Charger
Maximum Power Point Tracker
MPPT30-1L General Information:
• Green LED On – Battery OK.
• Green LED Flashing – Battery Low.
• This MPPT is designed to auto detect 12V, 24V or 48V battery systems and select a
suitable charge regime.
• The MPPT 30-1L is shipped set to the default (Nominal) setting which is the safest setting but
if you require Long Life or High Capacity rate, BEFORE wiring the MPPT in, follow the
CHANGING BATTERY TYPE SETTING PROCEDURE..
• The Saturation phase is entered following a low battery condition at dawn and is
maintained for the rest of the day. Otherwise Maintenance voltage is applied.
• Custom oat and absorption voltages and thresholds are possible but minimum orders apply.
• This MPPT has a built in multilevel over temperature protection to improve product reliability
while maximising output power availability.
• The maximum continuous output power is 1700W in 48V systems, 850W in 24V systems
and 425W in 12V systems. The output current is limited to 30A.
• The threshold before the charger will enter a Saturation charge is 13.9V / 27.8V / 55.6V
The MPPT 30-1L is designed to charge LiFePO4from photovoltaic panels. Silicon based
panels such as monocrystalline, polycrystalline and amorphous are suitable.
Important Notes:
• To enhance Battery and Load protection the MIHV or equivalent and a suitable BMS rated to the maximum
panel power and 170% of nominal battery voltage is highly recommended.
• Use only PV Systems with open circuit voltage below 95V and a VMP of 18V for 12V Charging
36V for 24V Charging and 72V for 48V charging.
• This equipment must be installed by qualied personnel only and incorrect wiring can cause
re, injury or death – GSL will accept no responsibility for MPPT misconnection or misuse.
• Use only for 12V, 24V or 48V LiFePO4 batteries and conrm the MPPT settings,
charge voltages and currents are correct for your battery system – if in any doubt seek
qualied advice!
• Use wires suitable for at least 40A, but if wire runs are over 3m then larger wires are
recommended to limit voltage drop and losses.
• Install the unit in a dry place out of direct sunlight and away from ammable liquids or gases.
• Battery fuse ( BF ) is always required and must be located as close to the battery as possible,
its sizing depends on the wire size and load ratings. Typically a 40A 60VDC fuse would do.
• Before connecting the battery always check the battery and PV panel polarity.
• Optional Diode A suitably heatsinked 40A 60V Schottky diode ( its anode connected to
the + panel and cathode to the MPPT + input white wire) may be used, see wiring diagram.
This diode will protect against panel short and block any voltage on the panel but will slightly
decrease the battery charge current.
• IF the optional diode is not installed then shorting the panels when the batteries are
connected may damage the MPPT.

Page 4 of 8
Model:
MPPT30-1L
Operating Instructions
Please read these instructions before use
MPPT30-1L-R3
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
1700W Solar Battery Charger
Maximum Power Point Tracker
VOC
VMP
12V Charging 24V Charging
48V Charging
21 16
42 32 
63 48 
84 64 
42 32 
84 64 
Grid Connect Panel
(size = no. cells in grid)
1x18 Cell Grid 10 8
1x48 Cell Grid 28 23 
2x48 Cell Grid 56 46 
3x48 Cell Grid 84 69 
1x52 Cell Grid 31 25 
2x52 Cell Grid 62 50 
3x52 Cell Grid 93 75 
1x54 Cell Grid 32 26 
2x54 Cell Grid 64 52 
3x54 Cell Grid 96 78 
1x60 Cell Grid 36 29 
2x60 Cell Grid 72 58 
1x72 Cell Grid 44 36 
2x72 Cell Grid 88 72 
1x96cgsp 65 55 
For optimal performance from panel and MPPT please use the following table to
determine the best setup for your situation.

MPPT30-1L-R3
Page 5 of 8
Model:
MPPT30-1L
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Operating Instructions
Please read these instructions before use
1700W Solar Battery Charger
Maximum Power Point Tracker
Changing Battery Type Setting Procedure
1.Ensure all the MPPT wires are disconnected.
2.Remove 7 front panel screws and the front panel and slide out cover – see Figure 1.
3.Locate connector J4. By default this will be Jumperless (Nominal Setting) – see Figure 1.
4.Shift link on J4 to desired battery setting (High Capacity – see Figure 2, Long Life - See
Figure 3) .
5.Slide back cover and t in front panel carefully, ensuring led is still visible through the
faceplate and screw back the 7 mounting screws.
• The above procedure can be repeated to return to Nominal Setting by removing the jumper.
Figure 1.

Page 6 of 8
Model:
MPPT30-1L
Operating Instructions
Please read these instructions before use
MPPT30-1L-R3
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
1700W Solar Battery Charger
Maximum Power Point Tracker
Figure 2 (Above): High Capacity Setting
Figure 3 (Above): Long Life Setting

Page 7 of 8
Model:
MPPT30-1L
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
Operating Instructions
Please read these instructions before use
1700W Solar Battery Charger
Maximum Power Point Tracker
MPPT FAQs
Q: What is an MPPT?
MPPT stands for Maximum Power Point Tracker and is a specialized converter designed to
maintain the PV voltage at the level in which it delivers maximum power to the load or battery.
The panel’s nominal output power can only be obtained with the use of an MPPT.
Q: What are the GSL MPPTs advantages compared to standard solar regulators?
1. Suitable for new lower cost high efciency grid type panels since the GSL MPPT can
efciently charge the batteries from relatively high voltage, say 12V batteries from 36V MPP
panels.
2. Less interference and more accurate voltages during saturation and maintenance.
Q: What sorts of loads can I power with the MPPT30?
1.The maximum bulk charge current with the MPPT30-1 on a 12V battery and 400W panel is
approximately 30A, so you can expect about 100AH per day which means a 100W load for
about 10 hours daily.
2. Following the same reasoning with a 24V 800W panel the MPPT30-1 will supply a daily
load of 200W for about 10 hours.
3. Following the same reasoning with a 48V 1600W panel the MPPT30-1 will supply a daily
load of 400W for about 10 hours.
MPPT30-1L-R3
Q: Is interference possible? And If so what do I do?
GSL’s MPPTs produce far less interference than a conventional solar regulator during the
absorption and oat stages, that is during most of its operating time, and it is designed
to comply with local and international EMI standards however some interference is still
possible. If interference occurs rst try and reorient the aerial or move the sensitive
equipment away from the MPPT wires. Ensure the MPPT chassis is grounded. Grounding a
battery terminal may also help and nally you can try adding ferrite clamps.

Page 8 of 8
Model:
MPPT30-1L
Operating Instructions
Please read these instructions before use
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
1700W Solar Battery Charger
Maximum Power Point Tracker
Q: Why are MPPT not more common in standalone solar systems?
Until now and despite their overwhelming advantages MPPTs have not been commonly used
in standalone solar systems because of cost. The new GSL MPPT specically addresses
this issue making economic sense in a wide range of solar systems.
Q: What sort of batteries should I use?
1. A deep cycle battery is a must due to the cyclical nature of the solar system with a
recommended battery capacity of at least 180AH.
2. A larger battery will not only give longer run time during low light but also will be able to
avoid available PV power being unstored such as when the battery reaches the maintenance
stage.
Q: How do PV temperatures affects charge current?
Temperature increase brings down the PVs maximum power point voltage reducing the
MPPTs current gain available. In principle at 25C it is possible to achieve 30% gain but at
40C, a more realistic average temperature, about 20% is still available.
Q: What happens at low PV currents?
The MPPT will outperform the conventional regulator above 3% of nominal panel power.
Below 3%, about 10W in a 400W panel, the MPPT will have a slightly lower output current
than a non MPPT.
MPPT30-1L-R3
Warranty Conditions: Our products come with guarantees that cannot be excluded under the Australian Consumer Law.
The customer is entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage.
The customer is also entitled to have the products repaired or replaced if the products fail to be of acceptable quality and the failure does not
amount to a major failure.
GSL Electronics (GSL) warrants that its products will, under normal use and service, be free of defects in material and workmanship for a
period of two (2) years from the date of the original purchase by the customer as marked on the customer’s original invoice. Please refer to our
website for full warranty and return information which can be found at http://www.gsl.com.au/faq.html