Lat-NL user manual
Contents
1. 4 Display Functions The controller is equipped with 5 LEDS Charge Discharge display Battery Capacity display Load status display In normal operation the controller shows charge or discharge status battery capacity and load status 4 1Charge display Green LED Solar array supplies electricity Solar array does not supply electricity LED is on LED is off 4 2Status of charge display Yellow LED lt 25 25 75 gt 75 The percentage corresponds to the available energy until low voltage disconnect in relation to a fully charged battery 4 3Load status display Red LED In case of deep discharge or overload short circuit of load the load output is switched off Low voltage Overload or short circuit disconnect LED is on ofload LED is flashing Normal operation LED is off Page 1 of 4 pages Solar Charge Controller LATO5 10 15 20 NL User Manual 5 Night light Function The charge controller has a load terminal which is prepared for nightlight operation and switches on for a selectable number of hours from the dusk There are 2 modes available Dusk to Dawn and Evening Mode Wiz Wz Light on Light off Dusk to Dawn Evening Mode Light on Lightofff Number of evening hour 6 Programming Functio n 6 1Programming Nightlight Function You enter the programming mode with a long push on the button The programming m2. connecting the controller 7 2 Error description Load will reconnect Battery is low as soon as battery L2 L3 L4 flash a is recharged Over current Switch off all loads Red LED Short circuit Remove short Evening mode is flashing Of loads circuit 3 hours Battery is Normal Ls lighted empty after Battery has Change battery Operation L2 flash a short time Red LED low capacity ison y Battery is not being Solar array faulty Remove a Evening mode charged me connection 6 hours during Green LED OF Wrong Polarity reverse polarity Rd L5 lighted the da is off L Check if other a ilash Battery voltage sources overcharge too high the battery er gt 15 5V 31V If not controller Evening mode ene Red and is damaged 4 hours protection Yellow LED ae Fe L5 lighted the right oe Check battery Exit Programming L4 flash side are y wires fuse and lighted AARO AN batter has high resistance 7 e Button 4 LED is Flashing Does not oe Charge or discharge recognize All LED a h the battery to make ShortPush lt 1Second o LED is On the system TE TE he voltage within Lighted operating rang voltage the normal range Long Push gt 1 Second LED is Off at start up Page 2 of 4 pages Solar Charge Controller LATO5 10 15 20 NL User Manual 8 Low Voltage Disconnect Function The controller uses state of charge to protect the battery form being deeply discharged 11 2V 22 4V 11
3. 8V 23 6V Disconnect at 11 2V 22 4V at nominal load current up to 11 8V 23 6V at no load current 1 If the controller goes into low voltage protection it will restore only when the battery being recharged and the voltage reaching the reconnect voltage 2 Around oblique line value separately on behalf of 12V and 24V system s value 9 Mounting and Connecting The controller is intended for indoor use only Protect it from direct sunlight and place itin a dry environment Never install it in humid rooms like bathrooms The controller measures the ambient temperature to determine the charging voltage Controller and battery must be installed in the same room The controller warms up during operation and should therefore be installed on a non flammable surface only Remark Connect the controller by following the steps described below to avoid installation faults Mount the controller to the wall with screws that fit to the wall material Use screws with max 4mm shaft and max 7 5mm head diameter no counter sunk Mind that the screws have to carry also the force applied by the wiring Connect the wires leading to the battery with correct polarity To avoid any voltage on the wires first connect the controller then the battery We strongly recommend connecting a fuse directly to the battery to protect any short circuit at the battery wiring The fuse must take the charge controller nominal current LATO5 NL
4. ventilated Avoid touching or short circuiting wires or terminals Be aware that the voltages on special terminals or wires can be as much as twice the battery voltage Use isolated tools stand on dry ground and keep your hands dry Keep children away from batteries and the charge controller 2 2 Liability Exclusion The manufacturer shall not be liable for damages especially on the battery caused by use other than as intended or as mentioned in this manual or if the recommendations of the battery manufacturer are neglected The manufacturer shall not be liable if there has been service or repair carried out by any unauthorized person unusual use wrong installation or bad system design 3 1Self Test As soonas the controller is supplied with battery it starts a self test routine Then the display changes to normal operation 3 2System Voltage The controller adjusts itself automatically to 12V or 24V system voltage As soon as the battery voltage at the time of start up is within 10V to 16V the controller implies a 12V system else if the battery voltage is within 20V to 30V the controller implies a 24V system If the battery voltage is not within the normal operating rang ca 10 to 16V or ca 20 to 30V at start up a status display according to the section 7 2 Error description occur 3 3Battery Type The LAT NL series controller applies to Liquid and Gel battery the factory default setting is suitable for liquid battery
5. 20A LAT10 15 NL 30A LAT20 NL 40A Mind the recommended wire length Min 30cm to max 100cm The wire size LATO5 NL min2 5mm LAT10 NL min6mm LAT15 20 NL minl1O0mm Warning If the battery is connected with reverse polarity the load terminals will also have the wrong polarity Never connect loads during this condition Connect the wires leading to the solar array with correct polarity to avoid any voltage on the wires first connect the controller then the Solar array Mind the recommended wire size LATOS NL min 2 5 mm LAT10 NL min 6 mm LAT15 20 NL min 10 mm Remark Place positive and negative wire close to each other to minimize electromagnetic effects Solar panels provide voltage as soon as exposed to sun light Mind the solar panel manufacturer s recommendations in any case Connect the wires leading to the loads with correct polarity To avoid any voltage on the wires first connect the wire to the load then to the controller Mind the recommended wire size LATO5 NL min 2 5 mm LAT10 NL min 6 mm LAT15 20 NL min 10 mm 10 Grounding the Solar System Be aware that the positive terminals of the controller are connected internally and therefore have the same electrical potential If any grounding is required always do this on the positive wires Remark If the device is used in a vehicle which has the battery negative on the chassis loads connected to t
6. Solar Charge Controller LATO5 10 15 20 NL User Manual Solar Charge Controller 1 Description of Function 3 Starting up the controller LAT NL series intelligent solar controller is especially for solar photovoltaic power generation system and solar street light system It comes with a number of outstanding features such as 12V 24V automatic recognition Clear readable display of charge discharge and error description Four stages charge way fast boost equal float Temperature compensation Low voltage disconnected reulated by state of charge Programmable nightlight function Max 16mm binding clamp Full automatic electronic protect function This manual provides some important recommendations related to the controller including installation use programming and fault exclusion instructions and waiver of liabilit 2 1 Safety The solar charge controller may only be used in PV systems in accordance with this user manual and the specifications of other modules manufacturers No energy source other than a solar generator may be connected to the solar charge controller Batteries store a large amount of energy never short circuit a battery under all circumstances We strongly recommend connecting a fuse directly to the battery to protect any short circuit at the battery wiring Batteries can produce flammable gases Avoid making sparks using fire or any naked flame Make sure that the battery room is
7. enu structure is described on the follow All programming settings are stored in a non volatile memory and remain stored even if the controller was dis connected from the battery 6 2Test Function During the daytime the testing function can help the user to verify correct installation or for trouble shooting a system problem Short pushing the button will light up the lamp which is connected to the load terminals The lights will be on in the day for 1 minute intervals Within 1 minute the lights can be turned off via pushing button Dusk to Dawn L5 lighted 7 Safety Features and Error description 7 1 Safety features Reverse x Protected 1 Protected 1 Protected 2 S Switches off Short circuit Protected Protected 3 immediately Switches off Over current with delay Reverse Over voltage Max 55V 4 Max 40V Under switches off the load if the temperature Over temp p reaches the set value 1 Controller can not protect itself in a 24V system when polarity of battery or solar is reversed 2 Controller can protect itself but loads might be damaged 3 Battery must be protected by fuse or battery will be permanently damaged 4 The solar panel voltage should not exceed this limit for a long time as voltage protection is done by a varistor Warning The combination of different error conditions may cause damage to the controller Always remove the error before you continue
8. he controller must not have an electric connection to the car body otherwise the Low Voltage disconnect and electronic fuse functions of the controller are short circuited Page 3 of 4 pages Solar Charge Controller LATO5 10 15 20 NL User Manual 11 Technical Data Model LATO5 NL LAT1O NL LATI5 NL LAT20 NL 1a Sv a9 OV 25 BOEN Degree of protection IP22 Subject to change without notice Version DC13 Page 4 of 4 pages
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