Lat 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 Normal operation Low voltage Overload or short circuit LED is off disconnect LED is on of load LED is flashing Page 1 of 3 pages Solar Charge Controller LATO5 10 15 20 User Manual 5 Safety Features and Error description 6 Low Voltage Disconnect Function 1 Safety f rea The controller uses state of charge to protect the R 11 2V 22 4V 11 8V 23 6V everse A a A polarity Protected 1 Protected 1 Protected 2 Disconnect at 11 2V 22 4V at nominal load current a Switches off up to 11 8V 23 6V at no load current Short circuit Protected Protected 3 immediately 1 If the controller goes into low voltage protection it will restore only when the battery bei2. ison Connect the wires leading to 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 5 2 Error description Over current Switch off all loads the battery with correct short circuit Remove short polarity To avoid any voltage is flashing Of loads circuit z on the wires first connect the controller then the battery empty after L 22 Battery has Change battery We strongly recommend ee open pa o connecting a fuse directly to the battery to protect any Remove faulty short circuit at the battery connection a short time Solar array faulty wiring nee LED Or wrong PONY reverse parany The fuse must take the aie controller nominal Battery voltage Enea ete edil sources overcharge LATOS 20A too high the battery LAT10 15 30A S He e dee ommended wire length i in e rec wir protection Yellow LED damaged Min 30cm to max 100cm Battery wires or hengt battery fuse side are lighted Check battery wires fuse and battery The wire size damaged battery LATO5 min2 5mm has high resistance LAT10 min6mm The battery LAT15 20 minl0mm voltage is not within the normal operating rang at start up Does not recognize All LED the system Lighted voltage Warning If the battery i
3. LAT Series Solar Charge Controller 5A 10A 15A 20A User Manual Solar Charge Controller LATO5 10 15 20 User Manual Solar Charge Controller 1 Description of Function 3 Starting up the controller LAT series intelligent solar controller is especially for solar photovoltaic power generation system It comes with a number of outstanding features such as 12V 24V automatic recognition O 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 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 2 Safety instructions and waiver of liability 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 r
4. mm LAT10 min 6 mm LAT15 20 min 10 mm 9 Technical Data LATOS LATIO LATIS LAT20 IZAN Oso Over voltage protection 15 5V 31 0V Subject to change without notice Version DC14 Page 3 of 3 pages
5. ng recharged and e ee off Over current Im delay d the voltage reaching the reconnect voltage 2 Around oblique line value separately on behalf of 12V and 24V system s value Over voltage Max 55V 4 Max 40V 7 Mounting and Connecting Under voltage Switches off o The controller is intended for indoor use only Over temp switches off the load if the temperature Protect it from direct sunlight and place it in a dry reaches the set value environment Never install it in humid rooms like 1 Controller can not protect itself in a 24V system when bathrooms The controller measures the ambient Reverse 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 long time as voltage protection is done by a varistor steps described below to avoid installation faults Warning The combination of different error O Mount the controller to the wall conditions may cause damage to the controller with screws that fit to the wall Always remove the error before you continue material connecting the controller Use screws with max 4mm shaft and max 7 5mm head diameter no counter sunk J A carry also the force applied by Load will reconnect the wiring Battery is low as soonas battery 3 pea DED is recharged
6. oom is 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 soon as 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 5 2 Error description occur 3 3Battery Type The LAT series controller applies to Liquid and Gel battery the factory default setting is suitable for liquid battery
7. s connected with reverse the voltage within the normal range polarity the load terminals will also have the wrong polarity Never connect loads during this condition Page 2 of 3 pages Solar Charge Controller LATO5 10 15 20 User Manual Connect the wires leading to 8 Grounding the Solar System the solar array with correct polarity to avoid any voltage Be aware that the positive terminals of the controller on the wires first connect the are connected internally and therefore have the same controller then the Solar array electrical potential If any grounding is required always do this on the positive wires Mind the recommended wire size LATOS min 2 5 mm LAT10 min 6 mm LAT15 20 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 4 Connect the wires leading to the Remark If the device is used in a vehicle which has the loads with correct polarity battery negative on the chassis loads connected to To avoid any voltage on the the controller must not have an electric connection to l l the car body otherwise the Low Voltage disconnect wires first connect the wire to and electronic fuse functions of the controller are the load then to the controller short circuited Mind the recommended wire size LATO5 min 2 5
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