Smart-LF series User Manual
Contents
1. Smart LF series Solar Charge Controller 5A 10A 15A 20A with Programmable Street Light Function User Manual Solar Charge Controller SM05 10 15 20 LF User Manual Solar Charge Controller Thanks for selecting the Smart series solar charge controller Although the Smart is very simple to use please take the time to read this user manual This will help you to make full use of many advantages the controller can provide your solar lighting system With your new Smart LF series controller you own a state of the art device which was developed according to the latest available technical standards and suitable for LiFePO4 rechargeable battery It comes with a number of outstanding features such as Suitable for LiFePO4 rechargeable battery Strong and durable aluminum case IP67 12V 24V Automatic recognition 6 modes for solar street light system Dimming function 30 70 of rated power adjustable Digital Unit to configure Smart charge controller via UART External temperature probe measuring the ambient temperature is more accurate Whole electronic protection 2 Safety instructions and waiver of liability 2 1 Safety DThe 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 2 Batteries store a large amoun2. Solar terminal Battery terminal Load terminal Red LED Battery has low oii capacity Change battery Green Solar array faulty LED on orwrong polarity Remove faulty connection reverse polarity Reverse polarity Protected 1 Protected 1 Protected 2 Switches off immediately Switches off with delay Short circuit Protected Protected 3 Over current Reverse Current Protected Over voltage Max 55V 4 Max 40V Under Switches off voltage switches off the load if the temperature Oveniemp reaches the set valuel 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 connecting the controller 6 Street Light Function The Smart LF solar charge controller comes with a sophisticated Street light function It controls the load output at night and is widely programmable There are 6 modes available Mode 1 Single time and Dusk to Dawn mode Mode2 Double time mode can set the dimming time Mode 3 Double time mode can
3. escription of Day Night threshold The controller recognizes day and night based on the solar array open circuit voltage only functional in street light mode This day night threshold can be modified according to local light conditions and the solar array used It will take effect in next day if the mode of controller is changed via Digital Unit ow Voltage Disconnect Function L Low voltage disconnect voltage LVD 10 5 21 0V Low voltage reconnect voltage LVR 11 5 23 0V E If the controller goes into low voltage protection it will restore only when the battery being recharged and the voltage reaching the reconnect voltage E Around oblique line value separately on behalf of 12V and 24V system s value 8 Default Settings Default Settings Load control mode Mode 1 Dusk to Dawn Low voltage disconnect 10 5 21 0V Low voltage reconnect 11 5 23 0V Battery type LiFePO4 Day Night threshold 3 0 6 0V You can configure Smart LF solar charge controller with Digital Unit See Digital unit manual for details The Setup of Smart LF series solar charge controller is almost the same as Smart series the only difference is the Battery Type Load disconnect voltage and Load reconnect voltage of Smart LF are already be set and can not be changed by Digital Unit 9 Technical Data Model SM05 LF SM10 LF SM15 LF SM20 LF Nominal voltage 12V 24V automatic recognition Max solar c
4. rminal of Smart are connected together and therefore have the same electrical potential If any grounding is required always do this on the positive wires Connecting capacitive load may trigger short circuit protection LED indicatio Faults amp Alarms 4 1LED Display Explanation LED Status Function Battery connected Flash 0 4s 0 4s day detected Green On Battery connected night detected Off No faults detected Red Slow flash 0 5s 2s Dimming Off No battery connected Red y Green Lighted together second Controller start up Page 1 of 3 Pages Solar Charge Controller SM05 10 15 20 LF User Manual 4 2Faults amp Alarms Faults Status Reason Remedy Red LED i Load will reconnect as soon on Battery is low as battery is recharged Switch off all loads Remove Over current Short short circuit Controller will circuit of loads are slow flash Over temp Loads Red LED switch on load automatically after max 1 minute After the temperature reduces the load opens automatically Check if other sources overcharge the battery If not controller is damaged not Battery voltage too supplied i SE Red LED high gt 15 6 31 2V fast flash Battery wires or battery fuse damaged battery has high resistance Check battery wires fuse and battery Battery is empty after a short time Battery is not being charged during the day 5 Safety Features
5. set the load off time Mode 4 Double time mode can set the load off time Full Power Dimming Mode 5 Double time mode can set the load on time before morning coming Mode 6 Double time mode can set the load on time before morning coming Full power Dimming m Mode 1 Single time and Dusk to Dawn mode Day night threshold WL Sunrise Day night threshold Sunset Time 1 Time 2 Light on Dusk to Dawn Light off Light off E Mode2 Double time mode can set the dimming time Day night threshold Se i ZSunrise Day night threshold W7 Sunset yK Light on Light off Dimming Light off m Mode 3 Double time mode can set the load off time Day night threshold Se Sunrise Day night threshold Sunset yx Light on Light on Time 2 Light off Light off Light off E Mode 4 Double time mode can set the load off time Full Power Dimming Day night threshold WW N A Day night threshold Sunset NK E Mode 5 Double time mode can set the load on time before morning coming Day night threshold Day night threshold ROSE Sunset DK P Sunrise Light on Light offa E Mode 6 Double time mode can set the load on time before morning coming Full power Dimming Day night threshold Day night threshold WA Sunset YW oo fac Dimming Light off Page 2 of 3 Pages Solar Charge Controller SM05 10 15 20 LF User Manual D
6. t 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 3 Batteries can produce flammable gases Avoid making sparks using fire or any naked flame Make sure that the battery room 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 Installation The following diagrams provide an overview of the connections and the proper order Digital Unit E To avoid any voltage on the wires first connect the wire to the controller then to the battery panel or load E Make sure the wire length between battery and controller is as short as possible E Recommended minimum wire size SMO5 LF 1 5 mm SM10 LF 2 5mm SM15 20 LF 4mm E Be aware that the positive te
7. urrent or load current 5A 10A 15A 20A Over charge voltage 14 6 29 2V Over charge release voltage 14 0 28 0 V Load disconnect voltage 10 5 21 0 V Load reconnect voltage 11 5 23 0V Lighting hours 0 18 Hours Day Night threshold 3 0 7 5V 6 0 15 0V Battery type LiFePO4 Max solar voltage 55V Max battery voltage 40V Dimming 30 70 of rated power Cable length Over voltage protection Dimensions Weight 85 x 70 x 20 mm 200g 120mm 80mm 15 6 31 2V 85 x 85 x 20mm 210g Wire size SMO5 LF 1 5mm SM10 LF 2 6mm SM15 20 LF 4mm Typical power consumption lt 12mA Ambient temp 40 C 60 C Case protection IP67 Max altitude 4000m Subject to change without notice Ver CL15 Page 3 of 3 Pages
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