SC-MAX Series Manual - OPTI
Contents
1. Max Series Solar Charge Controller 20A 30A 40A User Manual Ver CK21 1 Safety Instructions and Waiver of Liability 1 1 Safety es 1 2 LabilityExelusion u u wanna anna auge 2 Descnplion of function ou c EMI Nada ad ance P1 3 Optional 3 1 Remote display unit 3 2 Remote temperature sensor 4 Installation 4 1 Mounting location requirements 4 2 Fastening the solar charge controller 4 3 Preparation of wiring ALA GOMMEGUHOM secessisnsdeeas snes ain edcn das Siadccsd seins civsdsugaceedeBannnnadecddcdus anihCdsdanadadaabaded rennen KOD Sindication of Status einen denen una aaa a a aa P3 6 Operating the solar charge controller 6 1 Factory Pre Set configurations 6 2 Main Menu 6 3 Menu Conf System module settings 220000n0eseneeneneneenennenenesnennnnnnnesnnnenennsesnenneenennnenennnnnnnen 6 4 Menu Prog System parameter settings 6 5 Menu Load Load mode settings 6 6 Menu Logg Inquiry of internal data logger 6 7 Example of configuration 6 7 1 Battery type 6 7 2 Resetto Factory Pre Set Configuration 7 Safety Measures 7 1 Electronic Short Circuit Safety 7 2 Hardware Safety 7 3 Safety Feasures 8 Technical Data 8 1 Performance Data 8 2 Controlling Data 25 C 8 3 Parameter settings 9 Malfunctions and Errors 1 Safety Instructions and Waiver of Liability 1 1 Safety DThe solar charge contr2. Total in 1200 View the accumulated value in and out of the system since the controller KAh out 880 installed this data can not be changed Note The minimum value is 1KAh Note All historical data will be deleted only when the device been reset to factory settings Page 8 12 Pages 6 7 Example of configuration 6 7 1 Battery type By pressing the MENU key you leave the online status display and go to the main menu By pressing the key below the corresponding abbreviation Conf System module settings Prog System parameter settings Load Load mode settings and Logg Inquiry of internal data logger you can enter the corresponding menu In the case of this example you have to press the first key from left labelled A which is below the abbreviation Conf This is how you get into the window for programming the Battery type Figure 4 Change the battery type Note If you have pressed the wrong key by accident press MENU to get back to the main menu and start all over again 6 7 2 Reset to Factory Pre Set Configuration In the previous section it is described how to enter the window Battery type The next window up press A is for resetting the solar charge controller to the factory pre set configuration Factory adjust By pressing OK you can enter the Factory adjust window The instruction to press the MENU key plus the OK key appears immediately Only by pressing both of these keys simult
3. Light off Light off Figure3 Load mode The time delay of load open settings Press the OK button to enter the menu press A YW to change the value Light on delay 00 00 The solar charge controller can control night lighting automatically by Light off delay 00 00 evaluating the density of outside light with the help of the solar PV module array Depending on the PV array alignment or shading it may well be that night recognition is activated even though twilight has not yet come to an end By the programmable time adjustment Light on delay the night light switch on may be shifted to a later time Possibilities for programming 00 00 02 00 Interval 5min Default 00 00 The delay time of load close settings Press the OK button to enter the menu press A to change the value After setting Light off delay the light can remain on a period of time after dawn Possibilities for programming 00 00 02 00 Internal 5min Default 00 00 Note When the controller is set to Standard Light on delay and Light off delay have no effect on it but when the controller is set to Auto and Timer the delay time settings work Page 7 12 Pages Night time 1 settings Press the OK button to enter the menu press A to change the value Night timer 1 00 00 When the Load control is set to Timer Night timer 1 is the first part light on time when dus
4. is disconnected Either the whole consumption exceeds the max discharge currents or the max pulse currents were exceeded by using high surge appliances Switch off all loads Remove the fault the controller will switch on load automatically after 1 minute Low voltage Over heat Battery has low capacity To protect the battery all loads powered by the solar charge controller will be disconnected The maximum allowable temperature has been exceeded In order to reduce further heat generation the loads are disconnected automatically As soon as the solar charge controller has cooled down normal operation will resume Reduce loads or hours of operation of loads to keep the battery from being discharged deeply or increase solar array to add energy to the system Connect all loads through the controller to avoid strong discharge of the battery It will restore only when the battery being recharged and the voltage reaching the reconnect voltage Check the ventilation at the back heat sink and clean it if necessary Protect the controller from direct sunshine Reduce warming caused by appliances near the controller Reduce the loads or PV modules Over voltage In particular the recharge process through back up generators or chargers tied directly to the battery causes battery voltages higher than 16 5V 33 0V Disconnect external chargers when the battery voltage is lower tha
5. this window voltage values instead of SOC values for programming the disconnection voltage level The solar charge controller allows the smallest difference between reconnect and disconnect is 0 8V 1 6V If you want to program a high level for disconnection you must first increase the reconnection level Possibilities for programming by SOC 20 70 Default 30 Possibilities for programming by voltage regulation 11 0 12 5V 22 0 25 0V Default 11 1V 22 2V Low voltage reconnected settings Press the OK button to enter the menu press A to change the value Possibilities for programming by SOC 40 90 Default 50 Possibilities for programming by voltage regulation 11 8V 23 6V 13 3V 26 6V Default 12 6V 25 2V Page 6 12 Pages 6 5 Menu Load Load mode settings We can set load mode and time in this menu Figure 3 Load mode press the OK button to enter this menu Load mode settings Press the OK button to enter the menu and press A to Load control change the load mode AUTO Auto Dusk to dawn mode Possibilities for programming Auto Standard Timer Default Auto Day Night threshold Day Night threshold WY r Sunset My gt Z Sunrise Seay N 7 Standard Load on mode Timer Double time mode Light on Light off Light off Day Night threshold Day Night threshold SML Sunset stI Sunrise Night timer1 Night timer2 Light on Light on
6. OC means state of charge and indicates how much remaining capacity the battery still has The SOC is never 100 as due to technical reasons it is easier to indicate a two digit number BAT shows the battery s actual voltage IN is the sum of the charging currents flowing into the battery OUT is the sum of discharge currents flowing out of the battery The second line constantly changes its information All values and system information are indicated alpha numerically The following displays can only be seen during regular operation not while programming SOC BAT IN OUT 88 12 7 26 18 accu 8 3A accu is the balance of all charging and discharging currents As long as the charging current is higher than the discharging current the value is position in the opposite case it is negative lin shows the charging current at the moment When the voltage of the 88 12 7 26 00 battery is getting near the final charge voltage the solar charge controller will lin 26 4A regulate the I in in order to protect the battery from being overcharged The charge current I in is lower than the module current 88 12 7 00 15 Temp 25 C Temp displays the environment temperature of the solar charge controller The solar charge controller status such as Fast charging Equal charging 88 12 7 17 15 Boost charging Float charging and No Charging indicate which st
7. OK button to enter the sub menu After entering the sub menu press A Y to change the value After setting press the OK button to save the set value and return to the previous menu level Pressing the MENU key will exit the setting bring the display back to the normal Main Menu Note 1 If you did not carry out any operation within 60s after entering the setup menu the controller will automatically exit the menu programming and the normal indication of running status appears 2 lf there are no adjustments on an activated submenu value being changed the display indication jumps to the main menu and the adjustment in the open window is not stored or applicable 88 12 7 26 18 Figure 2 Programming Menu l accu 8 3A A v OK MENU OOO v Conf Load Prog Logg A Y OK MENU 0990 Battery type Float charge Load control Day in 100 Liquid 13 7V AUTO Ah out 80 Nominal capacity Boost charge Light on delay Total in 1200 300Ah 14 57 00 00 KAh out 880 Regulation Equal charge Light off delay Soc 14 8V 00 00 Factory adjust D N threshold Night timer 1 Press OK MENU 3 0V 00 00 Disconnect Night timer 2 30 00 00 Reconnect 50 Page 4 12 Pages 6 3 Menu Conf System module settings In this menu you can configure the system modules including battery type battery nominal capacity low voltage protection mode and activate pre set configurations P
8. age of Boost Charging charging is in process After a certain period of time of operation in the Boost and Equal charging modes the Float charge mode is resumed 88 12 7 00 15 The content displays the current load state Load on means the load has Load on been opened Load off means the load is in a closed state Page 3 12 Pages 6 Operating the solar charge controller 6 1 Factory Pre Set configurations With the factory pre set configurations the solar charge controller can be used in most applications without further programming On delivery the controller is always set with these pre set basic configurations that enable immediate use of most typical solar systems after installation The solar charge controller can be reset to the factory pre set configurations at any time with the Menu CONF 6 2 Main Menu Set values and functions can be adjusted with the four control keys on the panel By pressing the key under the MENU a Main Menu appears in the display Conf System module settings Prog System parameter settings Load Load mode settings and Logg Inquiry of internal data logger By pressing the key below the corresponding abbreviation you can enter the corresponding menu Figure 2 Programming Menu After entering the corresponding menu the following actions can be set or viewed the appropriate information You can use the keys A Y to select sub menu and press the
9. anding features such as LCD display One year s data memory 12V 24V automatic recognition External temperature sensor make the temperature compensation more accurate Whole electronic protection Perfect EMC design Many choices of battery type working mode and protection Four charge modes Fast boost equal float on PWM basic 3 Optional 3 1 Remote display unit Remote display unit can display system information failure information and one year s charge and discharge data 3 2 Remote temperature sensor Acquisition the ambient temperature of the battery which can be accurate compensation charge values standard wire length is 2 meters can also be customized according to user needs 4 Installation 4 1 Mounting location requirements Do not mount the solar charge controller outdoors or in wet rooms Do not subject the solar charge controller to direct sunshine or other sources of heat Protect the solar charge controller from dirt and moisture Mount upright on the wall on a non flammable substrate Maintain a minimum clearance of 10cm below and around the device to ensure unhindered air circulation Mount the solar charge controller as close as possible to the batteries 4 2 Fastening the solar charge controller Mark the position of the solar charge controller fastening holes on the wall drill 4 holes and insert dowels fasten the solar charge controller to the wall with the cable openings facing
10. aneously will the factory pre set configurations be set Then the second line shows Done means successfully restore the factory settings Figure 5 Reset to Factory Pre Set configuration 88 12 7 26 18 88 12 7 26 18 l accu 8 3A l accu 8 3A A v OK MENU A v OK MENU OOO OO O Conf Load Conf Load Prog Logg Prog Logg A Y OK MENU A Y OK MENU 9 g Battery type Battery type gt y typ A v OK MENU A v OK MENU Factory adjust Battery type Liquid A Y OK MENU A v OK MENU Battery type Factory adjust Gel Press OK MENU v er AS MENU A v OK MENU Vv Battery type Liquid A v OK MENU Factory adjust Done A v OK MENU Figure 4 Change the battery type Figure 5 Reset to Factory Pre Set configuration Note 1 If you want to make sure that you have programmed correctly press only OK and move through all submenu items to check the values Do not press the arrow keys while checking or you will change the values 2 If you have programmed a wrong value you will reach the window with the undesired value again and press OK to change the value to the correct one by pressing the arrow keysA V Page 9 12 Pages 7 Safety Measures We urgently recommend the installation of a safety device on the battery pole in order to prevent damage from short circuits between battery and the solar charge cont
11. are needed as far as battery behaviour is concerned to prevent ong term damage or poor system performance If you are unsure about any of these settings please refer to your authorised dealer or leave the pre set configurations as they are Float voltage settings Press the OK button to enter the menu press A W to Float charge 13 7V change the value Note The float voltage serves for maintaining the charge in the battery for long periods and preventing self discharge This voltage should not be too high since this may lead to permanent gassing which damages the battery Maximum values are stated on the battery data sheet of your battery For most types of liquid battery this float value is 13 7V 27 4V Possibilities for programming 13 0 14 5V 26 0V 29 0V Default 13 7V 27 4V Boost voltage settings Press the OK button to enter the menu press A to Boost charge 14 5V change the value Possibilities for programming 14 0 15 0V 28 0V 30 0V Default 14 5V 29 0V Page 5 12 Pages Equal charge 14 8V D N threshold 3 0V Disconnect Soc 30 Reconnect Soc 50 Equal voltage settings Press the OK button to enter the menu press A W to change the value Note 1 The equalisation charging can only be adjusted for batteries with liquid electrolyte since high equalising voltages are harmful for sealed batteries The maximum equalising voltage value should be s
12. downwards Page 1 12 Pages 4 3 Preparation of wiring Max current Diamete mm Max20 Max30 Max40 4 4 Connection We strongly recommend connecting a fuse directly to the battery to protect any short circuit atthe battery wiring Solar PV modules create current whenever light strikes them The current created varies with the light intensity but even in the case of low levels of light full voltage is given by the modules So protect the solar modules from incident light during installation Never touch uninsulated cable ends use only insulated tools and make sure that the wire diameter is in accordance with the solar charge controller s expected currents Connections must always be made in the sequence described below Figure 1 System wiring diagram 1st step Connect the battery Connect the battery connection cable with the correct polarity to the middle pair of terminals on the solar charge controller with the battery symbol If the system is 12V please make sure that the battery voltage is within 10V 16V else if the system is 24V the battery voltage should between 20V 30V If the polarity is correct the LCD screen on the controller will begin to show 2nd step Connect the solar module Ensure that the solar module is protected from incident light Ensure that the solar module does not exceed the maximum permissible input current Connect the solar module connection cable to the correct po
13. k coming If set to Auto or Standard Night timer 1 setting is invalid Possibilities for programming 00 00 09 00 Interval 15min Default 00 00 Night time 2 setting Press the OK button to enter the menu press A to change the value Night timer 2 00 00 When the Load control is set to Timer Night timer 2 is the second part light on time before dawn If set to Auto or Standard Night timer 2 setting is invalid Possibilities for programming 00 00 09 00 Interval 15min Default 00 00 6 6 Menu Logg Inquiry of internal data logger Press MENU button to enter the menu you can recall stored data values from today to the last 7 days at the same time you can view the accumulated value in and out of the system since the controller installed From this menu window you can read the actual daily value of amp hours in and out of the system Press OK to toggle the display from today s current running D i 100 an Et go data values to the stored data values for the last 7 days You can choose the desired day to view with the arrow key A Y The values can not be changed PEIRA Note Day simply stands for today and Day 1 for the day before Day 2 Day 1 i 120 AK ak go Means two days ago When a new day of logging starts the data for each of Day to Day 6 will be shifted to the previous day i e the 7th day data will be replaced with the data for the 6th day 6th day replaced by 5th day etc
14. le of the left pair of terminals on the solar charge controller with the solar module symbol 3rd step Connect loads Connect the load cable to the correct pole of the right pair of terminals on the solar charge controller with the lamp symbol To avoid any voltage on the wires first connect the wire to the load then to the controller 4th step Final work Fasten all cables with strain relief in the direct vicinity of the solar charge controller clearance of approx 10cm 4 5 Grounding 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 the 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 Figure 1 System wiring diagram 0000 Page 2 12 Pages 5 Indication of Status The two line display indicates all present system values in short form on the top line and the values are without units Volt Amp etc due to a lack of space The printing above each value serves asa reminder State of charge Battery voltage Charging currents Discharge currents SOc BAT IN OUT S
15. n 15 5V 31 0V controller automatically restored LCD has no display e There is no voltage feed from the battery current operating temperature is too high or too low above below the operating temperature causing LCD not to function Check the battery connections and fuses Check the working temperature Reinstall the controller disconnect everything and connect it again in the right order Subject to change without notice Page 12 12 Pages
16. oad disconnect Soc 30 20 70 voltage Voltage 11 1V 22 2V 11 0 12 5V 22 0 25 0V Load reconnect Soc 50 40 90 voltage Voltage 12 6V 25 2V 11 8 13 3V 23 6 26 6V Technical parameters Factory adjustment Programmable Battery type Liquid Liquid Gel Nominal capacity Low voltage protection mode 300Ah 10Ah 9990Ah Soc Voltage Load mode Auto Auto Standard Timer Light on delay 00 00 00 00 02 00 Internal 5min Light off delay 00 00 00 00 02 00 Internal 5min Night time 1 00 00 00 00 09 00 Internal 15min Night time 2 00 00 00 00 09 00 Internal 15min Page 11 12 Pages 9 Malfunctions and Errors The solar charge controller is protected against damage by various measures Nevertheless always take utmost care in the proper operation of the solar charge controller Short hints of the malfunctions are indicated with the help of the LCD display However errors are only properly indicated in which the system has been properly installed If there are other malfunctions than the ones described below please check first of all if the solar charge controller has been connected to the battery the module and the loads correctly in the right polarity Afterwards check the safety fuses Error message The cause of the malfunction Remedy Short circuit Short circuit Over current The load current is too high and the output
17. oller may only be used in PV systems in accordance with this operating 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 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 ires 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 1 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 ifthere has been service or repair carried out by any unauthorized person unusual use wrong installation or bad system design 2 Description of function With your new Max controller you own a state of the art device which was developed according to the latest available technical standards It comes with a number of outst
18. ress A to enter the menu Battery type selection Press the OK button to enter the menu you may toggle Battery es m between A V Gel to liquid electrolyte iqui Possibilities for programming Liquid Gel Default Liquid Battery nominal capacity Press the OK button to enter the menu press arrow keys Nominal capacity A Vfor changing the nominal capacity and press OK for entering the new value 300Ah Possibilities for programming 10Ah 9990Ah Default 300Ah Note The nominal capacity must be consistent with the actual battery capacity when the controller is installed Low voltage protection mode Soc or voltage control settings Press the OK Regulation button to enter the menu and switch with the keys A W between SOC and See Voltage Possibilities for programming Soc Voltage Default Soc Factory pre set Press the OK button to enter the menu and press the Factory adjust OK MENU button simultaneously to reset the solar charge controller Press OK MENU Note If you press OK MENU all settings and values will be reset and the execution will be confirmed by Done 6 4 Menu Prog System parameter settings In this menu you can set the charging parameters Day Nigh threshold LVD and LVR data Press to enter the menu Note We have tried to insure that the values are limited within ranges that do not damage the battery immediately However certain skills
19. roller 7 1 Electronic Short Circuit Safety An electronic short circuit safety device is built into the solar charge controller and prevents both destruction ofthe solar charge controller and the blowing of the safety fuse in case of short circuits on the load terminals The second line ofthe LCD display indicates this error as Short circuit After elimination of this fault the solar charge controller automatically switches back to normal operation after about 60 seconds 7 2 Hardware Safety In addition to the electronic fuse device mentioned above the solar charge controller has also been protected by regular fuses which have been rated far beyond nominal currents to prevent false blowing of the fuses during surges The safety fuses are wired in parallel In order to prevent fuses from blowing in the case of high currents over a short period of time a high value has been selected Before the fuses blow the electronic safety fuse should prevent any excessive current flow 7 3 Safety Feasures Solar terminal Battery terminal Load terminal Reverse polarity Protected 1 Protected 1 Protected 2 Short circuit Protected Protected 3 Switches off immediately Over current Er Switches off with delay Reverse Current Protected EN Over voltage Max 55V 4 Max 40V Low voltage Switches off Over temp switches off the load if the temperature reaches the set value 1 Controller can not protect i
20. tated on the battery manufacturers data sheet 2 This window is deactivated if you have selected Gel with the menu CONF 3 Battery charging voltage is passed on directly to the loads by the solar charge controller Therefore during equal charging high charging voltages can be programmed that may damage some loads Please select this equal charge voltage very carefully and compare the desired value to the battery and load appliance manufacturers data sheets Possibilities for programming 14 0 15 5V 28 0V 31 0V Default 14 8V 29 6V Note The fast charge voltage is fixed at 14 0V 28 0V users do not have their own set Day Night threshold settings Press the OK button to enter the menu press A V to change the value 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 Possibilities for programming 3 0 7 5V 6 0V 15 0V Default 3 0V 6 0V Low voltage disconnect settings Press the OK button to enter the menu press A to change the value Note 1 The difference between disconnect and reconnect threshold must be at least 20 If you wish disconnect at higher state of charge you have to first adjust the reconnect threshold as per below to 20 above the desired disconnect threshold 2 When you configure voltage regulation you will find in
21. tself 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 Page 10 12 Pages 8 Technical Data 8 1 Performance Data Type of controller Nominal voltage Max solar current or load current Max20 12V 24V automatic recognition 20A Max30 Max40 30A 40A Temperature compensation 4 17 mV K per cell Boost and Equal charge 3 33 mV K per cell Float charge 8 2 Controlling Data 25 C Max solar voltage 55V Max battery voltage 40V Dimensions Weight 127 189 47 550g Max wire size 25mm Typical power consumption 13 8mA Temp range during operation 10 C 60 C Storage temperature 25 C 80 C Case protection IP32 8 3 Parameter settings Technical parameters Factory adjustment Programmable Float voltage 13 7V 27 4V 13 0 14 5V 26 0 29 0V Fast charge 14 0V 28 0V Boost charge 14 5V 29 0V 14 0 15 0V 28 0 30 0V Equal charge 14 8V 29 6V 14 0 15 5V 28 0 31 0V Day Night threshold 3 0V 6 0V 3 0 7 5V 6 0 15 0V L
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