ORORA 10+ 20+ 40+ User Manual
Contents
1. Menu 5 Nightlight function morning settings When the nightlight function type is set to EVENING MORNING mode you can set the load ON hours before sunrise in this menu The default load ON hours before sunrise is 0 hr Menu 6 Day Night threshold In this menu you can set the open circuit voltage of PV panel that the RO controller should know it s day or night The default day night threshold is 4 9V for 12V PV system 9 8V for 24V PV system Menu 7 Buzzer on off You can turn ON turn OFF the buzzer in this menu Menu 8 Settings of Excess Energy Management and datalogger To use ROI or ROM1 the functions of RO interface should be properly set in this menu Menu 9 Individual factory settings You can save your current menu setting or reset to default factory setting in this menu Programming logout When you exit programming menu the controller displays the state of charge available energy of the battery and the status of the load Mind that once you have entered the programming menu you can exit it at the last item only We therefore recommend that you first note down your required settings in the check boxes beside the menu structure and then do the program ming in one go This makes programming easier and avoids errors All programming settings are stored in a non volatile memory and remain stored even if the controller was disconnected from the battery The controller is protected against wrong insta2. See ROM1 manual for details In Programming Menu 8 Serial interface BIDIRECTIONAL NO EXCESS ENERGY is also default setting the behaviour could modified External Temperature Sensor With the optional temperature sensor RO can measure the battery tempera ture and adjust the charging voltage accordingly to extend the battery life span You enter the programming mode with a long push 2s 8s on the button The programming menu structure is described as below Menu 1 Battery type In this menu you can select the proper battery type liquid electrolyte or GEL VRLA according to your PV system to get better charge of your battery The default battery type is liquid electrolyte Menu 2 Low voltage disconnect In this menu you can set 5 different LVD modes to protect the battery from being deep discharged Please see section DESCRIPTION OF FUNCTIONS for details The default low voltage disconnect LVD setting is Mode 1 Disconnect at 11 4 V at nominal load current up to 11 9 V at no load current Menu 3 Nightlight function type In this menu you can set the type of nightlight function or switch off the nightlight function of your RO controller The default setting of nightlight function type is OFF Menu 4 Nightlight function evening settings When the nightlight function type is set to EVENING MORNING mode you can set the load ON hours after sunset in this menu The default load ON hours after sunset is 0 hr
3. There are 2 modes available DUSK TO DAWN and EVENING MORNING The mode can be selected in Programming Menu 3 l l S gt Qo Ly Light on a to Dav Light o Evening Timing Mid of night Morning Timing Light on lt _ _ _ gt Light o Number time to time after Number of hours O mid of night mid of night of hours lt ___ 7 If EVENING MORNING is ei ee allows choosing the MORNING timing behaviour and allows choosing the EVENING timing behaviour Mind that the load output is switched off as soon as the battery has reached the Low Voltage Disconnect threshold The Low Voltage Disconnect has priority above the nightlight function Mid of night is detected automatically as the middle between dusk and dawn no real time setting is required It may take some days until the controller has learnt midnight This method can cause some inaccuracy but avoids any clock readjustment The controller s Mid of night can be different from the real time midnight depending on your location The controller recognizes day and night based on the solar array open circuit voltage In this day night threshold can be modified according to the requirements of the local conditions and the solar array used wre DZA _ Thresholdetting range 7 7 15 4 Switching point day gt night Switching point night gt day 4 9 9 factory setting 1 0 2 Curve of open
4. 0V the controller implies a 24V system If the battery voltage is not within the normal operation range approx 12 to 15 5V or approx 24 to 31V at start up a status display according to the section ERROR DESCRIPTION occurs Battery Type The controller is preset to operate with lead acid batteries with liquid electrolyte If you intend to use a VRLA battery GEL type you can adjust the controller in Programming Menu 1 see back page The equalization charge is deactivated then In case of any doubts consult your dealer The regulator warms up during normal operation If there is insufficient ventilation e g in an installation cabinet the controller limits the solar charge current to prevent overheating The regulator does not need any maintenance or service Remove dust with a dry tissue m t is important that the battery gets fully charged frequently at least monthly Otherwise the battery will be permanently damaged a A battery can only be fully charged if not too much energy is drawn during charging Keep that in mind especially if you install additional loads In normal operation mode the controller displays the state of charge avail able energy of the battery Any change of the state of charge SOC to a lower status is additionally signalled acoustically System conditions are displayed as follows gt 80 60 80 35 60 10 35 Gre gate C oF EA ries me 1x 2x lt 10 Load Disconne r
5. Connect the wires leading to the loads with correct polarity Mind the recommended wire size RO10 min 2 5 mm2 a RO20 min 4 mm RO40 min 10 mm T Fasten the strain relieves If you intend to use the Excess Energy Man agement output follow these steps a Mount the excess energy signal wires as shown in the picture beside Connect the signal wires to the excess energy management input of the appropri ate load Reconnect the 4 pin terminal to the left socket of your RO Set the interface function to Serial Interface EXCESS ENERGY amp CURRENT i DATA in Programming Menu 8 9 Close the terminal lid Now you have successfully connected your RO controller Be aware that the negative terminals of the RO controller are connected internally and therefore have the same electrical potential If any grounding is required always do this on the negative wires Self Test As soon as the controller is supplied with power either from the battery or the solar array it starts a self test routine This is indicated first by running LCD bars for approx 0 5 seconds and then the firmware version is displayed in coded symbols for about another second this is for service purposes only Then the display changes to normal operation System Voltage The controller adjusts itself automatically to 12V or 24V system voltage As soon as the voltage at the time of start up exceeds 20
6. and keep your hands dry Keep children away from batteries and the charge regulator Please observe the safety recommendations of the battery manufacturer If in doubt consult your dealer or installer 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 manufac turer shall not be liable if there has been service or repair carried out by any unauthorised person unusual use wrong installation or bad system design Opening case voids warranty Equalization voltage 14 8 29 6 V 25 C 2h Temperature compensa 4 mV cell K tion Max solar panel current Remove reverse polarity Permanent sound Battery wrong polarity Mount controller at a location with better ventilation Controller limits D solar current g Flashes Check solar array current 10 20 40 A according to model number 25 C without load current at 50 C 10 20 40 A according to model number 25 C without solar current at 50 C Dimensions 89 x 90 x 38 mm wxh x d Weight CXN10 CXN20 175 gr CXN40 186gr Max wire size 16 mm AWG 6 Max load current 6 mA 25 to 50 C Self consumption Ambient temperature range Subject to change without notice Version 20071206 Made in one of the following countries China Germany Arrid Australia WW
7. loads that make use of excess energy Additionally it has a serial interface which can be used with an optional interface adapter ROl a The charge controller has a number of safety and display functions The controller is intended for indoor use only Protect it from direct sunlight and place it in a dry environment Never install it in humid rooms like bathrooms The controller measures the ambient temperature to adopt the charging voltage therefore it must be installed in the same room as the battery The controller warms up during operation It shall be installed on a non flammable surface only REMARK Connect the controller by following the steps described below to avoid installation faults T Open the terminal lid Khe Remove the screws from the strain relief and take off the strain relief bridges Mount the controller to the wall with screws that fit to the wall material Use screws with 4 to 5 mm shaft and max 9 mm head diameter no counter sunk alll Mind that the screws have to carry also the force applied by the wiring Mind also the minimum required distance to floor and ceiling this is necessary for ventilation reasons A DIN Rail mounting plate is available as A lt an accessory This allows mounting the sita S controller on a standard 35mm DIN rail san D Use the screws supplied with the mount R ing plate to fix it to the controller i Connect the wires leading to the battery with correct
8. polarity To avoid any voltage on the wires first connect the controller then the battery Mind the recommended wire length min 30 cm to max approx 100 cm and the wire size RO10 min 2 5 mm RO20 min 4 mm RO40 min 10 mm Wrong polarity will cause a permanent warning sound WARNING If the battery is connected with reverse polarity the load terminals will also have the wrong polarity Never connect loads during this condition REMARK The controller has a built in voltage drop compensation which automatically compensates battery wire voltage drops of up to 250 mV REMARK Mind the recommendations of your battery manufacturer 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 RO10 15A RO20 30A RO40 50A 5 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 RO10 min 2 5 mm RO20 min 4 mm RO40 min 10 mm REMARK place positive and negative wire close to each other to minimize electromagnetic effects REMARK Solar panels provide voltage as soon as exposed to sun light Mind the solar panel manufacturer s recommendations in any case 6 To avoid voltage at the load terminal push the ad button to shut off the load output
9. Programmable Solar Charge Controller with Negative Ground RO10 RO20 RO40 User Manual English Page 1 Dear Client Thank you very much for buying this ORORA product With your new RO 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 outstanding features such as m Multifunctional LC display Programmable Low Voltage Disconnect with new ALVD Adaptive Low Voltage Disconnect Sophisticated programmable nightlight function m Excess Energy Management EEM for better utilization of your solar system Complete electronic protection m Negative Grounding This manual gives important recommendations for installing using and programming as well as remedies in case of problems with the controller Read it carefully in your own interest and mind the safety and usage recom mendations at the end of this manual m The charge controller protects the battery from being overcharged by the solar array and from being deep discharged by the loads The charging characteristics include several stages which includes automatic adoption to the ambient temperature The charge controller adjusts itself automatically to 12V or 24V system voltage The pushbutton allows switching the load on and off manually The charge controller can be programmed for lighting applications The controller provides a control output for special
10. W arrid com au C State of ChargeMain Menu Display Menu Programming Menu flashing 1 i f Load on off y 2 e a D fA let oe Short push y lt 1 Second f _ ae Long push gt 1 Second B Battery type liquid electrolyte CEE ROREMRS Low voltage disconnect current compensated 11 4 11 Low voltage disconnect current compensated 11 0 uliza V LVD current comp ensated adaptive 11 0 12 2 V Low voltage disconnect 11 5 Y Low voltage disconnect 11 0 V Cn gt h eS si d Nightlight function OFF Nightlight function DUSK TO DAWN Nightlight function EVENING MORNING ki N he TEN aaia Wi i PE Night ight function G OFF EVENI Nightlight function EVENING 1 HR NANING o FHRStin Nightlight function EVENING 3 HRS Bage argon Nightlight function EVENING 5 HRS NOMBRE Bester NOSIS Berst NOSE ferske C Miao mia SP MOIRE EOE NESEN Nightlight funtion EVENIN hight MSht hight ight O LITE TT ajaa l A i z my pA s f gt PRERE BRN SE 93 j V7 4 R iz 7 MOR MOR Nek Night MORN MOR t NING t NING
11. ads to longer life time of the battery because it allows recovery of the battery by full recharge Maximum battery life Disconnect at 11 5 V fixed setting Appropriate if bypass loads draw current directly from battery Disconnect at 11 0 V fixed setting Appropriate if bypass loads draw current directly from battery Mode with lower disconnec tion point Battery is cycled deeper this can shorten battery life time The controller is preset to Mode 1 from the factory Use to change the setting see back page In case of doubts which mode to choose consult your dealer because this has to be evaluated depending on the battery used Excess Energy Management Function EEM Mode 2 Mode 3 Mode 4 Mode 5 The controller provides a built in excess energy management function This function in combination with especially designed loads allows to make use of excess energy which would be lost otherwise because of the overcharge protection of the battery A better utilization of the solar system is the benefit Also the battery treatment is improved because more energy comes directly from the solar panel instead of the battery Ask you dealer about available loads that can make use of excess energy To connect your Excess Energy load with the controller see picture 8 signal wires Nightlight Function The RO controller comes with a sophisticated nightlight function It controls the load output at night and is widely programmable
12. circuit voltage solar array The two voltage levels before after the slash are valid for 12 V and 24 V systems respectively To find the right value we recommend measuring the solar array open circuit voltage at the time when twilight has reached the level when the controller should switch on off This value the closest available can then be set according to the description in the programming section Programming Lock out By pushing the programming button for 8 sec in normal operation mode the programming lock out is activated to prevent any accidental settings change Another 8 sec push releases the lock out Programmable Solar Charge Controller with Nightlight Function RO10 RO20 RO40 User Manual English Page 2 Interface and Datalogger ROI and ROCOM The controller comes with a serial interface which can be connected to a PC with an optional interface adapter ROI In Programming Menu 8 Serial interface BIDIRECTIONAL NO EXCESS ENERGY is also default setting the behaviour of the serial interface can be modified Remote Display ROM1 The ROM1 remote display is designed to display panel current load current and battery voltage of your PV system and status values like charging overload low voltage disconnect as symbols Additional it can display several values of RO s datalogger of the past 7 days such as Ah SOC Battery voltage morning evening This provides you more detailed information of your PV system
13. ght function NG OFF t NING O ight function NG 1 HR ght function N HRS t NING 2 ight function NG 3 HRS ight function 4 HRS tlight function Nigh MORNING 5 HRS Nightlight function MORNING FROM 2 HRS aft Nightlight funct FROM Nightlight functi FROM 4 HRS aft Nightlight function MORNING FROM Nightlight funct FROM er mid of night ion MORNING HRS after mid of on MORNING er mid of HRS after mid of Day Night thresho 107 eae ht thresho 1 3 1 S6lar vol Day Night thresho 2 1 4 2S 6lar vol Day Night_thresho 2 7 5 4S6lar vol Day Night thresho 32 ewe ht thresho 3 7 6Sblar vol Day Night_thresho 4 4 8 8 Sblar vol Day Night thresho Day Night thresho ion MORNING HRS after mid of d 2 0 V Solar voltage d tage d tage d tage d 6 5 Solar voltage d tage d tage d 8 V Solarspannung d 5 5 11 0Slar voltage oa ht threshold 6 0 12 1 Sblar voltage Da 6 Night_ thresho 13 2S6lar voltage ai thresho 7 d d 14 3 Solar voltage Day Night thresho 7 0 Buzzer ON Buzzer OFF d 15 4S6lar voltage night night night night a KH Pl FP J i G A E GO O GO G O AA GO G G O a A d G o we ais CL sewel e Fel ye Is Serial interface EXCESS amp CURRENT DATA Serial interface EXCESS se amp DATALOGGER Serial i
14. ig ove gt 2 Oo 0 Flashes 3x 5x 25x The percentage corresponds to the available energy until Low Voltage Disconnect in relation to a fully charged battery As long as the solar array supplies enough voltage to charge the battery this is indicated by up moving bars alternately to the state of charge display In normal operation the loads can be switched on and off by pushing the button This is indicated in the display ORORA Load Load manually ON manually OF z Special conditions are shown in the LC display if the Low Voltage Disconnect function shuts off the load output or in case of various other error condi tions See section ERROR DESCRIPTION for details Acoustics Signals The controller has an acoustic signal which indicates the change of the state of charge This function can be deactivated in Programming Menu 7 The controller has 5 different modes to protect the battery from being deep discharged Mode 1 Disconnect at 11 4 V at nominal load current up to 11 9 V at no load current Normal operation mode for good battery protec tion Disconnect at 11 0 V at nominal load current up to 11 75 V at no load current Mode with lower disconnection point Battery is cycled deeper this can shorten battery lifetime Disconnect at 11 0 V to 12 2 V depending on load current and previous charging cycles This adaptive mode le
15. llation or use At the solar At the battery At the load terminal terminal terminal Battery connected with correct Unrestricted Unrestricted polarity panter y connected f Unrestricted Acoustic with wrong Unrestricted Warni Unrestricted arning polarity Yes if only the Load output is ttery is connected protected but Acoustic Warning ea Pe Unrestricted Short circuit Unrestricted CAUTION Battery Unrestricted must be protected by fuse Guareirent Controller limits Controller switches current off load terminal Controller is Thermal overload electronically m ate protected Unrestricted Unrestricted Unrestricted Varistor 56 V Controller switches Undervoltage A Normal operation Yes not at 24V ba system voltage Reverse polarity Controller switches off load terminal Controller switches off load terminal WARNING The combination of different errors may cause damage to the controller Always remove errors before continue connecting the controller Load will reconnect we Battery is low ue as soon as battery Overcurrent is recharged Switch off all loads Short circuit of loads Remove short circuit Controller will switch on load automatically after max 1 minute Check proper ventilation of controller After cooling down the loads are reconnected automatically Check if other sources overcharge the battery If not controller i
16. nterface BIDIRECTIONAL j NO EXCESS ENERGY Fa E E ey G a a G E Ve ae a fe i a a Pas Vp a E a E sf LS Keep individual settings Reset to factory preset Date of your own settings
17. s damaged Controller is B thermally g Flashes Loads are not supplied overloaded and has disconnected the loads Battery voltage too high gt 15 5 31 0 V Battery wires or battery fuse damaged battery has high Apt ia resistance ne Battery has low ue capacity No up moving bars Check battery wires fuses and battery Battery is flat after short time Battery is not being charged during daytime Change battery Solar array faulty or wrong polarity Check Solar array and wiring Battery is connected with reverse polarity Controller is thermally overloaded Solar array exceeds nominal current of controller Intended Use The charge regulator is intended for use in photovoltaic systems with 12 V or 24 V nominal voltage It shall be used with vented or sealed VRLA lead acid batteries only Safety Recommendations Batteries store a large amount of energy Never short circuit a battery under all circumstances We recommend connecting a fuse slow acting type according to the nominal regulator current directly to the battery terminal 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 specific terminals or wires can be up to double the battery voltage Use isolated tools stand on dry ground
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