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MX60 Manual Rev 3.qxd

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1. fixed minimum time period of 15 seconds for the AUX output terminals to be energized Low Battery Disconnect Mode Load Management Power Shedding The Aux output terminals are energize when the battery voltage drops below a low battery set point for a time delay period The time period is adjustable from 0 254 minutes Remote Control A MATE can control the operation of the Aux output in the MX controller Only one MX or FX device s Aux control output can be controlled by the MATE PRESS EXIT TO CONTINUE TO THE j BACKLIGHT CONTROL SCREEN TAux Relay Control Manual On Exit Next On Off Figure 8 Auxiliary Output Set up Screen Backlight Control The back lighting of the LCD screen and the buttons consumes about watt The user can control backlight options using the setup screen shown in Figure 9 Depending on your energy production you may elect to leave the lighting off or on There is also a third option called Auto Tapping any key quickly while in Auto mode will turn the lights on for 30 seconds This first key tap to turn on the backlight will not change any of the settings PRESS EXIT TO CONTINUE TO THE Exit Auto On Off BATTERY EQUALIZATION EN u u f J VOLTAGE SET UP s CaA 4 SCREEN Backlight Control Figure 9 Backlight Control Set up Screen Battery Equalization Flooded electrolyte batteries should occasionally be subjected to an equalization process to convert sulfation from the
2. lead plates This process can be dangerous so make sure you understand it completely before equalizing your batteries The default EQ setting are equalize voltage set to absorb volts and equalize time set to one hour The screens shown in Figures 10 through 12 allows the user to change the equalization voltage and process NOTE VALVE REGULATED LEAD ACID VLRA OR SEALED BATTERIES SHOULD NEVER BE EQUALIZED UNLESS SPECIFICALLY RECOMMENDED BY THE MANUFACTURER N Battery Equalize PRESS NEXT TO gie CONTINUE TO THE Exit Next Down U BALLERN N EQUALIZATION TIME SET UP N Fi i Pa k a ka in i El Ei Fa ni Cy CD CD CD a a r Pi J F a us u aa ee a a a tee a m ri a a u a Sen i Figure 10 Battery Equalization Voltage Set up Screen f gt Battery Equalize f PRESS NEXT TO ol ime CONTINUE TO THE Exit Next Down Up j BATTERY k J y EQUALIZATION N 4 START SCREEN Figure 11 Battery Equalization Time Set up Screen 10 r USER CONFIGURATION P oe COMPLETE a PRESS STOP TO l Battery Equalize f RETURN TO THE MAIN Time STATUS SCREEN 02 Hours Exit Start Stop ks z O R Le O OO 3 pa PRESS EXIT TO pone CONTINUE TO THE MISCELLANEOUS Figure 12 Battery Equalization Start Screen SCREEN NO 1 The Battery equalization process must be started manually The screen shown in Figure 12 is used to start the equalization process The EQ process is automatically
3. or if it is routed adjacent to other wiring or sources of power surge protection on the batteryt side of the MX60 is also recommended Surge protection on both the input and output of the MX60 is required for extended warranty protection Connections The wiring terminals for the MX60 charge controller are shown in Figure 3 There is no required connection sequence Figure 3 MX60 wiring area and wiring terminals The large terminal block in the center is for PV PV BAT and BAT The aluminum terminal on the right side of the chassis is the equipment ground The equipment grounding terminal can mounted on the outside of the enclosure if desired although normally the equipment grounding conductors will be routed in the same conduits with the input and output circuit conductors If the equipment grounding terminal is moved to the outside make sure that the star washer is re used This washer is used to penetrate through the paint thus grounding the chassis NEC requires the use of an array disconnect and a battery disconnect The MX60 can use a 60 amp 125VDC breaker such as the OBDC60 breaker All of the large terminals should be torqued to 30 inch pounds The PV BAT terminal will accept up to 4AWG wire The equipment ground takes up to 2AWG An optional MX60 remote battery temperature sensor is connected to the right of the BAT terminal in a RJ11 marked Battery Temp This sensor is mounted on one of the batteries using the double ba
4. workmanship performed by any person or firm installing its products THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE OR JURISDICTION TO JURISDICTION OUTBACK POWER SYSTEMS RESPONSIBILITY FOR MALFUNCTIONS AND DEFECTS IN HARDWARE IS LIMITED TO REPAIR AND REPLACE MENT AS SET FORTH IN THIS LIMITED WARRANTY STATEMENT ALL EXPRESS AND IMPLIED WARRANTIES FOR THE PRODUCT INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF AND CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE LIMITED WARRANTY PERIOD SET FORTH ABOVE AND NO WARRANTIES WHETHER EXPRESS OR IMPLIED WILL APPLY AFTER SUCH PERIOD SOME STATES OR JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU OUTBACK POWER SYSTEMS DOES NOT ACCEPT LIABILITY BEYOND THE REMEDIES SET FORTH IN THIS LIM ITED WARRANTY STATEMENT OR LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION ANY LIABILITY FOR PRODUCTS NOT BEING AVAILABLE FOR USE SOME STATES OR JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAM AGES SO THE ABOVE EXCLUSION OR LIMITATION MAY NOT APPLY TO YOU During the two year period beginning on the invoice date OutBack Power Systems will repair or replace products cov ered under this limited warranty that are returned to OutBack Power Syst
5. 0 65 and 95 volts nominal input 26 5 volts nominal output 1900 ee ee ABER a ee aaar S gf a ee SR 9200 ee a a ME SY as fon he pe sp fs os Efficiency Efficiency oa jj a de o4 estj ae Be o3 Ze n_a pv 02 of ff ee a a o oO 500 1000 1500 2000 Input power MASO Efficiency vs Input power fO and 95 volts nominal input 48 5 volts nominal output Efficiency co _ ab LLI Input power OutBack Power Systems Two Year Limited Warranty OutBack Power Systems Inc warrants that the products it manufacturers will be free from defects in materials and work manship for a period of two 2 years subject to the conditions set forth below The limited warranty is extended to the original user and is transferable The limited warranty term begins on the date of invoice to the original user of the product The limited warranty does not apply to any product or part thereof damaged by a alteration or disassembly b accident or abuse c corrosion d lightning e reverse polarity f repair or service pro vided by an unauthorized repair facility g operation or installation contrary to instructions pertaining to the product OutBack Power Systems liability for any defective product or any part thereof shall be limited to the repair or replace ment of the product at OutBack Power Systems discretion OutBack Power Systems does not warrant or guarantee the
6. Out Back Power Systems MXGO PV MPPT Charge Controller INSTALLATION AND USER S MANUAL Please read this entire manual prior to installing and using the MX60 OutBack Power Systems Inc 19009 62nd Ave NE Arlington WA 98223 360 435 6030 900 0028 1 Rev Introduction Your OutBack PV MX60 Maximum Power Point Tracking MPPT charge controller enables your PV system to achieve its highest possible performance Rated for up to 60 amps of DC output current your MX60 can be used with battery systems from 12 to 60 vdc with PV open circuit voltage as high as 125 vdc The MX60 s setpoints are fully adjustable to allow use with virtually any battery type chemistry and charging profile Your MX60 allows you to use a higher output voltage PV array with a lower voltage battery such as charging a 24 vdc battery with a 48 vdc PV array This reduces wire size and power loss from the PV array to the battery inverter location and can maximize the performance of your PV system Your MX60 comes standard with an easy to use and understand display of the PV system s performance The four line 80 character backlit LCD display is also used for programming and monitoring of the system s operation Your MX60 can also be connected to the OutBack MATE system controller and display to allow monitoring of up to eight MX60 controllers from a distant location up to 300 feet away The MATE also includes an opto isolated RS232 port for connecti
7. absorb tion stage and the end current level is reached before the charge timer has reached zero ChgT in Figure 13 the MX60 will switch to float charge mode This is an optional setpoint and is not required to be adjusted in most installations 12 Specifications Output Current Rating 60 Amps Nominal Battery Voltage 12 24 36 48 or 60VDC programmable PV open circuit voltage 120VDC Maximum Standby power consumption Less than 1 watt typical Charging regulation methods Five stage Bulk Absorption Float Silent Equalization Voltage regulation setpoints 13 80VDC Equalization Voltage Adjustable 1 0 to 5 0VDC above Bulk setpoint Temperature compensation With optional sensor 5millivolts per degree C per 2V cell Voltage step down capability Can down convert from any PV array voltage within PV VOC limits of 120V to any battery system voltage Examples 48V array to 24V 60V array to 48V Digital Display 4 line 20 character backlit LCD display Remote Interface RJ45 modular connector Cat 5 cable 8 wire Operating Temperature Range 40 to 600 C derated above 250 C Environmental Rating Indoor type 1 Conduit knockouts Two 1 2 3 4 on the back one 3 4 1 on each side two 3 4 1 on the bottom Warranty Two years parts and labor optional extended warranty available Dimensions Unit 14 5 H x 5 75 W x 5 75 D Boxed 17 8 H x 10W x 7 D Weight Unit 12 pounds Boxed 15 pounds Mx lt 60 Efficiency vs Input power 4
8. access code Press the button below the word ENTER Hit the button below NEXT to select the nominal battery voltage then press ENTER The MX60 will ask ARE YOU SURE When you push the YES button the unit will reset and then displays the Main Status Screen Ann N o9 To reset these parameters to the factory defaults repeat steps 1 through 4 above The actual Absorb and Float voltages will be modified automatically with the use of the external temperature sensor You can view the compensated voltages in Miscellaneous Screen No 3 The amount of compensation the temp sensor provides is 30 millivolts per degree Celsius for a 12 volt system This compensation is multiplied by 2 for a 24 volt system etc Charger Parameters The charger parameters that are automatically adjusted when the nominal battery system voltage is set can be modified The default ABSORB Volts and FLOAT Volts setpoints are based on average lead acid battery systems The default charger current limit is 60 Amps If the manufacturer of the batteries you are using recom mends different ABSORB Volts and FLOAT Volts setpoints you can change the default setpoints using the Charger Set Up Screen shown in Figure 7 If your system requires current limiting other than 60 Amps due to breaker or wire rating you can change the current limit setpoint using this screen Enter the Charger Set Up Screen from the Main Status Screen Figure 6 by pushing button 1 Bu
9. ck tape included Battery manufactur ers recommended charging voltages are based on 25 C 77 F Batteries cannot be properly charged without a remote sensor unless the batteries remain at 70 F The OutBack Temp sensor will automatically change voltage up or down depending on the sensor s temperature This is especially important in very hot or very cold climates This is a highly recommended option To the right of the temp sense jack is a small two position terminal block marked AUX The terminals are marked Ground and 12V The terminals are programmable to accomplish an assortment of functions such as load diversion or alarms The output current available on this terminal block is 200 milliamps This is enough to power the coil of a relay or for a small piezo buzzer or LED indicator The AUX output is protected internally by an automatic resetting poly fuse To the left of the PV terminal is an RJ45 jack marked MATE The MATE is the OutBack remote display panel Most of the status that is available on the MX60 is available at the Mate as well Some triggered events can be accomplished at the MATE also Figure 4 The MATE System Management and Remote Control CAUTION It is normal for the PV input voltage input voltage to rise up to a level close to the battery voltage when the battery is connected and the PV array is disconnected This is a normal condition for the MX60 The MX60 is designed for PV input only and will not function properly w
10. ems facility or to an OutBack Power Systems authorized repair facility or that are repaired on site by an OutBack Power Systems authorized repair technician To request limited warranty service you must contact OutBack Power Systems at 360 435 6030 within the limited warranty period If limited warranty service is required OutBack Power Systems will issue a Return Material Authorization RMA Number Mark the outside of the package with the RMA number and include a copy of the purchase invoice in the pack age You must ship the products back to OutBack Power Systems in their original or equivalent packaging prepay ship ping charges and insure the shipment or accept the risk of loss or damage during shipment OutBack Power Systems will ship the repaired or replacement products to you freight prepaid if you use an address in the continental United States where applicable Shipments to other locations will be made freight collect 14 REGISTER YOUR PRODUCTS Your purchase of an OutBack Power Systems product is an important investment Registering your products will help us maintain the standard of excellence you expect from us in terms of performance quality and reliability Please take a moment to register and provide us with some important information Name Address City State Zip Code Country Telephone Number E mail Sold by Installer Purchase Date Model Number _MX60 Serial Number Check all that apply Off Gr
11. id Installation Grid Tie Installation Residential Installation Commercial Installation This registration form can be removed from the MX60 Manual folded and mailed using the address on the reverse side EXTENDED WARRANTY APPLICATION OutBack Power Systems offers an optional three year extension to the standard two year limited warranty Purchase of extended warranty coverage is available on products listed below provided conditions shown are met Extended warranty coverage must be purchased within 90 days of the original sale of the product covered PRODUCT REQUIRED SURGE PROTECTION EXTENDED WARRANTY COST FX2024 AC Input AC Output DC Input 300 00 FX2048 AC Input AC Output DC Input 300 00 MX60 DC Input DC Output 100 00 MATE NA 50 00 HUB 4 NA 35 00 HUB 10 NA 50 00 Products Covered Serial Number Extended Warranty Cost Total Send check or money order payable to OutBack Power Systems Include a completed copy of this application and send to OutBack Power Systems Extended Warranty Program 19009 6294 Ave NE Arlington WA 98223 USA 15 FROM OutBack Power Systems Inc 19009 62nd Ave NE Arlington WA 98223
12. ith other power sources or combinations of PV and other power sources or in parallel with other charge controllers Operation Status The MX60 Charge Controller has a 4 line 80 character LCD display and four soft key buttons to allow the user to adjust battery charging parameters and access other information The MX60 has an adjustment screen lockout that requires an access code to make any changes The MX60 is factory preconfigured for a 12V battery system All of the default settings are multiples of 12V nominal settings The default bulk setting is for 14 3 VDC The float setting is 13 15 VDC The controller will process up to 60 amps of output current It is recommended to install up to a maximum of 48 amps of PV to give the controller some room to boost the PV current J OutBack 24V Power MX60 Systems Soft keys 1 2 3 Figure 5 MX60 Start up Screen Note that the selected nominal battery system voltage is shown in the upper right corner Figure 6 shows the Main Status Screen This default screen shows the following information PV 50 Bat 25 Vdc In 20 Out 40 Amps Watts 1000 Aux off KWH 02 5 MPPT Figure 6 MX60 Main Status Screen Software Version Check Hold button No 2 down to show the software version Modes of Operation The modes of operation will change occasionally during the day based on PV array output and battery system state of charge Sleeping PV output voltage is below minimum operating level
13. ng a couple 10 5mm screws lockwashers and nuts Plastic snap in bushings may be substituted for metal nipples if the two boxes are screwed together The use of a 7 8 inch spacer behind the MX60 when installed in either of the two rear positions will allow the mounting foot holes to be used to secure the chassis back to the wall When mounting the MX in a confined space be careful not to block the fan opening or the air inlet holes towards the bottom of the chassis on either side One side may be blocked but not both Although this will not damage the controller it will decrease efficiency and may cause it to shut off due to an overtemperature error Wire and Disconnect Sizing When wiring the MX60 note that there is a current limit on the output at 60 amps and that the unit is listed to operate continuously at 60 amps There is no 80 derating as required by the NEC for fuses conductors and most circuit breakers The MX60 is a buck type converter and does not boost the output current when the PV array peak power point voltage is below the battery voltage as may happen on hot days in 24VDC PV and a 24VDC battery system or a 48VDC PV and a 48VDC battery system This unit can supply up to 60 amps output depending on the nominal PV array voltage and the nominal battery voltage The output is current limited to 60 amps To meet minimum NEC requirements the output conductor should have an ampacity after any temperature and conduit fill correction
14. on to a PC computer for data logging and system monitoring A built in Auxiliary Output Control System can be used to control a secondary control circuit relay or contactor It can be used to control a diversion load low battery disconnect load management power shedding or other functions Important Safety Instructions A SAVE THESE INSTRUCTIONS This manual contains important instructions for the MX60 PV MPPT Charge Controller that shall be followed during installation and maintenance of the charge controller B Torque the terminal block and ground terminals to 30 inch pounds 4Nm C Use a minimum of 6AWG copper conductors only suitable for a minimum of 75 degrees C The terminal block will accept up to 4 AWG conductors The ground terminal will accept up to 2 AWG conductors D This symbol is used to identify chassis ground 28 E This charge controller is intended to charge lead acid battery systems sealed or vented with nominal voltages of 12 24 32 36 48 54 or 60 volts DC For other battery chemistries contact the battery manufacturer for specific charge control settings and methodology F The MX60 PV MMPT Charge Controller is for indoor use only Installation The MX60 is designed to be mounted in a variety of ways One of the more common methods of mounting is on an OutBack charge controller bracket CCB attached to an OutBack PSDC enclosure Each MX60 comes with three 10 stainless steel sheet metal screws for this pur
15. pose Under the wiring compartment cover are holes through the mounting feet for attachment to the CCB There is also a mounting tab at the top of the MX60 When mounted to the OutBack CCB the left side knockout will line up with knockouts in the PSDC A standard or 1 plastic snap in bushing will offer protection from chafing between the two boxes Note that there are two placement options on the CCB that can be used to match with knockouts in the PSDC Mounting holes and knockouts are compatible with C40 controllers to help set an industry standard Two MX60 controllers may be installed on the CCB Note the placement shown in Figure 1 Figure 1 Two MX60 Charge Controllers mounted on a CCB Mounting the MX60 Up to three MX60 s can also be mounted on top of a PSDC Below is a view from the top of the PSDC enclosure The MX60 will mount using 1 TSC threaded nipples to the 2 spacings One knockout is provided and one pilot hole for the second hole The 1 83 spacings are for two Solar Boost controllers 0 i OW 000 Oo HOU N Se u pes m 2 ia f z Figure 2 MX60 mounting options on the top of an OutBack PSDC DC Disconnect Enclosure Two 1 TSC threaded nipples may be used to secure the controller to the PSDC top for many installations All of the wires will fit through one knockout so the second can be used as a means of attachment If two nipples are used for wiring then drill and through bolt to the PSDC top usi
16. rating unless the sensor ia removed User Configuration Many MX60 factory set parameters can be changed by the user Pressing the button under NEXT selects which parameter you are going to change The one that is presently selected will have a in front of it Pressing the button under EXIT will store the value in non volatile memory Disconnecting the MX60 from the battery will not require re pro gramming SET BATTERY SYSTEM VOLTAGE FIRST Battery System Voltage The nominal battery system voltage can be changed from the default of a 12 volt battery to match your particular battery system Only the battery system voltage needs to be set the MX60 automatically sens es the nominal PV array voltage and finds the maximum power point during operation Setting the nominal battery system voltage will require entering an access code to access the change screens The fol lowing access code is required for this unit 141 Use the following procedure to change parameters Battery switched off Hold down push buttons 1 and 3 Left to right buttons are 1 2 3 4 Turn battery switch on while holding buttons 1 and 3 down Release buttons as soon as OutBack Power Systems appears on the LCD screen You will see the message MX60 has been reset pick a configuration It will ask what mode to run Push button 1 MPPT then push NEXT You will now be at the password screen Push DOWN until the number reaches your
17. s The MX60 is not producing any power Wakeup As the PV open circuit Voc rises above the battery system voltage the MX60 prepares to deliver power to the batteries During this 5 second period the MX is calculating PWM duty cycles turning on power supply voltages in the proper sequences making internal calibrations and performing an initial PV IV Amps Volts sweep At the end of the wake up period the MX60 closes its relays and produces power At dusk and dawn this will happen many times until there is not enough power from the PV array to keep going Upon closing the relays if it is determined that it is just still too early or too late the MX will display Lolite for a few seconds and then display Snoozing for 5 minutes Think of it as if the MX has just hit the snooze button on an alarm clock and is taking a short nap MPPT The MX60 is in maximum power point tracking mode and is maximizing the performance of the PV array Voc Err This is an indication that the open circuit voltage of the PV is significantly above the last stored measurement The MX60 will automatically restart after one minute No intervention is required Re cal There are certain abnormal conditions that can confuse the current measuring method in the MX When and if this happens the artificial intelligence built into the MX will take a few seconds to re calibrate the current monitoring circuit Bat Tmp Err The temperature sensor is damaged The MX60 will stop ope
18. s of 1 25 x 60 75 amps NEC 310 15 690 8 9 This would normally indicate that the output conductors would be 4 AWG but a larger size may be required if there are temperature and or conduit fill corrections required With an output conductor rated at 75 amps 1 25 time continuous output current a circuit breaker ratted for continous 100 duty at 60 amps continuous output like the Outback OBDC 60 breaker may be used to provide the code required output circuit overcurrent protection and disconnect The PV array output connected to the MX60 input may be as high 60 amps but at this current level there is no current boosting or maximum power point tracking due to the 60 amp output current limit Additionally the input current may exceed 60 amps on bright sunny days and any excess power would be lost The size and ampacity of the input conduc tors must be selected to handle 1 56 times the short circuit current of the PV array Any disconnect or circuit breaker connected to the input conductors must also be rated at 1 56 times the short circuit current for the PV array unless it the breaker rated for 100 duty in its enclosure If that is the case the circuit breaker may be rated at 1 25 times the PV array short circuit current In terms of NEC compliance and the 60 amp output rating on the MX60 the largest PV array that can be connected to the MX60 should have a rated short circuit current of 48 amps This will meet NEC requirements and allow the MX60
19. sh the maximum power point of the PV array 11 f PRESS NEXT TO CONTINUE TO THE MISCELLANEOUS J SCREEN NO 3 Force Bulk or Float Exit Next Float Bulk Figure 14 Miscellaneous Screen 2 Force Bulk or Float Pushing the button under FLOAT or BULK will force the charger into that charge state PCB CmpV Btmp GMR Totlkwh EndA x gt PRESS EXIT TO PCB CmpV Btmp GMR RETURN TO THE a Gan Good mien Ga MAIN STATUS SCREEN Exit Cirw Dec Inc i j Figure 15 Miscellaneous Screen 3 Temperature measurement value used to control the cooling fan s operation and overtemperature protection The temperature measurement is not the actual internal temperature but as a reference value Compensated voltage that the controller is using as a target for voltage regulation Battery temperature sensor reference value used to compensate the charging process This is an arbitrary between 0 and 255 and is not the actual temperature Output value of the current sensor used to calculate output amps watts and track the PV array Total kW hours accumulated every night from daily KWh Pressing and holding Clrw for 3 seconds clears this value The daily KWH are added to the counter at the end of each day Normally an absorb charge cycle is timed Decreasing Dec or increasing Inc sets the optional end current level in Amps While the controller is regulating the charging process in the
20. terminated once the EQ time period has occurred Pressing Stop will over ride the timed EQ charge Miscellaneous Screens The screens shown in Figures 13 14 and 15 are primarily for engineers technicians and customer service personnel who need to access technical information The following is a brief description of the contents of these screens Voc State PWM ChgT Temp Comp Wak Rstrt _T Voc State PWM ChgT PRESS NEXT TO Bett one oe CONTINUE TO THE Exit Next Wak Sleep MISCELLANEOUS J SCREEN NO 2 Figure 13 Miscellaneous Screen 1 This is the open circuit voltage of the PV panels measured at the last wakeup cycle The MX60 has thousands of lines of code Each operation is called a State This number is useful for troubleshooting This is the duty cycle of the buck converter This is the minute counter for the Absorption and EQ cycle It counts up from zero 000 while in the Bulk cycle and then counts down from a maximum of 120 minutes in the Absorption cycle This allows the MX60 to enter the Float stage sooner when the controller starts the charging process with a full battery It is not used Battery temperature compensated absorb and float setpoints The setpoints will rise when the battery is cold and will be lowered when the battery is hot Allows manual startup of the MX60 after it has entered the snoozing stage Forces the MX60 to restart from sleep mode or to re establi
21. to perform maximum power point tracking functions The following charts show maximum distance in feet of various guage two conductor copper wire from the PV array to the MX60 MPPT PV charge controller with a 2 maximum volt age drop Temperature and conduit fill corrections may be required 12 Volt PV Array Distance in Feet Two Wires 2 Voltage Drop 12 Volt Battery 24 Volt PV Array Distance in Feet Two Wires 2 Voltage Drop 12 or 24 Volt Battery System 48 Volt PV Array Distance in Feet Two Wires 2 Voltage Drop 12 24 or 48 Volt Battery System 60 Volt PV Array Distance in Feet Two Wires 2 Voltage Drop 12 24 or 48 Volt Battery System Amps 8 6 4 2 00 20 40 ee 2 5 14 180 290 me 2 5 72 15 145 230 O DARAN A EREEREER 24 Amps 3 6 4 2 10 20 40 8 9 142 223 360 530 720 1160 10 72 114 182 290 460 580 920 en en 164 308 Amps 8 6 4 2 10 210 mo 8 nm m 265 725 oo 1400 227 ae Surge Protection Since PV Arrays are usually mounted on a roof or other elevated structure protection from lightning induced power surges and other transient power disturbances between the PV array and the MX60 charge controller using a surge pro tection device on the input side of the MX60 is highly recommended If the connection from the MX60 to the battery string is over 15 feet
22. tton under KWh Pressing NEXT selects which parameter you are going to increase or decrease The one that is presently selected will have a in front of it You may need to re enter your access code for this set up screen PRESS BUTTON 1 ri ON MAIN STATUS SCREEN TO ENTER CONTINUE TO THE CHARGER SET UP AUXILIARY RELAY SCREEN LK NS SCREEN PRESS EXIT TO Figure 7 Charger Set up Screen Auxiliary Output The user can set the function for this secondary control circuit Pressing NEXT selects which parameter you are going to increase or decrease The choices are Manual Disabled Diversion Low Battery Disconnect and External The terminal marked Aux supplies a 12 VDC at 200 milliamp max output This output can be used to power the coil of a contactor or relay It can also directly drive a small piezo buzzer or a small 12V LED indi cator Manual Mode You can turn on and off the AUX output manually from the MX60 keypad Disabled The AUX output terminals have no output Diversion Mode Used when a wind or hydro generator is connected directly to the batteries and excess power needs to be diverted when the battery is full This mode can also be used to turn on a fan for battery box ventilation The AUX output terminal will become active produce 12VDC when the battery voltage reaches ABSORB or FLOAT voltage minus an adjustable value The value is adjustable in tenths of a volt from 0 1 to 5 0 volts There is a

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