FLEXmax 100 Charge Controller Owner’s Manual
About OutBack Power Technologies OutBack Power Technologies is a leader in advanced energy conversion technology. OutBack products include true sine wave inverter/chargers, maximum power point tracking charge controllers, and system communication components, as well as circuit breakers, batteries, accessories, and assembled systems.
Table of Contents Important Safety Instructions ...................................................................................... 6 Symbols Used........................................................................................................................................... 6 General Safety .......................................................................................................................................... 6 Introduction ...................................................
Table of Contents Status and Information ............................................................................................... 29 LED Indicators ........................................................................................................................................ 29 Modes of Operation........................................................................................................................ 31 Bulk ......................................................................
Table of Contents Applications ................................................................................................................. 65 Array Design ........................................................................................................................................... 65 Sizing Guidelines ................................................................................................................................ 65 Maximum-Power Voltage (Vmp) ..............................
Table of Contents IMPORTANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS! This manual contains important safety instructions for the FLEXmax 100 charge controller. Symbols Used WARNING: Hazard to Human Life This type of notation indicates that the hazard could be harmful to human life. CAUTION: Hazard to Equipment This type of notation indicates that the hazard may cause damage to the equipment.
Introduction Thank you for purchasing a FLEXmax 100 Series Charge Controller. These charge controllers offer an efficient, safe, multi-stage recharging process that prolongs battery life and assures peak performance from a PV array of up to 300 open-circuit volts (Voc). Audience This manual provides instructions for installation, setup, and operation of the product.
Introduction Components and Accessories Table 1 Components Included 1 × FM 100 Charge Controller 2 × Mounting Bracket 1 × Silicone Grease Package 1 × Fan Rainproof enclosure Status indicators with universal symbols Equalize switch Easily accessible wiring compartment To remove the wiring compartment cover: 1. Using a Phillips screwdriver, remove the two screws from the bottom of the compartment cover. (See above.) 2. Grasp the lower edge as shown. Swing the cover out while pulling downward.
Installation Standards and Requirements Installations must comply with all national and local electrical codes. Professional installation is recommended. See page 7 for qualifications of installers. A FLEXmax 100 charge controller operating in unventilated or in other conditions above an ambient temperature of 25°C (77°F) will have a derated power output. See page 61 for more information. If damaged or malfunctioning, the FLEXmax 100 should only be serviced by qualified personnel.
Installation Installation Installing the Fan The fan must be connected before the controller can be used, though it does not have to be installed first. To install the cooling fan: 1. Place the fan against the base of the controller. Two of the heat sink fins have holes that receive the locking tabs on the fan. Align the tabs with these fins. 2. Press the fan straight along the fins until the tabs snap into the holes. 3.
Installation Keyhole Slot Mount To mount using keyhole slots (A): Keyhole slots A 1. Use two slotted #14 wood screws. The mounting surface must be strong enough to support the weight of the FLEXmax 100. NOTE: OutBack is not responsible for damage resulting from inadequate mounting hardware or preparation. 2. Mark the locations where the screws will be inserted on the surface as in B. Space them according to the keyhole slot locations as in D.
Installation Bracket Mount The second mounting method uses brackets on the top and bottom of the controller. This method is useful when mounting the controller next to an OutBack inverter system, as the conduit openings will align. It is also useful for mounting without making advance measurements. The FLEXmax 100 controller comes with two identical brackets. To mount using brackets: 1. Using two ¼” hex head lag screws, mount the lower bracket with the tabs facing upward.
Installation Wiring This section provides instructions on installing PV array wiring into the charge controller. See page 65 for more notes on PV array sizing. All wiring must comply with local and national codes. Grounding This product is intended to be installed as part of a permanently grounded electrical system. This grounding is shown in the wiring diagrams in this book. Grounding methods must comply with local and national codes.
Installation The negative jumper position also completes a connection to the internal ground fault detection and interruption (GFDI) circuit through the GFDI fuse. The jumper is removed if an external GFDI device is used. (See the GFDI section on page 15.) A Ground Battery – Figure 6 Bonding Jumper Positive-Ground Systems The FLEXmax 100 has several critical requirements when used in a positive-ground system. The internal GFDI function cannot be used.
Installation Ground Fault Detection and Interruption (GFDI) If a ground-fault event occurs, the controller’s GFDI fuse will open. The FLEXmax 100 GFDI circuit detects continuity across the fuse. Lack of continuity will cause the charge controller to shut down. If the fuse is not initially installed, the controller will be unable to operate. In either case the LED indicators and the system display will show GFDI Fault. (See pages 30 and 38.
Installation Wiring Size and Requirements CAUTION: Equipment Damage Do not use a power driver or other power tools to tighten wire terminals. This can damage them. IMPORTANT: Wire sizes must comply with all local and national codes. Input conductors and circuit breakers must be rated at 1.56 times the short-circuit current of the PV array (per NEC). OutBack 100% duty continuous circuit breakers only need to be rated at 1.25 times the short-circuit current.
Installation Physical Requirements and Conduit IMPORTANT: Conduit hubs must connect to the conduit before connecting to the FLEXmax 100. WARNING: Burn Hazard The heat sink can become hot when the charge controller is operating. Use caution when touching it during operation. All wire lugs and ground terminals are to be tightened to a torque value of 4 Nm (35 in-lb). If installing in a wet location, any conduit hubs must comply with the requirements of UL 514B.
Installation Accessory Terminals and Ports Remote Temperature Sensor (RTS) Port Reset Button MicroSD Card HUB Port Fan Connector Accessory Terminal Block Figure 9 Wiring Compartment Reset Button This button is used for several functions, including updating the FLEXmax 100 firmware. See page 53. HUB Port This is an RJ-45 port for a CAT5-style cable to connect OutBack system displays or the HUB communications manager. Device and LAN Ports These ports are not currently active.
Installation SD Card When enabled, the microSD card inserted in the slot will record operational status data about the system. The FLEXmax 100 will record data to the microSD card up to the limit of the card. (It has been tested with microSD cards up to 16 GB.) If the card’s capacity is exceeded, the data will begin to be overwritten starting with the oldest first. The microSD card can also be used to update the FLEXmax 100 firmware. See page 53.
Installation AUX terminals 5 and 6 are the AUX output – and + terminals. These terminals are colored gray (–) and orange (+) for easy reference. The terminals can supply up to 250 mA at 12 Vdc (3 W). This circuit contains electronic overcurrent protection, which resets after being overloaded. No additional fuses are required for AUX terminals. The AUX indicator illuminates when the output becomes active. (See page 30 for a description of the LED indicators and their functions.
Installation Battery Sense Terminals The remote Battery Sense terminals are used for accurate voltage monitoring. These terminals connect directly to the batteries. Using the controller’s main battery cables for voltage sensing is less accurate. This is due to voltage rise caused by charging currents on the battery conductors. Aux terminals 7 and 8 are the – and + terminals for the Battery Sense function. These terminals are colored black (–) and red (+) for easy reference.
Installation Wiring Diagrams Photovoltaic (PV) Array Charge Controller PV PV PV Ground PV+ BAT– BAT+ DC Disconnect Panel Ground Bus Bar DC Negative Bus Bar Battery Bank Shunt PV– NOTES: System-specific wiring is not shown. This image shows a single (common) negative conductor instead of separate BAT– and PV– conductors.
Installation Photovoltaic (PV) Array MATE3s PV PV PV Charge Controller HUB/DEVICE Ground PV+ PV– BAT– BAT+ HUB CAT 5E Ground Ground Bus Bar DC Disconnect Panel Inverter HUB/ MATE Shunt Terminal Bus Bar (Negative) RTS Inverter DC Disconnect Battery Bank NOTE: System-specific wiring is not shown.
Installation Wiring the Rapid Shutdown Terminals NEC 690.12 states "PV systems installed on or in buildings shall include a rapid shutdown function to reduce shock hazard for emergency responders". The Rapid Shutdown terminals can make connections to the RSI (Rapid Shutdown Initiator) product, which is part of the OutBack ICS Plus system. A similar rapid-shutdown device may also be used. A single wire is run from one of the yellow terminals (1 or 2).
Installation PV Array A PV Array B Charge Controller A Charge Controller B HUB HUB Control Wiring Terminal Block PV+ PV– BAT– BAT+ Control Wiring Terminal Block PV+ PV– BAT– BAT+ Ground Ground RSI NOTE: Bonding jumper is shown in negative-ground position in the first controller only. System-specific wiring is not shown.
Installation Power Up To power up the controller: 1. Connect battery power to the controller by closing the disconnect. 2. Connect PV power to the controller by closing the disconnect. See Initial Operation on page 27. The FLEXmax 100 uses power from the battery bank to operate. The battery voltage must be at least 15 volts or higher to power up the charge controller. When battery power is detected, the charge controller will flash all LED indicators in sequence as it performs a self-test.
Installation Initial Operation When the PV input circuit breaker is turned on, the FLEXmax 100 automatically detects the PV input voltage. It then enters the “Wakeup” state (see page 34) and prepares to charge the batteries by tracking the maximum power point of the PV array. During the initial tracking, the input PV source is gradually loaded from the open-circuit voltage (Voc) to one half of the Voc. Within this range, the FLEXmax 100 seeks the maximum power point.
Installation NOTES: 28 900-0209-01-00 Rev B
Status and Information LED Indicators The FLEXmax 100 charge controller has no graphical display. It is equipped with four LED indicators. Table 2 LED Indicators Indicators CHARGING STATUS AUXILIARY FAULT All off (with PV power available) = Rapid Shutdown IMPORTANT: The LED indicators do not necessarily tell the amount the controller is actively charging.
St a t us a nd I nform a t ion CHARGING (Blue): Illuminates when more than 10 watts of PV power is available. It is solid or flashing depending on the charging stage. The system display represents these stages as operating modes in the STATUS menu. See page 36 for a list of modes. See page 65 for a description of charging stages. Solid: Bulk or Equalization charging. Accompanied by STATUS indicator 1 . See below for colors. Flashing: Absorption or Float charging.
Status and Information Modes of Operation The FLEXmax 100 goes through many states during its operation. Figure 20 shows an example of the various stages of battery charging and several states when the controller is not charging. (The graph in Figure 20 shows a typical day of charging with a nominal 48-volt system. Charging is described in detail on page 67.) A MATE3s system display has five “mode” messages which represent all states of operation.
Status and Information Absorb The system display shows this message for the Absorption stage of a three-stage cycle. In this stage, the FLEXmax 100 regulates the battery voltage at the Absorb Voltage set point. This stage is temperature-compensated. (See page 68.) Absorption is a constant-voltage, variable-current charging stage. It usually involves a tapering current flow.
Status and Information Floating The system display shows this message for the Float stage of a three-stage charging cycle. In this stage, the FLEXmax 100 regulates the battery voltage at the Float Voltage set point. This stage is temperaturecompensated. (See page 68.) Float is a constant-voltage, variable-current charging stage. It usually involves a minimal (maintenance) current flow.
Status and Information Silent The system display shows the operating mode as Silent if the charge controller has stopped charging. This message represents a variety of conditions, many of which are common. For example, Silent is shown at night or any period of insufficient light. Table 4 lists the LED indicators and the PV open-circuit voltage which show specific Silent conditions. In these cases, no LED indicators will be illuminated. However, Silent may also appear in the event of an error shutdown.
Status and Information MATE3s System Display Battery Status Indicators CHARGER Indicator Charge Controller Soft Key Figure 26 Display and BATTERY STATUS Indicators (MATE3s) The MATE3s System Display and Controller is a display which allows the user to read the operating mode, measurements, and any status messages from the FLEXmax 100 charge controller. It can also change the charge controller’s settings when the default settings are not enough.
Status and Information Charge Controller Soft Key The system display is equipped with a series of “soft” keys with varying functions. From the Home screen, the far left key is designated as the soft key any time a charge controller is connected. (See page 35.) Pressing it will enter the Status menu for the charge controller. Status Screen Modes of Operation: Bulk Absorb Float EQ Silent See page 31 for a description of modes. See page 67 for a description of battery charging.
Status and Information Stats Screen From the Charge Controller screen, the soft key proceeds to the Charge Controller Stats screen. This screen shows data accumulated since the system went online or since the last reset. Screen Items: The Maximum statistics are not incremental. They are updated only if a higher value is measured. VOC displays the highest measured Voc. (See the VOC reading on page 36 for the present Voc.) Battery displays the highest measured battery voltage.
Status and Information Error Screen From the Charge Controller Stats screen, the soft key proceeds to the Charge Controller Error screen. This screen displays fault conditions for the FLEXmax 100. If an item displays Y, the error is active. Some errors accompany a controller shutdown; others simply report status. See the Troubleshooting guide on page 57 for more information on all items. Soft Keys: proceeds to the Datalog screen (see page 39).
Status and Information DataLog Screen From the Charge Controller Error screen, the soft key proceeds to the Charge Controller Datalog screen. This screen shows accumulated daily amp-hour and watt-hour statistics, as well as maximum current, wattage, and maximum and minimum voltage figures. These maintain a continuous daily log, up to 128 days, which can be recalled. One day can be displayed at a time.
Status and Information Graph Screens The soft key brings up the following screens which plot various types of data over time. The first screen shows changes in PV wattage over time. This axis shows date and time in 6-hour increments. This axis shows PV wattage. Figure 33 Output Graph The soft key brings up a screen showing changes in battery voltage over time. This axis shows date and time in 6-hour increments. This axis shows battery voltage.
Programming the FLEXmax 100 Menu Structure in the MATE3s Figure 36 shows the menu structure for adjusting the controller settings in a MATE3s system display. The Main Menu shown below is accessed with the LOCK button and a password. Use the system display control wheel to move up and down between menus (or options within a menu). Use the center button on the control wheel to make a selection. (See the system display literature for more information.
MATE3s Screens Charge Controller Settings Charge Controller menu options include the following: Charger -------------------------------------------------------- > MPPT ----------------------------------------------------------- > Temperature Compensation---------------------------- > Battery Equalize -------------------------------------------- > Grid-Tie Mode ---------------------------------------------- > Auxiliary Output -------------------------------------------- > Calibrate -------------------------
MATE3s Screens MPPT The charge controller uses a maximum power point tracking (MPPT) algorithm which manipulates the output of the PV array to harvest maximum wattage. Although this function is automatic, this menu allows the user to adjust many of its parameters for special applications. See page 66. Set Points: MPPT Mode – Selects between Auto (which allows automatic MPPT) and U-Pick (which limits the maximum power point tracking to a specific percentage of array voltage).
MATE3s Screens NOTE: If the Slope setting is adjusted to any specialized value other than 5 mV, the system display will communicate this value to other networked OutBack devices. The other devices will use the same value. This system-wide compensation only works if there is a single RTS on the system and it is connected to the FLEXmax 100. In all cases, the batteries should be monitored to ensure they are being charged according to the battery manufacturer’s recommendations.
MATE3s Screens Auxiliary Output The AUX (Auxiliary) is a secondary control circuit — essentially, a small power supply that provides a 12 Vdc output current (up to 250 milliamps or 3 watts) to an isolated load. It can be ON with 12 Vdc available at the output, or OFF with 0 Vdc at the output. It can also be set to AUTO. In this setting, the AUX output turns on or off according to specific criteria such as high or low voltage.
MATE3s Screens Table 6 AUX Mode Functions Mode Name Function/Purpose PV Trigger Set Points AUX Polarity Enable Voltage Active High: Activates when the voltage exceeds the set point. Active Low: Activates when the voltage drops below the set point; deactivates when the voltage exceeds the set point. Hold Time Function: When the Enable Voltage set point is exceeded, the AUX output will activate.
MATE3s Screens Table 6 AUX Mode Functions Mode Name Function/Purpose Rapid Shutdown Set Points AUX Polarity None Not Available None Not Available Relative voltage Active High: Activates when battery voltage exceeds the set point. Usually controls an auxiliary load to divert power away from the batteries when voltage is too high. Function: The AUX remains deactivated as long as the Rapid Shutdown terminals remain closed (see pages 19 and 24).
MATE3s Screens Table 6 AUX Mode Functions Mode Name Function/Purpose Diversion: Solid St Set Points AUX Polarity Relative voltage Not Available Hold time Function: When the battery voltage increases, the AUX output goes into pulse-width modulation at a rate of 200 Hz. The response is relative to the charger’s present stage of operation. The voltage must exceed the charger setting (Absorb, Float, or EQ) by the value of the Relative voltage. This must last for the Delay time for the AUX to respond.
MATE3s Screens Photovoltaic (PV) Array Diversion Relay Coil N/C Common PV PV PV Charge Controller Ground AUX PV+ PV– BAT– BAT+ DC Disconnect Panel DC Disconnect Inverter Negative Diversion Load Terminal Bus Bar (Negative) Shunt DC Disconnect NOTE: See page 48 for important requirements when using the mode Diversion: Solid St.
MATE3s Screens Calibrate The Calibrate menu allows adjustment of the controller’s battery voltmeter. If a particular controller’s readings do not match those of another device or a hand-held meter, the calibration feature may improve consistency. Set Points: Battery Voltage – Calibrates the Vdc measurement made at the controller’s battery terminals Calibration Offset Figure 44 Calibrate NOTE: Calibration does not change the actual voltage of the charge controller, only the voltage reading.
MATE3s Screens Firmware Revision To access the FLEXmax 100 firmware revision: 1. Access the Main Menu as shown on page 41. 2. Select the Settings menu. (This option may be highlighted by default.) 3. Select System in the device Settings menu. 4. Select the Firmware Versions menu. 5. The current firmware revision of the FLEXmax 100 will be displayed along with that of the system display and other devices. See page 53 for instructions on updating the controller’s firmware revision.
MATE3s Screens Saving Data Logs (continued) To save a new data log over the name highlighted on the list: 1. Use the control wheel to scroll through the list. 2. When the name to be replaced is highlighted, press . 3. Wait for the message confirming that the profile has been saved to the SD card. 4. Press to return to the Upload and Save Data Log screen. Returns to the Upload and Save Data Log screen. To create a new name for the data log (up to 8 characters maximum): 1.
Updating Firmware Updating the Firmware The FLEXmax 100 and other OutBack products can be updated to the latest revision by installing the latest firmware. Firmware can be downloaded from the website, www.outbackpower.com, to one of several types of SD memory card (see below). The firmware is available for download on the FLEXmax 100 product page or the Firmware page. Make certain the SD card uses FAT32 format. IMPORTANT: Make certain to extract (unzip) the files to the root directory of the SD card.
Updating Firmware 3. Download the latest firmware revision as noted on page 53. Transfer the files to the microSD card. 4. If the file called FN100-00.bin was previously present on the card, delete it and replace it with the downloaded file with that name. This file needs to be in the root directory, not in a separate folder. 5. Before removing the card from the computer it is recommended to eject it using the computer’s onscreen Eject command (usually titled Safely Remove Hardware, Eject Media, etc.). 6.
Troubleshooting IMPORTANT: Check the OutBack customer and user forum at www.outbackpower.com/forum/ for more FLEXmax 100 information. General Troubleshooting An OutBack MATE3s system display may be required for certain troubleshooting steps in Table 7. Table 7 Troubleshooting Symptom Remedy Unit does not power up Check the battery connection and polarity. Reverse polarity or an improper upon initial connection connection will cause power-up issues.
Troubleshooting Table 7 Troubleshooting Symptom Remedy Unit not operating; unit had worked normally before; normal light conditions Check the charging stage. Check other controllers (if present). If the batteries are nearly charged, one controller may taper off (in the Absorption or Float stage) while the other(s) complete the charge. High temperature fault. Check controller temperature (see page 38). The FLEXmax 100 will stop functioning at an Output FETs reading of 90°C.
Troubleshooting Troubleshooting Error Messages Error messages are caused by known faults. These are defined by a list of messages in the Charge Controller Error screen of the system display. See page 38. See the system display literature for instructions on navigating to this screen. Table 8 shows the messages available in the system display. One or more messages will display Y to indicate an error. If a message says N, it is not the cause of the error.
Troubleshooting Troubleshooting Firmware Updates Certain problems may occur when updating the controller’s firmware revision. See page 53. Table 9 Firmware Update Issues Symptom Possible Cause Possible Remedy MATE3s displays No SD Card Installed on FM100 MicroSD card not installed or completely seated Insert microSD card. Make certain it is completely seated. See pages 53 and 54.
Specifications Table 10 Electrical and Mechanical Specifications Specification Maximum Continuous Output Current Maximum Input Current (short-circuit) Nominal Battery System Voltage PV Open-Circuit Voltage Low Operating Voltage Range High Standby Power Consumption Charge Cycle Minimum Battery Bank Size Charging (Output) Range Temperature Compensation Remote Interface Conduit Openings Dimensions (H x W x D) Shipping Dimensions (D x W X L) Weight Shipping Weight Table 11 Specification Operating Temperature
Specifications Directives This product meets the following directives.
Specifications Temperature Range and Derating In standard installations, the FLEXmax 100 can operate at its full 100-amp capacity at ambient temperatures up to 25°C (77°F). Above this temperature, its output is derated as described below. The values depicted in Figure 52 are examples for a system with a PV input of 220 Vdc. Lower input voltage will improve the controller’s thermal performance. For a nominal 24-volt battery system: At 60°C (140°F), the output is derated to a maximum of 46 Adc.
Specifications Default Settings and Ranges The settings in this table are as shown in the system display.
Specifications Table 12 Mode Setting Menu Item Value Low Battery Voltage Night Light Active Threshold ON Time Hysteresis Time Rapid Shutdown Float Diversion: Relay Active Relative Voltage Hysteresis Hold Delay Diversion: Solid St Relative Voltage Hysteresis Hold Delay Low Batt Disconnect Disconnect Reconnect Disconnect Delay Remote 900-0209-01-00 Rev B 24-volt Default Error Output Auxiliary Output FLEXmax Settings Range Default Range Default 36-volt 48-volt 23.0 Vdc 34.
Specifications NOTES: 64 900-0209-01-00 Rev B
Applications Array Design Sizing Guidelines Below is a list of maximum array wattages for the FLEXmax 100 for various nominal voltage batteries. This should be used for sizing an array. Note that every PV module is different. The specifications for every model should be consulted before designing or assembling a PV array.
Applications Temperature Conditions PV voltages are specified at room temperature but change inversely with ambient temperature changes. Higher temperatures result in lower Voc and Vmp. Lower temperatures result in higher Voc and Vmp. Excessively cold weather can cause the Voc to rise above the array’s rated limit. A poorly-sized array can exceed 300 Voc and damage the controller.
Applications Three-Stage Battery Charging The FLEXmax 100 charge controller is a sophisticated, multi-stage battery charger that uses several regulation stages to allow fast recharging of the battery system while ensuring a long battery life. This process can be used with both sealed and non-sealed batteries. The FLEXmax 100 is a “buck” converter which turns higher PV voltages into the lower charging voltages used by batteries (with correspondingly higher currents).
Applications The duration of the Absorption stage is the user-defined Absorb Time Limit. Once in Absorbing, the internal counter will count until it reaches this limit. (See page 32.) The controller will then exit Absorbing and enter the Float stage. The charger will also also exit Absorbing if the Absorb End Amps setting is reached, regardless of the timer. This resets the timer to zero. (See page 42.) This stage is temperature compensated. (See below.) Float This is the third stage of charging.
Applications The FLEXmax 100 controller, when equipped with the Remote Temperature Sensor (RTS), will compensate for temperature. The RTS is attached to a single battery near the center of the bank. When charging, the RTS will increase or decrease the charge voltage by 5 mV per degree Celsius per battery cell. This setting affects the Absorbing and Float set points. Equalization is not compensated in the FLEXmax 100. There can be side effects to temperature compensation.
Applications Positive-Ground Applications The FLEXmax 100 can be used in a positive-ground system. However, due to internal grounding paths between the controller and other devices, positive grounding allows only certain combinations of devices in the configuration. These combinations are dependent upon whether or not the system is networked together or the devices stand alone. See page 14 for instructions and initial restrictions on positive grounding.
Applications Grid-Interactive Settings When using an OutBack inverter, FLEXmax 100, HUB Communications Manager, and system display, set the Grid-Tie Mode menu to Y in the system display. This mode allows the inverter to manage the charge controller’s Float setting. It ensures the controller always keeps the battery above the sell voltage of the inverter. (See page 44.
Applications Table 15 Terms and Definitions Term Definition Network A set of OutBack devices which communicate on a bus established by the HUB Communications Manager Positive-Ground A wiring system that bonds the positive conductor to ground for safety PWM Pulse-Width Modulation PV Photovoltaic Rapid Shutdown A function allowing emergency responders to quickly place the PV system in a de-energized state; required by NEC 690.
Index A E Absorbing ........................................................... 32, 67 Accessory Terminal Block ........................................ 18 Advanced Generator Start (AGS)....................... 48, 71 AGS ............................ See Advanced Generator Start AIC Rating ................................................................ 16 Applications .............................................................. 65 Array Design ............................................................
Index L LED Indicators.............................................. 29, 30, 31 Charging ............................................ 31, 32, 33, 34 Error .................................................................... 56 Fault .................................................. 34, 38, 55, 57 MATE3s .............................................................. 35 Power Up ............................................................ 26 Status ..........................................
Index U Updating Firmware ............................................. 53, 58 V Vmp.................................................................... 65, 66 Voc ............................................................... 27, 65, 66 Warning Symbol ......................................................... 6 Weather Conditions.................................................. 66 Wiring ....................................................................... 13 Conduit .................................
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