EnerSys OutBack POWER Mojave OGHI8048A Operator's Manual
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EnerSys OutBack POWER Mojave OGHI8048A Operator's Manual

EnerSys OutBack POWER Mojave OGHI8048A Operator's Manual

Grid-hybrid inverter/charger
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Mojave ™ Grid-Hybrid
Inverter/Charger
OGHI8048A
Operator's Manual

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Summary of Contents for EnerSys OutBack POWER Mojave OGHI8048A

  • Page 1 Mojave ™ Grid-Hybrid Inverter/Charger OGHI8048A Operator’s Manual...
  • Page 2 Trademarks Trademarks and logos are the property of Alpha Technologies Services, Inc., EnerSys, and its affiliates unless otherwise noted. Subject to revisions without notice. The IEEE and CSA trademarks are not the property of Alpha Technologies Services, Inc. or EnerSys.

  • Page 3: Table Of Contents

    Table of Contents General Safety ................. 7   Audience ............................7  Symbols Used ..........................7  Symbols Used on the Mojave Inverter .................... 8  Introduction ..................9   Welcome to OutBack Power ......................9  Inverter Functions ......................... 10  Components and Accessories ...................... 11  Battery Bank ..........................
  • Page 4 Table of Contents Generator Tab ............................70   Generator Input............................. 72   Generator Control ..........................74   Automatic Generator Start ....................... 75   Troubleshooting ................79   FAQ .............................. 79  Basic Troubleshooting ........................80  Service Instructions ................. 85   Replacement Kits .......................... 85  Preparatory Steps .............................
  • Page 5 Table of Contents List of Figures Figure 1  Mojave Inverter/Charger ....................9  Figure 2  User Interface ........................ 13  Figure 3  User Interface (Tabs and Views) ................... 14  Figure 4  User Interface (Status Graphics) ................... 15  Figure 5  User Interface (Inverter tab, STATUS view) ..............18  Figure 6 ...
  • Page 6 Table of Contents Figure 37  Measurement Points ..................... 80  Figure 38  Removal of Covers ......................87  Figure 39  Control Board External Attachments ................88  Figure 40  Control Board Connectors ..................... 89  Figure 41  Dismounting Control Board ................... 90  Figure 42  AC Terminals ........................ 91  Figure 43 ...

  • Page 7: General Safety

    Important Safety Instructions General Safety Audience This book provides instructions for the physical installation and wiring of this product. These instructions are for use by qualified personnel who meet all local and governmental code requirements for licensing and training for the installation of electrical power systems with AC and DC voltage up to 600 volts.

  • Page 8: Symbols Used On The Mojave Inverter

    Important Safety Instructions Symbols Used on the Mojave Inverter The symbols shown below mean the following: WARNING: To reduce risk of injury, read all instructions The instructions indicated here include this manual, as well as the Mojave Inverter/Charger Quick Start Guide, and any other pertinent literature. General Safety WARNING: Limitations on Use This equipment is NOT intended for use with life support equipment or other...

  • Page 9: Introduction

    Introduction Welcome to OutBack Power Thank you for purchasing the Mojave™ Grid-Hybrid Inverter/Charger. This product offers a power conversion system between batteries and AC power. This inverter can provide backup power during loss of utility grid, unlike grid-direct (GD) inverters that only convert solar (PV) power to send to the grid.

  • Page 10: Inverter Functions

    Introduction Inverter Functions Battery-to-AC inverting which delivers power to run backup loads and other functions  Split-phase output  Model OGHI8048A can continuously produce up to 8 kVA (33 Aac) AC-coupled interaction  Mojave inverter accepts power on G connection and transfers it to protected L connection ...

  • Page 11: Components And Accessories

    Introduction Components and Accessories IMPORTANT: The Mojave OGHI8048A inverter includes integrated communications and does not require accessories such as a system display. It is not compatible with previous system display products, including MATE-class or MATE3-class system displays. It is not compatible with HUB products or FM-class charge controllers.
  • Page 12 Introduction  OutBack Power supports batteries that have been certified and published for use with this product. (See the Lithium-Chemistry section on page 64.)  Supported batteries are assumed to be new (not repurposed, purchased used, etc), covered under manufacturer’s warranty for the intended application, and fully compliant to all local and national regulatory requirements.

  • Page 13: User Interface

    User Interface Accessing the User Interface (UI) The Mojave inverter’s web-based user interface allows monitoring and programming of all items. It can be accessed using a web browser once a local area network connection is established. The following information assumes local access. For remote access using the OPTICS RE site, see page 28.

  • Page 14: Tabs And Views

    User Interface Tabs and Views The interface features five tabs showing inverter functions. The tabs are Inverter, Battery, Grid, Generator, and Network. When a tab is selected, a solid box will appear around it. The tabs are accessed with either of two views: STATUS and SETTINGS. Two additional views, EVENTS, and ACTIONS, allow access to more details not accessed by the tabs.

  • Page 15: Status View

    User Interface STATUS View The STATUS view provides a simplified graphic of the supported elements in this system, the power flow to each, and other data. Grid NOTE: Loads The labeled icons shown here are the elements making up a complete Inverter Mojave system.
  • Page 16 User Interface Icons:  Grid: The utility grid source on the G terminals. This icon displays grid voltage and frequency. See page 20 for more information, including all Status items below. Icon colors:  Green = grid Status is Connected. Inverter is using grid power. The grid relay is closed. (See page 46.) ...
  • Page 17 User Interface  Battery: The primary DC storage device. This icon displays both state of charge (SoC)% and battery voltage. NOTE: The inverter uses a unique icon if the Mojave battery is in use and a generic battery icon for any other model of battery.

  • Page 18: Inverter Tab

    User Interface Inverter Tab Figure 5 User Interface (Inverter tab, STATUS view) This tab shows basic inverter output information. The first item is inverter Status:  ON: Inverter set to On in ACTIONS. See page 25.  OFF: Inverter set to Off in ACTIONS. ...

  • Page 19: Battery Tab

    User Interface Battery Tab NOTE: If a Mojave ESS battery is in use, this symbol will be displayed. If any other type of battery is in use, this symbol will be displayed. Figure 6 User Interface (Battery tab, STATUS view) This tab shows battery information.
  • Page 20 User Interface Additional items under the Battery tab: Power — The net power in watts (W) being imported from, or delivered to (in charging), the battery. Voltage — The voltage in DC volts (Vdc) measured at the inverter’s internal battery terminals. Current —...

  • Page 21: Grid Tab

    User Interface Grid Tab NOTE: The external current transducer (XCT) fields described in the bullets below will only appear if the XCT is enabled. (See page 43.) The current transducers are placed at the main electrical panel. (See Figure 15 on page 31.) This point is represented by A in this image.

  • Page 22: Generator Tab

    User Interface Generator Tab NOTE: When a generator is in the Status of Connected (see below), the generator and grid icons will switch places. (Compare this image to previous tabs.) Figure 8 User Interface (Generator tab, STATUS view) This tab shows information on the inverter’s connection to an AC generator. This includes the status of automatic generator starting (AGS), if used.
  • Page 23 User Interface Additional items under the Generator tab: Power — The power in watts (W) being imported from the generator. Frequency — The frequency in hertz (Hz) measured at the inverter’s L1 and L2 G terminals. Voltage L1 and Voltage L2 — The voltage in AC volts (Vac) measured at the inverter’s L1 and L2 terminals.

  • Page 24: Network Tab

    User Interface Network Tab This tab shows the information for connection to a personal computer or network. As these settings can be customized (see page 36), not all items may match what is shown here. Wireless — The connection state when using a wireless (“wi-fi”) network connection. ...

  • Page 25: Actions View

    User Interface ACTIONS View This view displays the Action Menu, with various off/on and other commands for basic functions. It does not replace the STATUS, SETTINGS, or EVENTS views, but appears alongside them. NOTE: Clicking on this item a second time, or on the Action Menu heading, does not remove it from ×...

  • Page 26: Settings View

    User Interface SETTINGS View This view allows functions to be changed. Selecting any of the tabs that were already discussed (Inverter, Battery, Grid, Generator, Network) brings up a table with set points related to that topic. This view also depicts a sixth tab, Admin, which permits login for higher-level access. Selecting any tab in this view causes a gray box to appear around it.

  • Page 27: Events View

    User Interface EVENTS View This screen shows a history of all notable changes in Mojave inverter state or status. Event messages are dynamically generated and depend on the particulars of the occurrence. Types of events include the following. Fault history Changes in operating state Input source availability changes Charge state changes...

  • Page 28: Optics Re

    User Interface OPTICS RE OPTICS RE is the web-based remote monitoring and control application for OutBack Power devices, including the Mojave inverter. OPTICS RE displays data in three tier levels. The levels are as follows. Profile: The entity or person that is the owner of the system. ...

  • Page 29: Figure 13 Optics Re Account

    User Interface Figure 13 OPTICS RE Account 3. Create an account to be able to log in. From www.opticsre.com, click Create an Account. See A in Figure 13. 4. Fill in the appropriate account information fields. (See B in Figure 13.) a.
  • Page 30 User Interface NOTES: 900-00275-01-001 Rev A ©2021 OutBack Power. All Rights Reserved.

  • Page 31: Operation

    Operation Connections The Mojave inverter has two sets of AC source connections, which are labeled G and G Two different AC sources can be connected during inverter installation. In addition, it has connections for batteries, which are used both to supply power for operation, and to receive charging.

  • Page 32: Led Indicator

    Operation LED Indicator LED Indicator Figure 16 LED Indicator The Mojave inverter has a single LED indicator to show states of operation. Additional states may be added in the future, using firmware updates, to reflect new features. If the inverter indicates a state not shown here, please refer to the firmware release notes. Alternately, consult an updated revision of this manual from www.outbackpower.com.

  • Page 33: Description Of Inverter Operations

    Operation Description of Inverter Operations Most of the operations and functions can be programmed from the user interface SETTINGS view. This allows customization or fine tuning of inverter performance. Some of the inverter’s operations occur automatically. Others are conditional or must be enabled manually before they will operate. This section is organized using the six tabs available under the SETTINGS view: Inverter, Grid, Generator, Battery, Network, and Admin.

  • Page 34: Admin Tab

    Operation Admin Tab Figure 18 Admin Tab (SETTINGS View) The page displayed by this tab allows login for greater access to settings. To log in, select the User level, enter the Password, and press Submit. (See Figure 18.) UserName — Range: Owner, Installer, Admin. Default: Owner.

  • Page 35: Change Password

    Operation After the initial login, the screen will change as shown in Figure 20. Three new options are offered. Change Password This item will change the password for the current access level. Enter the new password under New, then re-enter the new password under Confirm.

  • Page 36: Network Tab

    Operation Network Tab Figure 21 Network Tab (SETTINGS View) The items under this tab allow connection to a personal computer or network (wired or wireless). If DHCP is used with a network device such as router, modem, or switch, then many of these values will be assigned from the network device.

  • Page 37: Inverter Tab

    Operation Inverter Tab The items under this tab affect many of the Mojave inverter’s basic functions. Interactions with utility grid, generator, and battery charging are set under other tabs. The items presented here are described on the designated pages. They may not appear in the same order as shown below.
  • Page 38 Operation Inverting This is the Mojave inverter’s primary function. The inverter converts DC voltage from batteries into AC voltage that is usable by AC loads. It will continue to do this as long as the batteries have sufficient energy. The inverter’s design uses a transformer and high-frequency H-Bridge FET modules to achieve the required high-wattage output.

  • Page 39: Ac Coupling

    Operation AC Coupling NOTE: This function is performed automatically when the conditions are met as described below. It has no adjustable settings. Many inverter products are “grid-direct” (GD), converting PV power to AC power and sending it directly to the utility grid without the use of batteries. These products have no backup capability. In systems with an existing GD inverter, the Mojave inverter can be added to “couple”...

  • Page 40: Time Of Use (Tou)

    Operation Time of Use (ToU) The Mojave inverter can choose to run the protected loads using either grid or battery power based on day and time. This permits the system to take advantage of varying utility rates. ToU in this inverter is referred to as “simplified”.

  • Page 41: Figure 24 Tou With Ac Coupling

    Operation AC coupling (see page 39) may be used with ToU. In the example shown in Figure 24, the Mojave inverter is used in conjunction with a GD inverter (with a PV array) on the protected loads panel. The utility company’s peak rate occurs between 5 PM and 8 PM. The user sets Simplified ToU to Enable.

  • Page 42: Rapid Shutdown (Rsd)

    Operation Rapid Shutdown (RSD) In an emergency, a responder may need to quickly place the system in a de-energized state. The auxiliary (A ) terminal block has terminals designed to receive signals from OutBack Power’s RSI (Rapid Shutdown Initiator) or a similar rapid shutdown device. 12V G 12V+ Relay 1...

  • Page 43: Grid Tab

    Operation Grid Tab The items under this tab affect the Mojave inverter’s interactions with the utility grid. The items presented here are described on the designated pages. They may not appear in the same order as shown below. Grid Profile — Range: IEEE 1547-2003, IEEE 1547-2018, CA Rule 21, CA Rule 21 2022, HECO 14H, ISO NE, PREPA.
  • Page 44 Operation HF1 Hz (Hz) — Range: 60.02 to 66 Certified Range: 60.1 to 66 Default: 60.50 HF1 time (s) — Range: 0.16 to 1000 Certified Range: 0.16 to 1000 Default: 0.16 Enter service — Range: Disabled or Enabled Default: Enabled Enter service HV (pu) —...
  • Page 45 Operation Grid Input When the Mojave inverter’s G terminals are connected to a grid-quality AC source and the Grid Input command is set to Use, the inverter will synchronize itself with the grid source and connect to it. Its grid relay will engage, linking the G terminals directly with the L .
  • Page 46 Operation Grid Relay The Mojave inverter uses mechanical relays to connect the inverter, AC sources, and loads. The and G terminals have separate, independent relays. These are not interchangeable. Each input has a separate set of acceptance criteria (also known as “enter service” criteria). (See the Generator tab on page 70.) Until the grid relay energizes, the G terminals are electrically isolated from L...
  • Page 47 Operation NOTES: The charger cannot exceed the Import limit (W) setting, even if Charge from grid limit  is set higher than Import limit (W).  The inverter gives priority to any loads. The inverter cannot restrict the amount of power sent to the loads.
  • Page 48 Operation NOTES: 900-00275-01-001 Rev A ©2021 OutBack Power. All Rights Reserved.

  • Page 49: Battery Tab

    Operation Battery Tab The items under this tab affect the Mojave inverter’s interactions with the battery bank, particularly battery charging. Many items will vary with the battery type. There are no default settings that apply to all batteries. Each Battery Model selection pre-loads the other items with default settings that have been optimized for that particular battery type.
  • Page 50 Operation The exit (taper) current level for the second stage of charging. See pages 57 and 67. Refloat voltage (V)— Range: 42 to 64. Default: 50.00 The trigger voltage to re-start a maintenance charge. See page 58. Float charge mode — Range: Disabled, Timed, Continuous. Default: Timed The command that permits the third stage of charging to operate.

  • Page 51: Battery Usage

    Battery Selection The Mojave inverter can auto-populate the specifications of select OutBack Power/EnerSys and third-party battery models. If one of these models is in use, it can be selected under Battery Model. This item shows a list of supported batteries. Select the most applicable type.
  • Page 52 Operation Low and High Battery Limits Max SoC (%): After reaching maximum SoC (state of charge, the charger turns off. Setting it to less than 100% could result in the battery becoming undercharged. See page 53 for more discussion of SoC. Min SoC (%): This selection is the lowest operating point for all functions that discharge the batteries.

  • Page 53: Battery Charging

    Operation Battery Charging IMPORTANT: Battery charger settings need to be correct for a given battery type. Always follow battery manufacturer recommendations. Making incorrect settings, or leaving them at factory default settings, may cause the batteries to be undercharged or overcharged. State of Charge (SoC) Battery capacity is measured in ampere-hours or amp-hours (Ah), a measurement of current over time.

  • Page 54: Charge Cycle

    Operation Charge Cycle Battery charging requirements will vary with battery chemistry. The Mojave inverter uses one of several different charge cycles. Selecting a Battery Model on page 51 will set up a charge cycle that has been pre-programed for that battery. Most cycles operate in a combination of progression of constant-current and constant-voltage steps.

  • Page 55: Figure 27 Charging Stages

    Operation Lead-Chemistry Batteries (Three-Stage Charging) When selecting a Battery Model for a lead-acid, AGM, or similar battery, this cycle is generally used. The three stages of this charge cycle are Bulk, Absorption, and Float. These stages are introduced in Figure 27 and described beginning below. The following items describe the operation and intended use for each individual charging step as shown in the graphs.

  • Page 56: Figure 28  Absorption Stage

    Operation Bulk Stage This is the first stage in the cycle. It is a constant-current stage which drives the battery voltage up. Bulk typically leaves the batteries at 75% to 90% of their capacity, depending on the battery type, the charger setting, and other conditions. Displayed: Status message: Bulk Voltage Used: Absorb voltage (V) setting.
  • Page 57 Operation Absorption Stage This is a timed constant-voltage stage. It uses only enough current to maintain the Absorb voltage (usually requiring a tapering current). It "tops off " the batteries at effectively 100% SoC. Displayed: Status message: Absorption Voltage Used: Absorb voltage (V) setting. For the three-stage cycle to proceed normally, this setting should be kept higher than the Float voltage (V) and Rebulk voltage (V) settings.
  • Page 58 Operation Float Stage This is a timed constant-voltage stage. It is sometimes known as maintenance charging. Float stage balances the batteries’ tendency to self-discharge (as well as balancing the draw of any other DC loads). It maintains the batteries at 100% of capacity. Displayed: Status message: Float Voltage Used: Float voltage (V) setting.
  • Page 59 Operation Refloat The charger re-enters Float stage with constant-current charging to maintain the batteries. Displayed: Status message: Float. Voltage Used: Float voltage (V) setting. This step may also be used to return to an interrupted Float stage. Entering Float: Upon reaching the Float voltage (V) setting, the charger will behave as on page 58.
  • Page 60 Operation Cycle 1 Remainder of Cycle 1 Cycle 2 Voltage AC Loss Absorption Float Float Refloat Refloat Idle Float (full) Idle (end) (end) (start) Absorption Set Point Float Set Point Refloat Set Point Float Float timer runs Float timer Float timer Absorption timer begins...
  • Page 61 Operation Cycle 3 Remainder of Cycle 3 Cycle 4 AC Loss AC Loss AC Loss Bulk Abs. Absorption Float Bulk Absorption Float Absorption Set Point Float Set Point Refloat Set Point Rebulk Set Point Absorption Abs. Absorption Float Absorption Absorption Float timer timer resets timer...

  • Page 62: Figure 31 Equalization

    Operation Equalization Figure 31 Equalization Equalization is a controlled overcharge that is part of regular battery maintenance. Equalization brings the batteries to a much higher voltage than usual and maintains this high voltage for a period of time. This has the result of removing inert lead sulfate compounds from the battery plates. It also reduces stratification by circulating the electrolyte.
  • Page 63 Operation Equalization is normally performed only on flooded lead-acid batteries. The schedule for equalization varies with battery use and type. If performed correctly, this process can extend battery life by a considerable amount. This function is not available for battery types that use two-stage charging or a BMS. CAUTION: Battery Damage ...

  • Page 64: Lithium-Chemistry Batteries (Bms And Two-Stage Charging)

    Operation Lithium-Chemistry Batteries (BMS and Two-Stage Charging) CAUTION: Battery Damage  OutBack Power does not approve custom applications, including installation of lithium-ion batteries that have not been published as installable with OutBack Power equipment. Supported batteries are assumed to be new (not repurposed, purchased used, etc), covered under the manufacturer’s warranty for the intended application, and fully compliant to all local and national regulatory requirements.

  • Page 65: Figure 32 Communications Ports

    Operation CAUTION: Battery Damage Only use lithium-ion batteries specifically supported by OutBack Power. See the list of supported batteries at the link on the previous page. Even batteries equipped with CANBUS connections may not be supported by the Mojave inverter/charger. If the battery settings do not automatically configure upon connection, stop and verify compatibility and installation instructions.

  • Page 66: Figure 33 Charging Stages

    Operation Two-Stage Charging When selecting a Battery Model that does not require continuous maintenance, this cycle is generally used. The two stages of this charge cycle are Bulk and Absorption. These stages are introduced in Figure 33 and described beginning below. The following items describe the operation and intended use for each individual charging step as shown in the graphs.

  • Page 67: Figure 34 Absorption Stage

    Operation Bulk Stage This is the first stage in the cycle. It is a constant-current stage which drives the battery voltage up. Bulk typically leaves the batteries at 75% to 90% of their capacity, depending on the battery type, the exact charger setting, and other conditions. Displayed: Status message: Bulk Voltage Used: Absorb voltage (V) setting.
  • Page 68 Operation Time limit: Absorb time (m) setting. The timer counts down from the inception of Absorption stage until it reaches zero. The time remaining can be viewed in Figure The charger may not always run through the timer’s full duration. The timer may expire early if the starting time was left over from a previous cycle.
  • Page 69 Operation Absorption Timer Time limit: Absorb time (m) setting. This is reset to its maximum amount whenever the battery voltage decreases to the Rebulk voltage (V) setting. The reset occurs immediately, regardless of the duration spent below this voltage. If the battery voltage does not decrease to the Rebulk point, the Absorb time (m) setting will not reset.

  • Page 70: Generator Tab

    Operation Generator Tab The items under this tab affect the Mojave inverter’s interactions with an AC generator, particularly automatic starting. The items presented here are described on the designated pages. They may not appear in the same order as shown below. NOTE : Although SYSTEM TIME on page 15 uses a 24-hour clock format, settable times of day in this menu are formatted using a 12-hour clock.
  • Page 71 Operation Start on high load (V) — Range: Disabled or Enabled. Default: Disabled. This item allows AGS to start the generator due to a high inverter load. See page 77.  Start kW (kW) — Range: 0 to 8. Default: 5.0. The load size above which AGS will start the generator.

  • Page 72: Generator Input

    Operation Generator Usage The Mojave inverter can connect to a generator to charge batteries and run loads when the utility grid is not available. The generator must be 120/240 Vac (three-wire or “split-phase”) and 60 Hz. It cannot accept single-phase (two wire 120 Vac, 230 Vac, or 240 Vac) or three-phase input. The generator can be started with a manual command or programmed to run automatically with the automatic generator start (AGS) function.
  • Page 73 Operation If the loads exceed Generator output rating (kVA), the inverter will support the loads by adding battery power to the power used from the generator. It will discharge the batteries at a level up to the Max Discharge Current (A) setting on page 53. This operation can continue until the batteries reach the Minimum SoC setting on page 52.

  • Page 74: Generator Control

    Operation 12V G 12V+ Relay 1 Relay 2 NPUT NPUT UTPUT UTPUT CT 1(–) 10 CT 1(+) CT 2(–) 12 11 E CT 2(+) Figure 36 AUX terminals Generator Control The Generator item in the Action Menu (see page 25) will manually start or stop a generator when set to On or Off.

  • Page 75: Automatic Generator Start

    Operation To Enable the Generator for Operation: 1. Connect the generator’s AC wiring to the inverter’s G L1 and L2 input terminals. 2. Connect the generator’s control wiring to either the A or the A 12V terminals. ELAY  Connect any additional hardware needed for starting the generator. ...
  • Page 76 Operation If the power becomes unacceptable at any point (including while warming up), the inverter will open the generator relay and display a status of Error. (Info will indicate the specific problem.) It will not shut off the generator in the expectation that the power will return to normal. If no power is received after three minutes of attempting the start sequence, the inverter will cease any starting attempts.
  • Page 77 Operation Load Start The inverter will start the generator when running a high load. It will stop the generator when the load decreases. When the L terminals register an amount greater than Start kW for the High load start delay time, the generator will start.

  • Page 78: Table 2  Start And Stop Reasons

    Operation Start/Stop Table This table summarizes the various start and stop conditions that apply to both AGS and manual control. Table 2 Start and Stop Reasons Stop Reasons Full START Charge Generator Below Quiet Exercise Time Generator Run During Stop SOC% REASONS Cycle Stop kW...

  • Page 79: Troubleshooting

    Troubleshooting Table 3 Frequently Asked Questions Question Answer The default password for all access levels (Owner, What is the default password? Installer, Admin) consists of the last eight digits of the unit’s serial number. See page 34. What is the inverter’s IP address? The IP address is 192.168.2.2.

  • Page 80: Basic Troubleshooting

    Troubleshooting Basic Troubleshooting If the main LED indicator turns red or an error is shown by another means, check the Status view. If any errors are present, one icon will turn red to indicate the general location of the error. Only one icon can be red at a time.
  • Page 81 Troubleshooting Table 4 Troubleshooting Symptom Possible LED Indicator Possible Remedy Cause or Icon Use a DC voltmeter to check the voltage directly on the DC terminals. If not present, the problem is external. If present, the No DC voltage inverter could be damaged. ...
  • Page 82 Troubleshooting Table 4 Troubleshooting Possible LED Indicator Symptom Possible Remedy Cause or Icon  Gray See “Will not connect to the AC source” listings. source icon No AC input (grid or generator)  Gray Inverter set to In the ACTIONS view, if Grid or Gen is set to Use but Inverter is inverter icon set to Off, inverter will not charge.
  • Page 83 Troubleshooting Table 4 Troubleshooting Symptom Possible LED Indicator Possible Remedy Cause or Icon Grid power does not meet  Red/green LED Verify grid voltage and frequency. Determine if they are within requirements; the inverter’s approved limits. If not, the inverter is operating ...
  • Page 84 Troubleshooting Table 4 Troubleshooting Possible LED Indicator Symptom Possible Remedy Cause or Icon The inverter features a small but noticeable response time Loads sensitive during transfer. Certain loads (such as highly sensitive to inverter’s  N/A computers) may not respond well. An uninterruptible power transfer time supply may be needed.

  • Page 85: Service Instructions

    Service Instructions CAUTION: Equipment Damage  These instructions are for use by qualified personnel who meet all local and governmental code requirements for licensing and training for the installation of electrical power systems with AC and DC voltage up to 600 volts. ...

  • Page 86: Preparatory Steps

    Service Preparatory Steps Follow the procedures which are applicable to the system. If any elements are not present, ignore those procedures. Tools Needed Digital multimeter (DMM) 5 mm hex (Allen) wrench #1 Phillips screwdriver #2 Phillips screwdriver Torque driver Disconnection Power down and disconnect all power sources from the inverter prior to performing any service.
  • Page 87 Service Removal of Covers Figure 38 Removal of Covers To remove the covers: 1. Using a 5 mm hex (Allen) wrench, remove 4 screws from the cover. Remove the cover. See in Figure 38. 2. Open the wiring compartment door by pressing the latch at B. The door swings to the right. Remove the door by pulling inward on the pins at the corners of the door.

  • Page 88: Replacement Of Control Board

    Service Replacement of Control Board To replace the control board (SPARE-501): 1. Remove the A terminal block from its socket. See in Figure 39. Use the black levers on the sides of the block to help remove it. 2. Using a #1 Phillips screwdriver, remove the securing screw for the control board. See in Figure 39.
  • Page 89 Service 3. On the control board, remove the following connectors (see Figure 40):  RP-SMA connector (D) for the antenna wire.  Ribbon cable (E) for the AC board.  5-pin connector (F) for the current transducer.  2-pin connector (G) for the power modules. Figure 40 Control Board Connectors 4.
  • Page 90 Service 5. Carefully remove the control board, pulling toward the front of the inverter, as shown in Figure Figure 41 Dismounting Control Board 6. Replace the control board. Perform all previous steps in reverse order.  Insert the control board. Replace the screws H.

  • Page 91: Replacement Of Ac Board

    Service Replacement of AC Board To replace the AC board (SPARE-502): 1. Before beginning, remove the RP-SMA cable for the antenna wire. See in Figure 42. Note that this is not a required step for board replacement, but will make access to the board easier. 2.
  • Page 92 Service Unclip all wires from the transformer terminals. See in Figure 43. IMPORTANT: Mark or note the wire positions so that they can be reinstalled correctly. The four wires  are marked with numbers 5 through 8. They are installed in the positions shown in Figure 43.
  • Page 93 Service 3. On the AC board, remove the following connectors (see Figure 44):  Ribbon cable (D) for the control board.  2-pin connector (E) for the transformer. Figure 44 AC Board Connectors 900-00275-01-001 Rev A...
  • Page 94 Service 4. Using a #2 Phillips screwdriver, remove 9 machine screws F that secure the AC board in place. See Figure 45. 5. Carefully remove the AC board. Avoid gripping the board by the large chokes (coils). If necessary, the plastic relay housings such as can be used to hold the board.

  • Page 95: Replacement Of Fan Module

    Service Replacement of Fan Module To replace the fan module (SPARE-508): 1. Remove the two fan plugs at the top of the carrier board. See in the Figure 46 inset. If necessary, loosen the power module cage cover at to allow access to the plugs. 2.

  • Page 96: Replacement Of Power Module

    Service Replacement of Power Module To replace either of the two power modules (SPARE-506): 1. Remove the 5-conductor current transducer plug from the control board. See in Figure 47. 2. Remove the 2-pin voltage sense connector. See in Figure 47. Figure 47 Control Board Connectors 3.
  • Page 97 Service 6. Using a 5 mm hex (Allen) wrench, remove bolts for bus bars. See all items in Figure 49. Remove the two bus bars I. 7. Remove the power module to be replaced. Pull upward to unsocket the module. See in Figure 49.

  • Page 98: Replacement Of Carrier Board

    Service Replacement of Carrier Board To replace the carrier board (SPARE-504): 1. Follow all steps to remove the control board. See the procedure Replacement of Control Board on page 88. 2. Remove the common-mode choke A. See Figure 50 for all items. ...
  • Page 99 Service 5. Remove the two fan plugs at the top of the carrier board F. See in Figure 51. If necessary, see the Figure 46 inset. 6. Using a #2 Phillips screwdriver, remove the screws at the top and bottom of the carrier board. See Figure 51.

  • Page 100: Preventative Maintenance

    Service Preventative Maintenance The Mojave inverter requires almost no regular maintenance. However, OutBack Power recommends the following items on a periodic basis: Vacuum or otherwise clean all vents on a regular basis. Check all electrical connections periodically for tightness using the torque values listed in the Mojave Inverter/Charger Quick Start Guide.

  • Page 101: Specifications

    Specifications Electrical Specifications Table 5 Electrical Specifications for Mojave Inverter Specification Value Grid-tied 7680 VA Continuous output power at 40°C Off-grid 8000 VA Grid-tied 32 Aac Continuous AC output current Off-grid 34 Aac AC output voltage 120/240 Vac AC output frequency 60 Hz AC output type Split-phase...

  • Page 102: Mechanical Specifications

    Specifications Table 5 Electrical Specifications for Mojave Inverter Specification Value Battery Charger Maximum DC Output 170 Adc DC Output Voltage Range (charging) 40 to 64 Vdc Auxiliary Output 0.8 Adc at 12 Vdc Auxiliary Relay 4 A at 250 Vac or 30 Vdc Included with product 8’...

  • Page 103: Wireless Specifications

    Specifications Overvoltage Category (DC Input) Wireless Specifications Table 8 Wireless Specifications for Mojave Inverter Specification Value 2.4 GHz 2,4 GHz Wireless Standard WiFi 4 (802.11n; also supports 802.11b/g) Speed Up to 150 Mbps Regulatory Specifications Listings This product carries a listing report by UL and is listed to the following standards: UL®...

  • Page 104: Grid Protection Settings (All Profiles)

    Specifications Grid Protection Settings (All Profiles) Tables Table 9 and Table 10 contain the default settings for all grid profiles (see page 43). The ranges of adjustment are also included for reference. NOTE: IEEE 1547-2018 default settings are used in grid profiles where the utility has set no requirement.

  • Page 105: Table 9 Grid Protection Settings (Ieee 1547 And Ca Rule 21)

    Specifications Table 9 Grid Protection Settings (IEEE 1547 and CA Rule 21) Range of Certified IEEE Adjustment Range IEEE 1547-2003 1547-2018 CA Rule 21 Cat III/B Parameter LV3 time (s) 0.08 50.00 0.10 50.00 1.50 LV momentary 0.000 0.980 0.500 0.500 voltage (pu) LV momentary time (s)
  • Page 106 Specifications Table 9 Grid Protection Settings (IEEE 1547 and CA Rule 21) Range of Certified IEEE Adjustment Range IEEE 1547-2003 1547-2018 CA Rule 21 Cat III/B Parameter Watt/VAr 6 reactive –0.500 0.500 –0.440 –0.440 power (pu) Enter service Disabled Enabled Enabled Enabled Enabled...

  • Page 107: Table 10 Grid Protection Settings (Heco And Iso-Ne)

    Specifications Table 10 Grid Protection Settings (HECO and ISO-NE) Range of Certified Adjustment Range HECO 14H-2018 ISO NE-2018 ISO NE-2021 Parameter Volt/VAr Disabled Enabled Enabled Disabled Disabled Volt/VAr Vref (pu) 0.950 1.050 Volt/Var Vref Auto Disabled Enabled Disabled Disabled Disabled Volt/VAr auto vref 5000 response time (s)
  • Page 108 Specifications Table 10 Grid Protection Settings (HECO and ISO-NE) Range of Certified Adjustment Range HECO 14H-2018 ISO NE-2018 ISO NE-2021 Parameter HF1 Hz (Hz) 60.02 66.00 60.1 66.00 63.00 61.20 61.20 HF1 time (s) 0.16 1000.00 0.16 1000.00 21.00 HF2 Hz (Hz) 60.02 66.00 60.1...
  • Page 109 Specifications Table 10 Grid Protection Settings (HECO and ISO-NE) Range of Certified Adjustment Range HECO 14H-2018 ISO NE-2018 ISO NE-2021 Parameter PF export Disabled Enabled Disabled Enabled Enabled PF import Disabled Enabled Disabled Enabled Enabled Export limit Disabled Enabled Disabled Disabled Disabled Export limit (pu)
  • Page 110 Specifications NOTES: 900-00275-01-001 Rev A ©2021 OutBack Power. All Rights Reserved.

  • Page 111: Index

    Index Current ............53 Efficiency ............53   Equalization ............ 62 Float ............... 58 Absorption Stage ........57, 67, 69 Idle .......... 55, 58, 59, 66, 68 AC Coupling ........9, 10, 39, 41 New Bulk ..........60, 69 AC Test Points ............ 80 Rebulk ..........
  • Page 112 Index Generator Tab Refloat ..............60 SETTINGS View ..........70 Regulatory ............103 STATUS View ..........22 Relay Generator Type ........... 72 Generator ............73 Grid Acceptance ..........45 Grid ..............46 Grid Protection ......43, 45, 104, 107 Remote Temperature Sensor (RTS) ....63 Grid Tab Replacement of SETTINGS View ..........
  • Page 113 Index SETTINGS ......... 14, 26, 33   STATUS ........... 14, 15 UL1741 ............10, 103 User Interface (UI) ......... 13, 14   Warning Symbol ..........7, 8   View   ACTIONS ..........14, 25 EVENTS ............ 14, 27 XCT ........... 11, 21, 31, 43 900-00275-01-001 Rev A...
  • Page 114 Index This page intentionally left blank. 900-00275-01-001 Rev A ©2021 OutBack Power. All Rights Reserved.
  • Page 115 Index This page intentionally left blank. 900-00275-01-001 Rev A...
  • Page 116 Masters of the Off-Grid.™ First Choice for the New Grid. 3767 Alpha Way Bellingham, WA 98226 USA 900-00275-01-001 Rev A...

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