XW_Operation.book Page i Wednesday, August 12, 2015 2:39 PM Conext™ XW Inverter/Charger Conext XW+ 5548 NA Conext XW+ 6848 NA Owner’s Guide 975-0240-01-01 Revision F July 2015 solar.schneider-electric.com www.schneider-electric.
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XW_Operation.book Page i Wednesday, August 12, 2015 2:39 PM Conext™ XW Inverter/Charger Owner’s Guide solar.schneider-electric.
XW_Operation.book Page ii Wednesday, August 12, 2015 2:39 PM Copyright and Contact Copyright © 2007-2015 Schneider Electric. All Rights Reserved. All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies.
XW_Operation.book Page iii Wednesday, August 12, 2015 2:39 PM About This Guide Purpose The purpose of this Owner’s Guide is to provide the information and procedures necessary for configuring, operating, maintaining, and troubleshooting the Schneider Electric Conext XW+ Inverter/Charger. Scope This Guide includes information about monitoring and configuring the Conext XW+. The Guide provides guidelines, detailed setup information, and information about operating and troubleshooting the unit.
XW_Operation.book Page iv Wednesday, August 12, 2015 2:39 PM About This Guide Chapter 1, “Introduction”, describes the operational features of the Conext XW+ Inverter/Charger. Chapter 2, “Monitoring Operation”, contains information about monitoring Conext XW+ Inverter/Charger operation using the inverter information panel or the Conext System Control Panel. Chapter 3, “Configuration” explains how to navigate through the Conext System Control Panel menus and configure the Conext XW+ Inverter/Charger.
XW_Operation.book Page v Wednesday, August 12, 2015 2:39 PM Important Safety Instructions READ AND SAVE THESE INSTRUCTIONS - DO NOT DISCARD This guide contains important safety instructions for the Conext XW+ Inverter/ Charger that must be followed during operation and troubleshooting. Read and keep this Owner’s Guide for future reference. Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it.
XW_Operation.book Page vi Wednesday, August 12, 2015 2:39 PM Safety Safety Information 1. Before using the inverter, read all instructions and cautionary markings on the unit, the batteries, and all appropriate sections of this manual. 2. Use of accessories not recommended or sold by the manufacturer may result in a risk of fire, electric shock, or injury to persons. 3. The inverter is designed to be permanently connected to your AC and DC electrical systems.
XW_Operation.book Page vii Wednesday, August 12, 2015 2:39 PM Safety DANGER HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH • Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E or CSA Z462. • This equipment must only be installed and serviced by qualified electrical personnel. • Never operate energized with covers removed • Energized from multiple sources.
XW_Operation.book Page viii Wednesday, August 12, 2015 2:39 PM Safety Limitations on Use WARNING LIMITATIONS ON USE The Conext XW+ Inverter/Charger is not intended for use in connection with life support systems or other medical equipment or devices. Failure to follow these instructions can result in death or serious injury. Explosive Gas Precautions WARNING EXPLOSION HAZARD This equipment is not ignition protected.
XW_Operation.book Page ix Wednesday, August 12, 2015 2:39 PM Safety FCC Information to the User This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM 1 Introduction Chapter 1, “Introduction”, describes the operational features of the Conext XW+ Inverter/Charger.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Introduction Features The Conext XW+ is a modular building block sine-wave inverter/charger that can be used for residential and commercial battery based off-grid, grid backup, and grid interactive applications. The Conext XW+ is a self-contained DC to AC inverter, battery charger, and integrated AC transfer switch. It is configurable in a hybrid system to operate with generators and renewable energy sources.
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XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Introduction The Conext XW+ has an internal automatic transfer switch (K1, K2) which allows either AC1 or AC2 to be connected to the inverter input, but not both at the same time (See Figure 1-1, “Connection Points and Major Power Conversion Components of Conext XW+ ” on page 1–4). This allows shared AC energy during charging or to directly pass through from AC1, or AC2, to AC Out.
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XW_Operation.book Page 7 Wednesday, August 12, 2015 2:39 PM Operation Surge Performance Unlike many other inverters, the Conext XW+ helps stop voltage from sagging dramatically during surge conditions. The Conext XW+ handles surges of over twice its rated output power with only a minimal drop in output voltage for limited periods of time.
XW_Operation.book Page 8 Wednesday, August 12, 2015 2:39 PM Introduction AC Coupling Off-grid AC Coupled system architecture is often used to create a stand-alone grid. Commonly this means that PV inverters are connected to the output of a battery-based inverter/charger putting both on the same AC bus along with the AC loads. In this scenario, the battery powered inverter charger provides the necessary frequency and voltage to enable the PV inverter to produce power.
XW_Operation.book Page 9 Wednesday, August 12, 2015 2:39 PM Operation Further details about AC Coupling can be found in the document AC Coupling of Inverters Solutions Guide (975-0240-01-01) available at solar.schneider-electric.com. Multi-unit Operation Up to three Conext XW+ units can be installed together in a single phase configuration with the Conext PDP (Power Distribution Panel).
XW_Operation.book Page 10 Wednesday, August 12, 2015 2:39 PM Introduction AC Transfer Multiple Conext XW+ units monitor each other to determine the quality of AC input. If AC input is deemed to be bad by any of the paralleled units, no transfer to AC Out occurs and the AC LED continues to flash on each unit’s information panel until the AC is qualified by all. If the system was in pass-through and AC fails on any unit, all units transfer to invert simultaneously.
XW_Operation.book Page 11 Wednesday, August 12, 2015 2:39 PM Monitoring the Conext XW+ Monitoring the Conext XW+ Operation of the Conext XW+ can be monitored using the factory-installed inverter information panel or the optional Conext System Control Panel and ComBox. To configure the Conext XW+, the Conext System Control Panel or ComBox must be used.
XW_Operation.book Page 12 Wednesday, August 12, 2015 2:39 PM Introduction Conext System Control Panel The Conext System Control Panel (Conext SCP) or Conext ComBox is required for configuring the Conext XW+ and other Xanbus-enabled system components. The Conext SCP features: • A liquid crystal display which provides graphics and text describing real time operation and status information. • LED event and warning indicator. • Internal clock which is used to control time-dependent Conext XW+ functions.
XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM 2 Monitoring Operation Chapter 2, “Monitoring Operation”, contains information about monitoring Conext XW+ Inverter/Charger operation using the inverter information panel or the Conext System Control Panel.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Monitoring Operation with the Inverter Information Panel The inverter information panel on each Conext XW+ monitors a single Conext XW+. The Conext XW+ information panel displays basic information and performs start up, shut down, equalization and standby functions. LEDs on the information panel indicate AC input status, Conext XW+ status, battery condition, and charging and equalization status.
XW_Operation.book Page 3 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Inverter Information Panel When one AC input LED is on and the other AC input LED is flashing, AC input is present on both AC1 and AC2. However, the Conext XW+ can qualify and receive AC input from only one source at a time. The qualified source is represented by the steadily lit LED. When two sources of AC input are present, the Conext XW+ uses the source selected under AC Priority in the AC Settings menu.
XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Monitoring Charger Status The green LED labelled “A” indicates the Conext XW+ is charging the battery bank. When this LED is on, the numeric display screen shows battery charging current in amps. Symbol LED On LED Flashing LED Off The Conext XW+ is charging the battery bank. The numeric display screen shows battery charging current in amps. AC coupled charging is occurringa. The Conext XW+ is not in charge mode.
XW_Operation.book Page 5 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Inverter Information Panel Symbol LED On LED Flashing The Conext XW+ has a fault and has stopped charging or inverting. The LED also turns on steadily if the unit has both a fault and a warning. The Conext XW+ has a warning. A warning may escalate to a fault if the warning condition does not go away.
XW_Operation.book Page 6 Wednesday, August 12, 2015 2:39 PM Monitoring Operation WARNING BATTERY TYPE AND SETUP HAZARDS Incorrect battery configurations or settings for battery types can lead to dangerously high battery temperature, fire and explosion. To avoid damaging your batteries during charging or equalization, and to minimize the risk of fire or explosion consult battery manufacturer's documentation before setting battery parameters and follow the battery manufacturer's recommended settings.
XW_Operation.book Page 7 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Inverter Information Panel Using Startup/Shutdown/Standby Modes Startup/Shutdown control When the Conext XW+ is operating, pressing and holding the STARTUP/SHUTDOWN button for five seconds shuts down the unit. To return the unit to its previous operating state, press the STARTUP/SHUTDOWN button again. While the Conext XW+ is turning off, the other inverter information panel buttons stop working.
XW_Operation.book Page 8 Wednesday, August 12, 2015 2:39 PM Monitoring Operation In a multiple-unit installation, when a slave Conext XW+ is shut down, other Conext XW+ units continue to supply Xanbus network power and the Conext AGS and Conext SCP continue to operate. Monitoring Battery Level When the Conext XW+ is inverting, the row of five LEDs indicates the approximate available SOC (State of Charge) of the batteries connected to the system. This capacity reading is based on battery voltage.
XW_Operation.book Page 9 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Inverter Information Panel 975-0240-01-01 • when the Conext XW+ is in Search mode. See “Using Search Mode” on page 3–9. • when the STARTUP/SHUTDOWN button is pressed and held for five seconds. is displayed briefly before the unit turns off.
XW_Operation.book Page 10 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Monitoring Operation with the Conext SCP The Conext System Control Panel (Conext SCP) provides remote configuration and monitoring capability for the Conext XW+ and all other Xanbus-enabled devices in the network. You can monitor Conext XW+ operation on the Conext SCP using the: • System Status screen (see page 2–13) • Conext XW+ Home screen (see page 2–14) • Conext XW+ Meters Menu (see page 2–17).
XW_Operation.book Page 11 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Conext SCP Using the Standby Button The Standby button has two functions. The Standby button can disable inverting and charging for the Conext XW+ units in the system or when pressed simultaneously with the Exit button, can put the entire system into Standby mode. Pressing the Standby button produces the same result as disabling Invert and AC Charge in the System Settings menu.
XW_Operation.book Page 12 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Appears for a few seconds after the system starts up or when the system has been reset. Startup Screen System Status System Status Screen Select Device Press Enter to view Select Device menu. Select Device Screen Select device from list and press Enter to view Device Setup menu. XW+ 6848:Home Conext XW Home Screen Device 2:Home Device 2 Home Screen Press Enter from a Device Home screen to view the Device Setup menu.
XW_Operation.book Page 13 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Conext SCP The Conext XW+ Home screen displays status information for the Conext XW+. The screen appearance varies with the status of the Conext XW+ (standby, inverting, etc.) For more information, see “Reading the Conext XW+ Home Screen” on page 2–14. To display the Conext XW+ Home screen: • While viewing the System Status screen, press the down arrow key.
XW_Operation.book Page 14 Wednesday, August 12, 2015 2:39 PM Monitoring Operation • Qualified AC source (if applicable) and total power to and from the source. • Battery voltage and capacity level. • Net battery input or output current. • Total inverter loading. • Time and date. System Status 20.4A 53.
XW_Operation.book Page 15 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Conext SCP Top Line: Device name and number XW+ 6848 00:Home -26.4A setup 0.0V Invert 51.9V 1250W 0W Line 1: Conext XW+ status Line 2: Battery current (in + or out -) and voltage (Battery current is negative when selling. Amps * Volts = Total Power Sold) system Line 3: Power supplied to loads Line 4: AC in status Setup arrow indicates the Enter button.
XW_Operation.book Page 16 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Table 2-1 Conext XW+ Home Screen States Conext XW+ Status Displayed When... CHG Finish The Conext XW+ has completed charging or the charge cycle has been interrupted and is transitioning to the next state. This stage lasts about one minute, while the battery is allowed to settle and battery voltage to drop back to normal.
XW_Operation.book Page 17 Wednesday, August 12, 2015 2:39 PM Monitoring Operation with the Conext SCP Table 2-1 Conext XW+ Home Screen States Conext XW+ Status Displayed When... Search Search mode is enabled and the Conext XW+ is standing by, waiting to begin inverting. See “Using Search Mode” on page 3–9. SellToGrid The Conext XW+ is grid-tied and is exporting energy to the utility grid on AC1. Both Grid Support and Sell must be enabled in order to sell power back to the utility.
XW_Operation.book Page 18 Wednesday, August 12, 2015 2:39 PM Monitoring Operation Table 2-2 Meters Screen Screen Item Description AC1 AC input power connected to the Conext XW+ AC1 terminals, in volt-amps and watts. AC1 is assumed to be connected to the utility grid, but can be connected to any other AC source. AC1 in L1 AC input voltage and current connected to the Conext XW+ AC1 L1 terminals. This input voltage display may drift slightly before the Conext XW+ has synchronized to the grid.
XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM 3 Configuration Chapter 3, “Configuration” explains how to navigate through the Conext System Control Panel menus and configure the Conext XW+ Inverter/Charger.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Configuration Using the Conext System Control Panel The Conext XW+ is configured using the Conext SCP (Conext System Control Panel). The Conext SCP provides access to settings relating to AC input and output, battery charging, and grid-tie operation. Conext XW+ Setup Menu The Conext XW+ Setup menu is accessible either from the system Home screen or from the Conext XW+ Home screen. To navigate to the Conext XW+ Setup menu: 1.
XW_Operation.book Page 3 Wednesday, August 12, 2015 2:39 PM Using the Conext System Control Panel Table 3-1 Conext XW+ Setup Menu Menu Item Description Grid Support Enables or disables grid-interactive Conext XW+ features, such as grid support and grid sell mode. See “Grid Support Settings” on page 3–25. To allow grid support to function after battery charging has completed, it is recommended to set the Charge Cycle to 2-Stage. The MPPT controllers must still be set to 3stage.
XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Configuration Note: Network time on the ComBox overrides time configured on any individual device in the network-enabled power system using network time protocol (NTP). If your device is not compatible with NTP, Conext XW+ features such as peak load shaving and charger block may not work correctly, and charge controller daily power production values may reset at an unexpected time.
XW_Operation.book Page 5 Wednesday, August 12, 2015 2:39 PM Using the Setup Menus The Conext XW+ advanced settings include menus for configuring: • Inverter settings (see page 3–8) • Charger settings (see page 3–11) • AC transfer limit settings (see page 3–23) • Grid support and peak load shaving settings (see page 3–25) • Generator support settings (see page 3–34) • Auxiliary output settings (see page 3–36).
XW_Operation.book Page 6 Wednesday, August 12, 2015 2:39 PM Configuration 5. If you have another setting to change, return to step 1. Or if you have no more settings to change, press Exit until the Conext SCP displays the desired screen or menu. Note: If you have no more settings to change, it is recommended to leave the Setup menu in the basic settings format to help prevent unintended configuration. If the Setup menu displays Advanced Settings, press Enter + up arrow + down arrow at the same time.
XW_Operation.book Page 7 Wednesday, August 12, 2015 2:39 PM Using the Setup Menus Basic Settings XW+ 6848 00:Basic Batt Type [Flooded] XW+ 6848 00:Inv [46V] [10s] [2.0V] [70V] [50W] [2s] [440Ah] [100%] [2-Stage] [50V] [AC1] [60A] [60A] [54V] [44V] XW+ 6848 00:Chg [Flooded] [440Ah] [100%] [2-Stage] [Warm] [50V] [180min] [12:00AM] [12:00AM] Custom Settings [Enabled] [64.0V] [57.6V] [57.6V] [54.0V] [108mV/C] LithiumIon [EXT_BMS] [14.4V] [140A] [14.4V] [140A] [14.
XW_Operation.book Page 8 Wednesday, August 12, 2015 2:39 PM Configuration Inverter Settings Menu The Inverter Settings menu contains settings that control when the Conext XW+ starts and stops producing AC output. Table 3-2 Inverter Settings Menu Item Description Low Batt Cut Out Low Batt Cut Out controls when the inverter stops producing AC output due to a low battery voltage condition.
XW_Operation.book Page 9 Wednesday, August 12, 2015 2:39 PM Inverter Settings Menu Using the Low Battery Cut Out and LBCO Delay Settings WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions.
XW_Operation.book Page 10 Wednesday, August 12, 2015 2:39 PM Configuration Single units When a single Conext XW+ has search mode enabled, the inverter sends electrical search pulses through its AC output. These search pulses look for connected AC loads. The delay between search pulses is set using the Search Delay setting. After a load larger than the Search Watts setting is detected, the inverter starts producing AC output.
XW_Operation.book Page 11 Wednesday, August 12, 2015 2:39 PM Charger Settings Menu Charger Settings Menu The Charger Settings menu provides options for configuring the Conext XW+ to operate from your battery bank. Table 3-3 Charger Settings Menu Item Description Batt Type Sets the system battery chemistry and type: Flooded (default), AGM, Gel, LithiumIon, and Custom. Selecting Custom displays the Custom Settings item, which allows you to adjust the settings for each charging stage.
XW_Operation.book Page 12 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-3 Charger Settings Menu Item Description Chg Block Stop Sets the time that charging on AC1 can resume. At the Chg Block Stop time, charging on AC1 is enabled again. For default settings, see “Charger Settings Menu” on page B–3. Battery Charger Functions When AC power is available, the Conext XW+ can operate as a battery charger. Different battery types and chemistries require different charging voltage levels.
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XW_Operation.book Page 14 Wednesday, August 12, 2015 2:39 PM Configuration Notes: When the charge cycle is interrupted, the charger will restart charging at the beginning of the multi-stage algorithm. Exit Current Threshold can be effectively disabled by programming the amp-hour capacity to 0. In this case, absorption will only exit once the Max Absorption timer expires.
XW_Operation.book Page 15 Wednesday, August 12, 2015 2:39 PM Charger Settings Menu Note: If there are DC loads on the batteries, the charger’s current may not decrease to a level to transition to the next stage of charging. In this case, the charger stays in absorption until the Absorb Time setting is reached. To avoid having the charger remain in absorption for too long, adjust Absorb Time on the Charger Settings menu.
XW_Operation.book Page 16 Wednesday, August 12, 2015 2:39 PM Configuration Float Stage Float charge maintains the batteries slightly above the self discharge voltage of the batteries. The charge current in float is the current necessary to maintain the batteries at the Float Voltage setting, limited only by the inverter's capability or other settings that limit the inverter's maximum charge rate.
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XW_Operation.book Page 18 Wednesday, August 12, 2015 2:39 PM Configuration Note: When the charge cycle is interrupted, the charger will restart charging at the beginning of the multi-stage algorithm. Exit Current Threshold can be effectively disabled by programming the amp-hour capacity to 0. In this case, absorption will only exit once the Max Absorption timer expires.
XW_Operation.book Page 19 Wednesday, August 12, 2015 2:39 PM Charger Settings Menu After absorption, the maximum charge DC current is set to 10% of battery capacity (for example, 44 A for 440 Ah). See Figure 3-6. This constant current charge will continue until the voltage has increased to the equalize voltage at which point the battery will be regulated at the temperature compensated equalize voltage.
XW_Operation.book Page 20 Wednesday, August 12, 2015 2:39 PM Configuration If the Conext XW+ will not perform the equalization, see Warning W96 “Cannot Equalize” in Table 4-3 on page 4–12. WARNING EQUALIZATION HAZARD Only flooded lead acid batteries should be equalize charged. Hydrogen and oxygen gases are produced when batteries are equalized and can potentially cause an explosion if ignited. Corrosive battery acid can escape.
XW_Operation.book Page 21 Wednesday, August 12, 2015 2:39 PM Charger Settings Menu Further details about Lithium Ion support can be found in the document “Lithium Ion Application Note (Document Number: 976-0319-01-01)” available at solar.schneider-electric.com. WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only.
XW_Operation.book Page 22 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-4 Custom Battery Settings Menu Item Description Batt Temp Comp Battery temperature compensation for a custom battery type. This setting is the reference that the BTS uses to adjust the charging voltage when the temperature is above or below 25 °C (77 °F).
XW_Operation.book Page 23 Wednesday, August 12, 2015 2:39 PM AC Input Settings AC Input Settings WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 24 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-5 AC Settings Menu Item Description AC1 Breaker Sets the AC1 (Grid) breaker size, based on the size of the breaker installed upstream from the AC1 connection port. The installed breaker size must not exceed the capacity of the upstream distribution panel. The Conext XW+ limits the maximum current draw on AC1 by derating its charging current to an equivalent of 80% of the AC1 breaker setting.
XW_Operation.book Page 25 Wednesday, August 12, 2015 2:39 PM Grid Support Settings Grid Support Settings The Grid Support Settings menu contains configuration options for grid-tie operation. To enable these settings, Grid Support must be enabled in the Setup menu (see “Conext XW+ Setup Menu” on page 3–2). In grid support mode, the Conext XW+ supports the utility grid by limiting the power drawn from the utility to close to zero.
XW_Operation.book Page 26 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-6 Grid Support Settings Menu Item Description Grid Supp Volts Sets the level to which the batteries will be discharged when the inverter is selling power to the grid or supporting the power grid by providing additional power to the loads on AC Out. This setting is not adjusted for the battery temperature even if the temperature sensor is installed. Sell Turns sell mode on and off.
XW_Operation.book Page 27 Wednesday, August 12, 2015 2:39 PM Grid Support Settings Table 3-6 Grid Support Settings Menu Item Description Load Shave Amps Sets the maximum amount of current that can be drawn from the AC1 (grid) input by the loads and battery charger combined. This setting determines the amperage level at which the inverter starts drawing power from the batteries to add to the utility power to meet the demand of the loads.
XW_Operation.book Page 28 Wednesday, August 12, 2015 2:39 PM Configuration Prioritizing and Managing Energy Sources with Advanced Features The Conext XW+ can be programmed to control how and when to use utility power as well as external DC sources of energy such as batteries and solar charge controllers. Advanced features allow management of peak loads, time-ofuse billing and self consumption.
XW_Operation.book Page 29 Wednesday, August 12, 2015 2:39 PM Prioritizing and Managing Energy Sources with Advanced Features excess power from the external DC sources is not converted and hence not used. For optimal sell performance, a battery bank of minimum 440 Ah is recommended. Grid Support enabled, Sell enabled In this mode, all available excess DC power is first used to power local AC loads attached to the inverter output.
XW_Operation.book Page 30 Wednesday, August 12, 2015 2:39 PM Configuration not reach bulk/absorption voltages in this mode, it is recommended to occasionally force a full charge cycle by either temporarily disabling grid support or forcing a bulk charge cycle from the grid (see “Force Chg” on the“Conext XW+ Setup Menu” on page 3–2.
XW_Operation.book Page 31 Wednesday, August 12, 2015 2:39 PM Prioritizing and Managing Energy Sources with Advanced Features Note: [Tdelay] is an entry/exit transition time delay to/from grid support and sell mode. If the battery voltage has higher fluctuations due to DC renewable sources (e.g. charge controllers, wind turbines, and so on), then the time delay can be increased by setting Sell Dly 40s to enabled (Table 3-12, “Advanced Features Menu” on page 3–49).
XW_Operation.book Page 32 Wednesday, August 12, 2015 2:39 PM Configuration Peak Load Shaving (PLS) Many utilities impose a surcharge on their customers based on the peak load used by a facility. To reduce utility peak demand charges, the inverter can be configured (using the Load Shave Amps setting) to limit the maximum draw the AC loads place on the utility. The inverter can be programmed to provide power above a specified level to avoid the surcharge.
XW_Operation.book Page 33 Wednesday, August 12, 2015 2:39 PM Prioritizing and Managing Energy Sources with Advanced Features When using the system for time-of-use metering, the system should be designed with a battery capacity large enough to support loads during the entire peak rate period without reaching the Low Batt Cut Out setting. Note: If the batteries reach the Low Battery Cut Out setting, the Conext XW+ automatically reconnects to the utility grid to maintain the connected load.
XW_Operation.book Page 34 Wednesday, August 12, 2015 2:39 PM Configuration Generator Support Settings WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 35 Wednesday, August 12, 2015 2:39 PM Generator Support Settings Battery Voltage Gen Support Mode V[DC max] Gen support mode [LBCO]+2V [entry] V[LBCO] [exit] AC In Current > GenSupportA AC In Current < GenSupportA [A] Figure 3-9 Gen Support Mode Graph Note: Ensure that the battery bank has sufficient energy to support your loads for the anticipated time period, otherwise draining the battery to LBCO may put the system in Fault mode.
XW_Operation.book Page 36 Wednesday, August 12, 2015 2:39 PM Configuration Auxiliary Output Settings WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 37 Wednesday, August 12, 2015 2:39 PM Auxiliary Output Settings Table 3-8 Aux Menu Values Setting Description Charge Bulk Exit Exits charge bulk mode. In charge bulk mode, the XW operates as a constant power source to the battery bank. Charge Absorption Exit Exits charge absorption mode and starts the following mode, depending on whether the unit is set to two or three-stage charge.
XW_Operation.book Page 38 Wednesday, August 12, 2015 2:39 PM Configuration time. Battery temperature is measured with a battery temperature sensor. Do not use this setting if a battery temperature sensor is not installed. With this setting, the auxiliary output can turn on a fan to vent the battery compartment. Fault Activates the auxiliary output when a fault occurs. The auxiliary output clears when the fault is cleared.
XW_Operation.book Page 39 Wednesday, August 12, 2015 2:39 PM Multi-Unit Config Menu Multi-Unit Config Menu WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 40 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-9 Multi-Unit Config Menu Item Description Default Range Inverter Mode For a split-phase system: For a multi-unit system to operate, one Conext XW+ must be configured to SplitPhMaster and the rest as SplitPhSlave, otherwise a system-wide fault is asserted.
XW_Operation.book Page 41 Wednesday, August 12, 2015 2:39 PM Multi-Unit Config Menu Setting the Device Name The Dev Name setting allows you to customize the name of the Conext XW+ as it is displayed on other screens and menus. The characters available are: • • • • A to Z a to z 0 to 9 space Note: Increasing the number of characters in a device name may cause other text on the same line to run off the edge of the screen. Device names should be limited to 10 characters or less.
XW_Operation.book Page 42 Wednesday, August 12, 2015 2:39 PM Configuration Setting the Device Number When several devices of the same type are installed in the Xanbus network, setting the device number is required to give a Xanbus-enabled device a unique identity. When each identical device has a unique number, the Conext SCP can correctly identify and display status information for each device. A device number consists of two digits ranging from 00 (default) to 31.
XW_Operation.book Page 43 Wednesday, August 12, 2015 2:39 PM Multi-Unit Config Menu Three-Phase Configuration WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 44 Wednesday, August 12, 2015 2:39 PM Configuration between sources of AC and consumption loads. For the installation, setup and commissioning of multi-cluster systems, refer to the Off-Grid Systems Guide for Conext XW+ available at solar.schneider-electric.com. Note: The XanBus communications protocol supports a maximum of twelve Conext XW+ units in a single network. To set up a three-phase system: 1.
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XW_Operation.book Page 46 Wednesday, August 12, 2015 2:39 PM Configuration Note: When configuring clusters of three Conext XW+ units (or a grouping of up to six in a grid-tie application), each cluster’s DC connections must be set to the same battery bank. If one of the units is set with a different DC connection, a system configuration fault (F66) occurs. Table 3-11 Connections Menu Item Description DCConn DC input and output connection.
XW_Operation.book Page 47 Wednesday, August 12, 2015 2:39 PM Copying Settings From Another Unit Copying Settings From Another Unit WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 48 Wednesday, August 12, 2015 2:39 PM Configuration Resetting the Conext XW+ to Default Settings WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 49 Wednesday, August 12, 2015 2:39 PM Using the Advanced Features Using the Advanced Features WARNING ADVANCED CONFIGURATION HAZARD Advanced menu settings should be used by qualified personnel only. Three phase operation should be configured by qualified personnel only. Consult with the local utility before enabling Conext XW+ sell mode or grid support functions. Do not change these settings unless you are under the supervision and direction of qualified personnel.
XW_Operation.book Page 50 Wednesday, August 12, 2015 2:39 PM Configuration Table 3-12 Advanced Features Menu Item Description Batt_Balance The Battery Balance function is disabled by default and is intended for use with inverters drawing power from a single battery bank. The Battery Balance function should be enabled when Conext XW+ units are used in multi-cluster systems with multiple battery banks. When enabled this feature helps balance the power draw across multiple battery banks.
XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM 4 Troubleshooting Chapter 4, “Troubleshooting”, contains information and procedures for identifying and solving possible problems with the Conext XW+ Inverter/Charger.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Troubleshooting General Troubleshooting Guidelines This section will help you narrow down the source of any problem you may encounter. Please read the following troubleshooting steps: 1. Check for a Warning or Fault message on the Conext System Control Panel or a Fault code on the inverter information panel. If a message is displayed, record it immediately. 2.
XW_Operation.book Page 3 Wednesday, August 12, 2015 2:39 PM Inverter Applications Inverter Applications The Conext XW+ performs differently depending on the AC loads connected to it. If you are having problems with any of your loads, read this section. Resistive Loads Resistive loads are the easiest and most efficient to drive. Voltage and current are in phase, which means they are in step with one another. Resistive loads generate heat in order to accomplish their tasks.
XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Troubleshooting Clocks You may notice that your clocks are not accurate. Some of the clocks on your appliances may reset when the Conext XW+ is in search mode. Disabling search mode will resolve this issue (See “Using Search Mode” on page 3–9). Searching When the inverter is in search mode, it may fail to start some loads even though the rated wattage on the load is more than the Search Watts setting.
XW_Operation.book Page 5 Wednesday, August 12, 2015 2:39 PM Inverter Troubleshooting Problem Possible cause Solution(s) No AC power output. Open AC output breakers or fuses and bad output wire connections. Check the Load AC Voltage status on the SCP Meters screen and check AC voltage on the inverter AC Out terminal block. The inverter information panel displays . Inverter is disabled. Re-enable inverter.
XW_Operation.book Page 6 Wednesday, August 12, 2015 2:39 PM Troubleshooting Problem Possible cause Solution(s) Inverter goes into invert mode and starts producing AC output and then stops or does not start at all. Search Watts setting is too low or high. Potential problem loads for search mode: If the search sensitivity is set higher than the combined loads, then connect an auxiliary load to bring the inverter out of search mode before the appliances can be turned on.
XW_Operation.book Page 7 Wednesday, August 12, 2015 2:39 PM Battery Charger Troubleshooting Battery Charger Troubleshooting To determine the cause of a charger error condition, refer to the troubleshooting solutions below to resolve the situation. Problem Possible Cause Solution AC1/AC2 LED is on, but will not start charging (allow 40 seconds to synchronize). 1) Charger is disabled on the Setup menu. 1) Enable the charger.
XW_Operation.book Page 8 Wednesday, August 12, 2015 2:39 PM Troubleshooting Problem Possible Cause AC1 or AC2 LED is flashing, but will not start charging AC voltage and frequency at the AC input terminal are within nominal range, but the inverter output is not yet synchronized to the AC source. There are four possible causes: (allow 40 seconds to synchronize). 4–8 Solution 1) The inverter may already be synchronized to another AC source. 1) The inverter is operating normally.
XW_Operation.book Page 9 Wednesday, August 12, 2015 2:39 PM Battery Charger Troubleshooting Problem Possible Cause Solution Charger amperage drops off before full charging has finished (no Fault LED). AC frequency at the AC input terminal may be out-of-tolerance (too high or low) or the AC voltage may be outside the Hi AC Volt or Lo AC Volt settings. AC input voltage approaching the low disconnect level. Check the settings on the AC Settings menu.
XW_Operation.book Page 10 Wednesday, August 12, 2015 2:39 PM Troubleshooting Problem Possible Cause Solution Charger output is low. Loose or corroded battery connections. Check and clean all connections. Loose AC input connections. Check and tighten AC wiring connections. Worn out batteries. Replace batteries. Battery cables too small or too long. Refer to cable and battery recommendations in the Conext XW+ Installation Guide.
XW_Operation.book Page 11 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Warning Messages Warning messages appear on the Conext SCP to alert you to an impending system change. You can view the 20 most recent warning messages using the Conext SCP’s warning log, accessible from the View Device Info menu. Each warning has a time stamp to let you know the date and time that the warning appeared.
XW_Operation.book Page 12 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-2 Warning Types and Behavior Warning type Behavior Manual warning Require you to acknowledge them before you can proceed with configuring or operating the Conext XW+. Manual warnings are usually in the form of a Yes/No question that you may acknowledge by pressing the Enter button on the Conext SCP for Yes and the Exit button for No. Refer to the Conext System Control Panel Owner’s Guide for more information.
XW_Operation.book Page 13 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-3 Warning Messages Conext System Warning Control Panel Number Message W57 FET1 Over Temperature Warning Type Cause Solution Automatic Internal temperature is over 85 °C (185 °F). AC input voltage may be too high while charging. Check for high input AC voltage. Operating too large of a load for too long while inverting. Remove excessive loads. Ambient temperature may Let inverter cool down and try restarting.
XW_Operation.book Page 14 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-3 Warning Messages Conext System Warning Control Panel Number Message W70 Synchronization Warning Warning Type Cause Solution Manual, AC input is not qualified 1. An AC input voltage phase is lost or out of the AC range in the three-phase. 1. Check the AC voltage presence of each phase at the AC input terminals for each Conext XW+. 2. AC input voltage phases are not synchronized with Conext 3-phase system. 2.
XW_Operation.book Page 15 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-3 Warning Messages Conext System Warning Control Panel Number Message Warning Type W501 Manual Inv/Chg is trying to fix a memory problem 975-0240-01-01 Cause Solution Non-volatile memory warning Normal operation may return or may go to fault. Turn Conext XW+ off and on to resume normal operation.
XW_Operation.book Page 16 Wednesday, August 12, 2015 2:39 PM Troubleshooting Fault Messages When the Conext XW+ detects a fault condition, the fault is displayed on the Conext System Control Panel. The Conext XW+ also illuminates the Fault light on the Conext System Control Panel and inverter information panel. A fault affects the operation of the unit. See “Fault Types” on page 4–17 for an explanation of the different fault types.
XW_Operation.book Page 17 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Fault Types There are three types of fault messages: automatic faults, manual faults, and escalating automatic faults. Table 4-4 describes how they differ in their behavior and how you can respond to them when they appear on the Conext System Control Panel. Table 4-4 Fault Types and Behaviors Fault type Behavior Automatic faults Clear automatically if the fault condition that generated the message goes away.
XW_Operation.book Page 18 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-5 Inverter Operation After Faults Faults State when Faults Occur Action After Faults F23 to F40: Anti-Islanding Grid Support (Peak Load Shaving or Selling) Unit moves to AC bypass and waits for nominal grid conditions to return for a minimum of five minutes. F41, F42: Aux power supply voltage Unit has qualified AC input. Unit shuts down and waits for nominal AC output voltage level, or a manual clear from user.
XW_Operation.book Page 19 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F1 AC Output Under Voltage Escalating Auto Fault. Must occur 3 times in 2 minutes before becoming a manual fault. AC under voltage shutdown at 108 V. The inverter has shut down to protect the loads. Clear the fault and attempt restart. If problem persists, call customer service. F2 AC Output Over Voltage Escalating Auto Fault.
XW_Operation.book Page 20 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F23 AI Over Frequency Automatic Over-frequency antiislanding, caught by the AC qualification limit. No action required. The inverter stops selling and disconnects from the grid. When the fault clears, a five-minute timer begins counting down. The inverter does not sell again until grid voltage and frequency are within range for five minutes.
XW_Operation.book Page 21 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F35 AI L2 Under Voltage Automatic See F34. See F23. F36 AI L1L2 Under Voltage Automatic See F34. See F23. F37 AI L1 Under Voltage Automatic Under-voltage antiislanding, fast disconnect, 66 VAC. See F23. F38 AI L2 Under Voltage Automatic See F37. See F23.
XW_Operation.book Page 22 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F44 Automatic Battery over- temperature shutdown at 60 °C. Clear the fault and attempt restart. Stop charging, check battery voltage and temperature. Check for excessive ambient temperature and adequate ventilation in the battery compartment. Battery Over Temperature Note: Shutdown temperature is above 60 °C.
XW_Operation.book Page 23 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-6 Fault Messages Fault Number Message Fault Type F52 EEPROM Error Manual No action. Clear fault and resume operating or configuring the unit. If the fault persists, have the unit serviced. F53 EEPROM Error Manual See F52. F54 EEPROM Error Manual See F52. F55 EEPROM Error Manual See F52. F56 EEPROM Error Manual See F52.
XW_Operation.book Page 24 Wednesday, August 12, 2015 2:39 PM Troubleshooting Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F58 FET2 Over Temperature Shutdown Automatic See F57. See F57. F59 GOCFG process failed Manual Auto-configuration process failed. Retry the “Copy From” procedure, or configure the unit manually. F63 AC Overload Escalating Auto Fault. Must occur 3 times in 5 minutes before becoming a manual fault. Excessive load on the AC output.
XW_Operation.book Page 25 Wednesday, August 12, 2015 2:39 PM Faults and Warnings Table 4-6 Fault Messages Fault Number Message Fault Type Cause Solution F68 Transformer Over Temperature Automatic The transformer temperature is over 140 °C. The fault clears when the transformer temperature falls to 125 °C. Ensure adequate ventilation around the Conext XW+. Reduce AC loads.
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XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM A Specifications Appendix A, “Specifications” provides the electrical and mechanical specifications for the Conext XW+ Inverter/Charger. DISCLAIMER REGARDING STATUS DATA STATUS DATA REPORTED BY THE XW/XW+ INVERTER/CHARGER (THE “XW/XW+”) ARE APPROXIMATE VALUES INTENDED TO PROVIDE GENERAL AND NON-EXACT INFORMATION ABOUT THE XW/XW+ SYSTEM.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Specifications Electrical Specifications Note: Specifications are subject to change without prior notice.
XW_Operation.book Page 3 Wednesday, August 12, 2015 2:39 PM Electrical Specifications Table A-1 Conext XW+ Inverter/Charger Electrical Specifications Continuous Charge Rate at L-L voltage (Charger Mode) Conext XW+ 6848 NA Conext XW+ 5548 NA 140 A 110 A Power Factor Corrected Charging PF (0.98) Typical Transfer Time 8 ms a.Conext XW+ 6848 NA (Part Number 865-6848-01) b.
XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Specifications Response to Abnormal Grid Conditions Note: Specifications are subject to change without prior notice.
XW_Operation.book Page 5 Wednesday, August 12, 2015 2:39 PM Electrical Specifications Conext XW+ Overload Capability Loads connected to the inverter are seldom constant, and large loads are often operated for short periods. To accommodate larger loads, the Conext XW+ can temporarily exceed its continuous output power rating. The graphs below illustrate approximate operation time versus load.
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XW_Operation.book Page 8 Wednesday, August 12, 2015 2:39 PM Specifications Output Power Versus Ambient Temperature Note: For the Conext XW+ 6848 model, the power can be limited by the installed DC and AC breakers. For example, at 8500 W the DC or AC breakers may disconnect before the 30 minute rating. When the internal temperature of the Conext XW+ exceeds a preset limit, it begins to limit output power automatically to stop maximum internal temperatures from being exceeded.
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XW_Operation.book Page 12 Wednesday, August 12, 2015 2:39 PM Specifications Mechanical Specifications Note: Specifications are subject to change without prior notice.
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XW_Operation.book Page 1 Wednesday, August 12, 2015 2:39 PM B Default Settings Appendix B contains the default configuration settings and ranges for the Conext XW+ Inverter/Charger. Configuration settings can be viewed and changed using the Conext System Control Panel.
XW_Operation.book Page 2 Wednesday, August 12, 2015 2:39 PM Default Settings Default Settings and Ranges Figure B-1 shows how the advanced Conext configuration menus are organized in the Conext System Control Panel. XW+ 6848 00:Inv [46V] [10s] [2.0V] [70V] [50W] [2s] XW+ 6848 00:Chg [Flooded] [440Ah] [100%] [2-Stage] [Warm] [50V] [180min] [12:00AM] [12:00AM] Custom Settings [Enabled] [64.0V] [57.6V] [57.6V] [54.0V] [108mV/C] LithiumIon [EXT_BMS] [14.4V] [140A] [14.4V] [140A] [14.
XW_Operation.book Page 3 Wednesday, August 12, 2015 2:39 PM Default Settings and Ranges Inverter Settings Menu Item Default Setting Range Step Size Low Batt Cut Out 46 V 40–48 V 0.1 LBCO Hysteresis 2V 0-10 V 0.1 LBCO Delay 10s 0–600s 1 High Batt Cut Out 70 V 58–70 V 0.
XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Default Settings Item Default Setting Range Step Size Batt Temp Compa 108 mV/C (Flooded, Gel) 0–180 mV/C 1 84 mV/C (AGM) a.Custom battery default settings are based on the Flooded battery default settings. The Gel and AGM default settings are provided here for reference only. LithiumIon Submenu Item Default Setting Range Step Size Control EXT_BMS EXT_BMS, 3stage, 2stage NoFloat n/a Bulk Voltage 57.6 V 54.2–64.0 V 0.
XW_Operation.book Page 5 Wednesday, August 12, 2015 2:39 PM Default Settings and Ranges Grid Support Menu Item Default Range Step Size Grid Supp Volts 53.0 Va 42.0–70.0 V 0.
XW_Operation.book Page 6 Wednesday, August 12, 2015 2:39 PM Default Settings Item Default Range Step Size Trigger Level— HighBattTemp 45.0°C 30.0–60.0°C 1 Clear Level— HighBattTemp 35.0°C 30.0–60.0°C 1 Trigger Level— LowBattTemp 0.0°C -30.0–10.0°C 1 Clear Level— LowBattTemp 5.0°C -30.0–10.0°C 1 Trigger Delay 1s 0–600s 1 Clear Delay 1s 0–600s 1 a.The Trigger Src setting (and the settings below Trigger Src) appear only if Manual Aux setting has been set to Automatic. b.
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XW_Operation.book Page 4 Wednesday, August 12, 2015 2:39 PM Schneider Electric solar.schneider-electric.com As standards, specifications, and designs change from time to time, please ask for confirmation of the information given in this publication. © 2015 Schneider Electric. All rights reserved.
