Xantrex GT100-208 Operation And Maintenance Manual
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Xantrex GT100-208 Operation And Maintenance Manual

Gt100 series grid-tied photovoltaic inverter
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Grid-Tied Photovoltaic
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GT100
GT100-208
GT100-480
Operation and Maintenance Manual

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Summary of Contents for Xantrex GT100-208

  • Page 1 GT100-208 GT100-480 Operation and Maintenance Manual Xantrex GT100 ™ Grid-Tied Photovoltaic Inverter...
  • Page 3 Xantrex GT100 Grid-Tied ™ Photovoltaic Inverter Operation and Maintenance Manual...
  • Page 4 Xantrex and Smart choice for power are trademarks of Xantrex International, registered in the United States and other countries. Notice of Copyright Copyright © September 2008 Xantrex Technology Inc. No part of this document may be reproduced in any form or disclosed to third parties without the express written consent of: Xantrex Technology Inc.

  • Page 5: About This Manual

    About This Manual Purpose The purpose of this Operation and Maintenance Manual is to provide explanations and procedures for operating, maintaining, and troubleshooting the GT100 Grid- Tied Photovoltaic Inverter. Installation instructions are available in the GT100 Grid-Tied Photovoltaic Inverter Planning and Installation Manual (Part #:153379).

  • Page 6: Conventions Used

    PV array (GT100-208-PG). • The model GT100-208-NG Grid-Tied Photovoltaic Inverter (208 Vac input, negative grounded) will be referred to as the GT100-208-NG when it is being referenced individually. • The model GT100-208-PG Grid-Tied Photovoltaic Inverter (208 Vac input, positive grounded) will be referred to as the GT100-208-PG when it is being referenced individually.
  • Page 7 Liter per Minute NFPA National Fire Protection Association Phase-Shift Loop Photovoltaic UFCU Universal Frontpanel Control Unit Vacuum Fluorescent Display Related Information You can find more information about Xantrex Technology Inc. as well as its products and services at www.xantrex.com. 153378...

  • Page 9: Important Safety Instructions

    Important Safety Instructions SAVE THESE INSTRUCTIONS - DO NOT DISCARD This manual contains important safety instructions for the GT100 Grid-Tied Photovoltaic Inverter that must be followed during installation and maintenance procedures. WARNING: Shock Hazard Read and keep this Operation and Maintenance Manual for future reference. Before operating and maintaining the GT100, read all instructions, cautionary markings, and all other appropriate sections of this manual.
  • Page 10 Safety Risks WARNING: Shock Hazard The DC bus capacitors within the GT100 can still be energized for a maximum of five minutes after being disconnected. Open doors only after the GT100 has been disabled (S3) and the capacitor bank discharge time has expired. Verify that the capacitors are no longer energized (DC voltage) including terminals TB3 and TB4.

  • Page 11: General Safety Precautions

    General Safety Precautions 1. When installing the GT100 use only components recommended or sold by Xantrex. Doing otherwise may result in a risk of fire, electric shock, injury to persons, and will void the warranty. 2. Do not attempt to operate the GT100 if it has been dropped, or received more than cosmetic damage during transport or shipping.

  • Page 12: Wiring Requirements

    Safety Wiring Requirements 1. All wiring methods and materials shall be in accordance with the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements. • Use copper conductors with an insulation rating of 90°C. • If installed, the optional Fused Combiner (GTFC) requires the use of copper conductors with a maximum insulation rating of 75°C.
  • Page 13 In accordance with the National Electrical Code, ANSI/NFPA 70, connect only to a circuit provided with 400 amperes maximum branch circuit overcurrent protection for models GT100-208-NG and GT100-208-PG, and only to a circuit provided with 200 amperes maximum branch circuit overcurrent protection for models GT100-480-NG and GT100-480- Inverter Isolation Transformer The GT100 includes a custom, high-efficiency, isolation transformer.
  • Page 14 GT100. See Figure 1-8 on page 11 for the location of the DC Disconnect Switch. WARNING: Shock Hazard Xantrex recommends the installation of PV array disconnect(s) to ensure personal safety during GT100 maintenance. WITHOUT PV ARRAY DISCONNECT(S), ONCE THE DC DISCONNECT SWITCH (S1) IS OPEN, THERE WILLSTILL BE DC VOLTAGE on the DC terminals TB3, TB4 AND TB5 (PV GND).
  • Page 15 Safety Figure i AC Utility Terminals (PV GND) Figure ii DC Terminals 153378 xiii...

  • Page 16: Interconnection Standards Compliance

    Safety Interconnection Standards Compliance The GT100 complies with FCC Part 15 Class A requirements. The GT100 is designed to meet NEC Article 690 and UL1741-2005 Static Inverters And Charge Controllers For Use In Photovoltaic Power Systems, which includes testing for IEEE 1547.1-2005, IEEE 929-2000 and IEEE 519-2000. Intended Use The GT100 may only be used in connection with PV modules.

  • Page 17: Table Of Contents

    Contents Important Safety Instructions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - vii 1 Introduction Description of the GT100 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2 Power Conversion System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2...
  • Page 18 Contents 2 Operation Description of System Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Faults - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Operating States - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3...
  • Page 19 Contents 4 Troubleshooting Faults and Fault Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2 General Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3 Clearing Faults Manually - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4 Fault Code Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–5...
  • Page 20 xviii...
  • Page 21 Figures Figure 1-1 Main Inverter (Open Enclosure View) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3 Figure 1-2 GT100 Major Sections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4 Figure 1-3...
  • Page 23 Tables Table 1-1 DC Terminal Polarity - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 Table 1-2 DC Terminal Polarity (with GTFC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–9 Table 2-1...
  • Page 24 xxii...

  • Page 25: Introduction

    Introduction Chapter 1, “Introduction” contains information about the features and functions of the GT100 Grid-Tied Photovoltaic Inverter.

  • Page 26: Description Of The Gt100

    Introduction Description of the GT100 The GT100 Grid-Tied Photovoltaic Inverter is a utility interactive, three-phase power conversion system for grid-connected photovoltaic arrays with a power rating of 100 kW. Designed to be easy to install and operate, the GT100 automates start-up, shutdown, and fault detection scenarios.

  • Page 27: Physical Characteristics

    4-line, 80 character VFD display. User Interface A user-friendly, Xantrex GT View Graphic User Interface (GUI) provides a remote interface for operator interrogation of GT100 system status, control, metering/data logging and protective functions within the GT100. The status, control, and logging features are supported by an optional modem via an RS232 connection for remote monitoring.

  • Page 28: Figure 1-2 Gt100 Major Sections

    Introduction Power Electronics section AC Interface Isolation Transformer section DC Interface section section Figure 1-2 GT100 Major Sections 1–4 153378...

  • Page 29: Ac Interface

    Physical Characteristics AC Interface The AC Interface serves as the connection for the utility (see Figure 1-2 to locate the AC Interface). This compartment (section) houses the AC Terminals (TB1-N, -A, -B, and -C), AC Disconnect, AC Contactor, and EMI Filter. Additionally, the Inrush PCB assembly, control power transformer, control fuses, and AC sensing circuitry are also housed in this section.

  • Page 30: Auxiliary Control Interface

    Communications Circuit The GT100 can be remotely accessed through an RS232 serial port or through an RS485/Modbus connection. Xantrex offers modems that can be connected to the RS232 port for remote monitoring. The remote user has the ability to control and monitor the status of the inverter through this connection.

  • Page 31: Power Electronics

    Physical Characteristics Power Electronics The GT100 Power Electronics section contains the converter control unit (CCU2) and the power electronics matrix. Also found within the Power Electronics section are the Hall-effect current transducers, and an internal air circulation fan. Converter Control Unit (CCU2) The CCU2 is a Digital Signal Processor (DSP) based control board that performs numerous control and diagnostic functions associated with GT100 operation.

  • Page 32: Dc Interface

    Supply are also housed in this section. WARNING: Shock Hazard Xantrex recommends the installation of PV array disconnect(s) to ensure personal safety during GT100 maintenance. WITHOUT PV ARRAY DISCONNECT(S), ONCE THE DC DISCONNECT SWITCH (S1) IS OPEN, THERE WILLSTILL BE DC VOLTAGE on the DC terminals TB3, TB4 AND TB5 (PV GND).

  • Page 33: Fused Combiner (Optional)

    (see Table A-7 on page A–5 for acceptable wire range and torque requirements.) The table below describes the DC terminal polarity for each GT100 model with the GTFC installed. Table 1-2 DC Terminal Polarity (with GTFC) Model GTFC GT100-208-NG PV– PV GND GT100-208-PG PV– PV GND GT100-480-NG PV–...

  • Page 34: Circuit Diagram

    Introduction Circuit Diagram 100KVA FILTER AC CONTACTOR AC GRID 3 PHASE 60HZ POWER MATRIX SINGLE POINT INRUSH LIMIT CCU2 EARTH GROUND PV GND Figure 1-7 GT100 Circuit Diagram 1–10 153378...

  • Page 35: Operator Interface Controls

    Operator Interface Controls Operator Interface Controls Operator interface controls are located on the left front door of the main Inverter Enclosure. These controls include an ON/OFF Switch, 4-line VFD display and keypad called the Universal Frontpanel Control Unit (UFCU) used to manipulate and view system operation and status.

  • Page 36: On/Off Switch

    Introduction On/Off Switch The GT100 incorporates a maintained position switch located on the left front door, under the UFCU. Under normal operating conditions, the switch is in the position. Turning the switch to the position will initiate an immediate controlled shutdown of the GT100 and open both the main AC and DC contactors within the unit.

  • Page 37: Ac Disconnect And Dc Disconnect Switches

    Operator Interface Controls AC Disconnect and DC Disconnect Switches Both enclosure doors of the GT100 are equipped with lockout hasps for personnel safety. The enclosure doors should not be opened while the GT100 is operating. The switch handles and shafts provide a mechanical door interlock for both the AC and DC Interface sections.

  • Page 38: Operation Features

    Introduction Operation Features The GT100 has the following operation features. Fixed Unity Power Factor Operation The GT100 maintains unity power factor during operation. The control software constantly senses utility voltage, and constructs the output current waveform to match the utility voltage. The GT100 is not capable of operation without the presence of normal utility voltage, nor is it capable of varying the output power factor off unity.

  • Page 39: Utility Voltage/Frequency Fault Automatic Reset

    Operation Features Conversely, if the power comparison proves undesirable, the power tracker will reverse the direction of the change to the “PPT_V Step”. The MPPT algorithm within the GT100 will then continue this ongoing process of “stepping and comparing” in order to seek the maximum power throughput from the PV array. The changes made by the MPPT to the reference voltage are restricted to ±...

  • Page 40: Safety Features

    Introduction Safety Features Anti-Island Protection A condition referred to as "Islanding" occurs when a distributed generation source (such as the GT100 Grid-tied Photovoltaic Inverter) continues to energize a portion of the utility grid after the utility experiences an interruption in service. This type of condition may compromise personnel safety, restoration of service, and equipment reliability.

  • Page 41: Communication Features And Methods

    Communication Features and Methods Communication Features and Methods The GT100 provides three types of information to the user: • system status and/or fault information, • data logging information, and • oscillography. System status and fault information can be accessed using the Universal Front Panel Control Unit (UFCU), via an RS232 connection to a PC or via an RS485/ Modbus connection to a remote monitoring system.

  • Page 42: Figure 1-12 Vfd Display And Ufcu Location

    Introduction Universal Front Panel Control Unit (UFCU) VFD Display Figure 1-12 VFD Display and UFCU Location 1–18 153378...

  • Page 43: Data Logging

    Communication Features and Methods Data Logging The GT100 inverter stores data values and software metrics for debugging. The firmware maintains a data log located in the CCU2 non-volatile memory with a capacity of 25840 32-bit words. The GT100 records the 17 parameters listed below, and logs them into a circular buffer, such that the earliest records shall be overwritten once the capacity of the buffer is exceeded.

  • Page 44: Oscillography

    Introduction Oscillography The GT100 includes a graphic data analysis tool known as Oscillography. The inverter firmware continuously records, in the CCU2 non-volatile memory, 500 samples of data at 1 millisecond intervals. Of these, 250 samples are taken right before a fault occurs and 250 samples are taken after the fault. Once a fault occurs and the 250 samples are logged, the log stops and goes into DONE status.

  • Page 45: Optional Equipment

    Communication Modems Xantrex offers modems that can be connected to the RS232 serial port for remote monitoring of the inverter. Please check with Xantrex on available modem types. The remote user has the ability to control and monitor the status of the inverter through this connection.
  • Page 46 1–22...

  • Page 47: Operation

    Operation Chapter 2, “Operation” contains information on the basic operation of the GT100 Grid-Tied Photovoltaic Inverter.

  • Page 48: Description Of System Operation

    Operation Description of System Operation Overview The GT100 is a fully automated grid-interactive photovoltaic power inverter. System startup, system shutdown, PV power tracking, and fault detection scenarios are all governed and monitored by the CCU2 controller within the GT100. Manual interaction or control of the inverter is necessary only in the event of a system fault.

  • Page 49: Operating States

    Operating States Operating States A state machine implemented within the CCU2 control software governs the operation of the GT100 with clearly defined transitions between its operating states. There are five steady-state operating states and numerous intermediate transition states. • Shutdown •...

  • Page 50: Shutdown

    Operation Shutdown The line interface controller is idle. The CCU2 monitors the status of the PV array and utility grid, waiting in standby until the PV array is available to produce power to the grid. Transition The intermediate transition states provide an orderly progression from one operating state to the next.

  • Page 51: Matrix Test

    Operating States Matrix Test This operating state is provided to verify proper operation of the matrix and associated control electronics. In this state, the CCU2 will send digitized gating signals (On/Off) to the IGBTs at a 2 Hz rate. There is no power transfer between the PV and utility in this mode.

  • Page 52: Figure 2-2 Operating States Flow Chart For Power Tracking

    Operation POWER UP INITIALIZING INITIALIZING PV contactor opened. PV contactor opened. Inverter matrix off. Inverter matrix off. Grid contactor open. Grid contactor open. CCU2 Green LED on. Green LED on. Red off. Red Off. SWITCHED DISABLE System State: Switched Off System State: Key Disable PV contactor open.

  • Page 53: Operator Interface

    Operator Interface Operator Interface The purpose of the operator interface is to provide a means of communicating critical operational information to and from the unit. This communication occurs between the operator and the UFCU Keypad and VFD display or between the operator and a personal computer running the GT View GUI software.

  • Page 54: Vfd Display - Initialization Screen

    Once it’s done with this process, the standard display will appear. Front Panel Initialization - Screen 1 Model: GT100 System: Shutdown XANTREX TECHNOLOGY Inverter: Standby www.xantrex.com PV: Sleep... <countdown> 151-0410-xx-xx <Read Menu Item> System...

  • Page 55: Standard Display

    Operator Interface Standard Display The Standard Display provides the following information: • First Line - System Status (ID 1) • Second Line - Inverter Status (ID 4) • Third Line - PV Status (ID 13) • Fourth Line - Goal State (ID 2) Menu Structure The operator interface consists of three levels: •...

  • Page 56: Read Menu

    Operation Standard Display Menu System: PWR Tracking Inverter: Online Menu RITE PV: Online <Read Menu Item> Enter Goal State Set Date/Time Password Change Parameters Figure 2-5 Operator Interface Menu Diagram Menu The R Menu includes the following information: • Current Operating State or Goal State •...

  • Page 57: Table 2-1 Scrolling Through The Read Menu Parameters

    Operator Interface Table 2-1 Scrolling through the Read Menu Parameters Read Menu Value Fourth Line of the VFD FP Software Version FP V151-0410-xx-xx CCU Software Version CCU 151-0130-xx-xx Model Name G T 1 0 0 k W Date and Time JUN-25-2007 15:35:05 Goal State PWR Tracking...

  • Page 58: Figure 2-6 Scrolling Through The Read Menu

    Operation Standard Display From the Standard Display: 1.Press the \/ button once. System: PWR Tracking System: PWR Tracking Inverter: Online Inverter: Online PV: Online PV: Online 2. Fourth line displays Front <Read Menu item> 151-0410-xx-xx Panel version software. 3.Press the \/ button again. 4.

  • Page 59: Table 2-2 Read Menu Descriptions

    Operator Interface Table 2-2 Read Menu Descriptions Operational Parameter Description Units Current Operating State Current system states include the following. Displays as: System: * Initializing (0) Switched Off(1) where * can be any one of the states Shutdown (2) listed in the description for this Starting (3) parameter.
  • Page 60 Operation Table 2-2 Read Menu Descriptions Operational Parameter Description Units Phase C current Phase C current Displays as: INV C amps: xxx Inverter Real Power Inverter Real Power Displays as: INV KW: Inverter Matrix Temperature Temperature of the Inverter IGBT matrix heatsink °C Displays as: INV Temp.: PV State...

  • Page 61: Figure 2-7 Read-By-Id Feature

    Operator Interface -by-ID The Read-by-ID feature supports the ability of the user to view any Read or Write parameter available within the menu structure. See Table 2-2 for a list of the Read Menu parameters. To use the Read-by-ID Feature: 1.

  • Page 62: Write Menu

    Operation WRITE Menu Specific grid-interface parameters within the W Menu have been set in Important: RITE the factory to the limits mandated by UL1741. Any changes to these setpoints should be agreed upon by the local utility and the equipment owner. The W Menu includes the following parameters: RITE...

  • Page 63: Table 2-3 Write Menu Parameters

    Operator Interface e) To leave the W Menu and return to the R Menu, press the RITE <M > button once and the standard display will reappear on the VFD. Important: While in the W Menu, the operator interface display will reset itself to RITE the standard display if there is no input for more than 2 minutes.
  • Page 64 Operation Table 2-3 Write Menu Parameters Default Maximum Minimum Parameter Description Units Value Value Value Minimum Grid This parameter sets the trigger Hertz 59.3 59.8 Frequency point value for “AC frequency low” (0010) fault. If the grid Displays as: frequency is below this Min AC Freq: parameter’s value, the fault is triggered.
  • Page 65 Operator Interface Table 2-3 Write Menu Parameters Default Maximum Minimum Parameter Description Units Value Value Value PV Output Power to This is the output power trigger 10.0 Enter Sleep Test Mode point for the inverter to transition into sleep test mode. When the Displays as: output power is below the value of PV P Stop:...
  • Page 66 Operation Table 2-3 Write Menu Parameters Default Maximum Minimum Parameter Description Units Value Value Value Power Tracker Step This parameter sets the size of the Volts 10.0 change the Power Tracker will Displays as: make to the voltage reference PPT V Step: point as it tries to find the optimal position.
  • Page 67 (J1004) on 1=On Displays as: the CCU2. The serial protocol can be set to either Modbus ON (1) or Modbus ON: to Modbus OFF (0) [Xantrex protocol]. Modbus Address This parameter sets the address used by the Modbus protocol. Displays as:...

  • Page 68: Commanding Goal State Changes

    Operation Commanding Goal State Changes To change the Goal State: 1. From the standard display press the <M > key. The VFD will change the third line of the display to “ ” and fourth line of the Hit ENTER to set display to “...

  • Page 69: Setting The Date And Time

    Operator Interface Setting the Date and Time Follow the procedure below to change the date and time. To change the Date and Time: 1. From the standard display, press the <M > key. The VFD will change the third line of the display to “ ”...

  • Page 70: Manual State Transitions

    Operation Manual State Transitions State conditions can also be transitioned manually. Refer to “Commanding Goal State Changes” on page 2–22 for instructions on commanding GT100 goal states for manual transitions. Shutdown → Matrix Test → Shutdown 1. Turn the O switch to the O position.

  • Page 71: Auto-Restart Feature

    Auto-restart Feature Any State → Fault If the GT100 encounters a fault, regardless of operating state, it will transition to the Fault state. The GT100 will remain in this state until the fault condition has been remedied and cleared. The Fault Code number will appear on the first line of the VFD.

  • Page 72: Energize Procedure (Startup)

    Operation Energize Procedure (Startup) To start up the GT100: 1. Remove any lockout devices from the Utility connection circuit breaker and PV disconnect switch. 2. Close the Utility connection circuit breaker. 3. Close the PV Array disconnect (if installed). 4. Close the AC Disconnect (CB1). 5.

  • Page 73: Figure 2-10 Ac Utility Terminals

    GT100. See Figure 1-8 on page 1–11 for the location of the DC Disconnect Switch. WARNING: Shock Hazard Xantrex recommends the installation of PV array disconnect(s) to ensure personal safety during GT100 maintenance. WITHOUT PV ARRAY DISCONNECT(S), ONCE THE DC DISCONNECT SWITCH (S1) IS OPEN, THERE WILLSTILL BE DC VOLTAGE on the DC terminals TB3, TB4 AND TB5 (PV GND).

  • Page 74: Computer Communications With The Gt100

    Operation (PV GND) Figure 2-11 DC Terminals Computer Communications with the GT100 The GT100 provides an option for communicating system status, oscillography, or data logging through a personal computer via an RS232 connection and a modem using the GT View Graphic User Interface (GUI) software. System status, oscillography, and data logging are also available via the RS485/Modbus connection.

  • Page 75: Commissioning

    Commissioning Chapter 3, “Commissioning” contains information on safely commissioning the GT100 Grid-Tied Photovoltaic Inverter.

  • Page 76: Commissioning Procedure

    Perform the Matrix Test. i) Operate Inverter. 3. Submit the “Commissioning Test Record” on page B–3 and Fax a copy of product and purchase information found in “General Project and Product Information” on page WA–4 to Xantrex. 3–2 153378...

  • Page 77: Starting The Commissioning Test

    Starting the Commissioning Test Starting the Commissioning Test Serial Number Enter the information required on the form that appears on page B–3 of Appendix B, “Commissioning Test Record”. The converter serial number is located on a label placed on the lower-left front of the Inverter Enclosure door. Inverter Enclosure 1.

  • Page 78: Apply Grid Voltage

    Commissioning Apply Grid Voltage 1. Verify both GT100 Inverter Enclosure doors are closed and locked. 2. Close the AC Disconnect (CB1). This will energize the control power circuits. 3. Look, listen and smell for signs of defects. 4. Record any defects found. Front Panel Display 1.

  • Page 79: Confirm Power Tracker Configuration Operational Parameters

    Starting the Commissioning Test Confirm Power Tracker Configuration Operational Parameters 1. Verify the inverter’s Power Tracker Configuration. 2. Make any necessary changes. 3. Record these values. Apply DC Voltage 1. Verify both GT100 Inverter Enclosure doors are closed and locked. 2.

  • Page 80: Completed Commissioning

    1. Once you have successfully completed all the commissioning steps, ensure all the information is documented. 2. Email the completed Commissioning Test Record to: pvcommissioningreport@xantrex.com 3. Fax a copy of product and purchase information found in “General Project and Product Information” on page WA–4 to Xantrex. 3–6 153378...

  • Page 81: Troubleshooting

    Troubleshooting Chapter 4, “Troubleshooting” contains information and procedures for troubleshooting the GT100 Grid-Tied Photovoltaic Inverter. It provides descriptions of common situations and errors that may occur and provides possible solutions for resolving fault conditions. It also provides instructions for clearing faults manually, if required.

  • Page 82: Faults And Fault Codes

    Troubleshooting Faults and Fault Codes Fault states are automatic from any state of operation. In the event of a fault condition, the GT100 will immediately stop processing power and execute an immediate orderly shutdown, open both the main AC and DC contactors, and remain in a faulted state until the fault is remedied and cleared (manually or automatically).

  • Page 83: General Troubleshooting

    4. If the condition is sustained and cannot be corrected, again note and document the fault code and description, and contact either your Distributor / Reseller, or Xantrex Customer Service. WARNING: Lethal Voltage In order to remove all sources of voltage from the GT100, the incoming power must be de-energized at the source.

  • Page 84: Clearing Faults Manually

    Troubleshooting Clearing Faults Manually Faults associated with a grid disturbance clear automatically. These faults include: • 0010 (AC Frequency Low), • 0011 (AC Frequency High), • 0012 AC Voltage Low), and • 0013 (AC Voltage High). Once the utility recovers and remains within the excursion limits for a period set by the Auto-Clear Delay (ID 60), the GT100 will automatically clear the fault and resume normal operation.

  • Page 85: Fault Code Descriptions

    Fault Code Descriptions Fault Code Descriptions Table 4-1 provides a complete description of all the fault conditions that may occur on the GT100. Default values are shown, but some limits are user- adjustable. Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s)
  • Page 86 Troubleshooting Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes AC Voltage High This fault indicates that the utility • Utility grid voltage grid voltage is above or rose above rose above the allowable limit the maximum allowed value of 110% (default) of nominal Vac for greater...
  • Page 87 Fault Code Descriptions Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes XX30 Matrix Over Current This fault indicates that the GT100 • P3 or P1002 on CCU2 has detected that the AC current on is loose or disconnected one or more phases of the IGBT...
  • Page 88 Troubleshooting Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes 0034 Unused Matrix Over Fundamentally, an Unused Matrix • CCU2 malfunction Current Over Current Fault should not occur, however if it does, it is generally indicative of a CCU2 malfunction.
  • Page 89 Fault Code Descriptions Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes 0043 Serial EEPROM This fault indicates that the GT100 • Internal ROM error Timeout has detected that when writing data • CPU error to the serial EEPROM, a confirmation timer of 300mS has...
  • Page 90 Troubleshooting Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes XX52 Matrix Gate The CCU2 controller sends digitized • Fiber-optic harness is timing signals for gating the IGBT’s loose or disconnected • CCU2 ±15 Vdc Power via the driver board and bidirectional fiber optic communication.
  • Page 91 Fault Code Descriptions Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes 0062 Matrix Temperature This fault indicates that the GT100 • Cooling fan inoperable has detected that the temperature of • Air flow on heat sink the IGBT matrix aluminium heatsink impeded due to has exceeded the maximum allowed...
  • Page 92 Troubleshooting Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes 0082 Matrix Not ON This fault indicates that the GT100 • Software acknowledge has detected that the IGBT matrix bit not accepted • FPGA inoperable (FPGA) was not enabled after having sent a command for it to turn on.
  • Page 93 Fault Code Descriptions Table 4-1 Fault Codes Fault Type Error H=Hardware Code Fault Source(s) S=Software Fault Description Possible Causes 0093 Fast AC Voltage This fault indicates that the utility • Utility grid voltage High grid voltage is above or rose above rose above the allowable limit.
  • Page 94 4–14...

  • Page 95: Preventative Maintenance

    Preventative Maintenance Chapter 5, “Preventative Maintenance” contains information and procedures for performing preventative maintenance on the GT100 Grid-Tied Photovoltaic Inverter.

  • Page 96: Maintenance Safety

    Preventative Maintenance Maintenance Safety Prior to following any Maintenance Procedures, follow the System Shutdown and Lock-out and Tag procedure. Operational Safety Procedures Never work alone when servicing this equipment. A team of two is required until the equipment is properly de-energized, locked-out and tagged, and verified de- energized with a meter.

  • Page 97: Figure 5-1 Ac Terminal Connections From The Utility

    Maintenance Safety CAUTION Xantrex recommends the installation of PV array disconnect(s) to ensure personal safety during GT100 maintenance. WITHOUT PV ARRAY DISCONNECT(S), ONCE THE DC DISCONNECT SWITCH (S1) IS OPEN, THERE WILLSTILL BE DC VOLTAGE on the DC terminals TB3, TB4 AND TB5 (PV GND). This voltage may be as high as the open-circuit voltage of the PV Array and is limited to 600Vdc per NEC 690.

  • Page 98: Figure 5-2 Dc Terminal Locations

    Preventative Maintenance TB5 (PV GND) Figure 5-2 DC Terminal Locations GTFC TB5 (PV GND) Figure 5-3 DC Terminal Locations (with GTFC installed) 5–4 153378...

  • Page 99: Maintenance Intervals

    Enclosure Seals Inspect the enclosure door seals. If damaged, replace with equivalent closed cell foam gasket. Call your Xantrex Technology distributor for factory replacements or specifications. Electrical Inspect the condition of all wiring within and interfacing to the GT100. Inspect all...
  • Page 100 Preventative Maintenance found to be or are suspected to be unacceptable, contact your Xantrex Technology, Inc. distributor for factory replacements or recommendations. Replacement of any damaged wires will be necessary. Verify all mechanical connections are sufficiently tightened. Verify all conduction surfaces are clean and free of corrosion.

  • Page 101: A Specifications

    Specifications Appendix A provides the environmental and electrical specifications for the GT100 Grid-Tied Photovoltaic Inverter.

  • Page 102: System Specifications

    Specifications System Specifications The GT100 has been designed for photovoltaic power systems, which operate within the following specifications. CAUTION: Equipment Damage Operation of the GT100 in a manner other than specified in this manual may cause damage to the GT100 and other system components and will void the terms of the warranty.

  • Page 103: Electrical Specifications

    System Specifications Electrical Specifications Table A-2 provides the AC and DC specifications for the GT100. Table A-2 Electrical Specifications GT100-480-NG and GT100-208-NG and Specification GT100-480-PG GT100-208-PG Nominal AC Input Voltage 480 Vac 208 Vac (+10% to -12% acceptable range) (423 to 528 Vac)

  • Page 104: Over Voltage, Under Voltage And Frequency Ranges

    GT100. These detection limits have been factory tested and deemed to be in compliance with UL 1741 Rev 2005 and IEEE 1547 requirements for utility interaction. Table A-4 Over/Under Voltage and Over/Under Frequency Ranges GT100-480-NG and GT100-208-NG and Vac Condition GT100-480-PG GT100-208-PG (% of Nominal)

  • Page 105: Bolt Sizing And Torque Requirements

    System Specifications Bolt Sizing and Torque Requirements Table A-5 provides acceptable bolt sizes, and torque values for AC terminal connections. Table A-5 AC Terminal Bolt Size and Torque Values Max. # of Bolt Terminal Conductors per (Hardware) or Torque Connections Terminal Hole Size Requirements...

  • Page 106: Dimensions

    Specifications Table A-8 provides acceptable screw sizes, and torque values to be connected to the GT100 Auxiliary Control Interface terminal connections. Table A-8 Auxiliary Control Interface Screw Size and Torque Values Max. # of Aux Control Conductors Screw Torque Connections per Terminal (Hardware) Size Requirements...

  • Page 107: B Commissioning Test Record

    Commissioning Test Record Appendix B contains the Commissioning Test Record for the GT100 Grid-Tied Photovoltaic Inverter.
  • Page 108 B–2...
  • Page 109 Commissioning Test Record Commissioning Test Record Step 1. Record and Document Serial Number and Inverter Location Date and Time of Commissioning: Inverter Serial Number: Technician Name: CCU2 Board Serial Number: Company Name: Inverter Location: Bldg. # Contact Email: Address: City: State: Step 2.
  • Page 110 B–4...

  • Page 111: Warranty And Return Information

    What does this warranty not cover? Claims are limited to repair and replacement, or if in Xantrex's discretion that is not possible, reimbursement up to the purchase price paid for the product. Xantrex will be liable to you only for direct damages suffered by you and only up to a maximum amount equal to the purchase price of the product.
  • Page 112 Xantrex product specifi- cations including, but not limited to, high input voltage from generators and lightning strikes; c) the product if repairs have been done to it other than by Xantrex or its authorized service centers (hereafter "ASCs");...

  • Page 113: Return Material Authorization Policy

    Return Material Authorization Policy For those products that are not being repaired in the field and are being returned to Xantrex, before returning a product directly to Xantrex you must obtain a Return Material Authorization (RMA) number and the correct factory "Ship To"...

  • Page 114: Warranty Registration

    161-G South Vasco Road Livermore, CA 94551 Warranty Registration Please fill the required information in and send this page to Xantrex Technology Inc. (fax number: 925 455 0382) in order to apply for the 63 months Limited Warranty. General Project and Product Information ❐...

  • Page 115: Index

    Index 4–5 Abbreviations and Acronyms Fault Code Descriptions 1–5 1–17 AC Interface Fault Reporting and Logging 1–8 2–2 AC Interface Enclosure Faults 1–5 4–2 AC Utility Terminals Faults and Fault Codes 1–16 1–9 Anti-Island Protection Fused Combiner 1–2 Anti-islanding 1–2 Auto-Phase Rotation 2–25 Auto-restart Feature...
  • Page 116 2–7 2–16 Keypad Operation WRITE Menu 2–24 Manual State Transitions 2–9 Menu Structure 2–23 Setting the Date and Time 2–9 Xantrex Standard Display 2–8 web site VFD Display - Initialization Screen 1–21 Optional Equipment 1–20 Oscillography 5–5 Periodic Maintenance Personal Safety 1–7...
  • Page 118 Xantrex Technology Inc. 1 800 670 0707 Tel toll free NA 1 408 987 6030 Tel direct 1 800 994 7828 Fax toll free NA customerservice@xantrex.com www.xantrex.com 153378 Printed in USA.

This manual is also suitable for:

Gt100-480Gt100-208-ngGt100-208-pgGt100-480-ngGt100-480-pg

Table of Contents