Using Over Voltage Protection OVP | Xantrex Technology XG 850

Using Over Voltage Protection (OVP)

Using Over Voltage Protection (OVP)

The OVP circuit protects the load in the event of an analog programming error, an incorrect voltage control adjustment, or a power supply failure. The OVP circuit monitors the output voltage at the output of the power supply and will disable the output whenever a preset voltage set point is exceeded. You can set the preset voltage trip point by using the 9-position mode control on the front panel or via one of the remote programming interfaces.

To prevent accidental tripping of the OVP while setting up, the firmware will prevent the OVP set point from being less that 105% of the voltage set point when in local set point control mode. When the XG is in VAP mode for defining voltage set point the set point limitation will be based on the VAP input signal level. The user should note it is possible to trip

OVP in this mode if the OVP is configured when the analog programming 3 source is off.

When the user attempts to configure an OVP setpoint that is less than

105% of the voltage set point via the front panel the set point will stop allowing the value to decrement. If the user attempts to configure an OVP set point that is less than 105% of the voltage set point via SCPI a -221, "settings conflict error" will be pushed onto the error queue.

M370078-01

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Xantrex Technology XG 850 manual Using Over Voltage Protection OVP

Contents

XG 850 Watt Series Page XG 850 Watt Series Programmable DC Power Supply Date and Revision Rack Mount Kit Part Number Product Numbers FGAs firmware v1.09 and belowPage Scope PurposeAudience Conventions Used Acronyms Related InformationFont Conventions Segment Power Supply Safety Markings Important Safety Instructions Standard Warnings Contents Local Operation Analog Programming APG and Isolated Analog Programming Isol Remote Operation Calibration and Troubleshooting Error Messages Scpi Command Reference Specifications Xvi Figures RS-232 Communication Cable with DB-25 Pinout Tables Tables Introduction Features and Options XG 850 Watt Models XG 850 Watt Series Voltage and Current RangesModel Output Voltage Output Current 1XG 850 Watt Front Panel Front Panel 2Front Panel Display and Controls Front Panel Display and Controls 3Rear Panel 6 V to 40 V Models Rear Panel Connectors Description Page Installation Basic Setup Procedure 1Basic Setup ProcedureStep Description Action Reference Periodic Cleaning Inspecting and CleaningWhen you first receive your unit, perform a physical check Initial Inspection Rack Mounting Location and MountingPurchasing Rack Mount Kits Ventilation AC Input Connector Connecting AC Input Power Load Wiring Selecting Load Wires2Current Carrying Capacity for Load Wiring Insulation Rating Noise and Impedance Effects Maximum Load Wiring Length For Operation With Sense Lines To power on the power supply Powering the Power Supply On/OffTo power off the power supply Performing Functional Tests To perform the voltage and current mode operation checks Voltage and Current Mode Operation Checks DC Output Connectors Connecting Loads40 V Models 60 V-150 V Models Inductive Loads and Batteries 2Diode Placement Connecting Multiple Loads Connecting Single Loads To connect the remote sense wires Connecting Remote Sensing Installation Local Operation Using the 9-Position Mode Control Configuring Settings from the Front PanelUsing the Rotary Adjust/Enter Control Introduction 1Select and Set from the Front Panel Coarse and Fine Adjustment Modes 1Select and Set from the Front Panel Navigating the Menu System Setting Volts and Amps Modes To access the tracking mode for entering voltage and current Front Panel Normal Display Mode and Inactivity Timeout 3Front Panel Menu System Display Messages on the Front Panel 2Front Panel Display TextDisplay Text Text Description LE U Operating Modes Standard Operation Constant Voltage Mode Operation Constant Current Mode OperationAutomatic Mode Crossover To set the voltage set point Vset 4Operating Modes To set the current set point Iset Scpi command s for these instructions are 3Shipped Configuration Shipped Configuration Local OperationTo enable the output power To disable the output power To enable on the auxiliary output Output Auto Start Mode Auto RestartTo disable the auxiliary output To change the Auto Start mode To define the Auxiliary Auto Start mode Auxiliary Auto Start Mode Alarms and Errors 4Alarm Order of PrecedenceAlarm Precedence Output Maskable Display Latch Clearing Triggered and Manual Alarms Clearing AlarmsClearing a Flash Failure Alarm To clear a manual alarm Clearing Automatic Alarms Front Panel Alarm LED Alarm Masking 5Alarm Mask Bit PositionsAlarm Bit Position Value Alarm Output Latching 6Alarm Latch Bit PositionsBit Alarm Position Value Setting Foldback Mode To set the foldback protection and foldback delay timeTo disable foldback protection Resetting Activated Foldback Protection Using Over Voltage Protection OVP To define the OVP set point Defining the OVP Set Point Using Under Voltage Protection UVP Over Current Protection OCP Defining the UVP Set PointTo define the UVP set point Defining the OTP Mode Using Over Temperature Protection Lock OTPResetting in Latch Mode To define the OTP lock Activating the External Shutdown Function Using the External Shutdown FunctionControlling the External Shutdown Function To activate the shutdown function Defining the Polarity of the External Shutdown Signal Interlock Function Defining the Interlock Mode Power On Status Signal Hardware Malfunction Alarms 7Power Cycle Saved/Recalled Settings Current Configuration Memory Settings Saving User Setting Memory Locations User Setting Memory Locations8User Accessible Saved/Recalled Settings To save user setting memory locations To load user setting memory locations Recalling User Setting Memory Locations To disable local lockout To enable local lockoutLocal Lockout Enabling Local Lockout SYSTemchannelsREMoteSTATe To perform a soft reset Resetting the Power Supply9Power Supply Default Settings Parameter Setting To reset the power supply Using Multiple Power Supplies 5Split Supply Operation Connecting to the Load in Local Sensing Mode Configuring Multiple Supplies for Series Operation 7Load Connections in Remote Sensing Mode Connecting to the Load in Remote Sensing Mode Setting up the Slave Units Setting up the Master Unit Setting Foldback Protection Setting Over Voltage Protection OVP 8Load Connections in Local Sensing Mode Page Isolated Analog Programming Isol Analog Programming APG of Output Voltage and Output Current Related APG Mode Reference Line Connector Name Analog Monitor SignalsRemote Programming Options 1Monitor Lines Auxiliary Outputs 2Remote Programming OptionsControl of… Programming Scale Analog Programming APG Connector J1 PinFunction Pin Reference Function 3APG Pins and Functions J1 2Inserting Screwdriver into Spring Terminal Block Making Control Connections Wiring Analog Programming With External Voltage Source Analog Programming Mode Activating APG Voltage Mode Voltage-Controlled Voltage APG SetupDeactivating APG Voltage Mode To deactivate the APG voltage mode Query for Analog Voltage Input Level Scpi commands for these instructions are Activating APG Current Mode Voltage-Controlled Current APG SetupDeactivating APG Current Mode To deactivate the APG current mode Query for Analog Current Input Level 7Programming Output Current using an External Resistor 6Programming Output Voltage using an External Resistor To activate APG voltage mode using an external resistor Resistive-Controlled Voltage APG Setup Scpi command for these instructions are Resistive-Controlled Current APG Setup Query for Analog Current Input Level Voltage and Current Readback 8Voltage Readback Using APG Connector J1 AUX Output and Isolated Analog Programming Isol Connector Isolated Analog Programming Mode Isol Comisolated 4AUX Output and Isol Connector Pins and Functions J3 Analog Programming APG and Isolated Analog Programming Isol Isol Programming With External Voltage Source Making Isol Control Connections Activating Isol Programming Voltage Mode Voltage-Controlled Voltage Isol SetupDeactivating Isol Voltage Mode To deactivate the Isol voltage mode Query for Isol Voltage Input Level Activating Isol Programming Current Mode Voltage-Controlled Current Isol SetupDeactivating Isol Current Mode To deactivate the Isol current mode Query for Isol Current Input Level Analog Programming With External Resistor Resistive-Controlled Voltage Isol Setup Query for Isol Voltage Input Level Activating Isol Resistive-Controlled Current Setup Resistive-Controlled Current Isol Setup Query for Isol Current Input Level Voltage and Current Readback Isolated Query Remote Control Source StatePage Remote Operation Remote Operation Configuring Remote Control Using RS-232 Hardware and Connection SetupTo configure remote control using RS-232 Remote Control Connectors RS-232 Communication Cable with RJ-45 to DB-9 1Remote Control Connector Pins and Functions J4 and J61DB-9 Pinouts RJ-45 Pinouts DB-25 Pinout DB-25 Pinouts RS-232 Communication Cable with RJ-45 to DB-25 To complete the setup Completing the Setup RS-485 Communication Cable with RJ-45 to DB-9 Configuring Remote Control Using RS-4855DB-9 Pinouts RJ-45 Plug Pinouts RJ-45 Plug on Slave Unit RS-485 Communication Cable with Two RJ-45s Setting Up the PC to Use the USB Connection Configuring Remote Control using the USB ConnectorInstalling USB to Serial Converter and Serial Port To download and install a virtual COM port VCP driver 7Found New Hardware Wizard 9Completing the New Hardware Wizard Verifying Installation 10Device Manager To verify that the device has been installed 11Communications Port COM1 Properties Complete the Setup Multiple Power Supply Connections to RS-485 Bus Ethernet Enet or Gpib Connector Optional Multiple Power Supply Setup Master SetupSlave Setup Setting up a HyperTerminal connection Terminal ConfigurationData Format End of Message 14 USB Settings 15 Ascii Setup Selecting the Appropriate Communication Port Data Rate Setting KbpsTo select a communication port To select the desired rate To set the address Multichannel Address Setting Remote Interface Addressing 8Rules for Multichannel Responses Multichannel Commands Explained Root command ALLaddr1, addr2, addr3,...command parameter Status Reporting in Scpi 16SCPI Status Reporting Model Status Registers Model from Ieee Status Byte Error/Event Queue ERRQuestionable Status Register Summary QSR 9Status Byte Summary Register Message Available MAV Request Service RQSStandard Event Status Summary ESB Master Summary Status MSS Service Request Enable Register Operation Status Register Summary OSRQuery the Status Byte Standard Event Status Enable Register Standard Event Status Register SesrStandard Event Status Register Summary of Standard Event Status Register Bit Bit Weight Bit Name Description Operation Complete Wait-to-Continue Command 19SCPI Register Model Standard Scpi Register Structure 20Operation Status Register Fanout OPERation Status Register 11OPERation Status Register OPERation SHUTdown PROTection Status Register OPERation SHUTdown Status Register 14OPERation CSHare Status Register Current SHare Sub-Register Operation Status Register Commands Current Sharing Sub-Register Commands Shutdown Sub-Register Commands Protection Sub-Register Commands QUEStionable Status Register 21SCPI QUEStionable Registers Fanout 15QUEStionable Status Register 17QUEStionable TEMPerature Status Register TEMPerature Sub-RegisterVOLTage Sub-Register 16QUEStionable VOLTage Status Register Questionable Status Register Commands Voltage Status Register Commands Temperature Status Register Commands Querying For the Errors Scpi Error/Event Queue Querying For the Number of Errors in the Queue Querying For the Error Code Only Reset command shall do the following Reset CommandReset command explicitly shall not affect the following Commands Clear All Status Registers Clear Status Command Scpi Preset Status Preset Values of User Configurable RegistersRegister Filter/Enable Preset Value Command Line Help System Querying Help for all Command HeadersHelp commands are SRE Querying Help for Legacy Command Headers Gets the response Querying Help for Command Syntax SYSTHELPSYNT? Volt Auto Sequence Programming Locking and Unlocking the Front Panel Storing an Auto Sequence Program Setting Dwell Time Readback and Troubleshooting an Auto Sequence Program Saving an Auto Sequence Program to FileTo save an Auto Sequence Program to a file To reload Auto Sequence program from file Reloading an Auto Sequence Program Running an Auto Sequence Program Repeating an Auto Sequence Program Deleting an Auto Sequence Program Progrep Progstat RUN Setting the Foldback Mode Configure Other Protection MechanismsTo set the foldback mode, send the command Command To set the foldback delay, send the command Command Interlock Enable/Disable Over Temperature Protection Set Analog Programming Level Save and Recall Set Remote Programming Interface 19Alarms Bit Mask Protection Mask Enable AlarmsPage Calibration Calibration and Troubleshooting Understanding the Problem Offset Error Programmed ValueMain Voltage and Current Calibration Principle Offset Calibration Gain Calibration 4Calibration Recalibrate Gain Recalibrate Gain Calibrating the Output Voltage To perform gain calibrationTo perform offset calibration Calibrating the Output Current CALibrationchannelOUTPutCURRentammeter reading in amps To calibrate the over voltage protection Over Voltage Protection Calibration Non-isolated Analog Programming Calibration Non-isolated Voltage Monitoring CalibrationTo calibrate the non-isolated voltage monitoring To calibrate the non-isolated current monitoring Non-isolated Current Monitoring Calibration To calibrate the non-isolated voltage programming of voltage Non-isolated Voltage Programming of Voltage Calibration Non-isolated Resistive Programming of Voltage Calibration To calibrate the non-isolated voltage programming of current Non-isolated Voltage Programming of Current Calibration Non-isolated Resistive Programming of Current Calibration Calibration Procedure for Isolated Modes Isolated Voltage Monitoring CalibrationTo calibrate the isolated voltage monitoring To calibrate the isolated current monitoring Isolated Current Monitoring Calibration To calibrate the isolated voltage programming of voltage Isolated Voltage Programming of Voltage Calibration To calibrate the isolated resistive programming of voltage Isolated Resistive Programming of Voltage Calibration To calibrate the isolated voltage programming of current Isolated Voltage Programming of Current Calibration To calibrate the isolated resistive programming of current Isolated Resistive Programming of Current Calibration Gain Calibration Calibrating the Input Voltage APG SignalOffset Calibration To calibrate the VAP APG input gain To calibrate the CAP APG input gain calibration Calibrating the Input Current APG Signal Offset Calibration Storing and Loading Calibration Parameters Restore Factory Calibration Emergency Shutdown User DiagnosticsUnusual or Erratic Operation An emergency, carry out these steps Troubleshooting for Operators 1TroubleshootingSymptom Check Further Checks and Corrections SCPIReferenceCommand Ieee 488.2/SCPI Syntax and Style Scpi Conformance Information Scpi Command Hierarchy Using Scpi Commands Using Queries Using Minimum and Maximum Terminating Characters Common Commands Boolean Parameters Parameter TypesDiscrete Parameters Numeric Parameters CALibration Spci Command Tree INITiate PROGram SENSe SYSTem Save Parameter Function Scpi Command Description Range Query Scpi Command Summary Scpi Table A-2Readback Commands Table A-3SCPI Commands for Output Control Table A-4SCPI Commands for Calibration Calibrates the isolated ?NR1 Yes Voltage APG Calibrates the current ? NR1 Yes Voltage Table A-6SCPI Commands for Foldback Protection Table A-7SCPI Commands for Power Table A-9System Commands Select level for Voltage ?Level Yes Analog YYYY.V Table A-10Status Commands See -12 on Query the Operation Yes Query the Operation Yes Query the Operations Event Yes Preset Enable See -15 on Yes Questionable See -15 on Query Yes Questionable ESE,*ESE? Function Scpi Command Description Table A-11Protection Commands PROGramchannelSTEPDWEL1 Page Error Messages Error Messages Command Error List Table B-1Command Error ListError Message Description Execution Error List Execution Error List Device-Specific Error List Device-Specific Error List Query Error List Query Error List Specifications CElectrical Specifications for XG 850 Watt AC Line Input Specifications for XG 850 Watt Table C-2Remote Operation CRemote Operation Output Performance Specifications Common Specifications for All Models Specifications M370078-01 Figure C-1XG 850 Watt Mechanical Dimensions 6 to 40 V Models 17.6 447.5 mm 214.2 mm 43.6 mm 22 in .5 mm Warranty Warranty and Product Information Product Disclaimer Exclusions Return Material Authorization Policy Return Procedure Out of Warranty ServiceInformation About Your System Index IX-2 M370046-01 M370046-01 IX-3 IX-4 Page 800 733 5427 toll free North America 858 450 0085direct Xantrex Technology Inc