Over Current Protection OCP | Xantrex Technology XG 850 specification

Local Operation

Defining the UVP Set Point

To define the UVP set point:

1.Turn the power supply On.

2.Set the output to the desired voltage.

3.Turn the 9-position mode control to the PRT position. PRo OUP is displayed.

4.Turn the rotary Adjust/Enter control until PRo UUP is displayed.

5.Press the rotary Adjust/Enter control to select the UVP for setting up.

6.Set up the lower limit protection using the rotary Adjust/Enter control.

Important: The UVP range is variable from 0 volts to OVPSET –10%.

7.Once the desired value has been set, press the rotary Adjust/Enter control to commit the setting.

See “Coarse and Fine Adjustment Modes” on page 3–3.

The SCPI command (s) for these instructions are:

[[:]SOURce[<channel>]]:VOLTage:PROTection:UNDer[:LEVel]

Over Current Protection (OCP)

The OCP alarm is a firmware alarm that is only configurable using the SCPI interface. The OCP triggers if the output current exceeds the OCP set point. Because the OCP alarm is a firmware based alarm it has a latency before detection of the condition can occur. The user should be aware of this latency and take this into consideration when relying on OCP to protect a sensitive load. The maximum period for detecting an OCP condition is 300 ms.

OCP is fixed at 110% of rated current.

3-28	M370078-01

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Xantrex Technology XG 850 manual Over Current Protection OCP, Defining the UVP Set Point, To define the UVP set point

Contents

XG 850 Watt Series Page XG 850 Watt Series Programmable DC Power Supply Date and Revision Product Numbers FGAs firmware v1.09 and below Rack Mount Kit Part NumberPage Purpose ScopeAudience Conventions Used Related Information AcronymsFont Conventions Segment Important Safety Instructions Power Supply Safety Markings Standard Warnings Contents Local Operation Analog Programming APG and Isolated Analog Programming Isol Remote Operation Calibration and Troubleshooting Scpi Command Reference Error Messages 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 Front Panel 1XG 850 Watt Front Panel Front Panel Display and Controls 2Front Panel Display and Controls Rear Panel Connectors 3Rear Panel 6 V to 40 V Models Description Page Installation Basic Setup Procedure 1Basic Setup ProcedureStep Description Action Reference Inspecting and Cleaning Periodic CleaningWhen you first receive your unit, perform a physical check Initial Inspection Location and Mounting Rack MountingPurchasing Rack Mount Kits Ventilation Connecting AC Input Power AC Input Connector Selecting Load Wires Load Wiring2Current Carrying Capacity for Load Wiring Insulation Rating Maximum Load Wiring Length For Operation With Sense Lines Noise and Impedance Effects Powering the Power Supply On/Off To power on the power supplyTo power off the power supply Performing Functional Tests Voltage and Current Mode Operation Checks To perform the voltage and current mode operation checks Connecting Loads DC Output Connectors40 V Models 60 V-150 V Models 2Diode Placement Inductive Loads and Batteries Connecting Single Loads Connecting Multiple Loads Connecting Remote Sensing To connect the remote sense wires Installation Local Operation Configuring Settings from the Front Panel Using the 9-Position Mode ControlUsing the Rotary Adjust/Enter Control Introduction Coarse and Fine Adjustment Modes 1Select and Set from the Front Panel 1Select and Set from the Front Panel Setting Volts and Amps Modes Navigating the Menu System To access the tracking mode for entering voltage and current Normal Display Mode and Inactivity Timeout Front Panel 3Front Panel Menu System Display Messages on the Front Panel 2Front Panel Display TextDisplay Text Text Description LE U Standard Operation Operating Modes Constant Voltage Mode Operation Constant Current Mode OperationAutomatic Mode Crossover 4Operating Modes To set the voltage set point Vset Scpi command s for these instructions are To set the current set point Iset Shipped Configuration Local Operation 3Shipped ConfigurationTo enable the output power To disable the output power Output Auto Start Mode Auto Restart To enable on the auxiliary outputTo disable the auxiliary output To change the Auto Start mode Auxiliary Auto Start Mode To define the Auxiliary Auto Start mode Alarms and Errors 4Alarm Order of PrecedenceAlarm Precedence Output Maskable Display Latch Clearing Alarms Clearing Triggered and Manual AlarmsClearing a Flash Failure Alarm To clear a manual alarm Front Panel Alarm LED Clearing Automatic Alarms 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 Defining the OVP Set Point To define the OVP set point Using Under Voltage Protection UVP Over Current Protection OCP Defining the UVP Set PointTo define the UVP set point Using Over Temperature Protection Lock OTP Defining the OTP ModeResetting in Latch Mode To define the OTP lock Using the External Shutdown Function Activating the External Shutdown FunctionControlling the External Shutdown Function To activate the shutdown function Defining the Polarity of the External Shutdown Signal Defining the Interlock Mode Interlock Function Hardware Malfunction Alarms Power On Status Signal Current Configuration Memory Settings 7Power Cycle Saved/Recalled Settings User Setting Memory Locations Saving User Setting Memory Locations8User Accessible Saved/Recalled Settings To save user setting memory locations Recalling User Setting Memory Locations To load user setting memory locations To enable local lockout To disable local lockoutLocal Lockout Enabling Local Lockout SYSTemchannelsREMoteSTATe Resetting the Power Supply To perform a soft reset9Power Supply Default Settings Parameter Setting To reset the power supply Using Multiple Power Supplies 5Split Supply Operation Configuring Multiple Supplies for Series Operation Connecting to the Load in Local Sensing Mode Connecting to the Load in Remote Sensing Mode 7Load Connections in Remote Sensing Mode Setting up the Master Unit Setting up the Slave Units Setting Over Voltage Protection OVP Setting Foldback Protection 8Load Connections in Local Sensing Mode Page Isolated Analog Programming Isol Analog Programming APG of Output Voltage and Output Current Analog Monitor Signals Related APG Mode Reference Line Connector NameRemote Programming Options 1Monitor Lines Auxiliary Outputs 2Remote Programming OptionsControl of… Programming Scale Analog Programming APG Connector J1 PinFunction 3APG Pins and Functions J1 Pin Reference Function Making Control Connections 2Inserting Screwdriver into Spring Terminal Block Wiring Analog Programming Mode Analog Programming With External Voltage Source Voltage-Controlled Voltage APG Setup Activating APG Voltage ModeDeactivating APG Voltage Mode To deactivate the APG voltage mode Scpi commands for these instructions are Query for Analog Voltage Input Level Voltage-Controlled Current APG Setup Activating APG Current ModeDeactivating APG Current Mode To deactivate the APG current mode Query for Analog Current Input Level 6Programming Output Voltage using an External Resistor 7Programming Output Current using an External Resistor Resistive-Controlled Voltage APG Setup To activate APG voltage mode using an external resistor Scpi command for these instructions are Resistive-Controlled Current APG Setup Query for Analog Current Input Level 8Voltage Readback Using APG Connector J1 Voltage and Current Readback Isolated Analog Programming Mode Isol AUX Output and Isolated Analog Programming Isol Connector 4AUX Output and Isol Connector Pins and Functions J3 Comisolated Analog Programming APG and Isolated Analog Programming Isol Making Isol Control Connections Isol Programming With External Voltage Source Voltage-Controlled Voltage Isol Setup Activating Isol Programming Voltage ModeDeactivating Isol Voltage Mode To deactivate the Isol voltage mode Query for Isol Voltage Input Level Voltage-Controlled Current Isol Setup Activating Isol Programming Current ModeDeactivating 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 Resistive-Controlled Current Isol Setup Activating Isol Resistive-Controlled Current Setup Query for Isol Current Input Level Query Remote Control Source State Voltage and Current Readback IsolatedPage Remote Operation Remote Operation Hardware and Connection Setup Configuring Remote Control Using RS-232To configure remote control using RS-232 Remote Control Connectors 1Remote Control Connector Pins and Functions J4 and J61 RS-232 Communication Cable with RJ-45 to DB-9DB-9 Pinouts RJ-45 Pinouts RS-232 Communication Cable with RJ-45 to DB-25 DB-25 Pinout DB-25 Pinouts Completing the Setup To complete the setup Configuring Remote Control Using RS-485 RS-485 Communication Cable with RJ-45 to DB-95DB-9 Pinouts RJ-45 Plug Pinouts RS-485 Communication Cable with Two RJ-45s RJ-45 Plug on Slave Unit Configuring Remote Control using the USB Connector Setting Up the PC to Use the USB ConnectionInstalling USB to Serial Converter and Serial Port To download and install a virtual COM port VCP driver 7Found New Hardware Wizard Verifying Installation 9Completing the New Hardware Wizard To verify that the device has been installed 10Device Manager 11Communications Port COM1 Properties Complete the Setup Ethernet Enet or Gpib Connector Optional Multiple Power Supply Connections to RS-485 Bus Multiple Power Supply Setup Master SetupSlave Setup Terminal Configuration Setting up a HyperTerminal connectionData Format End of Message 14 USB Settings 15 Ascii Setup Data Rate Setting Kbps Selecting the Appropriate Communication PortTo select a communication port To select the desired rate Multichannel Address Setting To set the address Remote Interface Addressing Multichannel Commands Explained 8Rules for Multichannel Responses Root command ALLaddr1, addr2, addr3,...command parameter Status Reporting in Scpi 16SCPI Status Reporting Model Status Registers Model from Ieee Error/Event Queue ERR Status ByteQuestionable Status Register Summary QSR 9Status Byte Summary Register Request Service RQS Message Available MAVStandard 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 Bit Bit Weight Bit Name Description Summary of Standard Event Status Register Wait-to-Continue Command Operation Complete Standard Scpi Register Structure 19SCPI Register Model OPERation Status Register 20Operation Status Register Fanout 11OPERation Status Register OPERation SHUTdown Status Register OPERation SHUTdown PROTection Status Register Current SHare Sub-Register 14OPERation CSHare Status 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 TEMPerature Sub-Register 17QUEStionable TEMPerature Status RegisterVOLTage Sub-Register 16QUEStionable VOLTage Status Register Questionable Status Register Commands Voltage Status Register Commands Temperature Status Register Commands Scpi Error/Event Queue Querying For the Errors Querying For the Error Code Only Querying For the Number of Errors in the Queue Reset Command Reset command shall do the followingReset command explicitly shall not affect the following Commands Clear Status Command Clear All Status Registers 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 Querying Help for Command Syntax Gets the response SYSTHELPSYNT? Volt Locking and Unlocking the Front Panel Auto Sequence Programming Setting Dwell Time Storing an Auto Sequence Program Readback and Troubleshooting an Auto Sequence Program Saving an Auto Sequence Program to FileTo save an Auto Sequence Program to a file Reloading an Auto Sequence Program To reload Auto Sequence program from file Running an Auto Sequence Program Deleting an Auto Sequence Program Repeating an Auto Sequence Program Progrep Progstat RUN Configure Other Protection Mechanisms Setting the Foldback ModeTo set the foldback mode, send the command Command To set the foldback delay, send the command Command Over Temperature Protection Interlock Enable/Disable Save and Recall Set Analog Programming Level Set Remote Programming Interface Protection Mask Enable Alarms 19Alarms Bit MaskPage Calibration Calibration and Troubleshooting Understanding the Problem Offset Error Programmed ValueMain Voltage and Current Calibration Principle Gain Calibration Offset Calibration Recalibrate Gain 4Calibration Recalibrate Gain Calibrating the Output Voltage To perform gain calibrationTo perform offset calibration Calibrating the Output Current CALibrationchannelOUTPutCURRentammeter reading in amps Over Voltage Protection Calibration To calibrate the over voltage protection Non-isolated Analog Programming Calibration Non-isolated Voltage Monitoring CalibrationTo calibrate the non-isolated voltage monitoring Non-isolated Current Monitoring Calibration To calibrate the non-isolated current monitoring Non-isolated Voltage Programming of Voltage Calibration To calibrate the non-isolated voltage programming of voltage Non-isolated Resistive Programming of Voltage Calibration Non-isolated Voltage Programming of Current Calibration To calibrate the non-isolated voltage programming of current Non-isolated Resistive Programming of Current Calibration Calibration Procedure for Isolated Modes Isolated Voltage Monitoring CalibrationTo calibrate the isolated voltage monitoring Isolated Current Monitoring Calibration To calibrate the isolated current monitoring Isolated Voltage Programming of Voltage Calibration To calibrate the isolated voltage programming of voltage Isolated Resistive Programming of Voltage Calibration To calibrate the isolated resistive programming of voltage Isolated Voltage Programming of Current Calibration To calibrate the isolated voltage programming of current Isolated Resistive Programming of Current Calibration To calibrate the isolated resistive programming of current Calibrating the Input Voltage APG Signal Gain CalibrationOffset Calibration To calibrate the VAP APG input gain Calibrating the Input Current APG Signal To calibrate the CAP APG input gain calibration Offset Calibration Storing and Loading Calibration Parameters Restore Factory Calibration User Diagnostics Emergency ShutdownUnusual or Erratic Operation An emergency, carry out these steps Troubleshooting for Operators 1TroubleshootingSymptom Check Further Checks and Corrections SCPIReferenceCommand Scpi Conformance Information Ieee 488.2/SCPI Syntax and Style Scpi Command Hierarchy Using Scpi Commands Using Minimum and Maximum Using Queries Common Commands Terminating Characters Parameter Types Boolean ParametersDiscrete Parameters Numeric Parameters Spci Command Tree CALibration INITiate PROGram SENSe SYSTem Save Scpi Command Summary Parameter Function Scpi Command Description Range Query 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? Table A-11Protection Commands Function Scpi Command Description 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 CRemote Operation Table C-2Remote Operation Common Specifications for All Models Output Performance Specifications 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 and Product Information Warranty Disclaimer Product Return Material Authorization Policy Exclusions Return Procedure Out of Warranty ServiceInformation About Your System Index IX-2 M370046-01 M370046-01 IX-3 IX-4 Page Xantrex Technology Inc 800 733 5427 toll free North America 858 450 0085direct