Schneider Electric PM5100 manual Viewing TDD, Viewing THD/thd using the front panel

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PowerLogic™ PM5100 series user guide	Chapter 9—Power quality

Example: 7th to 15th harmonics for line-to-neutral voltage

Phase A

Phase B

Phase C

The vertical axis of the harmonics graph indicates the harmonic’s magnitude as a percentage of the fundamental harmonic, and is scaled based on the largest harmonic displayed. At the top of each vertical bar is a marker that shows the maximum value of the harmonic. If the harmonic is greater than the fundamental harmonic, this marker is triangular-shaped to show that the value is out of range.

Viewing TDD

1.Navigate to Harm > TDD. The Total demand distortion information displays.

Power Quality display screen

IEEE mode	IEC mode	Description

TDD	TDD	Total demand distortion

NOTE: Your meter’s Modbus map includes registers for harmonics data for integration into your power or energy management system.

2. Press  to return to the main display screens.

Related topics

•See “Front panel display and meter setup” on page 29 for front panel menu navigation details.

•Search PM5100 Modbus register list at www.schneider-electric.com to download the Modbus map.

Viewing THD/thd using the front panel

You can view THD/thd data using the front panel.

1.	Navigate to THD. On the THD/thd Select screen, press THD to display values that
	use the calculation method based on the fundamental harmonic, or thd to display
	values that use the calculation method based on the RMS value of all harmonics in
	that phase (including the fundamental).
	THD (or thd) display screens

		IEEE mode	IEC mode	Description

		Amps	I	Total harmonic distortion data for per phase and neutral currents.

		V L-L	U	Total harmonic distortion data line-to-line voltage.

		V L-N	V	Total harmonic distortion data line-to-neutral voltage.

2.	Press the current or voltage THD or thd values you want to view. The total harmonic
	distortion percentage values are displayed.
3.	Press  to return to the main display screens.

NOTE: Your meter’s Modbus map includes registers for total harmonic distortion data for integration into your power or energy management system.

© 2014 Schneider Electric All Rights Reserved

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Contents PowerLogic PM5100 Series Power and Energy Meter Page Please note Important InformationPage Introduction Chapter Safety Precau Tions EnceHardware Refer Chapter Measurements Chapter AlarmsCalculations Chapter MID ComplianceGlossary Table of Contents PowerLogic PM5100 series user guide Parts and Accessories Power and Energy Meter HardwareBox Contents IntroductionIntroduction Before You Begin Safety PrecautionsPowerLogic PM5100 series user guide Functions and Characteristics Models, Features and OptionsPM5100 Series Models, Features and Options Functions and CharacteristicsTechnical Specifications Environmental Characteristics Mechanical CharacteristicsSafety Safety precautionsElectromagnetic Compatibility CommunicationMeter mounting DimensionMounting the PM5100 Serial No Description Specification Meter wiringMake Part code Description Recommended cables3CT 2CT Wiring DiagramsSymbol Description Power systemDirect connect voltage limits Current TransformerPower system setup parameters Power system description Meter settingSymbol Voltage input protection Voltage and current input wiringCurrent input protection Direct connect maximumCommunications Control power wiringBalanced system considerations Serial communicationsRS-485 network configuration RS-485 wiringRS-485 cable RS-485 maximum cable lengthDigital output connections Digital outputsPowerLogic PM5100 series user guide Hardware Reference LED indicators Front panel display and meter setupAlarm / energy pulsing LED modes Heartbeat / communications LEDNotification icons Meter screen menusRelated topics PM5100 display screen menus Menu treeMeter setup screen navigation Front panel meter setupConfiguring the basic setup parameters Basic setup screenBasic setup menu tree Basic setup parametersParameter Values Description Setting up serial communications Communications setupSerial communications setup menu tree Communications setup parametersSetting up the display HMI settingsSetting up regional settings Display setup menu treeSetting up the screen passwords Regional settings menu treeRegional settings setup parameters Lost password Setting the clockPassword setup menu tree Password setup parametersClock setup parameters Advanced setupAdvanced setup menu tree Parameter Format DescriptionAdvanced setup parameters Setting up the alarm / energy pulsing LEDAlarm / energy pulsing LED settings menu tree LED setup parameterOutput setup Demand setup Demand setup menu treePower or current demand setup parameters Remote Meter Setup Alarms setupFront panel display and meter setup Viewing meter data from the front panel Viewing Meter DataMeter data display screens Displaying data screensVolts U-V Power PQSHarm Energy ETimer AlarmUnbal MnMxUsing ION Setup to view or modify configuration data Using software to view meter dataClock Digital output setup Input / OutputDigital output applications Alarm / energy pulsing LED setup Configuring digital outputs using the front panelDigital output setup menu tree Navigate to I/O configuration Energy Pulsing Input / OutputPowerLogic PM5100 series user guide Alarms About AlarmsSecond Alarms Alarm List of Standard 1-Second Over/Under AlarmsAlarm Priorities Unary AlarmsAlarm Setup Setting Up 1-Second Alarms Setting Up 1-Second Alarms Setting Up Unary Alarms Viewing Alarm Activity and HistoryViewing Active Alarms and Alarm Counters Viewing Unacknowledged Alarms and the Alarm History Log PowerLogic PM5100 series user guide Alarms Measurements and calculations Power factorReal-time readings EnergyPower factor sign convention Power factor min/max conventionIEC mode Power factor minimum and maximumIeee mode Power demand calculation methodsDemand Block interval demandBlock interval demand example Synchronized demandPredicted demand Current demandThermal demand Thermal demand example Predicted demand example Peak demandHarmonic content calculations Power qualityHarmonics overview Total Harmonic Distortion and Total Demand DistortionDisplaying harmonics data Viewing harmonics using the front panelTHD and thd calculations TDD calculationPower Quality display screen Viewing THD/thd using the front panelViewing TDD Example 7th to 15th harmonics for line-to-neutral voltageRelated topics Testing overview Verifying accuracyAccuracy test requirements Energy pulsing Reference device or energy standardLocation of energy pulsing LED PM5100Verifying accuracy test Calculating total power Percent error calculationCalculating the number of required pulses Total power limit for digital output Total power limit for alarm / energy LEDEnergy pulsing considerations VT and CT considerationsTest points Typical sources of test errorsWatt-hour test points example Var-hour test points exampleFront panel meter reset screens Meter resetsGlobal resets Reset menu treeSingle reset options Single resetsAlarm counter options Alarm counter Option DescriptionPowerLogic PM5100 series user guideChapter 11-Meter resets Meter resets Password Recovery Maintenance and UpgradesPower Meter Memory Identifying the Firmware Version, Model, and Serial NumberAdditional Meter Status Information Control PowerDownloading Firmware MeterHeartbeat/Comms LED TroubleshootingTroubleshooting Potential Problem Possible Cause Possible SolutionGetting Technical Support Register List MID Compliance Specifications relevant to MIDMID overview MID compliance for the meterMID Compliance Installation and wiringPM5111 default screen Installing the terminal coversDefault PM5111 display screen Location of terminal coversLock-protected setup parameters MID-protected setup parametersLock-protected setup parameters Meter firmware versionSetting up the PM5111 Initializing the meterLocking or unlocking the meter Irrecoverable Password Setting up lock passwordTerms GlossaryPowerLogic PM5100 series user guide Abbreviations PowerLogic PM5100 series user guide Page Schneider Electric 35, rue Joseph Monier CS