Schneider Electric manual PowerLogic PM5100 series user guide

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PowerLogic™ PM5100 series user guide

Glossary

 

 

partial interval demand—equal to energy accumulated thus far in the interval divided by the length of the complete interval.

peak demand current—highest demand current measured in amperes since the last reset of demand.

peak demand real power—highest demand real power measured since the last reset of demand.

peak demand—highest demand measured since the last reset of demand.

phase currents (rms)—measurement in amperes of the rms current for each of the three phases of the circuit.

phase rotation—refers to the order in which the instantaneous values of the voltages or currents of the system reach their maximum positive values. Two phase rotations are possible: A-B-C or A-C-B.

potential transformer (PT)—also known as a voltage transformer (VT).

power factor (PF)—power factor is the degree to which voltage and current to a load are out of phase. Total power factor is the difference between the total power your utility delivers and the portion of total power that does useful work. True power factor is the ratio of real power to apparent power using the complete harmonic content of real and apparent power. Calculated by dividing watts by volt amperes. Displacement power factor is the cosine of the angle between the fundamental components of current and voltage, which represents the time lag between fundamental voltage and current.

real power—calculation of the real power (3-phase total and per-phase real power calculated) to obtain kilowatts.

rms—root mean square. Power meters are true rms sensing devices.

rolling block—a selected interval and subinterval that the power meter uses for demand calculation. The subinterval must divide evenly into the interval. Demand is updated at each subinterval, and the power meter displays the demand value for the last completed interval.

sliding block—an interval selected from 1 to 60 minutes (in 1-minute increments). If the interval is between 1 and 15 minutes, the demand calculation updates every 15 seconds. If the interval is between 16 and 60 minutes, the demand calculation updates every 60 seconds. The power meter displays the demand value for the last completed interval.

thermal demand—demand calculation based on thermal response.

Total Demand Distortion (TDD)—indicates the harmonic currents between an end user and a power source.

Total Harmonic Distortion (THD or thd)—indicates the degree to which the voltage or current signal is distorted in a circuit.

total power factorsee power factor. true power factor—seepower factor.

unary alarm—an alarm based on singular events or specific conditions for which setpoints are not appropriate.

voltage transformer (VT)—also known as a potential transformer (PT).

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Contents PowerLogic PM5100 Series Power and Energy Meter Page Important Information Please notePage Hardware Refer Introduction Chapter Safety Precau TionsEnce Chapter Alarms Chapter MeasurementsCalculations Chapter MID ComplianceGlossary Table of Contents PowerLogic PM5100 series user guide Power and Energy Meter Hardware Parts and AccessoriesBox Contents IntroductionIntroduction Safety Precautions Before You BeginPowerLogic PM5100 series user guide Models, Features and Options Functions and CharacteristicsPM5100 Series Models, Features and Options Functions and CharacteristicsTechnical Specifications Mechanical Characteristics Environmental CharacteristicsSafety precautions SafetyElectromagnetic Compatibility CommunicationDimension Meter mountingMounting the PM5100 Meter wiring Serial No Description SpecificationRecommended cables Make Part code DescriptionWiring Diagrams 3CT 2CTPower system Symbol DescriptionDirect connect voltage limits Current TransformerSymbol Power system setup parameters Power system descriptionMeter setting Voltage and current input wiring Voltage input protectionCurrent input protection Direct connect maximumControl power wiring CommunicationsBalanced system considerations Serial communicationsRS-485 wiring RS-485 network configurationRS-485 cable RS-485 maximum cable lengthDigital outputs Digital output connectionsPowerLogic PM5100 series user guide Hardware Reference Front panel display and meter setup LED indicatorsAlarm / energy pulsing LED modes Heartbeat / communications LEDRelated topics Notification iconsMeter screen menus Menu tree PM5100 display screen menusFront panel meter setup Meter setup screen navigationConfiguring the basic setup parameters Basic setup screenParameter Values Description Basic setup menu treeBasic setup parameters Communications setup Setting up serial communicationsSerial communications setup menu tree Communications setup parametersHMI settings Setting up the displaySetting up regional settings Display setup menu treeRegional settings setup parameters Setting up the screen passwordsRegional settings menu tree Setting the clock Lost passwordPassword setup menu tree Password setup parametersAdvanced setup Clock setup parametersAdvanced setup menu tree Parameter Format DescriptionSetting up the alarm / energy pulsing LED Advanced setup parametersAlarm / energy pulsing LED settings menu tree LED setup parameterPower or current demand setup parameters Output setup Demand setupDemand setup menu tree Alarms setup Remote Meter SetupFront panel display and meter setup Viewing Meter Data Viewing meter data from the front panelMeter data display screens Displaying data screensPower PQS Volts U-VHarm Energy EAlarm TimerUnbal MnMxClock Using ION Setup to view or modify configuration dataUsing software to view meter data Digital output applications Digital output setupInput / Output Digital output setup menu tree Alarm / energy pulsing LED setupConfiguring digital outputs using the front panel Navigate to I/O configuration Energy Pulsing Input / OutputPowerLogic PM5100 series user guide Second Alarms AlarmsAbout Alarms List of Standard 1-Second Over/Under Alarms AlarmUnary Alarms Alarm PrioritiesAlarm Setup Setting Up 1-Second Alarms Setting Up 1-Second Alarms Viewing Alarm Activity and History Setting Up Unary AlarmsViewing Active Alarms and Alarm Counters Viewing Unacknowledged Alarms and the Alarm History Log PowerLogic PM5100 series user guide Alarms Power factor Measurements and calculationsReal-time readings EnergyPower factor min/max convention Power factor sign conventionIEC mode Power factor minimum and maximumPower demand calculation methods Ieee modeDemand Block interval demandSynchronized demand Block interval demand exampleCurrent demand Predicted demandThermal demand Thermal demand examplePeak demand Predicted demand examplePower quality Harmonic content calculationsHarmonics overview Total Harmonic Distortion and Total Demand DistortionViewing harmonics using the front panel Displaying harmonics dataTHD and thd calculations TDD calculationViewing THD/thd using the front panel Power Quality display screenViewing TDD Example 7th to 15th harmonics for line-to-neutral voltageRelated topics Accuracy test requirements Testing overviewVerifying accuracy Reference device or energy standard Energy pulsingLocation of energy pulsing LED PM5100Verifying accuracy test Calculating the number of required pulses Calculating total powerPercent error calculation Total power limit for alarm / energy LED Total power limit for digital outputEnergy pulsing considerations VT and CT considerationsTypical sources of test errors Test pointsWatt-hour test points example Var-hour test points exampleMeter resets Front panel meter reset screensGlobal resets Reset menu treeSingle resets Single reset optionsAlarm counter options Alarm counter Option DescriptionPowerLogic PM5100 series user guideChapter 11-Meter resets Meter resets Maintenance and Upgrades Password RecoveryPower Meter Memory Identifying the Firmware Version, Model, and Serial NumberControl Power Additional Meter Status InformationDownloading Firmware MeterTroubleshooting Heartbeat/Comms LEDGetting Technical Support Register List TroubleshootingPotential Problem Possible Cause Possible Solution Specifications relevant to MID MID ComplianceMID overview MID compliance for the meterInstallation and wiring MID ComplianceInstalling the terminal covers PM5111 default screenDefault PM5111 display screen Location of terminal coversMID-protected setup parameters Lock-protected setup parametersLock-protected setup parameters Meter firmware versionLocking or unlocking the meter Setting up the PM5111Initializing the meter Setting up lock password Irrecoverable PasswordGlossary TermsPowerLogic PM5100 series user guide Abbreviations PowerLogic PM5100 series user guide Page Schneider Electric 35, rue Joseph Monier CS