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PM2002DP

Energy Meter Evaluation Module

South African Micro Electronic Systems 

Application Note:

Energy M eter Evaluation Module

PM2002DP

INTRODUCTION

This application note describes the functionality of the

SA2002D metering integrated circuit using the PM2002DP

evaluationmodule.

TheSA2002enablesthemetermanufacturertobuildameter

that measures the energy consumption, and records it t o a

mechanical counter.Energyflowdirectionaswellasenergy

metering activity is indicated by means of LEDs. This

applicationnotewillfocusonthepracticaluseoftheSA2002D,

more detailed information specific to the SA2002D can be

foundintheapplicabledatasheet.

THE SA2002D PIN PROGRAMMABLE MONOCHIP

METER

Setting Calibrated

LEDimp/kWh

6A/220V

6400

10A/220V

6400

20A/220V

3200

30A/220V

3200

40A/220V

1600

60A/220V

1600

80A/220V

800

PinStatus

R0=0,R1=0,R2=1

R0=0,R1=0,R2=0

R0=1,R1=0,R2=0

R0=1,R1=0,R2=1

R0=0,R1=1,R2=0

R0=0,R1=1,R2=1

R0=1,R1=1,R2=0

Table1:Asummaryofthepinsettingspossiblewiththe

SA2002D.Pinstatus0indicatesconnectiontoVSSand1

indicatesconnectiontoVDD.

LiveIn

CONNECTORSONMODULE

The PM2002DPmoduleconnectsdirectlytoliveandneutral

onSCK1.Themoduleisreferencedtoliveandshouldbekept

inmindwhenconnectingtestequipmenttothemodule.The

currentismeasuredbytheshuntonthetopofthePCB.Theleft

terminaloftheshuntisconnectedtolive.Theliveoutwillbe

connectedtotherightterminaloftheshunt.

Name FunctionDescription

SCK1 Mainsconnectorformodulepowerandvoltage

sense

JP2 Optionalcurrenttransformerconnector.

(Underneathshuntresistor)

JP3 OptionalSteppermotorconnector.(Removejumper

J6todisconnectimpulsecounter)

Table2:Connectordescriptions

LiveOut

Neutral

Figure1:Connectionandjumpersettingsfor80A/220Vbi-directionalmetermodule

SPEC-0088(REV.3)

1/10

27-08-03

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