ATM90E32AS-AU-R datasheet(13/84 Pages) ATMEL

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M90E32AS [DATASHEET]

Atmel-46003B-SE-M90E32AS-Datasheet_02122015

Figure-4 Energy Accumulation Diagram

For all-phase-sum total of active, reactive and (arithmetic sum) apparent energy, the associated power is obtained by sum-

ming the power of the three phases. The accumulation method of all-phase-sum energy is determined by the EnPC/EnPB/

EnPA/ABSEnP/ABSEnQ bits (b0~b4, MMode0).

Note that the direction of all-phase-sum power and single-phase power might be different.

3.5.2

ENERGY REGISTERS

The M90E32AS meters non-decomposed total active, reactive and apparent energy, as well as decomposed active funda-

mental and harmonic energy. The registers are listed as below.

3.5.2.1

Total Energy Registers

Each phase and all-phase-sum has the following registers:

Active forward/ reverse

Reactive forward/ reverse

Apparent energy

Altogether there are 20 energy registers. Those registers are defined in 5.5.1 Regular Energy Registers.

3.5.2.2

Fundamental and Harmonic Energy Registers

The M90E32AS counts decomposed active fundamental and harmonic energy. Reactive energy is not decomposed to fun-

damental and harmonic.

The fundamental/harmonic energy is accumulated in the same way as active energy accumulation method described

above.

Registers:

Fundamental / harmonic

all-phase-sum / phase A / phase B / phase C

Forward / reverse

Altogether there are 16 energy registers. Refer to 5.5.2 Fundamental / Harmonic Energy Register.

CF Gen

Logic

CF pulse

Bi-directional

Energy

accumulator,

roll over

positive/

negative @

0.01CF

Forward

Energy

Accumulator

Backward

Energy

Accumulator

(-)0.01

(+)0.01

Phase-A

Phase-B

Phase-C

Per-

phase

Power

All-phase

sum Power

Pos-CF

Accumulator

Neg-CF

Accumulator

CF[1/2/34]RevST

Bi-directional

Energy

accumulator,

roll over

positive/

negative @

0.01CF

Forward

energy

accumulator

Backward

energy

accumulator

(-)0.01

(+)0.01

Bi-directional

Energy

accumulator,

roll over

positive/

negative @

0.01CF

Forward

energy

accumulator

Backward

energy

accumulator

(-)0.01

(+)0.01

Bi-directional

Energy

accumulator,

roll over

positive/

negative @

0.01CF

Forward

Energy

Accumulator

Backward

Energy

Accumulator

(-)0.01

(+)0.01

[P/Q]Ereg[A/B/C]PST

[P/Q]EregTPST

A/B/C

total

ATM90E32AS-AU-R Datasheet(PDF) 13 Page - ATMEL Corporation

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