MAXQ3183-RAN+ datasheet(98/102 Pages) MAXIM

98 / 102 page

Low-Power, Multifunction, Polyphase AFE

with Harmonics and Tamper Detect

______________________________________________________________________________________

Fundamental Apparent Power, Phase A/B/C/T (PWRSF.X)

(A: 0x8A1, B: 0x8A2, C: 0x8A4, T: 0x8A7)

This register contains the instantaneous apparent power delivered into phase A/B/C or total at the fundamental line

frequency only. Power is calculated from the instantaneous energy measurement according to the following equation:

Fundamental Real Energy, Phase A/B/C/T (ENRPF.X)

(A: 0x8E1, B: 0x8E2, C: 0x8E4, T: 0x8E7)

This signed register contains the real accumulated energy delivered into phase A/B/C or total. The register is calcu-

lated according to the following formula:

ENRPF.X = ENR_CC x (X.EAFPOS - X.EAFNEG)

Fundamental Reactive Energy, Phase A/B/C/T (ENRQF.X)

(A: 0x8F1, B: 0x8F2, C: 0x8F4, T: 0x8F7)

This signed register contains the reactive accumulated energy delivered into phase A/B/C or total. The register is

calculated according to the following formula:

ENRQF.X = ENR_CC x (X.ERFPOS - X.ERFNEG)

PWRSF X

X APPF

PWR CC

×× 216

Byte 7 (MSByte unused)

Byte 6 (unused)

Byte 5

Byte 4

Byte 3

Byte 2

Byte 1

Byte 0 (LSByte)

Byte 7 (MSByte unused)

Byte 6 (unused)

Byte 5

Byte 4

Byte 3

Byte 2

Byte 1

Byte 0 (LSByte)

Byte 7 (MSByte unused)

Byte 6 (unused)

Byte 5

Byte 4

Byte 3

Byte 2

Byte 1

Byte 0 (LSByte)

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