90E32 Datasheet, PDF (51/71 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
MMode0
Metering method configuration
Address: 33H
Type: Read/Write
Default Value: 0087H
Bit
Name
15-14
-
13
I1I3Swap
12
Freq60Hz
11
HPFOff
10
didtEn
9
001LSB
8
3P3W
7
CF2varh
6
-
5
-
4
ABSEnQ
3
ABSEnP
2
EnPA
1
EnPB
0
EnPC
Description
Reserved.
This bit defines phase mapping for I1 and I3:
0: I1 maps to phase A, I3 maps to phase C (default)
1: I1 maps to phase C, I3 maps to phase A
Note: I2 always maps to phase B.
Current Grid operating line frequency.
0: 50Hz (default)
1: 60Hz
Disable HPF in the signal processing path.
Enable Integrator for didt current sensor.
0: disable (default)
1: enable
Energy register LSB configuration for all energy registers:
0: 0.1CF (default)
1: 0.01CF
This bit defines the voltage/current phase sequence detection mode:
0: 3P4W (default)
1: 3P3W (Ua is Uab, Uc is Ucb, Ub is not used)
CF2 pin source:
0: apparent energy
1: reactive energy (default)
Reserved.
Reserved.
These bits configure the calculation method of total (all-phase-sum) reactive/active energy and power:
0: Arithmetic sum: (default)
ET=EA*EnPA+ EB*EnPB+ EC*EnPC
PT= PA*EnPA+ PB*EnPB+ PC*EnPC
1: Absolute sum:
ET=|EA|*EnPA+ |EB|*EnPB+ |EC|*EnPC
PT=|PA|*EnPA+ |PB|*EnPB+ |PC|*EnPC
Note: ET is the total (all-phase-sum) energy, EA/EB/EC are the signed phase A/B/C energy respectively. Reverse energy is neg-
ative. PT is the total (all-phase-sum) power, PA/PB/PC are the signed phase A/B/C power respectively. Reverse power is nega-
tive.
These bits configure whether Phase A/B/C are counted into the all-phase sum energy/power (P/Q/S).
1: Corresponding Phase A/B/C to be counted into the all-phase sum energy/power (P/Q/S) (default)
0: Corresponding Phase A/B/C not counted into the all-phase sum energy/power (P/Q/S)
Register
51
December 9, 2011