Datasheet

90E36A POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 52 April 2, 2013
MMode0
Metering method configuration
Address: 33H
Type: Read/Write
Default Value: 0087H
Bit Name Description
15-14 - Reserved.
13 I1I3Swap
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.
12 Freq60Hz
Current Grid operating line frequency.
0: 50Hz (default)
1: 60Hz
11 HPFOff Disable HPF in the signal processing path.
10 didtEn
Enable Integrator for didt current sensor.
0: disable (default)
1: enable
9 001LSB
Energy register LSB configuration for all energy registers:
0: 0.1CF (default)
1: 0.01CF
83P3W
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)
7CF2varh
CF2 pin source:
0: apparent energy
1: reactive energy (default)
6 CF2ESV
This bit is to configure the apparent energy type in power factor calibration, and in CF2 output if apparent energy is selected by
setting CF2varh=0.
0:All-phase apparent energy arithmetic sum (default)
1:All-phase apparent energy vector sum
5-Reserved.
4 ABSEnQ
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.
3 ABSEnP
2EnPA
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)
1EnPB
0EnPC