90E32 Datasheet, PDF (39/71 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
SysStatus1
System Status 1
Address: 02H
Type: Read/Clear
Default Value: 0000H
Bit
Name
15
-
14
INOv0
13-12
-
11
THDUOv
10
THDIOv
9-8
-
7
RevQchgT
6
RevQchgA
5
RevQchgB
4
RevQchgC
3
RevPchgT
2
RevPchgA
1
RevPchgB
0
RevPchgC
Description
Reserved.
This bit indicates whether the calculated N line current is greater than the threshold set by the INWarnTh0 register.
0: Not greater than the threshold (default)
1: Greater than the threshold.
Reserved.
This bit indicates whether one or more voltage THDUx (THDUA/ THDUB/ THDUC) is greater than the threshold set by the THD-
NUTh register.
0: Not greater than the threshold (default)
1: Greater than the threshold.
This bit indicates whether one or more current THDIx (THDIA/ THDIB/ THDIC) is greater than the threshold set by the THDNITh
register.
0: Not greater than the threshold (default)
1: Greater than the threshold.
Reserved.
When there is any direction change of active/reactive energy for all-phase-sum or individual phase (from forward to reverse, or
from reverse to forward), the corresponding status bit is set. The judgment of direction change is solely based on the energy reg-
ister (not related to the CF pulses), and dependent on the energy register resolution (0.01CF / 0.1CF setting set by the 001LSB
bit (b9, MMode0)).
0: direction of active/reactive energy no change (default)
1: direction of active/reactive energy changed
The status bits are RevQchgT/ RevPchgT are status bits for all-phase-sum and RevQchgA/ RevQchgB/ RevQchgC/ RevPchgA/
RevPchgB/ RevPchgC are for individual phase.
Register
39
December 9, 2011