参数资料
型号: 71M6543F-DB-CT
厂商: Maxim Integrated Products
文件页数: 31/91页
文件大小: 0K
描述: DEMO BOARD 71M6543F-DB-CT
标准包装: 1
系列: *
71M6543 Demo Board User’s Manual
1.10.4 LSB VALUES IN CE REGISTERS
Table 1-9: CE Registers and Associated LSB Values
Register Name
W0SUM_X
W1SUM_X
W2SUM_X
VAR0SUM_X
VAR1SUM_X
VAR2SUM_X
I0SQSUM_X
I1SQSUM_X
I2SQSUM_X
INSQSUM_X
V0SQSUM_X
V1SQSUM_X
V1SQSUM_X
LSB Value
1.55124*10 -12 * IMAX * VMAX
1.55124*10 -12 * IMAX * VMAX
2.55872*10 -12 * IMAX * VMAX
9.40448*10 -13 * IMAX * VMAX
Comment
The real energy for elements A, B, and C, measured in Wh per accu-
mulation interval
The reactive energy for elements A, B, and C, measured in VARh per
accumulation interval
The sum of squared current samples in elements A, B, C, and neutral.
This value is the basis for the I RMS calculation performed in the MPU.
The sum of squared voltage samples in elements A, B, and C.
1.10.5 CALCULATING IMAX AND KH
The relationship between the resistance of the shunt resistors and the system variable IMAX is determined by
the type of Remote Sensor Interface used, and is as follows:
IMAX = 0.044194 / R S for the 71M6603
IMAX = 0.019642 / R S for the 71M61X1
IMAX = 0.012627 / R S for the 71M6203
Where:
R S = Shunt resistance in Ω
Table 1-10 shows IMAX values resulting from possible combinations of the shunt resistance value and the type
of 71M6x0x Remote Sensor Interface used for the application.
Table 1-10: IMAX for Various Shunt Resistance Values and Remote Sensor Types
Remote Sen-
sor Interface
71M6603
71M6103,
71M6113
71M6203,
71M6203
Rated
Current
[A]
60
100
200
Max. RMS
Voltage at
IAP/IAN [mV]
44.2
19.64
12.63
Shunt Re-
sistor Value
[μ Ω ]
500
400
300
250
200
160
120
250
200
160
120
100
75
50
25
IMAX
[A]
88.39
110.49
147.31
176.78
220.97
276.21
368.28
78.57
98.21
122.76
163.68
196.42
168.36
252.54
505.08
IMAX En-
try at MPU
0x03
+884
+1105
+1473
+1768
+2209
+2762
+3683
786
982
1228
1637
1964
1684
2525
5050
WRATE for kH =
3.2, VMAX = 600
V, X = 0.09375
3829
4786
6381
7657
9572
11965
15953
3403
4254
5318
7090
8508
7293
10939
21878
Page: 31 of 91
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