71M6534 MAXIM [Maxim Integrated Products], 71M6534 Datasheet - Page 104

• Manufacturer Part Number: 71M6534
• Description: Exceeds IEC 62053/ANSI C12.20 Standards
• Manufacturer: MAXIM [Maxim Integrated Products]

5.3.11 Noise Suppression and Version Parameters
Table 65
5.3.12 CE Calibration Parameters
Table 66
104
Address
Address
0x2A
0x2B
0x2C
0x2E
0x2F
0x26
0x27
0x28
0x30
0x35
0x36
0x37
0x1A
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x18
0x19
CE
CE
lists the parameters that are typically entered to effect calibration of meter accuracy.
shows the CE parameters used for suppression of noise due to scaling and truncation effects.
QUANT_VARC
QUANT_VARA
QUANT_VARB
PHADJ_A
PHADJ_B
PHADJ_C
CAL_VC
QUANT_IC
CAL_VA
CAL_VB
QUANT_IA
QUANT_IB
CAL_IA
CAL_IB
CAL_IC
CAL_ID
Name
QUANTA
QUANTB
QUANTC
Name
Table 65: CE Parameters for Noise Suppression and Code Version
0x63653333
0x61303463
0x00000000
Default
16384
16384
16384
16384
16384
16384
16384
Default
0
0
0
0
0
0
0
0
0
0
0
0
Table 66: CE Calibration Parameters
Description
These constants control the gain of their respective channels. The
nominal value for each parameter is 2
channel is directly proportional to its CAL parameter. Thus, if the
gain of a channel is 1% slow, CAL should be increased by 1%.
CAL_ID is used to calibrate the neutral current input.
These constants control the CT phase compensation. No com-
pensation occurs when PHADJ_X = 0. As PHADJ_X is increased,
more compensation (lag) is introduced. The range is ± 2
is desired to delay the current by the angle Φ, the equations are:
Description
These parameters are added in channel A to the Watt calculation
to compensate for input noise and truncation.
These parameters are added to the VAR calculation for element
A and B to compensate for input noise and truncation.
These parameters are added to compensate for input noise and
truncation in their respective channels in the squaring calculations
for I
Text strings holding the CE version information as supplied by
the CE data associated with the CE code. For example, the
words 0x63653333 and 0x61303463 form the text string
“ce33a04c”.
These locations are overwritten in operation.
PHADJ
PHADJ
LSB = (VMAX*IMAX / In_8) *1.04173*10
LSB=VMAX
LSB= (IMAX
LSB = (VMAX*IMAX / In_8) * 1.04173*10
2
and V
_
_
X
X
2
=
.
=
2
2
20
2
20
2
*5.08656*10
/In_8
. 0
. 0
1241
1487
. 0
2
. 0
)* 5.08656*10
02229
−
0155
−
. 0
. 0
009695
0131
⋅
-13
TAN
⋅
TAN
V
⋅
2
Φ
⋅
TAN
Φ
TAN
and
14
-13
= 16384. The gain of each
Φ
Φ
A
at 60Hz
2
at 50Hz
-9
-9
W
W
15
– 1. If it
Rev 2