Maxim Integrated 71M6513H Power Meter IC Family Software - Manual (Page 79)

71M651x Software User’s Guide
Note that the values for IMAX2, ICREEP2, and WCREEP2 are closely coupled: When entering a different value for
IMAX2, ICREEP2 and WCREEP2 should be changed accordingly, if the accuracy of the creep detection is of interest.
XRAM
Word
Address
Default
Value
Name Description
0x2B 2080 IMAX2
The nominal external RMS current that corresponds to 250mV peak
at the IB input. The meter uses this value to convert internal quanti-
ties to external. LSB=0.1A
0x2C 61 ICREEP2
If the squared current (ISQSUM from the CE) of phase B is below
ICREEP2, the sample values for phase B are zeroed. In that case,
the accumulators for Wh, VARh, and VAh are not updated and the
instantaneous value of IRMS for phase B is zeroed. The default
value corresponds to 0.00636A
2 (80mA), if the default setting for
IMAX2 is used.
LSB = 6.6952*10
-13 IMAX2 2 Wh
0x2D 8311 WCREEP2
If WSUM_2 or VARSUM_2 are below WCREEP2, the sample values
for phase B are zeroed. In that case, the accumulators for Wh,
VARh, and VAh are not updated and the instantaneous value of
IRMS for phase B is zeroed. The default value corresponds to 2.5W,
if the default settings for VMAX and IMAX2 are used.
LSB = 6.6952*10
-13 VMAX IMAX2 Wh
Table 5-11: MPU Variables Related to Phase B (6511, Revision 3.05 only)
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