Maxim Integrated 6613_PSU_1+1S_URT_v1_00 User Manual
Page 30
6613_PSU_1+1S_URT_V1_00 Firmware Description Document
UG_6613_040
30
Rev. 1.0
CE
Parameter
Location(
hex)
LSB
Default
Comment
Example
WRATE
0F
Kh =
VMAX A *
IMAX A /
(WRATE *
X)
1.6826E+0
1 WattSec
+4860
Controls the
number of pulses
that are generated
per measured Wh
and VARh
measurements.
]0F=+4860
Kh = 0.32 * Wh / pulse with X = 6/64,
VMAX =600 V
and
IMAX = 52 A
Reserved
10
Reserved
SAG
Threshold
11
VMAX A
*4.2551E-
07 (Vpk)
+168225
The voltage
threshold for SAG
warnings. The
default value is 80
Vpk if VMAX = 600
V.
]11=+313350
80 Vpk SAG Threshold.
QUANTA
12
VMAX A *
IMAX A *
1.8541E-
10 (Watt)
0
Compensation
added to the Watt
calculation. Used
for compensation at
low current levels.
Keep below
10000d.
Unused
13-15
QUANT IA
16
(IMAX A)
2
*
4.6351E-11
(A
2
)
0
IA input
compensation
added for input
noise and
truncation in the
squaring calculation
for I
2
. Used for
compensation at
low current levels.
Keep below
10000d.
Unused
17
AC Cycle
Count
18
1
+4
Number of AC
cycles for
accumulation
interval (min=4)
To changes accumulation interval to 10
AC cycles:
]18=+10
Note: Set value of AC cycles between 4
and 100/120 (for 50/60Hz respectively).
Gain Adjust
19
16384 is
the default
and is a
gain of 1.
+16384
32767 is max giving
a
gain of 2.
To increase all channels equally by 1%
scale the nominal number, 16384 by
1/(1-0.01). Number to be entered would
be 16549:
]19=+16549
To decrease all channels 1% scale the
nominal number, 16384 by 1/(1+0.01).
Number to be entered would be 16222:
]19=+16222
Reserved
1A-1B
–
–
Reserved
Reserved