User guide
CS5480
DS980F3 51
6.6.25 System Gain (Sys
GAIN
) – Page 16, Address 60
Default = 0x50 0000 (1.25)
System Gain (Sys
GAIN
) is applied to all channels.
By default, Sys
GAIN
= 1.25, but can be finely adjusted to compensate for voltage reference error. It is a two's
complement value in the range of -2.0value2.0, with the binary point to the right of the second MSB. Values
should be kept within 5% of 1.25.
6.6.26 Rogowski Coil Integrator Gain (Int
GAIN
) – Page 18, Address 43
Default = 0x14 3958
Gain for the Rogowski coil integrator. This must be programmed accordingly for 50Hz and 60Hz (0.158 for
50Hz, 0.1875 for 60Hz).
This is a two's complement value in the range of -1.0value1.0, with the binary point to the right of the MSB.
Negative values are not used.
6.6.27 System Time (Time) – Page 16, Address 61
Default = 0x00 0000
System Time (Time) is measured in OWR samples.
This is an unsigned integer in the range of 0 to 16,777,215 samples. At OWR = 4.0kHz, OWR will overflow
every 1 hour, 9 minutes, and 54 seconds. Time can be used by the application to manage real-time events.
6.6.28 Voltage 1 Sag Duration (V1Sag
DUR
) – Page 17, Address 0
Default = 0x00 0000
Voltage 1 Sag Duration, V1Sag
DUR
, determines the count of OWR samples utilized to determine a sag event.
These are integers in the range of 0 to 8,388,607 samples. A value of zero disables the feature.
MSB LSB
-(2
1
)2
0
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
.....
2
-16
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
MSB LSB
-(2
0
)2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
MSB LSB
2
23
2
22
2
21
2
20
2
19
2
18
2
17
2
16
.....
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSB LSB
0
2
22
2
21
2
20
2
19
2
18
2
17
2
16
.....
2
6
2
5
2
4
2
3
2
2
2
1
2
0