ade7854 Analog Devices, Inc., ade7854 Datasheet - Page 64

• Manufacturer Part Number: ade7854
• Description: Poly Phase Multifunction Energy Metering Ic With Neutral Current Measurement
• Manufacturer: Analog Devices, Inc.

ADE7854
Bit
Location
15-9
Table 32. COMPMODE register (address 0xE60E)
Bit
Location
0
1
2
3
4
5
6
7
8
10,9
11
12
13
14
15
Table 33: GAIN register (address 0xE60F)
Bit
2 to 0
5 to 3
8 to 6
15 to 9
Mnemonic
PGA1[2:0]
Reserved
PGA3[2:0]
Bit
Mnemonic
TERMSEL1[0]
TERMSEL1[1]
TERMSEL1[2]
TERMSEL2[0]
TERMSEL2[1]
TERMSEL2[2]
TERMSEL3[0]
TERMSEL3[1]
TERMSEL3[2]
ANGLESEL[1:0]
VNOMAEN
VNOMBEN
VNOMCEN
SELFREQ
Reserved
Bit
Mnemonic
Reserved
Default
value
1
1
1
1
1
1
1
1
1
00
0
0
0
0
0
Default
000
000
000
000 0000
Default
value
000 0000
Description
Setting all TERMSEL1[2:0] to 1 signifies the sum of all 3 phases is included in CF1 output
Phase A is included in CF1 outputs calculations
Phase B is included in CF1 outputs calculations
Phase C is included in CF1 outputs calculations
Setting all TERMSEL2[2:0] to 1 signifies the sum of all 3 phases is included in CF2 output
Phase A is included in CF2 outputs calculations
Phase B is included in CF2 outputs calculations
Phase C is included in CF2 outputs calculations
Setting all TERMSEL3[2:0] to 1 signifies the sum of all 3 phases is included in CF3 output
Phase A is included in CF3 outputs calculations
Phase B is included in CF3 outputs calculations
Phase C is included in CF3 outputs calculations
-00:the angles between phase voltages and phase currents are measured
-01: the angles between phase voltages are measured
-10: the angles between phase currents are measured
-11: no angles are measured
When this bit is 0, the apparent power on phase A is computed regularly. When this bit is 1, the
apparent power on phase A is computed using VNOM[23:0] register instead of regular measured
rms phase voltage.
When this bit is 0, the apparent power on phase B is computed regularly. When this bit is 1, the
apparent power on phase B is computed using VNOM[23:0] register instead of regular measured
rms phase voltage.
When this bit is 0, the apparent power on phase C is computed regularly. When this bit is 1, the
apparent power on phase C is computed using VNOM[23:0] register instead of regular measured
rms phase voltage.
When the ADE7854 is connected to 50Hz networks, this bit should be cleared to 0 (default
value). When the ADE7854 is connected to 60Hz networks, this bit should be set to 1.
This bit does not manage any functionality.
Description
(VANLOAD) in STATUS1[31:0].
These bits are always 0.
Description
Phase currents gain selection
-000: gain=1
-001: gain=2
-010: gain=4
-011: gain=8
-100: gain=16
-101, 110, 111: reserved. When set, the ADE7854 behaves like PGA1 [2:0]=000
These bits do not manage any functionality.
Phase voltages gain selection
-000: gain=1
-001: gain=2
-010: gain=4
-011: gain=8
-100: gain=16
-101, 110, 111: reserved. When set, the ADE7854 behaves like PGA3 [2:0]=000
Reserved. These bits do not manage any functionality.
Rev. PrC| Page 64 of 71
Preliminary Technical Data