UG-572 Datasheet, PDF (13/20 Pages) Winchester Electronics Corporation – C JACK

EVAL-ADE7978EBZ User Guide
TEMPERATURE MONITOR
The Temperature Measurement window is shown in Figure 19.
This window shows the signal path for the temperature sensor
measurement with a diagram detailing all relevant register
values. In addition, a second signal path shows the current
signal compensation path that uses the temperature
measurement.
• At the top is the Active Data Path. Once the desired phase
to be shown in the window is chosen, all the register values
change.
• The display below the Active Data Path switch shows
the signal path of the temperature measurement on the
selected phase. The window provides access to the registers
managing this path.
• The second display shows the phase current signal path
compensated function of the shunt variation with
temperature. The window provides access to the registers
managing this path.
• To the right, a thermometer provides the temperature value
in °C units. Enter the Temperature Sensor Gain and
Offset values provided in the data sheet into the
corresponding locations.
• Exit returns to the main menu.
• Read reads the current configuration of the ADE7978 and
the temperature register values.
• Write writes the current configuration to the registers
using the selections made.
UG-572
TOTAL ACTIVE POWER
The Total Active Power window is shown in Figure 20. This
window shows the signal path for active power with the
diagram detailing all relevant register values.
• At the top left is Active Data Path. Once the desired phase
to be shown in the window is chosen, all the register values
change.
• ACCMODE register settings is where the accumulation
mode can be changed with ACCMODE.1,0. The con-
nection setup can be changed with ACCMODE.5,4. Total
or fundamental power can be used to trigger interrupt
registers with ACCMODE.6.
• The CONFIG register settings is used to swap the voltage
and current channel outputs.
• Beneath that is a drop-down box, Choose a Phase Voltage,
in which a different phase voltage can be used along with
the phase current to perform calculations.
• To the right of this, No Load Thresholds can be set.
• CFx Configuration opens another window to setup the CF
outputs.
• Read Energy Registers opens another window to read
the energy register with multiple settings (for example,
synchronous with CF, line cycle accumulation).
• Exit returns to the main menu.
• Read reads the current configuration of the part and the
energy register values.
• Write writes the current configuration to the registers.
• At the left, a Read with reset button enables or disables the
register being reset after a read access.
Figure 19. Temperature Measurement Window
Figure 20. Total Active Power Window
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