6-2
IM 253421-01E
Continous Integration Mode (Repeat Integration)
• Integration starts:
• after having pressed the START key;
• when the elapsed time of integration reaches the integration timer preset time, the
integrated value and elapsed time of integration are reset automatically and
restarted immediately.
• Integration stops:
• when the elapsed time of integration reaches the integration timer preset time ;
however, the integrated value and elapsed time of integration are reset
automatically and restarted immediately;
• after having pressed the STOP key;
• when the integrated value reaches the maximum of 999999 MWh/MAh, or when
the integrated value of negative polarity reaches –99999 MWh/MAh;
• Integration holds: the elapsed time of integration and integrated values at the point
where they reached the maximum or at the point where the STOP key was pressed
will be held until the RESET key is pressed.
Integrated
value
Start
Reset
Hold
Integration
timer preset
time
Stop
Hold
Integration
timer preset
time
Integration
timer preset
time
Elapsed time
of integration
Integration Methods
Each display update interval (250 ms) the apparent power values or current values are
added to the integrated values, and will be time converted. The integration equations
are as follows.
Power integration
T=0
t
W
i
4
×
3600
Wi: Active power between display update interval
t: Elapsed time of integration
Current integration
T=0
t
A
i
4
×
3600
Ai: Current value between display update interval
t: Elapsed time of integration
6.1 Integrator Functions
