Santerno SINUS PENTA 0007, Manual

Page: 106 / 150

SINUS PENTA
GUIDE TO THE
REGENERATIVE APPLICATION
106/ 150
5.4.2. List of Programmable Parameters P530 to P542 and I003
Parameter FUNCTION User Level
MODBUS
Address
DEFAULT VALUES
P530
Number of Half-line Cycles ENGINEERING 956 10 T/2
P531a/b/c Phase R/S/T Voltage RMS Gain ENGINEERING 958/959/960 0
P532a/b/c Phase R/S/T Current RMS Gain ENGINEERING 961/962/963 0
P533a/b/c Phase R/S/T Active Power Gain ENGINEERING 964/965/966 0
P534a/b/c
Phase R/S/T Reactive Power
Gain
ENGINEERING 967/968/969 0
P535a/b/c Phase R/S/T Voltage RMS Offset ENGINEERING 970/971/972 0
P536a/b/c Phase R/S/T Current RMS Offset ENGINEERING 973/974/975 0
P537a/b/c Phase R/S/T Active Power Offset ENGINEERING 976/977/978 0
P538a/b/c
Phase R/S/T Reactive Power
Offset
ENGINEERING 979/980/981 0
P539a/b/c Phase R/S/T Phase Calibration ENGINEERING 982/983/984 0
P540 NoLoad Threshold ENGINEERING 953 0:Disable
P542 CT Coil Ratio for ADE ENGINEERING 992
See Table 5 and
Table 6
I003 Energy Counter Reset ENGINEERING 1390 Inactive
Table 17: List of parameters P530 to P542 and I003
P530 Number of Half-line Cycles
P530 Range 0

65535 0

65535 T/2
Default 10 10 T/2
Level ENGINEERING
Address 956
Function
This parameter sets the number of half-line cycles for the accumulation of
the active energy and the reactive energy in the respective counters.
Example: when frequency is 50Hz, T=20ms and T/2=10ms; if
P530 =100
T/2, energy is accumulated every 100x10=1s.
If
P530 is set to high values, the calculation of energy accumulation is
slower but accurate; on the other hand, if P530 is set to low values, the
calculation of energy accumulation is faster but less accurate.
As a general rule, set short times when high power ratings are required,
and set longer times when low power ratings are required.
CAUTION
When the number of half-line cycles is set too high, overflow can occur,
especially
in case of high power ratings, thus turning “plus” into “minus”
and vice versa.