4
Measures (continued)
– Below is a table with the measurements displayed.
Measure Icon Description
Delta–kvar Δ kvar Kvars needed to reach the cosphi setpoint.
If delta-kvar is positive cpacitors need to be
inserted, if negative to be disconnected.
kvar Total kvar of the plant.
Δ STEP Number of equivalent steps.
Voltage V RMS voltage of the plant current.
V HI Maximum peak of measure.
Current A RMS current of the plant voltage.
A HI Maximum peak of measure.
Weekly PF WPF Weekly average power factor.
PF Instantaneous total power factor.
Cap. current %C.CU Calculated capacitor current, in % of their
nominal.
%C.HI Maximum peak of measure.
Temperature °C °F Temperature of internal sensor.
°CHI
°FHI
Maximum peak of measure.
Voltage THD THDV Total harmonic distortion % (THD) of plant
voltage.
VH02…
...VH1
5
% voltage harmonic content from 2.nd up to
15.th order
Current THD THDI Total harmonic distortion % (THD) of plant
current.
IH02…
…IH15
% Current harmonic content from 2.nd up to
15.th order
Cosphi setpoint IND
CAP
Setting of desired cosphi setpoint (same as
P.19).
Keypad lock
– A function to exclude all modification to operating parameters can be enabled; measurement viewing is still provided in any case.
– To lock and unlock the keypad, press and keep MODE key pressed.
Then press the ▲ key three times and the ▼ key twice and after that release MODE.
– The display will show LOC when the keypad is locked and UNL when it is unlocked.
– When the lock is enabled, it is not possible to make the following operations:
• Operation between automatic and manual mode
• Access to set-up menus
• Change of cosphi set-point
– By attempting to conduct the above operations, the display will view LOC to indicate the locked keypad state.
2014-AT3-5-01-ANG.indd 4 20/03/14 11:46
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