LEGRAND ALPTEC 8.2 User Manual

6
CONTENTS
8  MEASUREMENTS
- ALPTEC provides a set of measurements displayed on the alphanumeric screen, related to the cos phi which is always displayed on the main screen.
- The button is used to access the various measurements detailed below:
Measurement Icon Description
Delta–kVAr ΔKVAR kVArs needed to reach the setpoint cos phi. If >0,
steps will be activated, if <0 they will be disconnected
KVAR Total installation kVAr.
Δ STEP Number of equivalent steps.
Voltage V Installation RMS voltage.
V HI Maximum voltage value.
Current A Installation RMS current.
A HI Maximum voltage value.
Weekly PF WPF Average weekly Cos phi.
PF Instantaneous Cos phi
Cap. current %C.CU Calculation of the capacitor current, as a % of its
nominal value.
%C.HI Maximum measurement value.
Temperature °C °F Temperature.
°CHI
°FHI
Maximum measurement value.
Voltage THD THDV Installation Voltage Total Harmonic Distortion %
(THD).
VH02…
...VH15
Individual voltage harmonic, %, from order 2 to
order15.
Current THD THDI Installation Current Total Harmonic Distortion % (THD).
IH02…
…IH15
Individual current harmonic, %, from order 2 to
order15.
Cos phi setpoint LEAD
LAG
Cos phi setpoint setting
Step power
(1)
% Step residual power as a % of the nominal value
Step counter
(1)
OPC Number of step activations
Step hours
(1)
H Number of step operating hours
- After 30 seconds without any key being pressed, the display automatically returns to the default measurement dened by parameter P.47
- At the bottom of the list of measurements, the cos phi setpoint can be set, acting on the same value dened with parameter P.19
(1) These measurements are only eective if the "step trimming" function is enabled (P25=ON) and the advanced password has been entered.
9  KEYBOARD LOCK/UNLOCK
- The keyboard can be locked/unlocked to prevent parameter modications being authorised (switching between modes and , access to the setting
menus, modication of the cos phi setpoint), while still allowing the measurements to be viewed.
- Hold down .
- Press 3 times on then twice on .
- Release .
- The main screen indicates LOC when the keyboard is locked and UNL when it is unlocked.
- If one of the parameter modication operations is attempted with the keyboard locked, the main screen will indicate LOC.

LEGRAND ALPTEC 8.2 Specifications

General

Brand	LEGRAND
Model	ALPTEC 8.2
Category	Controller
Language	English