Italfarad S.p.A.
Via IV Novembre n.1 40061 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E
-
mail: [email protected] Web:www.italfarad.com
16
Power Factor Controller
PFC96evo
Front keyboard
Key
-
Used to select among available measurements. Used also to access programming menus.
keys
-
Used to set values and to select steps.
key
-
Used to select opera!ng mode between manual and automa!c.
Display indica!ons
Output
status
Cooling fan
status
Secondary
display
Ac!ve
alarm
Automa!c
mode
Manual
mode
Main
display
Induc!ve /
capaci!ve
Bar
graph
Alphanumeric
display
Step
status
Opera!ng modes
There are two possible opera!ng modes, listed below:
MAN and AUT modes
·
The icons AUT and MAN indicate the opera•ng mode automa•c or manual.
·
To change the mode, press and hold the
bu!on
for 1 sec.
·
The opera•ng mode remains stored even a"er removing and reapplying the power supply voltage.
MAN mode
·
When the unit is in manual mode, you can select one of the steps and manually connected or
disconnect it.
·
In addi•on to the specific icon, the alphanumeric display shows
MAN
in order to highlight the
manual mode condi•on. Press to view the other measurements as usual.
·
While the display shows
MAN
, it is possible to select the step to be switched on or off. To select a
step, use the or bu!ons. The selected step will flash quickly.
·
Press to ac•vate or deac•vate the selected step.
·
If the selected step has not yet exhausted the reconnec•on •me, the icon will flash to
indicate that the transac•on has been accepted and will be conducted as soon as possible.
·
Manual configura•on of the steps is maintained even when the power supply voltage is removed.
When the power returns, the original state of the steps is restored.
MAN
mode
icon
Connected
steps
Tot kvar
inserited in
MAN
Manual step
selec•on
enabled
Select step
Change step status
AUT mode
·
In automa•c mode, the controller calculates the op•mum configura•on of capacitor steps in order
to reach the set cosø.
·
The selec•on criteria takes into account many variables such as: the power of each step, the
number of opera•ons, the total •me of use, the reconnec•on •me, etc.
·
The controller displays the imminent connec•on or disconnec•on of the steps with the flashing of
their iden•fica•on number (le"). The flashing can last in cases in which the inser•on of a step is
not possible due to the reconnec•on •me (discharge •me of the capacitor).
·
The device ini•ates automa•c correc•ons when there is an average reac•ve power request (delta
-
kvar) higher than 50% of the smallest step, and the measured cosø is different from the setpoint.
Voltage
V
RMS voltage of the plant current.
V HI
Maximum voltage value measured.
Measure
Icon
Descrip!on
Delta
-
kvar
Δ
kvar
Kvars needed to reach the cosø setpoint. If delta
-
kvar is posi•ve cpacitors
need to be inserted, if nega•ve to be disconnected.
kvar
Total kvar of the plant.
Δ
STEP
Number of equal steps to achieve the target power factor.
Current
A
RMS current of the plant voltage.
A HI
Maximum current value masured.
Weekly PF
WPF
Weekly average power factor.
PF
Instantaneous total power factor.
THD cap.
THDC
Capacitors total harmonic distor•on (THD) in current.
TC.HI
Maximum THD value measured.
Temperature
°C °F
Temperature of internal sensor.
°CHI
°FHI
Maximum temperature value measured.
Voltage THD
THDV
Total harmonic distor•on % (THD) of plant voltage.
VH02…
...VH15
% voltage harmonic content from 2.nd up to 15.th order
Current THD
THDI
Total harmonic distor•on % (THD) of plant current.
IH02…
…IH15
% Current harmonic content from 2.nd up to 15.th order
Cosø setpoint
IND
CAP
Se'ng of desired cosø setpoint (same as P.19).
Step power
%
❶
Step residual power, as a percentage of the set rated power.
Step counter
OPC
❶
Opera•on counter of the step.
Step hours
H
❶
Hour meter of the step inser•on.
❶
These measures are shown only if the S
tep trimming
func•on is enabled (P.25=ON) and the
advanced password is enabled and entered.
Keypad lock
·
A func•on to exclude all modifica•on to opera•ng parameters can be enabled; measurement
viewing is s•ll provided in any case.
·
To lock and unlock the keypad, press and keep key pressed. Then press the
key
three •mes and the key twice and a"er that release
·
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 opera•ons:
à
Opera•on between automa•c and manual mode
à
Access to set
-
up menus
à
Change of cosø set
-
point
·
By a!emp•ng to conduct the above opera•ons, the display will view
LOC
to indicate the locked
Measurements
·
The
PFC96evo
controller provides a set of measurements displayed on the alphanumeric display, in
conjunc•on with the current cosø that is always displayed on the main display.
·
Press the key to scroll through the measures in rota•on.
·
A"er 30 seconds without pressing any bu!ons, the display automa•cally returns to the default
measurement defined by P.47.
·
If P.47 is set on the ROT, then the measures rotate automa•cally every 5 seconds.
·
At the bo!om of the list of measures it is possible to set the setpoint of the cosø, ac•ng on the
same value set with P.19.
·
Below is a table with the measurements displayed.
Parameter se"ng (SETUP) from panel
To access the programming menu (setup) :
·
To enter parameter programming the unit must be in TEST mode (first programming)
Indica•on
of TEST
mode
Total
number
of steps
Firmware
revision
Model
variant
or in
MAN
mode.
MAN
mode icon
Connected
steps
Tot kvar
inserited in
MAN
Manual
step
selec•on
enabled
·
From the normal measurement display, press and hold for 3 seconds to recall the main
menu.
SET
is displayed on the main display.
·
If you have set the password (P.21 = ON) instead of
SET
the display shows
PAS
(password entry
request). Set the numeric password using and then press to move to next
digit.
·
If the password is correct the unit will show
OK U
or
OK A
depending on the entered password is
user or the advanced level. The password can be defined with parameters P.22 and P.23. Factory
default is
001
and
002
respec•vely.
·
If the entered password is wrong the unit will show
ERR
.
·
A"er having entered the password, the access is enabled un•l the unit is re
-
ini•alized or for 2
minutes without pressing any key.
·
A"er having entered the password, repeat the procedure to access the parameter se#ng.
·
Press to select the desired submenu (
BAS
à
ADV
à
ALA
... ) that is shown on the
alphanumeric display.
E
N
