ITALFARAD PFC96evo Fiche technique

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APPARECCHIATURE AUTOMATICHE DI RIFASAMENTO

MANUALE OPERATIVO D’INSTALLAZIONE

USO E MANUTENZIONE

AUTOMATIC POWER FACTOR CORRECTION EQUIPMENT

OPERATING AND INSTALLATION MANUAL

USE AND MAINTENANCE

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1. General remarks

The automa•c power factor correc•on equipments type PF

are used to keep the power factor to an average value higher

than an expected one.

The regula•on is obtained by means of a suitable electronic

regulator of reac•ve power with high sensibility and

precision.

The equipment consist of capacitors banks which are

connected and disconnected automa•cally, depending on

the reac•ve power required by the load, by mean of special

contactors.

The capacitors are single phase or three phase type,

provided with discharge resistors and overpressure safety

device, in compliance with the IEC Standards.

The enclosure is of steel cabinet, painted with epoxy resins

with minimum protec•on degree IP30.

2. Connec•on to the network

The three phases of the network must be connected

respec•vely to R (L1), S (L2) and T (L3) terminals onto the

main switch.

For earthing the bar on the right side of the equipment, or

the earth terminal, must be used.

Terminals K (S1) and L (S2) must be connected to the

secondary of a Current Transformer (CT) with secondary

current 5A connected on the phase R (L1) (see Fig.1).

In order to work properly the equipment must be connected

as indicated in Fig.1; on the same page some typical

connec•on mistakes are shown.

Index Page

General remarks 13

Connec!on to the network 13

Start and use 13

Control of the automa!c opera!on 14

Maintenance 14

Connec!on diagram 15

CT Connec!on place 15

Power factor controller PFC96evo 16

Power factor controller PFC144evo 19

Maintenance log 22

3 Start and use

ATTENTION"

Before switching to the equipment on, check the correct

•ghtening of all the connec•ons. Repeat this opera•on

periodically.

At the ﬁrst switch on, the controller will show the indica•on

“Ct”.

Press “+“ and “-” (controller type PFC) or “↑” and

“↓” (controller type PFCevo) to set the value of the primary

current of the CT. Press manual/automa•c bu#on to validate

the value.

If regulator is correcty installed the equipment connects and

disconnects automa•cally the capacitor banks according to

the load varia•on; in this case the number of banks

connected is evidence by the leds STEP on the regulator.

If during the ﬁrst installa•on, the regulator of reac•ve power

would show a capaci•ve load and no banks have been

connected, the CT has been installed on the wrong phase

(see ﬁg. 1 and 2).

In order to avoid that the limits of overtemperature are

passed inside the cabinet, the reac•ve power regulator starts

the fan when temperature is higher than the threshold.

If the temperature inside the cabinet, in spite of the cooling

due to the fan opera•on, reaches 50°C, all the banks are

disconnected and a remote signal alarm is ac•vated.

In the equipments which are equipped with SPC2 device, the

ven•la•on and the alarm signal are generated by SPC2.

ATTENTION!

Using the manual control please wait at least 1 minute

before connec•ng the same bank again.

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4. Control of the automa•c opera•on

The check of the correct opera•on of the automa•c

regulator can be eﬀected by modifying the load condi•ons in

a suitable way.

If the opera•on is not correct the reason should be founded

among one of the following errors:

· CT connected on the wrong phase (see Fig.2).

· CT installed between the equipment and the load (see

Fig.2).

· CT inserted on the supply cables of the power factor

correc•on equipment (see Fig.2).

· Defec•ve or unsuitable CT.

5.1 Connec•on in installa•on provided with power

generator (PV or co-generator)

Before carry out the veriﬁca•on in accordance with point 5,

it is necessary to follow the following indica•ons:

1. change the se#ng parameters:

· For controller type PFC, P12 parameter, set “Dir” or

“Inv” (the value which give the correct measurement

of the Power Factor).

· For controller type PFCevo, P04 parameter, set “Dir”

or “Inv” (the value which give the correct

measurement of the Power Factor).

2. switch oﬀ the power generator un•l the veriﬁca•on of the

PFC equipment has been completed.

3. A$er the comple•on of the PFC equipment veriﬁca•on,

the power generator can be switched on.

5. Maintenance

Periodical check must be carried out on:

· Current drawn by every single step, in order to keep the

opera•ng condi•ons of the equipment always under

control.

· All electronic parts (reac•ve power regulator and

protec•on module, if present) in order to check their

eﬃciency.

· Protec•on fuses on the auxiliary circuits.

· Protec•on fuses on the capacitor banks (provided with

signal).

· The eﬃciency of the coolong system, checking that the

fans are not defec•ve or mechanically blocked and

cleaning with an air jet the relevamt grilles.

· The eﬃciency of the contactors, by replacing those which

are defec•ve and periodically checking the •ghtening of

the terminals.

· The presence of capacitors with overpressure device

tripped (these single phase units must be replaced to do

not jeopardize the performance of the complete

equipment).

This last check is par•cularly important for .../A and ../HA

where checking that the tuning frequency of the ﬁlter does

not change in the •me, is basical; even using high quality

components, it can occur that some capacitor fails causing

the trip of the overpressure safety device.

The consequent loss of capacitance may cause a change of

the tuning frequency of the ﬁlter with consequent dangerous

overloads.

In view of the above, a periodical test has to be carried out

to check the presence of capacitors with tripped

overpressure device (these have an expansion of the upper

part of the case) replacing them with new capacitors.

In order to prevent possible reduc•on of the original

capacitance values (this phenomena can involve more than a

capacitor) it is useful to check during the installa•on, a$er

the ﬁrst month of opera•on and then two or three •me a

year, the current adsorbed by the banks, connec•ng them

manually with no load condi•on and taking note of the

results on the maintenance form.

Big diﬀerences in measures or eventual unbalances of the

three phases show the need of a special maintenance.

ATTENTION!

Further to the check of the correct thighteing af all the

connec"on, periodically clean the equipment inside by

removing possible dust not compa"ble with the good

opera"on of the equipment.

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Italfarad S.p.A. Via IV Novembre n.1 40061 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: italfarad@italfarad.com Web:www.italfarad.com16

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 VRMS voltage of the plant current.

V HI Maximum voltage value measured.

Measure Icon Descrip!on

Delta-kvar Δkvar 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.

ΔSTEP Number of equal steps to achieve the target power factor.

Current ARMS 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

%❶Step residual power, as a percentage of the set rated power.

Step counter

OPC ❶ Opera•on counter of the step.

Step hours

H❶ Hour meter of the step inser•on.

❶ These measures are shown only if the Step 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 (BASà ADVà ALA ... ) that is shown on the

alphanumeric display.

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· The following table lists the available submenus:

Cod Descrip on

BAS Access to Base menu

ADV Accesso to Advanced menu

ALA Accesso to Alarm menu

CMD Access to Command menu

CUS Access to Custom menu

SAVE Exits saving modiﬁca"ons.

EXIT Exits without saving (cancel)

· Press to access the submenu.

· When you are in a submenu, the main display shows the code of the selected parameter (eg P.01 ),

while the numeric/alphanumeric displays at the bo#om of the screen shows the parameter value

and / or descrip"on.

· Press to advance in the selec"on of items (such as scroll through parameters P.01 à P02 à

P03… ), or press to go back to the previous parameter.

· While a parameter is selected, with you can increase/decrease its value.

Backward Decrement/increment Forward

· Once you reach the last parameter of the menu, by pressing once more will return you to

the submenu selec"on.

· Using select SAVE to save the changes or EXIT to cancel.

· Alterna"vely, from within the programming, holding for three seconds will save the

changes and exit directly.

· If the user does not press any key for more than 2 minutes, the system leaves the setup automatically and

goes back to normal viewing without saving the changes done on parameters (like EXIT).

· N.B.: a backup copy of the setup data (se$ngs that can be modiﬁed using the keyboard) can be

saved in the eeprom memory of the PFC96evo regulator. This data can be restored when necessary

in the work memory. The data backup 'copy' and 'restore' commands can be found in the

Commands menu.

Parameter!table

· Below are listed all the programming parameters in tabular form. For each parameter are indicated

the possible se$ng range and factory default, as well as a brief explana"on of the func"on of the

parameter. The descrip"on of the parameter shown on the display can in some cases be diﬀerent

from what is reported in the table because of the reduced number of characters available. The

parameter code can be used however as a reference.

· Note: the parameters shown in the table with a shaded background are essen!al to the opera"on

of the system, thus they represent the minimum programming required for opera"on.

COD DESCRIPTION ACC UoM DEF RANGE

P.01 CT primary Usr AOFF OFF / 1...10.000

P.02 CT secondary Usr A51 / 5

P.03 CT read phase Usr L1 L1 -L2– L2

P.04 CT wiring polarity Usr Aut Aut -Dir -Inv

P.05 Voltage read phase Usr L2-L3 L1-L2 L2-L3 L3-L1 L1-N L2-N L3-N

P.06 Smallest step power Usr Kvar 1.00 0.10 ... 10000

P.07 Rated installa"on voltage Usr V400V 50 ... 50000

P.08 Nominal frequency Usr Hz Aut Aut -50Hz -60Hz -Var

P.09 Reconnec"on "me Adv sec 60 1 … 30000

P.10 Sensi"vity Usr sec 60 1 … 1000

P.11 Step 1 func"on Usr OFF OFF -1…32 -ON -NOA -NCA -FAN

MAN -AUT -A01…A12

P.12 Step 2 func"on Usr OFF =

P.13 Step 3 func"on Usr OFF =

P.14 Step 4 func"on Usr OFF =

P.15 Step 5 func"on Usr OFF =

P.16 Step 6 func"on Usr OFF =

P.17 Step 7 func"on Usr OFF =

P.19 Cos-phi setpoint Usr 0.95 IND 0.50 Ind – 0.50 Cap

P.20 Alarm messages language Usr ENG ENG -ITA -FRA -SPA -POR -DEU

Base!menu

P.01 -The value of the primary current transformer. Example: with CT 800/5 set 800. If set to OFF,

a&er the power-up the device will prompt you to set the CT and allow direct access to this

parameter.

P.02 -Value of the secondary of the current transformers. Example: with CT 800/5 set 5.

P.03 – It deﬁnes on which phase the device reads the current signal. The wiring of current inputs must

match the value set for this parameter. Supports all possible combina"ons of parameter P.05.

P.04 -Reading the connec"on polarity of the CT.

AUT = Polarity is automa"cally detected at power up. Can only be used when working with

only one CT and when the system has no generator device.

Dir = Automa"c detec"on disabled. Direct connec"on.

Inv = Automa"c detec"on disabled. Reverse wiring.

P.05 -Deﬁnes on which and on how many phases the device reads the voltage signal. The wiring of

voltage inputs must match the se$ng for this parameter. Supports all possible combina"ons

of parameter P.03.

P.06 -Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the

capacitor bank provided at the rated voltage speciﬁed in P.07 (exemple: step 10kvar-460V

supplied 400V → 10 x (400)2/(460)2→ set 7,5kvar).

P.07 -Installa"on rated voltage, which is delivered in speciﬁed power P.06.

P.08 -Working frequency of the system:

Aut = automa"c selec"on between 50 and 60 Hz at power on.

50Hz = ﬁxed to 50 Hz.

60Hz = ﬁxed to 60 Hz.

Var = variable, measured con"nuously and adjusted.

P.09 -Minimum "me that must elapse between the disconnec"on of one step and the subsequent

reconnec"on both in MAN or AUT mode. During this "me the number of the step on the main

page is blinking.

P.10 -Connec"on sensi"vity. This parameter sets the speed of reac"on of the controller. With small

values of P.10 the regula"on is fast (more accurate around the setpoint but with more step

swithchings). With high values instead we’ll have slower reac"ons of the regula"on, with fewer

switchings of the steps. The delay "me of the reac"on is inversely propor"onal to the request

of steps to reach the setpoint: wai"ng "me = (sensi"vity / number of steps required).

Example: setting the sensitivity to 60s, if you request the insertion of one step of weight 1 are

expected 60s (60/1 = 60). If instead serve a total of 4 steps will be expected 15s (60/4 = 15).

P11 ... P18 -Func"on of output relays 1 ... 8:

OFF = Not used .

1 .. 32 = Weight of the step. This relay drives a bank of cpacitors which power is n "mes (n =

1…32) the smallest power deﬁned with parameter P.06.

ON = Always on.

NOA = Alarm normally de-energized. The relay is energized when any alarm with the Global

alarm property arises.

NCA = Alarm normally energized. The relay is de-energized when any alarm with the Global

alarm property arises.

FAN = The relay controls the cooling fan.

MAN = Relay is energized when device is in MAN mode.

AUT = Relay is energized when device is in AUT mode.

A01 ... A12= The relay is energized when the alarm speciﬁed is ac"ve.

P19 -Setpoint (target value) of the cosø. Used for standard applica"ons.

P20 -Language of scrolling alarm messages.

Advanced menu

COD DESCRIPTION PSW UoM DEF RANGE

P.21 Password enable Adv OFF OFF

P.22 User password Usr 001 0-999

P.23 Advanced password Adv 002 (*) 0-999

P.24 Wiring type Usr 3PH 3PH three-phase

1PH single-phase

P.25 Step trimming Usr ON ON Enabled

OFF Disabled

P.26 Setpoint clearance + Usr 0.00 0 – 0.10

P.27 Setpoint clearance - Usr 0.00 0 – 0.10

P.28 Step inser"on mode Usr STD STD Standard

LIN Linear

P.29 Cogenera"on cosø setpoint Usr OFF OFF /

0.50 IND – 0.50 CAP

P.30 Disconnec"on sensi"vity Usr sec OFF OFF / 1 – 600

P.31 Step disconnec"on passing in MAN Usr OFF OFF Disabled ; ON Enabled

P.32 Capacitor current overload alarm threshold Adv %50 OFF / 0...150

P.33 Capacitor overload immediate

disconnec"on threshold Adv %83 OFF / 0.. 200

P.34 VT primary Usr VOFF OFF / 50-50000

P.35 VT secondary Usr V100 50-500

P.36 Temperature UoM Usr °C °C °Celsius ; °F °Fahrenheit

P.37 Fan start temperature Adv °25 0 .. 100°C ; (32...212°F)

P.38 Fan stop temperature Adv °20 0 .. 100°C ; (32...212°F)

P.39 Temperature alarm threshold Adv °55 50 .. 100°C ; (122...212°F)

P.41 Maximum voltage alarm threshold Adv %110 OFF / 90...150

P.42 Minimum voltage alarm threshold Adv %90 OFF / 60..110

P.43 THD V alarm threshold Adv %6OFF / 1..250

P.44 THD I alarm threshold Adv %12 OFF / 1..250

Power Factor Controller PFC96evo

Italfarad S.p.A. Via IV Novembre n.1 40061 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: italfarad@italfarad.com Web:www.italfarad.com18

Power Factor Controller PFC96evo

COD DESCRIPTION PSW UoM DEF RANGE

P.45 Maintenance interval Adv h9000

8760(**) 1 -30000

P.46 Bar-graph func!on Usr Kvar ins/tot

Kvar ins/tot

Corr a"/nom

Delta kvar a"/tot

P.47 Default auxiliary measure Usr Week TPF

Deltakvar

Week TPF

Cap. Current

Temp

THDV

THDI

ROT

P.48 Backlight ﬂashing on alarm Usr OFF OFF

P.49 Serial node address Usr 01 01-255

P.50 Serial speed Usr bps 9.6k

1.2k

2.4k

4.8k

9.6k

19.2k

38.4k

P.51 Data format Usr 8 bit – n

8 bit, no parity

8 bit, odd

8bit, even

7 bit, odd

7 bit, even

P.52 Stop bits Usr 11-2

P.53 Protocol Usr Modbus

RTU

Modbus RTU

Modbus ASCII

P.54 Number of inser!ons for maintenance Adv kcnt OFF OFF/1...60

P.21 – If set to OFF, password management is disabled and anyone has access to the se"ngs and

commands menu.

P.22 – With P.21 enabled, this is the value to specify for ac!va!ng user level access. See Password

access chapter.

P.23 – As for P.22, with reference to Advanced level access.

(*) Available value only if the controller is not installed on the ITALFARAD cabinet

P.24 – Number of phases of the power correc!on panel.

P.25 -Enables the measurement of the actual power of the step, performed each !me they are

switched in. The measure is calculated, as the current measurement is referred to the whole

load of the plant. The measured power of the steps is adjusted (trimmed) a#er each switching

and is displayed on the step life sta!s!c page. When this func!on is enabled, a 15 sec pause is

inserted between the switching of one step and the following, necessary to measure the

reac!ve power varia!on.

P.26 – P.27 -Tolerance around the setpoint. When the cosø is within the range delimited by these

parameters, in AUT mode the device does not connect / disconnect steps even if the

delta-kvar is greater than the smallest step.

P.28 -Selec!ng mode of steps inser!on.

Standard mode -Normal opera!on with free selec!on of the steps

Linear mode -the steps are connected in progression from le# towards right only following

the step number and according to the LIFO (Last In First Out) logic. The controller will not

connect a step when the system steps are of diﬀerent ra!ngs and by connec!ng the next step,

the set-point value would be exceeded.

P.29 -Setpoint used when the system is genera!ng ac!ve power to the supplier (with nega!ve ac!ve

power / power factor ).

P.30 -Disconnec!on sensi!vity. Same as the previous parameter but related to disconnec!on. If set

to OFF the disconnec!on has the same reac!on !me of connec!on set with the previous

parameter.

P.31 -If set to ON, when switching from AUT mode to MAN mode, steps are disconnected in

sequence.

P.32 – Trip threshold for the capacitors overload protec!on (alarm A08), that will arise a#er a

integral delay !me, inversely propor!onal to the value of the overload.

Note: You can use this protec!on only if the capacitors are not equipped with ﬁltering

devices such as inductors or similar.

P.33 -Threshold beyond which the integral delay for tripping of the overload alarm is zeroed,

causing the immediate interven!on of the A08 alarm.

P.34 – P.35 – Data of VTs eventually used in the wiring diagrams.

P.36 – Unit of measure for temperature.

P.37 – P.38 -Start and stop temperature for the cooling fan of the panel, expressed in the unit set

by P.36. The cooling fan is started when the temperature is >= to P.37 and it is stopped

when it is < than P.38.

P.39 -Threshold for genera!on of alarm A08 Panel temperature too high .

P.41 -Maximum voltage alarm threshold, referred to the rated voltage set with P.07, beyond which

the alarm A06 Voltage too high is generated.

P.42 -Undervoltage alarm threshold, referred to the rated voltage set with P.07, below which the

alarm A05 voltage too low is generated.

P.43 -Maximum installa!on voltage THD alarm threshold, beyond which the alarm A10 THDV too high

is generated.

P.44 – Maximum installa!on current THD alarm threshold beyond which the alarm A11 Current THD

too high is generated.

P.45 – Maintenance interval in hours. When it is elapsed, the alarm A12 Ordinary maintenance will

be generated. The hour count increments as long as the device is powered. (**) If the control-

ler is installed on the ITALFARAD cabinet

P.46 – Func!on of the semi-circular bar-graph.

Kvar ins/tot: The bar graph represents the amount of kvar actually inserted, with reference

to the total reac!ve power installed in the panel.

Curr act/nom: Percentage of actual plant current with reference to the maximum current of

the CT.

Delta kvar: bar graph with central zero. It represts the posi!ve/nega!ve delta-kvar needed to

reach the setpoint, compared to the total kvar installed.

P.47 – Default measure shown on the secondary display. Se"ng the parameter to ROT, the diﬀerent

measures will be shown with a sequen!al rota!on.

P.48 – If set to ON, the display backlight ﬂashes in presence of one or more ac!ve alarms.

P.49 – Serial (node) address of the communica!on protocol.

P.50 – Communica!on port transmission speed.

P.51 – Data format. 7 bit se"ngs can only be used for ASCII protocol.

P.52 – Stop bit number.

P.53 – Select communica!on protocol.

P.54 -Deﬁnes the number of the step (considering the step that has the highest count) beyond which

the maintenance alarm A12 is generated. This parameter should be used as an alterna!ve to

P.45. If both P.45 and P.54 are set to a value other than OFF, then P.45 has priority.

Alarms

· When an alarm is generated , the display will show an alarm icon, the code and the descrip!on of

the alarm in the language selected.

· If the naviga!on keys in the pages are pressed, the scrolling message showing the alarm indica!ons

will disappear momentarily, to reappear again a#er 30 seconds.

· Alarms are automa!cally rese&ed as soon as the alarm condi!ons that have generated them

disappear.

· In the case of one or more alarms, the behaviour of the PFC96evo regulator depends on the

proper•es se"ngs of the ac!ve alarms.

COD ALLARME DESCRIPTION

A01 Undercompensa•on In automa•c mode, all the available steps are connected but the

cosø is s•ll more induc•ve than the setpoint.

A02 Overcompensa•on In automa•c mode, all the steps are disconnected but the cosø is

s•ll more capaci•ve than the setpoint.

A03 Current too low

The current !owing in the current inputs is lower than minimum

measuring range.

This condi•on can occour normally if the plant has no load.

A04 Current too high The current !owing in the current inputs is lower than minimum

measuring range.

A05 Voltage too low The measured voltage is lower than the threshold set with P.42.

A06 Voltage too high The measured voltage is higher than the threshold set with P.41.

A07 Capacitor current overload

The calculated capacitor current overload is higher than threshold

set with P.32 and P.33. A"er the alarm condi•ons have

disappeared, the alarm message remains shown for the following

5 min or un•l the user presses a key on the front.

A08 Temperature too high The panel temperature is higher than threshold set with P.39.

A09 No-Voltage release A no-voltage release has occurred on the line voltage inputs,

las•ng more than 8ms.

A10 Voltage THD too high The THD of the plant voltage is higher than the threshold set with

P.43.

A11 Current THD too high The THD of the plant current is higher than the threshold set with

P.44.

A12 Ordinary maintenance

requested

The maintenance interval set with P.45 has elapsed. To reset the

alarm use the command C.01 (see Command menu).

For further information, the complete user manual is available in our web site.

Italfarad S.p.A. ViaIV Novembre n.1 40061 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: italfarad@italfarad.com Web:www.italfarad.com 19

Power Factor Controller PFC144evo

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 automa!c opera!ng mode.

key -Used to select manual opera!ng mode.

Display indica!ons

Output

status

Cooling fan

status

Secondary

display

Ac!ve

alarm

Automa!c

mode

Manual

mode

Main

Induc!ve /

capaci!ve

Bar

Alphanumeric

display

Step

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 or 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 speci$c 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 o%. To select a

step, use the or bu"ons. The selected step will &ash 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 &ash to

indicate that the transac!on has been accepted and will be conducted as soon as possible.

· Manual con$gura!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 con$gura!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 &ashing

of their iden!$ca!on number (le#). The &ashing 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 di%erent from the

setpoint.

Measures

· The PFC144evo 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 de$ned 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.

Voltage VRMS voltage of the plant current.

V HI Maximum voltage value measured.

Measure Icon Descrip!on

Delta-kvar Δkvar 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.

ΔSTEP Number of equal steps to achieve the target power factor.

Current ARMS 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

%❶Step residual power, as a percentage of the set rated power.

Step counter

OPC ❶Opera!on counter of the step.

Step hours

H❶Hour meter of the step inser!on.

❶These measures are shown only if the Step 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

keypad state.

Italfarad S.p.A. Via IV Novembre n.1 40061 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: italfarad@italfarad.com Web:www.italfarad.com20

Power Factor Controller PFC144evo

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)

· 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 (BASà ADVà ALA ... ) that is shown on the

alphanumeric display.

Indica!on

of TEST

mode

Total

number

of steps

Firmware

revision Model

variant

MAN

mode

icon

Connected

steps

Tot kvar

inserited in

MAN

Manual

step

selec!on

enabled

· The following table lists the available submenus:

Cod Descrip!on

BAS Access to Base menu

ADV Accesso to Advanced menu

ALA Accesso to Alarm menu

FUN Access to Ethernet menu

CMD Access to Command menu

CUS Access to Custom menu

SAVE Exits saving modiﬁca!ons.

EXIT Exits without saving (cancel)

· Press to access the submenu.

· When you are in a submenu, the main display shows the code of the selected parameter (eg

P.01 ), while the numeric/alphanumeric displays at the bo%om of the screen shows the

parameter value and / or descrip!on.

· Press to advance in the selec!on of items (such as scroll through parameters P.01 à P02

à P03… ), or press to go back to the previous parameter.

· While a parameter is selected, with you can increase/decrease its value.

Backward Decrement/increment Forward

· Once you reach the last parameter of the menu, by pressing once more will return you

to the submenu selec!on.

· Using select SAVE to save the changes or EXIT to cancel.

· Alterna!vely, from within the programming, holding for three seconds will save the

changes and exit directly.

· If the user does not press any key for more than 2 minutes, the system leaves the setup automatically

and goes back to normal viewing without saving the changes done on parameters (like EXIT).

· N.B.: a backup copy of the setup data (se#ngs that can be modiﬁed using the keyboard) can be

saved in the eeprom memory of the PFC144evo regulator. This data can be restored when

necessary in the work memory. The data backup 'copy' and 'restore' commands can be found in

the Commands menu.

Parameter table

· Below are listed all the programming parameters in tabular form. For each parameter are

indicated the possible se#ng range and factory default, as well as a brief explana!on of the

func!on of the parameter. The descrip!on of the parameter shown on the display can in some

cases be diﬀerent from what is reported in the table because of the reduced number of charac-

ters available. The parameter code can be used however as a reference.

· Note: the parameters shown in the table with a shaded background are essen!al to the opera-

!on of the system, thus they represent the minimum programming required for opera!on.

COD DESCRIPTION ACC UoM DEF RANGE

P.01 CT primary Usr AOFF OFF / 1...10.000

P.02 CT secondary Usr A51 / 5

P.03 CT read phase Usr L1 L1 -L2– L3

P.04 CT wiring polarity Usr Aut Aut -Dir -Inv

P.05 Voltage read phase Usr L2-L3 L1-L2 L2-L3 L3-L1 L1-N L2-N L3-N

P.06 Smallest step power Usr Kvar 1.00 0.10 ... 10000

P.07 Rated installa!on

voltage Usr V400V 50 ... 50000

P.08 Nominal frequency Usr Hz Aut Aut -50Hz -60Hz -Var

P.09 Reconnec!on !me Adv sec 60 1 … 30000

P.10 Sensi!vity Usr sec 60 1 … 1000

P.11 Step 1 func!on Usr OFF OFF -1…32 -ON -NOA -NCA -FAN -MAN -

AUT -A01…A12

P.12 Step 2 func!on Usr OFF =

P.13 Step 3 func!on Usr OFF =

P.14 Step 4 func!on Usr OFF =

P.15 Step 5 func!on Usr OFF =

P.16 Step 6 func!on Usr OFF =

P.17 Step 7 func!on Usr OFF =

P.19 Cos-phi setpoint Usr 0.95

IND 0.50 Ind – 0.50 Cap

P.20 Alarm messages

language Usr ENG ENG -ITA -FRA -SPA -POR -DEU

Base menu

P.01 -The value of the primary current transformer. Example: with CT 800/5 set 800. If set to OFF, after the

power-up the device will prompt you to set the CT and allow direct access to this parameter.

P.02 -Value of the secondary of the current transformers. Example: with CT 800/5 set 5.

P.03 – It deﬁnes on which phase the device reads the current signal. The wiring of current inputs must

match the value set for this parameter. Supports all possible combinations of parameter P.05.

P.04 -Reading the connec!on polarity of the CT.

AUT = Polarity is automa!cally detected at power up. Can only be used when working with

only one CT and when the system has no generator device.

Dir = Automa!c detec!on disabled. Direct connec!on.

Inv = Automa!c detec!on disabled. Reverse wiring.

P.05 -Deﬁnes on which and on how many phases the device reads the voltage signal. The wiring of

voltage inputs must match the se#ng for this parameter. Supports all possible combina-

!ons of parameter P.03.

P.06 -Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the

capacitor bank provided at the rated voltage speciﬁed in P.07 (exemple: step 10kvar-460V

supplied 400V $ 10 x (400)2/(460)2$ set 7,5kvar).

P.07 -Installa!on rated voltage, which is delivered in speci"ed power P.06.

P.08 -Working frequency of the system:

Aut = automa!c selec!on between 50 and 60 Hz at power on.

50Hz = "xed to 50 Hz.

60Hz = "xed to 60 Hz.

Var = variable, measured con!nuously and adjusted.

P.09 -Minimum !me that must elapse between the disconnec!on of one step and the subsequent

reconnec!on both in MAN or AUT mode. During this !me the number of the step on the

main page is blinking.

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