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
21
Power Factor Controller
PFC144evo
P.10
-
Connection sensitivity. This parameter sets the speed of reaction of the controller. With small values
of P.10 the regulation is fast (more accurate around the setpoint but with more step swithchings).
With high values instead we’ll have slower reactions of the regulation, with fewer switchings of the
steps. The delay time of the reaction is inversely proportional to the request of steps to reach the
setpoint: waiting time = (sensitivity / 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
ON
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 cle
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
V
OFF
OFF / 50
-
50000
P.35
VT secondary
Usr
V
100
50
-
500
P.36
Temperature UoM
Usr
°C
°C °Celsius ; °F °Fahrenheit
P.37
Fan start temperature
Adv
°
25
0 .. 212
P.38
Fan stop temperature
Adv
°
20
0 .. 212
P.39
Temperature alarm threshold
Adv
°
55
0 .. 212
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
%
6
OFF / 1..250
P.44
THD I alarm threshold
Adv
%
12
OFF / 1..250
P.45
Maintenance interval
Adv
h
9000
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
V
A
Week TPF
Cap. Current
Temp
THDV
THDI
ROT
P.48
Backlight flashing on alarm
Usr
OFF
OFF / ON
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
1
1
-
2
P.53
Protocol
Usr
Modbus RTU
Modbus RTU / Modbus
ASCII
P.54
Number of insertions for maintenance
Adv
kcnt
OFF
OFF / 1...60
P.55
Step 9 func!on
Usr
OFF
=
P.56
Step 10 func!on
Usr
OFF
=
P.57
Step 11 func!on
Usr
OFF
=
P.58
Step 12 func!on
Usr
OFF
=
P.59
Step 13 func!on
Usr
OFF
=
P.60
Step 14 func!on
Usr
OFF
=
P.21
– If set to OFF, password management is disabled and anyone has access to the settings and commands menu.
P.22
– With P.21 enabled, this is the value to specify for activating 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 time 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) after each switching and is displayed on the
step life statistic page. When this function is enabled, a 15 sec pause is inserted between the
switching of one step and the following, necessary to measure the reactive power variation.
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
-
Disconnection sensitivity. Same as the previous parameter but related to disconnection. If set to OFF
the disconnection has the same reaction time of connection 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
A05 voltage too
low
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
controller 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.
P.55...P.60
-
Func!on of output relays 9...14. See descrip!on of parameter.
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
PFC144evo
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 flowing 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 flowing 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
Maintenance
requested
The maintenance interval set with P.45 or P.54 has elapsed. To reset
the alarm see Command menu.
For further information, the complete user manual is available in our web site.
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