Circutor computer max 6f User manual

computer max 6f / max 12f
M98231001-03-16A.doc
POWER FACTOR REGULATOR Computer max
6
f
/
max
12
f
 The Computer max 6f/ max 12f PF regulators measure cos in a supply system and control the connection and disconnection of capacitors
to obtain a target programmed value.
 This manual is an easy guide for the use and operation of the
Computer max 6f/max 12f. For more information, the complete
manual can be downloaded from the web site of Circutor:
www.circutor.es
Any manipulation or use of the equipment out of the conditions
specified by the manufacturer may put in risk the user safety. Before
any maintenance operation the equipment must be disconnected from power
supply. In case of miss operation or protection fault the equipment must be
disconnected from supply and remain out of service ensuring against any
accidental reconnection.
1.- Regulator Connection
For proper operation it’s necessary to install a current transformer, CT
(normally In / 5 A), which primary must be sized according to the
maximum expected load current in the installation.
The regulator supply (C-D terminals) must be taken between two
phases and the CT should be located in the third phase. See technical
characteristics for cable sizes and required protections.
Must use an switch or automatic switch for supply the regulator
The current transformer , CT,
must be located so that it
measures the whole load current
plus the correction capacitors
2.- Technical Characteristics
Supply and V measurement input
terminals (C-D)
480,400, 230 or 110 VAC +15% -10% ; 45-65 Hz , (see label)
Connect preferably to phases L2-L3
Supply cables size and protection Cross section 1,5mm2 ; 0,5 to 2A Fuses gl type
Current measurement circuit Current transformer (CT) , In /5 , Place preferably in phase L1
Minimum cabling cross section 2,5mm2
Current measurement margin 0,05 to 5 A (maximum overload +20%)
Accuracy of measurements Voltage and current :1%; cos : 2%  1 dígit
Max. Power consumptions 110V: 7,3 VA 230V: 7,5 VA 400V: 5 VA 480V: 7 VA
Display 1 line x 3 digits x 7segments + 20 icons
Output Contacts MOS static output. Max 24V, 0.15A
Alarm Output Last output automatically set as alarm output , if not in use
Compliant to the following
Standards
EN 61010, EN 61000-3-2, EN 61000-3-3, EN 50081-2, EN 50082-
1, EN 50082-2, EN 61000-4-2, EN 61000-4-4, EN 61000-4-8, EN
61000-4-5, EN 61000-4-11 , UL 94
Safety / Insulation Category III , Class II, According to EN 61010-1,
Environment limit conditions Temperature limits: -20ºC a +60ºC; Relative Humidity 95%
(without condensation). Max. Altitude: 2000m
Protection degree IP40 (panel mounted)
IP30 (regulator box) , According to EN-60529
Control system FCP (Minimum number of operations)
Total (Connection/Disconnection of all stages needed)
3.- Four Quadrants Operation
The Computer max 6f/max
12f regulators operate in 4 quadrants (suitable
for imported or exported active power). For exported power, a negative
symbol is displayed in the cos indication. Check phase connection and
setup if there is no exported energy and the indication is not correct (see 4.3,
SET-UP - phase)
Display / Teclado

Standard mode: Displays cos

cos Indication / setting

C/K setting. See paragraph 6

Program setting. See 4.2

Delay time setting for switching on/off operations

Nr of steps setting

Setting CT phase and polarity connection

-
Cursor keys (when in setting mode)
- Manual ON / OFF (push during more than 1s when in RUN mode)
- Push both to see the Nr of connected steps

SETUP KEY: Push during more than 1s to enter SETUP mode

Lagging current indication (Inductive load)
11 Leading current indication (Capacitive load)

computer max 6f / max 12f
M98231001-03-16A.doc
4.- Setup and measurements
To enter the SETUP mode, press the setup key (9), for more than 1s. If all the capacitors are disconnected, the access in immediate, otherwise a disconnection sequence
starts and then accesses to setup menu. In the SETUP mode, if no key is pressed for 3 minutes, the equipment exits such mode and returns to normal operation mode.
Key to access the SETUP mode:
- Long push to enter and exit SETUP mode. Also DELETE max values when
in the measuring mode
- Short push: to change from display mode to edit mode and vice versa.
If no key is pushed during more than 3 minutes, the regulator exits the SETUP
mode without changing the setup.
:
Symbol showing which parameter is being displayed or edited.
- In the display mode: Cursors to select an option. points to the option
- In edit mode: Change a parameter value
Display SETUP Parameters Edit SETUP parameters Description
MENU OPTIONS
Target cos  (def=1)
Reactive I of 1st step,
C/K adjustment
Range: 0.02 – 1.00
See paragraph 6
Program setti
ng
Depends on the kvar
relationship between
successive steps.
See paragraph 4.2
Delay for successive
steps (2 -99 cycles) .
Selection of Nr of
outputs , max 6 or 12
depending on type
CT connection . See
paragraph 4.3. The
display shows T1, T2,
T3, T4, T5 or T6.
Accept the option
giving cos between
0.7 Ind and 0.98 Cap
CT primary current
setting. See
paragraph 4.4
 4.1.- RUN & Measuring mode
In normal operation mode (RUN mode) the regulator display may show different
parameters (V, I, cos, etc.) The displayed parameter is pointed by the sign .
By default the regulator displays the cos, but pushing the keys the
following parameters can be explored: Current (I), Current harmonics (THD), Mains
Voltage (V), Maximum current (I MAX) y Maximum voltage (V MAX). If both keys
are pushed simultaneously the regulator displays the Nr of connected steps.
A long push of key in maximum values screen causes de deletion of recorded
max values, in other parameters visualization screens we will go to SETUP
screens.
 4.2.- Program selection
This setting depends on the kvar ratio between the different capacitor steps. For
instance if the bank is 10+20+20+20 kvar the program is 1:2:2:2, so the option 122
must be selected. The program P00 of simulation allows to see on screen the steps
that it would connect without managing to do it.
Display Program Display Program Display Program
P00 Simulation 111 1:1:1:1 T11 1:1:1:1 (Total)
122 1:2:2:2 T22 1:2:2:2 (Total)
124 1:2:4:4 T24 1:2:4:4 (Total)
248 1:2:4:8 T48 1:2:4:8 (Total)
112 1:1:2:2 T12 1:1:2:2 (Total)
 4.3.- Selecting the CT connection phase
Choose among the options in the table depending on CT connection and the
phases where V is measured. In normal installations (no exported energy) choose
the option for which the displayed cos is between 0.7 Ind and 0.98 Cap.
Display V-I phase shift at
cos=1
Measuring phases
for V
Phase where TC is
connected
T1 30º L3-L2 L3
T2 270º L3-L2 L1
T3 150º L3-L2 L2
T4 210º L3-L2 L3 (CT reversed)
T5 90º L3-L2 L1 (CT reversed)
T6 330º L3-L2 L2 (CT reversed)
 4.4.- Selecting the rated primary current of CT
If the LED is blinking indicates that we are in SETUP mode and
adjusting primary CT current. When in RUN mode or when Iprimary is displayed,
the LED indicates whether the displayed current has a scale factor x1 (LED OFF)
or x10 (LED ON)
5.- Error Codes
ERR CODE DISPLAY DESCRIPCIÓN ACTUACIÓN
000 Alll zeros Load current below measuring threshold or
CT not connected
Forces all the
outputs OFF
E.02 cos

and E.02
alternate blinking
Overcompensation. The regulador is asking to
disconnect Cs and they are all disconnected
NO ACTION
E.03 cos

and E.03
alternate blinking
Sub-compensation. The regulator is asking for more
Cs and they are all connected
NO ACTION
E.04 cos

and E.04
alternate blinking
Over current. The current is + 20%. Above primary
rated current
NO ACTION
E.05 cos

and E.05
alternate blinking
Overvoltage. Voltage is +15%. Above rated voltage NO ACTION
6.- C/K table depending on initial cos , desired cos and CT ratio
CT Ratio Lower step reactive power (kvar) at 400V
C/K calculation:
If It is the primary rated current of the CT and
Ic the rated current of the lower capacitor step,
the C/K must be set according to the
calculations shown below:
Example : CT current ratio = 500/5
Lower step power: 60 kvar at 400V
A7,86
40073,1
000.60
I ;100
5
500
KC


867,0
100
7,86
K
Ic
K/C 
It
K
5

V.3
Q
IC
C K
Ic
K
/
CT 2.5 5,00 7.5 10,0 12,5 15,0 20,0 25,0 30,0 37,5 40,0 50,0 60,0 75,0 80,0
150/5 0,12 0,24 0,36 0,48 0,60 0,72 0,96
200/5 0,09 0,18 0,27 0,36 0,45 0,54 0,72 0,90
250/5 0,07 0,14 0,22 0,29 0,36 0,43 0,58 0,72 0,87
300/5 0,06 0,12 0,18 0,24 0,30 0,36 0,48 0,60 0,72 0,90 0,96
400/5 0,05 0,09 0,14 0,18 0,23 0,24 0,36 0,48 0,58 0,67 0,72 0,87
500/5 0,07 0,11 0,14 0,18 0,22 0,29 0,36 0,45 0,54 0,54 0,72 0,87
600/5 0,06 0,09 0,12 0,15 0,18 0,24 0,30 0,36 0,45 0,48 0,60 0,72 0,90 0,96
800/5 0,07 0,09 0,11 0,14 0,18 0,23 0,27 0,33 0,36 0,45 0,54 0,68 0,72
1000/5 0,05 0,07 0,09 0,11 0,14 0,18 0,22 0,27 0,29 0,36 0,43 0,54 0,57
1500/5 0,05 0,06 0,07 0,10 0,12 0,14 0,18 0,19 0,24 0,29 0,36 0,38
2000/5 0,05 0,07 0,09 0,11 0,13 0,14 0,18 0,22 0,27 0,28
2500/5 0,06 0,07 0,09 0,10 0,12 0,14 0,17 0,22 0,23
3000/5 0,05 0,06 0,07 0,09 0,10 0,12 0,14 0,18 0,19
4000/5 0,05 0,06 0,07 0,09 0,11 0,14 0,14
For different voltages (V) of 400V, table result must be multiply for 400/V, or calculate C/K parameter using the expressions.
7.- Technical Service
For any inquiry about the regulator operation or in case of malfunction, see
detailed manual at www.circutor.es or contact with technical service.
CIRCUTOR S.A.
Vial Sant Jordi, s/n
08232 - Viladecavalls (Barcelona) SPAIN
TEL – ([phone] & fax – ([phone]
E-mail : s[email protected]