CIRCUTOR PLUS-TF User Manual

POWER FACTOR

REGULATOR

COMPUTER plus TF

(Three-phase Measurement -

Static Switching)

INSTRUCTION MANUAL

M98223301-03-09B

CONTENTS

1 COMPUTER PLUS TF POWER FACTOR REGULATORS .............................................................................. 7

2 TECHNICAL SPECIFICATIONS .......................................................................................................................... 9

2.1 DIMENSIONS AND FIXINGS ................................................................................................................................. 10

3 STANDARD CONNECTION DIAGRAMS ......................................................................................................... 11

3.1 CARDS AND FUNCTIONS ..................................................................................................................................... 13

3.2 ALLOCATION OF TERMINALS .............................................................................................................................. 13

3.2.1 Card C: Power supply and measurement .................................................................................................. 13

3.2.2 Card A: Communications, measurement of I in capacitors and measurement of I in leakages .............. 14

3.3 CONNECTION OF CURRENT TRANSFORMERS ....................................................................................................... 16

4 SETTINGS AND START-UP ................................................................................................................................ 18

4.1 VERIFICATIONS THAT MUST BE CARRIED OUT BEFORE POWERING THE UNIT: ..................................................... 18

4.2 ENERGISING THE REGULATOR. ........................................................................................................................... 20

4.3 REGULATOR SETTINGS. ...................................................................................................................................... 20

5 BASIC INSTRUCTIONS TO BROWSE THE MENUS ..................................................................................... 21

5.1 BROWSING THE MENUS: FUNCTIONS OF THE KEYS ............................................................................................. 21

5.2 MAIN MENU AND DEFAULT MENU ...................................................................................................................... 21

5.3 BASIC OPTIONS OF THE MAIN MENU .................................................................................................................. 22

5.4 EDITING NUMERICAL OR LITERAL FIELDS ........................................................................................................... 23

6 SUBMENU LAYOUT ............................................................................................................................................. 24

6.1 MEASURE MENU................................................................................................................................................. 24

6.2 DEVICE SETUP MENU .......................................................................................................................................... 25

6.3 ALARM SETUP MENU .......................................................................................................................................... 26

6.4 ALARM STATUS MENU ........................................................................................................................................ 27

6.5 HARMONICS MENU ............................................................................................................................................. 28

6.6 TEST MENU ........................................................................................................................................................ 29

7 DEVICE SETUP: SETUP MENU ......................................................................................................................... 29

7.1 PASSWORD ......................................................................................................................................................... 29

7.2 "PLUG & PLAY" SETTING ................................................................................................................................... 30

7.2.1 Plug&Play Step 1 ...................................................................................................................................... 30

7.2.2 Plug&Play Step 2 ...................................................................................................................................... 33

7.2.3 Plug & Play Step 3 .................................................................................................................................... 34

7.2.4 Interpretation of the settings made by Plug & Play .................................................................................. 35

7.2.5 Default Plug&Play Values ........................................................................................................................ 36

7.3 MANUAL SETUP .............................................................................................................................................. 36

7.3.1 General information about the Setup menu ............................................................................................... 37

7.3.2 Entering the setup menu ............................................................................................................................ 37

7.3.3 Adjusting Capacitor Power ....................................................................................................................... 38

7.3.4 Adjusting and configuring the nominal voltage of capacitors................................................................... 39

7.3.5 Adjusting the connections of current transformers (CT) ........................................................................... 39

7.3.6 Adjusting the transformer ratios ............................................................................................................... 40

7.3.7 Adjusting the cos  objective..................................................................................................................... 41

7.3.8 Adjusting the Tact and Trec times ............................................................................................................. 42

7.3.9 Adjusting the compensation mode ............................................................................................................. 42

7.3.10 Adjusting the Date and Time ..................................................................................................................... 43

7.3.11 Adjusting the Display ................................................................................................................................ 44

7.3.12 Adjusting Communication Settings ........................................................................................................... 45

7.3.13 Adjusting Clear / Update ........................................................................................................................... 45

8 DISPLAY OF VARIABLES: MEASUREMENT MENU ................................................................................... 46

8.1 OPENING THE MEASUREMENT MENU .................................................................................................................. 46

8.2 MEASURABLE PARAMETERS............................................................................................................................... 47

9 ALARM SETUP ...................................................................................................................................................... 51

9.1 OPENING THE ALARM CONFIGURATION MENU .................................................................................................... 51

9.2 ALARM SETUP OPTIONS ...................................................................................................................................... 52

9.3 CONFIGURING EACH ALARM .............................................................................................................................. 53

9.4 SPECIAL ALARM SCENARIOS .............................................................................................................................. 54

9.4.1 Alarm Ileak (A) I leak ................................................................................................................................ 54

9.4.2 IC Alarm out of the margin ....................................................................................................................... 54

9.4.3 Current Failure Alarm .............................................................................................................................. 54

9.4.4 Earth Leakage Transformer Fault Alarm (only in TF-CDI) ..................................................................... 55

9.5 PROGRAMMING THE ALARM RELAY ................................................................................................................... 55

10 VIEWING THE STATE OF THE ALARMS .................................................................................................. 55

10.1 OPENING THE ALARM DISPLAY MENU ................................................................................................................ 56

10.2 ALARM DISPLAY OPTIONS .................................................................................................................................. 56

10.2.1 Parameters displayed on the alarm status screens. .................................................................................. 57

10.2.2 I leak alarm ............................................................................................................................................... 59

10.2.3 IC out of the margin Alarm. ...................................................................................................................... 59

10.2.4 Current Fault Alarm.................................................................................................................................. 59

11 HARMONICS DISPLAY ................................................................................................................................... 60

11.1 OPENING THE HARMONICS DISPLAY MENU ......................................................................................................... 60

11.2 HARMONICS DISPLAY OPTIONS .......................................................................................................................... 60

12 TEST .................................................................................................................................................................... 62

12.1 OPENING THE TEST MENU .................................................................................................................................. 63

12.2 TEST COS  AND RESONANCE TEST .................................................................................................................... 63

12.3 CAPACITORS TEST ............................................................................................................................................. 64

13 CONNECTION OF COMPUTER PLUS WITH CPC3I CARDS .................................................................. 65

13.1 MODBUS CONTROL FRAME ............................................................................................................................. 66

14 INTEGRATION OF COMPUTER PLUS IN THE SCADA POWER STUDIO PROGRAM .................... 68

15 SAFETY INFORMATION ...................................................................................................................... 68

16 MAINTENANCE ................................................................................................................................................ 68

17 TECHNICAL SERVICE .................................................................................................................................... 69

INTRODUCTION

CAUTION!

The installation and maintenance of the unit must be performed by duly trained and authorised staff, in accordance with the national and international standards.

DANGER!

Before performing any maintenance operation on the cos φ regulation units, be sure to disconnect the main switch. After disconnecting it, wait at least 5 minutes to ensure that the capacitors are totally discharged.

CIRCUTOR S.A. would like to thank you for showing your trust by choosing one of our Computer plus series regulators

These units are constructed with state-of-the-art technology, including a powerful DSP to calculate the optimum algorithms for achieving the best compensation of cos φ.

The units comply with the Electrical Safety Standard EN 61010, in accordance with the requirements of the Low Voltage Directive (LVD) 73/23/EC and EMC Directive (2004/108/EC) and, therefore, they are certified to carry the CE mark.

This user manual describes the operation of the Computer plus TF series regulators and shows the user the procedures required to install, commission and operate the units.

SAFETY

During the installation, maintenance or commissioning of the units regulated by a Computer plus unit, the following safety precautions must be observed:

 Before connecting the units make sure the earth terminals have been connected correctly. A

defective earthing connection may cause the unit to work incorrectly and represent a danger of electric shock to the user the person operating it.

 Maintenance must be performed taking the necessary precautions to avoid electrocution and electric

shock. Before any intervention, we recommend you ensure the unit has been disconnected and wait during the time necessary for the capacitors to be totally discharged. We recommend the use of safety goggles and gloves when necessary.

 If the PF compensation units are connected without load, resonance may occur, so that the voltage

harmonics may be amplified and may damage the compensation unit and other equipment connected to the network.

 The start-up and interruption procedures indicated in the manual must be followed to avoid

damaging the unit and/or adjacent units.

 The adjustment or replacement of components or parts of the unit must be made with original

replacement parts and in accordance with the procedures described in the corresponding instruction manual.

C.T.’s

THREE-PHASE MEASUREMENT

3 phases STAR CONNECTION or

3 phases DELTA CONNECTION

LEAKAGE MEASURE

LOADS

COMPUTER+

V1 230 I1 150 kW1 80 kvar1 60 V2 230 I2 150 kW2 80 kvar3 60 V3 230 I3 150 kW2 80 kvar3 60

Cos = 0.8

TEMPERATURE

ALARM

CAPACITOR

BANK

RS485

1 COMPUTER PLUS TF POWER FACTOR REGULATORS

The regulators in the Computer plus series are power factor regulators that incorporate the latest advances in technology regarding power factor compensation and harmonic filtering, both in systems with contacts and in fast systems. The core of the controller is a state-of-the-art DSP processor that allows the quick and efficient execution of advanced control algorithms.

The Computer plus TF regulators described in this manual are static switching regulators to be used with contactor-driven capacitor banks. For information about the Computer plus T8 and T14 types for contactors, see manual M98223001-01-AAx. (AAx: AA are the last two digits of the year of revision and x is an alphabetical character, A…Z, used to indicate the version).

Fig. 1 .- Schematic diagram of connections

TYPE

VOLTAGE

(Vac)

OUTPUT

MEASURE

MENT

OTHER FUNCTIONS

Computer plusTF-C

110-480

16 static

outputs

Threephase

Basic type for static capacitor banks (Includes Communications)

Computer plusTF-CDI

110-480

16 static

outputs

Threephase

Basic type of static capacitor banks + Leakage measurement + Measurement of I capacitors

Types and basic functions:

Auxiliary power supply:

110 to 480 Vac (50…60 Hz) (± 10%) Consumption of the unit:  6.6 VA / 230 V ÷ 19 VA / 400 V ÷ 24.9 VA / 480 V

Voltage circuit:

Measurement margin

5% to 120 % for Un = 300 Vac (phase-neutral) 5% to 120 % for Un = 520 Vac (phase-phase)

Maximum consumption

< 0.6 VA

Frequency

45 ... 65 Hz

Intensity circuit:

Nominal current

Transformers In / 5 Aac or In / 1 Aac

Admissible overload

6 A permanent, 100 A t< 1 s

Consumption (…/5 A and …/ 1

< 0.45 VA

Integrated control system

FCP or Linear / 4 quadrants

Integrated control algorithms

Three-phase and Phase-Phase (Star or Delta)

Communications of Computer plus with CPC3i (Nonconfigurable):

Bauds

38400 bps

Parity

No. Bits \ Stop

8 / 1

Frame

See Section 13

Environment:

Operating temperature

-10º to +50 ºC

Storage temperature

-20º to +65 ºC

Maximum relative humidity

95 % non-condensing

Maximum operating altitude

2000 m (over sea level)

Installation category

Installation category III, in accordance with IEC 61010

Contamination level

2, in accordance with IEC 61010

Protection degree

IP 51 front panel - IP 20 rear panel

Safety:

Installation category

Installation category III, in accordance with IEC 61010

Protection to electric shock

Double insulation class II

Designed and identified with the CE mark

2 TECHNICAL SPECIFICATIONS

Construction features:

Connection

Direct connection terminals for rigid 2.5 mm wire (4,5 mm2) or flexible (AWG 11)

Box material

V0 self-extinguishing plastic

Dimensions

In accordance with Fig. 2

Weight

0.511 kg

Regulations:

EMC

IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-11

2.1 Dimensions and fixings

Fig. 2 .- External dimensions

The unit is intended to be installed in the panel door (138+1 x 138+1 mm in accordance with DIN 43 700).

AC SUPPLY

CO M

AL1

1G1

1K1

1G2

1K2

2G1

2K1

2G2

2K2

3G1

3K1

3G2

3K2

Power Block

CPC3i-xRS

230V

400V

2G2

2K2

2G1

2K1

3G2

3K2

3G1

3K1

1K2 1G2

1G1

1K1

AL1

COM

SH RS+ RS-

A B C D E

ADJ

CO M

AL1

1G1

1K1

1G2

1K2

2G1

2K1

2G2

2K2

3G1

3K1

3G2

3K2

CPC3i-xRS

230V

400V

2G2

2K2

2G1

2K1

3G2

3K2

3G1

3K1

1K2 1G2

1G1

1K1

AL1

COM

SH RS+ RS-

A B C D E

ADJ

CO M

AL1

1G1

1K1

1G2

1K2

2G1

2K1

2G2

2K2

3G1

3K1

3G2

3K2

CPC3i-xRS

230V

400V

2G2

2K2

2G1

2K1

3G2

3K2

3G1

3K1

1K2 1G2

1G1

1K1

AL1

COM

SH RS+ RS-

A B C D E

ADJ

F1 F2 F4F3

313233

A+

B-

A+

B-

A+

B-

A+

2S2

1S1

1S2

2S1

3S2

3S1

7 8 9 10 11 12

To external current transformers

Power Block

3 STANDARD CONNECTION DIAGRAMS

Fig. 3 .- Connection of Computer plus with various CPC3i-RS cards

L1 L2

AC SUPPLY

AL1

1G1

1K1

1G2

1K2

2G1

2K1

2G2

2K2

3G1

3K1

3G2

3K2

Power Block

CPC3i-xRS

230V

400V

2G2

2K2

2G1

2K1

3G2

3K2

3G1

3K1

1K2 1G2

1G1

1K1

AL1

COM

SH RS+ RS-

A B C D E

ADJ

F1 F2 F4F3

313233

B-

A+

2S2

1S1

1S2

2S1

3S2

3S1

7 8

9 10 11 12

To external current transformers

345

OPTIONAL

A+

B-

IMPORTANT: Computer plus TF-C and TF-CDI always use static capacitor banks with the CPC3i-xRS card and both are connected through an RS-485 channel. The peripheral number must be configured on each CPC3i-xRS card (see Section 13).

Fig. 4 .- Details of the connection of a step to CPC3i-RS

Card A: Com + Measure C + Leakages

Card B: Relays

Card C: P.S. + measure + Alarm relay

Computer plus TF includes two printed circuit boards or cards.

Card A: Communications. Capacitor Current Measurement and Leakage Measurement

Card C: Power supply and measurement of line voltages and currents

CARD C TERMINALS

FUNCTION

Power supply

Voltage 1

Voltage 2

3.1 Cards and Functions

3.2 Allocation of terminals

3.2.1 Card C: Power supply and measurement

Fig. 5.- Power supply and measurement terminals

Voltage 3

Neutral

Secondary 1 Current IA

Secondary 2 Current IA

Secondary 1 Current IB

Secondary 2 Current IB

Secondary 1 Current IC

Secondary 2 Current IC

Alarm Relay NC Contact

Alarm Relay Common

Alarm Relay NO Contact

3.2.2 Card A: Communications, measurement of I in capacitors and measurement of I in leakages

Fig. 6.- Card A Terminals for Computer plus TF-C

Fig. 7.- Card A Terminals for Computer plus TF-CDI

CARD A TERMINALS

ALLOCATION

FUNCTION

A+

Terminal A+ RS-485 (control of capacitors Only TF versions)

B-

Terminal B- RS-485 (control of capacitors Only TF versions)

33 S Terminal S- RS-485 (control of capacitors Only TF versions)

A+

Terminal A+ Communications RS-485

B-

Terminal B+ Communications RS-485

Terminal S Communications RS-485

COM (1)

Common Digital Inputs

D1 (1)

Digital Input 1

D2 (1)

Digital Input 2

D3 (1)

Digital Input 3

D4 (1)

Digital Input 4

D5 (1)

Digital Input 5

IF - S1 (1)

Earth leakage transformer, I leakages Secondary 1

IF - S2 (1)

Earth leakage transformer, I leakages Secondary 2

IC1 - S1 (1)

Metering transformer, I capacitors, phase 1. Secondary 1

IC1 - S2 (1)

Metering transformer, I capacitors, phase 1. Secondary 2

IC2 - S1 (1)

Metering transformer, I capacitors, phase 2. Secondary 1

IC2 - S2 (1)

Metering transformer, I capacitors, phase 2. Secondary 2

IC2 - S1 (1)

Metering transformer, I capacitors, phase 3. Secondary 1

IC1 - S2 (1)

Metering transformer, I capacitors, phase 3. Secondary 2

(*) The grey boxes are only available in Computer plus TF-CDI

3.3 Connection of current transformers

The unit measures the current of the three input phases with three current transformers. The PF equipment requires current transformers, which must be installed at the mains supply line, so that the total current of the installation can flow through them (load current + current of the capacitors).

Fig. 8 .- Connection of the line current transformers

4 SETTINGS AND START-UP

Read the safety instructions in the introduction of this manual. You must respect these conditions to guarantee the safe operation of the unit and keep it in good condition regarding safety. The unit must not be used and programmed until it has been installed in its final position in the electrical panel with the adequate protection elements.

If you use the unit in a way that is not specified by the manufacturer, the protection of the unit may be compromised.

If the unit has been damaged, burnt or hit by any element, the internal circuits might have been damaged and the safety protection elements might not been in full working order. In this case, disconnect the power supply and contact the authorised Technical Service to request a replacement.

4.1 Verifications that must be carried out before powering the unit:

Before powering the unit, check the following points: a.- Auxiliary power supply:

- Voltage: 110 - 480 Vac (± 10%)

- Frequency: 50 ... 60 Hz

b.- Nominal voltage in the voltage measurement circuit:

- Maximum nominal voltage: U

: 300 Vac / U

p-N

: 520 Vac

p-p

- Frequency: 45 ... 65 Hz

c.- Nominal current in the current measurement circuit:

- Secondary … / 5 A: 5 Aac

- Secondary … / 1 A: 1 Aac

d.- Operating conditions:

- Operating temperature: -10º to +50 ºC

- Relative humidity: < 95 % non-condensing

e.- Safety:

- Designed for CAT III 300/520 Vac installations, in accordance with EN61010.

- Double-insulated electric shock protection class II.

The unit is intended to be installed in the panel door (drill panel, in accordance with DIN 43 700):

- Drill panel 138+1 x 138+1 mm

All connections are inside electric panel. Remember that with the unit connected, the terminals may be hazardous to the touch, and

opening the covers or removing elements may provide access to parts that are dangerous to the touch. The unit must not be used until it is fully installed.

The regulator should be connected to a power supply circuit protected by gl type (IEC 269) or M type fuses (IEC 127), rated between 0.5 and 2 A. It should be provided with a MCB or equivalent device to switch off the system from the power supply circuit. Both power supply and voltage measuring circuits as well as connections to different relays will be wired with cables of a minimum cross-section of 1 mm2 (AWG 17). The current transformer secondary side connection line should have a minimum cross section of 2 mm2 (AWG 14) and with a minimum temperature rating of 60 ºC.

------------------------------------------------------------------------------------------------------------------------------

To connect a Computer plus regulator to a power factor compensation unit, follow these steps:

 Connect the power supply terminals (1 and 2 in Card C) to the control panel's voltage source.  Connect terminals VL1, VL2, VL3 and the neutral N (if available) to the network's phases and neutral.  VERY IMPORTANT!

The device considers that phase 1 is the phase connected to the VL1; phase 2 will be that connected to VL2 and phase 3 that connected to the regulator's VL3. (Cables L1, L2 and L3 of the power supply connection).

 Connect current transformers T1, T2 and T3 to phases 1, 2 and 3, respectively. If you do not connect

each transformer to the corresponding phase, the “Plug and Play” setting can be used to detect them

automatically. In addition, they can be configured manually with the Connection of Transformers V-I option in the Setup menu folder.

 Make sure that the cables (S1-S2) coming from the secondary connections of the current transformers

are connected to terminals S1-S2 of the Computer plus unit. If you do not connect each transformer to the corresponding phase, the “Plug and Play” setting can be used to detect them automatically. In addition, they can be configured manually with the Connection of Transformers V-I option in the Setup menu folder.

4.2 Energising the regulator.

 The device can be energised once the power supply and measuring cables have been connected.  After energising the Computer plus unit and waiting for a start-up time of 10 seconds, the device will

start to display the values measured. Some information might not be coherent (cos  out of reasonable margins, active power values with a negative sign, etc.). This is usually the result of incorrect connections (current transformers connected to the incorrect phase or inverting S1-S2).

Any of these errors can be solved without changing the cables; simply enter the setup menu of the device, select option Connection of Transformers V-I (see section 7.3), or execute the “Plug and Play” option (see section 7.2).

NOTE: If you connect the unit and it does not operate, remember that it must be put in the RUN mode (section 7.3.9). In particular, this is essential when working with static capacitor banks, given their fast operation, in order to avoid the connection of all capacitors when they are powered, causing an accident due to an overcompensation.

4.3 Regulator settings.

ATTENTION: The Computer plus TF-C and TF-CDI regulator is delivered with the outputs disabled as the default

factory settings. Therefore, when you connect the voltage and before adjusting the setup, do not connect any capacitor step. If any capacitor is connected, set the Computer plus in the STOP status (See Section 7.3.9) and adjust it in accordance with the instructions in Section 7.

When the regulator is installed on a CIRCUTOR capacitor bank, it has already been set-up and its final location will only need you to select the “Plug & Play” option (see section 7.2).

If you are sure that the regulator has not been set-up and a capacitor connects, this indicates that something is working incorrectly. In this case, check the settings in accordance with the instructions in section 7.

Follow these steps to adjust the unit:

 Apply voltage to the unit and follow the set-up instructions in section 7.  Configure the alarms according to your needs by following the instructions in section 8.  If you have a communications network and you wish to integrate the PF compensation unit into the

SCADA Power Studio, follow the instructions in section 11.

Fig. 9.- Start screen

Fig. 10.- Information screen

5 BASIC INSTRUCTIONS TO BROWSE THE MENUS

5.1 Browsing the menus: Functions of the keys

The Computer plus system has four dynamic keys, marked F1 F2 F3 and F4. Dynamic means that the functions of these keys is not always the same, because it changes on each screen. The function of each key is shown on the lower line of the corresponding screen. For example, on the screens on Fig. 10 and 11, the functions of the keys correspond to the indications on the boxes on the lower part of the screen.

In general, you can return to the main menu from any screen, by pressing the F1 key until the screen shown on Fig. 12 is displayed.

5.2 Main menu and default menu

Normally, when you power the device it performs an initial test and during this time it shows the start screen (Fig. 9). After 5 seconds, it will show an information screen (Fig. 10) with the model, software version, language, date and time and serial number.

After 5 seconds showing the information screen, the unit will display the default screen by default in the

STOP mode (Fig. 11). If the unit is in the RUN MODE, the Fig.12 displayed on screen will be displayed,

indicating the kvar connected in each phase.

ATTENTION: If the unit has not been set-up, and the screen shown on Fig. 12, is displayed set the unit in the STOP mode (press the Stop) key and return to the screen shown on Fig.10. Next, check the settings, following some of the procedures described in Section 7.

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