Lifasa MASTER control Var Instruction Manual

INSTRUCTION MANUAL

(M021B02-03-18A)

REACTIVE ENERGY REGULATOR

Controller MASTER control VAR FAST

(Static operation)

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Controller MASTER control VAR FAST

Instruction Manual

SAFETY PRECAUTIONS

DISCLAIMER

LIFASA, reserves the right to make modi cations to the device or the unit speci cations set

out in this instruction manual without prior notice.

LIFASA, on its web site, supplies its customers with the latest versions of the device speci cations and the most updated manuals.

www.lifasa.es

LIFASA, recommends using the original cables and accessories that are supplied with the device.

DANGER

Warns of a risk, which could result in personal injury or material damage.

ATTENTION

Indicates that special attention should be paid to a speci c point.

Follow the warnings described in this manual with the symbols shown below.

If you must handle the unit for its installation, start-up or maintenance, the following should be taken into consideration:

Incorrect handling or installation of the unit may result in injury to personnel as well as damage to the unit. In particular, handling with voltages applied may result in electric shock, which may cause death or serious injury to personnel. Defective installation or maintenance may also lead to the risk of  re. Read the manual carefully prior to connecting the unit. Follow all installation and maintenance instructions throughout the unit’s working life. Pay special attention to the installation standards of the National Electrical Code.

Refer to the instruction manual before using the unit

In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can result in injury or damage to the unit and /or installations.

LIFASA, reserves the right to modify features or the product manual without prior noti cation.

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CONTENTS

SAFETY PRECAUTIONS ��3 DISCLAIMER �� 3 CONTENTS �� 4 REVISION LOG ��6 1�- VERIFICATION UPON RECEPTION �� 7 2�- PRODUCT DESCRIPTION �� 8 3�- UNIT INSTALLATION ��9

3�1�- PRELIMINARY RECOMMENDATIONS �� 9 3�2�- INSTALLATION ��10 3�4�- UNIT TERMINALS �� 12 3�5�- CONNECTION DIAGRAM �� 14

3�5�1�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL� �� 14 3�5�2�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL� �� 15 3�5�3�- 3 VOLTAGES + NEUTRAL AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL� �� 16 3�5�4�- 3 VOLTAGES + NEUTRAL AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL� �� 17 3�5�5�- 2 VOLTAGES AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL� �� 18 3�5�6�- 2 VOLTAGES AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL� �� 19 3�5�7�- LEAKAGE CURRENT CONNECTION, IΔ ��20

3�6�- STARTING UP THE UNIT �� 21

4�- OPERATION �� 22

4�1�- DEFINITIONS ��23

4�1�1 FOUR-QUADRANT REGULATOR� �� 23 4�1�2 STAGES AND STEPS ��23 4�1�3 FCP SYSTEM (FAST Computerized Program)� �� 23 4�1�4 REGULATION PROGRAM� �� 23 4�1�5� PLUG AND PLAY� �� 24 4�1�6 CONNECTION TIME (Ton) AND RECONNECTION TIME (Trec)� ��24 4�1�7 THD AND HARMONICS ��24

4�2�- MEASUREMENT PARAMETERS �� 25

4�2�1� CONNECTION TYPE: 3U.3C �� 25 4�2�2� CONNECTION TYPE: 3U.1C �� 26

4�2�3� CONNECTION TYPE: 2U.1C �� 27

4�3�- KEY FUNCTIONS �� 28 4�4�- DISPLAY �� 30

4�4�1� STATUS OF THE CAPACITORS �� 31 4�4�2� STATUS OF THE UNIT ��31 4�4�3� ANALOGUE BAR �� 32

4�4�4� OTHER SYMBOLS ON THE DISPLAY �� 32 4�5�- LED INDICATORS �� 33 4�6�- OPERATING STATES ��34

4�6�1� MEASUREMENT STATUS ��34

4�6�2� TEST STATUS ��54 4�7�- INPUTS �� 57 4�8�- OUTPUTS �� 57 4�9�- RS-485 COMMUNICATIONS�� 58

4�9�1� CONNECTIONS �� 58

4�9�2� PROTOCOL ��59

4�9�3� MODBUS MEMORY MAP �� 60

4�9�4� EXAMPLE OF A MODBUS QUERY �� 68 4�10�- CPC-NET COMMUNICATIONS �� 69

4�10�1� MODBUS CONTROL FRAME �� 70

5�- CONFIGURATION �� 71

5�1�- PLUG&PLAY ��72 5�2�- CURRENT TRANSFORMATION RATIO ��75

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5�3�- TARGET COS φ ��76 5�4�- CONNECTION AND RECONNECTION TIME �� 77 5�5�- CONNECTION TYPE �� 78 5�6�- PHASE CONNECTION �� 78 5�7�- NO� OF STAGES �� 80 5�8�- PROGRAM ��81 5�9�- C/K FACTOR �� 82 5�10�- ADVANCED SETUP ��84 5�11�- VOLTAGE TRANSFORMATION RATIO ��85 5�12�- STATUS OF THE STAGES �� 86 5�13�- DISPLAY �� 87 5�14�- ANALOGUE BAR �� 88 5�15�- FAN ��89 5�16�- RS-485 COMMUNICATIONS�� 90 5�17�- CPC-NET COMMUNICATIONS �� 91 5�18�- CLEAR �� 92 5�19�- ENABLING ALARMS �� 93 5�20�- VOLTAGE ALARMS �� 94

5�21�- COS φ ALARM �� 95 5�22�- VOLTAGE THD ALARM �� 96 5�23�- CURRENT x I THD ALARM ��97 5�24�- TEMPERATURE ALARM ��98 5�25�- LEAKAGE CURRENT ALARM ��100 5�26�- NO� OF OPERATIONS ALARM ��101

5�27�- SIMULATION SCREEN �� 102 6�- TECHNICAL FEATURES �� 103 7�- MAINTENANCE AND TECHNICAL SERVICE �� 106 8�- WARRANTY �� 106

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REVISION LOG

Table 1: Revision log�

Date Revision Description

07/18 M021B02-03-18A Initial Version

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1�- VERIFICATION UPON RECEPTION

Check the following points when you receive the unit:

a) The unit meets the specications described in your order. b) The unit has not suffered any damage during transport.

c) Check the features shown on the label of the unit to make sure that they are suitable for the type of grid to which the unit will be connected. (Voltage and power supply fre-

quency, measurement range, etc.) d) Perform an external visual inspection of the unit prior to switching it on. e) Check that it has been delivered with the following:

- An installation guide,

- Four retainers for rear attachment of the unit,

If any problems are detected upon reception, immediately contact the transport company and/or the LIFASA after-sales service.

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2�- PRODUCT DESCRIPTION

The Controller MASTER control VAR FAST reactive energy regulator is a unit that measures the grid cosine and regulates capacitor connection and disconnection in order to correct it. It also calculates and displays the main electrical parameters of balanced or unbalanced single-phase and three-phase networks. The measurement is taken in RMS, via four AC voltage inputs and three current inputs.

There are 2 versions of the unit, according to the number of output relays:

 Controller MASTER control VAR FAST 6, with six optoMOS relay outputs.  Controller MASTER control VAR FAST 12, with twelve optoMOS relay outputs.

The unit features:

- 5 keys that can be used to browse the various screens and program the unit.

- 4 indicator LEDs: CPU, ALARM, FAN and KEY PRESSED.

- LCD display, amber backlit, 70x60.7 mm display for viewing all the parameters.

- 2 digital inputs, for selecting the target cosine (4 target cosines).

- 2 digital outputs and 1 relay output, fully programmable as alarms.

- 1 relay output, specic for the fan.

- 6 optoMOS relay outputs (Controller MASTER control VAR FAST 6 model) or 12 optoMOS relay outputs (Controller MASTER control VAR FAST 12 model) for regu-

lating the cos φ by means of capacitors.

- RS-485 communications, MODBUS RTU©.

- CPC-NET communications port.

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3�- UNIT INSTALLATION

3.1.- PRELIMINARY RECOMMENDATIONS

In order to use the unit safely, it is critical that individuals who handle it follow the safety measures set out in the standards of the country where it is being used, use the personal protective equipment necessary, and pay attention to the various warnings indicated in this instruction manual.

The Controller MASTER control VAR FAST unit must be installed by authorised and quali- ed staff.

The power supply plug must be disconnected and measuring systems switched off before handling, altering the connections or replacing the unit. It is dangerous to handle the unit while it is powered.

Also, it is critical to keep the cables in perfect condition in order to avoid accidents, personal injury and damage to installations.

The manufacturer of the unit is not responsible for any damage resulting from failure by the user or installer to heed the warnings and/or recommendations that appear in this manual, nor for damage resulting from the use of products or accessories that did not come with the unit or that were made by other manufacturers.

If an anomaly or malfunction is detected in the unit, do not use the unit to take any measurements.

Inspect the work area before taking any measurements. Do not take measurements in dangerous areas or where there is a risk of explosion.

Disconnect the unit from the power supply (unit and measuring system power supply) before maintaining, repairing or handling the unit's connections. Please contact the after-sales service if you suspect that there is an operational fault in the unit.

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3.2.- INSTALLATION

The Controller MASTER control VAR FAST regulator is connected to units that contain capacitors, which remain charged after the voltage source is disconnected. Wait at least 5 minutes after the unit is disconnected before handling its internal components in order to avoid the risk of electric shock.

Any manipulation or use of the unit other than that specied by the manufacturer may compromise user safety�

Make sure that the units are correctly earthed before they are connected. A faulty earth connection could lead to faulty operation and lead to a risk of electrical shock for the user or person handling the unit.

Resonance can occur when the unit is connected with no load. In this case, the voltage harmonics can be amplied, causing damage to the compensation unit and other units connected to the mains.

The safe use of the Controller MASTER control VAR FAST requires the persons installing or handling it to follow the general safety measures of LV electrical installations, as well as the warnings indicated in this instruction manual.

The unit will be installed on a panel (138+1 x 138+1 mm panel drill hole, in compliance with DIN

43700). All connections are inside the electric panel.

Terminals, opening roofs or removing elements can expose parts that are hazardous to the touch while the unit is powered. Do not use the unit until it is fully installed.

The unit must be connected to a power circuit that is protected with gl (IEC 269) or M type fuses with a rating of 0.5 to 2 A. It must be tted with a circuit breaker or equivalent device for disconnecting the unit from the power supply mains. The power and voltage measurement circuits as well as the relay contact circuits must be connected with cables that have a minimum cross-section of 1.5 mm2.

One or three external current transformers (CT) need to be installed in order to measure current. Usually, the transformation ratio of these CTs is In/5 A, where In is at least 1.5 times the total maximum load current.

The secondary cables of the current transformers (CT) must have a minimum cross-section of 2.5 mm2. For distances between the CTs and the unit of more than 25 m, this cross-section should be increased by 1 mm2 for every 10 m.

The current transformers (CT) must be installed at a point in the distribution panel which carries all the current of the loads to be compensated as well as the current of the capacitors themselves ( Figure 1).

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CORRECT INCORRECT

~

P1

P2

S1

S2

TC

LOAD

CAPACITORS

The current transformers (CT) must measure the combined current of the capacitors plus the loads

If it does not work, make sure that the CTs are not shortcircuited�

~

LOAD

CAPACITORS

P1

P2

S1

S2

TC

If the CTs are connected in this position, NONE OF THE CAPACITORS WILL BE CONNECTED, even if there are inductive loads.

The unit does not compensate�

~

LOAD

CAPACITORS

P1

P2

S1

S2

TC

If the CTs are connected in this position ALL THE CAPACITORS WILL BE CONNECTED, but they will not be disconnected if the load drops.

Risk of over-compensation in the grid with no load�

Figure 1: Location of the current transformers

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3.4.- UNIT TERMINALS

Table 2:List of Controller MASTER control VAR FAST terminals�

Terminals of the top side of the unit

1: A1, Auxiliary power supply. 23: 8, Output 8

(1)

2: A2, Auxiliary power supply. 24: 9, Output 9

(1)

3: VL1, L1 voltage input 25: 10, Output 10

(1)

4: VL2, L2 voltage input 26: 11, Output 11

(1)

5: VL3,L3 voltage input 27: 12, Output 12

(1)

6: V

LN,

Neutral voltage input

28: A(+), RS-485

7: S1, L1 current input

29: B(-), RS-485

8: S2, L1 current input

30: S, GND for RS-485

9: S1, L2 current input

31: 1, Digital input 1

10: S2, L2 current input

32: 2, Digital input 2

11: S1, L3 current input

33: C, Digital inputs common

12: S2, L3 current input

34: 1, Digital output 1

13: S1, Leakage current input

35: 2, Digital output 2

14: S2, Leakage current input

36: C, Digital outputs common

15: COM, Outputs common

37: Fan relay output

16: 1, Output 1

38: Fan relay output

17: 2, Output 2

39: NC, Alarm relay output

18: 3, Output 3

40: C, Alarm relay output

19: 4, Output 4

41: NO, Alarm relay output

20: 5, Output 5

42: A(+), CPC-NET

21: 6, Output 6

43: B(-), CPC-NET

22: 7, Output 7

(1)

44: S, GND for CPC-NET

(1)

Model Controller MASTER control VAR FAST 12

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3

2

1

4

5 6

7 8 9 10 11 12 13

15

14

16 17

18 19 20

21 22 23

24 25 26

27

28 29 30 31 32 33 34 35 36 37 38 39 40 41

42

43

44

Figure 2: Controller MASTER control VAR FAST terminals�

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3.5.- CONNECTION DIAGRAM

3�5�1�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL�

Connection type: 3U.3C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S2

P1

P2

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

Power Supply

COM 1 2 3 4 5 6

COM

ACT C1...C6

Power Supply

Figure 3: 3 voltages + Neutral and 3 currents, Controller MASTER control VAR FAST 6 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”

Note: In this type of connection, the connection from Neutral to VLN is not mandatory.

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3�5�2�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL�

Connection type: 3U.3C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S2

P1

P2

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

COM 1 2 3 4 5 6 7 8 9 10 11 12

COM

ACT C1...C12

Power Supply

Figure 4: 3 voltages + Neutral and 3 currents, Controller MASTER control VAR FAST 12 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”

Note: In this type of connection, the connection from Neutral to VLN is not mandatory.

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Controller MASTER control VAR FAST

3�5�3�- 3 VOLTAGES + NEUTRAL AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL�

Connection type: 3U.1C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

COM 1 2 3 4 5 6

COM

ACT C1...C6

Power Supply

Figure 5: 3 voltages + Neutral and 1 current, Controller MASTER control VAR FAST 6 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”

Note: In this type of connection, the connection from Neutral to VLN is not mandatory.

Note: In this type of connection, the current transformer must be connected to the IL1 termi-

nals.

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3�5�4�- 3 VOLTAGES + NEUTRAL AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL�

Connection type: 3U.1C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

Power Supply

COM 1 2 3 4 5 6 7 8 9 10 11 12

COM

ACT C1...C12

Power Supply

Figure 6: 3 voltages + Neutral and 1 current, Controller MASTER control VAR FAST 12 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”

Note: In this type of connection, the connection from Neutral to VLN is not mandatory.

Note: In this type of connection, the current transformer must be connected to the IL1 termi-

nals.

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Controller MASTER control VAR FAST

3�5�5�- 2 VOLTAGES AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 6 MODEL�

Connection type: 2U.1C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

Power Supply

COM 1 2 3 4 5 6

COM

ACT C1...C6

Power Supply

Figure 7: 2 voltages and 1 current, Controller MASTER control VAR FAST 6 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”

Note: In this type of connection, the Neutral connection is not necessary.

Note: In this type of connection, the current transformer must be connected to the IL1 termi-

nals, and the two voltages must be connected to VL1 and VL2.

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Instruction Manual

3�5�6�- 2 VOLTAGES AND 1 CURRENT, CONTROLLER MASTER CONTROL VAR FAST 12 MODEL�

Connection type: 2U.1C

VLN

IL2

S1

L1

L2

L3

N

VL1 VL2 VL3

S1 S2

P1

P2

S1 S1S2 S2 S2

IL3

IL1

A1 A2

COM 1 2 3 4 5 6 7 8 9 10 11 12

COM

ACT C1...C12

Power Supply

Figure 8: 2 voltages and 1 current, Controller MASTER control VAR FAST 12 model�

Note: If the connection layout mentioned above is not respected, you must adjust the phase following the procedure described in section "5�6�- PHASE CONNECTION”.

Note: In this type of connection, the Neutral connection is not necessary.

Note: In this type of connection, the current transformer must be connected to the IL1 termi-

nals, and the two voltages must be connected to VL1 and VL2.

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Controller MASTER control VAR FAST

3�5�7�- LEAKAGE CURRENT CONNECTION, IΔ

To measure the leakage current, an earth leakage transformer must be used, such as WGS. The leakage current transformer must be connected such as to measure the current of the capacitor bank. This will detect any leakage in the capacitors of the capacitor bank.

~

TC

LOAD

CAPACITORS

S1

S2

P1

P2

I∆

S1

S2

IL1, IL2, IL3

Figure 9: Connection of the leakage current transformer (IΔ)�

Note: The earth leakage transformer must have a ratio of 500 turns. The maximum leakage current that the unit can measure correctly is 1.5A AC, even though the maximum input is 5A AC via the earth leakage transformer.

Do not operate the leakage current transformer with the Controller MASTER control VAR FAST powered on.

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3.6.- STARTING UP THE UNIT

Once the Controller MASTER control VAR FAST is powered on, the following screen appears on the display, Figure 10, which shows the name of the unit, the version and the model.

Figure 10: Controller MASTER control VAR FAST home screen�

After a few seconds, the main measurement screen appears.

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4�- OPERATION

The Controller MASTER control VAR FAST is a reactive energy regulator unit that measures the cos φ of the grid and that regulates the connection and disconnection of capacitors in order to correct it. The control is carried out in the four quadrants, Figure 11.

Inductive Inductive

Capacitive Capacitive

Inductive

Capacitive Capacitive

Generated

Power

Consumed

Power

Consumed

Power

Generated

Power

Figure 11: Measurement and Compensation in the four quadrants�

In addition to the basic functions of any regulator the Controller MASTER control VAR FAST:

 Performs the functions of a network analyzer, measuring and displaying multiple parameters.

 Has a Plug&Play function for automatic conguration of the unit.

 Has an AutoTest and manual Test function for testing the status of the capacitor bank capac-

itors.

 Has an FCP system which minimises the number of capacitor connections and disconnections.

 Supports step forcing.

 Can work with various connection types.

 Measures leakage current with the option of associating an alarm and conducting a search

for and cancelling the faulty capacitor.

 Has multiple alarms for warning of possible faults, whether in the capacitor bank or in the installation.

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4.1.- DEFINITIONS

This section provides a number of denitions that may be useful for understanding the operation of the unit.

4�1�1 FOUR-QUADRANT REGULATOR�

This means that the regulator is capable of performing the measurement and regulation functions when the active power is transferred from the mains to the loads (common case in a consumer installation) or when the load is transferred to the mains (in the case of installations with generators that not only allow the consumption of energy, but can also export and sell energy).

4�1�2 STAGES AND STEPS

A distinction must be established between stages and steps. In this manual, a Stage is described as each group of capacitor banks into which the power factor compensation unit is divided, which may have different power ratings, usually in ratios of 1:1, 1:2, 1:2:4, etc.

A step is each one of the total power fractions (power of the rst step) that can be regulated by using stages with different weights.

4�1�3 FCP SYSTEM (FAST Computerized Program)�

This system controls the connection sequence of the various stages, tending to minimise the number of operations and to match the usage times of the various stages in order to achieve a pre-determined required nal power. The operations are carried out such that, in the case of stages with identical power, the stage that has been disconnected the longest is connected when there is demand and the stage that has been connected the longest is disconnected when there is a surplus.

4�1�4 REGULATION PROGRAM�

The power ratings of the various groups or stages usually follow certain patterns called "programs”.

The program indicates the power ratios between the various stages. The most frequent programs are:

Program 1�1�1�1 . All stages have the same power. For example: a 100 kvar unit with 5 steps would be made up of 5 identical 20 kvar stages, and would be described as a (5 x 20) kvar unit.

Program 1�2�2�2 . Every stage after the rst stage has twice as much power as the rst stage.

For example: a 180 kvar unit with 5 stages would be made up of a rst 20 kvar stage and 4 identical 40 kvar stages, and would be described as a (20 + 4 x 40) kvar unit.

Program 1�2�4�4 . The second stage has twice as much power as the rst stage and the remaining stages after the second stage have four times as much power as the rst stage. For

example: a 300 kvar unit with 5 stages would be made up of a rst 20 kvar stage, a second 40 kvar stage and 3 identical 80 kvar stages. It would be described as a (20 + 40 + 3 x 80) kvar

unit.

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Other Programs. Other programs can be used, such as 1.2.2.4, 1.2.4.8, 1.1.2.2, etc. The meaning of the numbers, as can be deduced from the preceding cases, gives the power ratio between the rst stage, which receives a value of 1, and the subsequent stages (2 means twice as much power, 4 means four times as much power, etc.).

The unit can be used to congure programs from 1.1.1.1 to 1.9.9.9.

4�1�5� PLUG AND PLAY�

When a reactive energy regulator is installed, a series of parameters must be congured for its correct operation. Some of these parameters might be difcult to discover, for example, the voltage phases or the correspondence between measured current and its voltage, as well as the current transformer ratio. The Controller MASTER control VAR FAST includes an automatic process, which intelligently works out necessary parameters such as:

Connection type: detects the connection type used from among the possible options:

3U.3C, 3U.1C and 2U.1C.

Phase: identies the correspondence between the voltages and the currents connect- ed, regardless of the connection type detected previously. Number of stages installed and Program: sequentially connects all the stages to work out how many stages are installed and calculates the program, in other words, the power ratio between the capacitors. C/K: calculates the ratio between the current transformer and the power of the small- est step.

4�1�6 CONNECTION TIME (Ton) AND RECONNECTION TIME (Trec)�

The Connection time, Ton, denes the shortest possible time between changes in the status of the stages, in other words, between connections and disconnections. Therefore, the conguration of this parameter has a direct impact on the compensation speed, in other words, on the capacity for monitoring load changes. Setting a shorter connection time improves the power factor correction when the load can change quickly.

However, a shorter Ton will lead to a higher number of connections per time unit, possibly shortening the useful life of the associated components (thyristors, capacitors). To assess the number of connections, the Controller MASTER control VAR FAST uses individual energy meters for each stage.

The Reconnection time, Trec, is the shortest possible time between disconnecting a stage and reconnecting it. This time is necessary for the capacitor to discharge enough so that, when it is reconnected, it does not cause overcurrents in the system.

Both Ton and Trec have different time bases for the Controller MASTER control VAR (in sec- onds) and for the Controller MASTER control VAR FAST (in network cycles).

4�1�7 THD AND HARMONICS

Non-linear loads, such as those in rectiers, inverters, variable speed drivers, furnaces, etc., absorb non-sinusoidal periodic currents from the mains. These currents are made up of a fundamental component with a frequency of 50 or 60 Hz, plus a series of overlapping currents with frequencies that are multiples of the fundamental frequency; these are dened as harmonics. The result is a deformation of the current and, thus, of the voltage, which leads to a series of

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Instruction Manual

related side effects (conductor overload, circuit breakers and machines, phase unbalances, interferences in electronic units, RCCB trips, etc.).

The level of harmonics is usually measured with the total harmonic distortion rate (THD), which is the ratio, usually as a %, of the RMS value of the harmonic content and the value of the fundamental component.

4.2.- MEASUREMENT PARAMETERS

The unit displays the following electrical parameters:

4�2�1� CONNECTION TYPE: 3U.3C

Table 3: Controller MASTER control VAR FAST measurement parameters (3U.3C connection)

Parameter Units Phases

L1-L2-L3

N

Total

III

Max

(1)

Min

(2)

Phase-neutral voltage V

   

Phase-phase voltage V

   

Current A

   

Leakage current mA

  

Frequency Hz

(L1)  

Active Power M/kW

   

Apparent Power M/kVA

   

Total Reactive Power M/kvar

   

Inductive Reactive Power M/kvarL

   

Capacitive Reactive Power M/kvarC

   

Power factor PF

   

Cos φ φ

   

Voltage THD % % THD V

 

Current THD % % THD A

 

Harmonic Breakdown - Voltage (up to the 17th harmonic)

harm V

 

Harmonic Breakdown - Current (up to the 17th harmonic)

harm A

 

Active energy M/kWh



Inductive Reactive Energy M/kvarLh



Capacitive Reactive Energy M/kvarCh



Apparent energy M/kVAh



Temperature ºC



No. of operations x1000



Total activated power %



(1)

Displays the maximum value.

(2)

Displays the minimum value.

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4�2�2� CONNECTION TYPE: 3U.1C

Table 4: Controller MASTER control VAR FAST measurement parameters (3U.1C connection)

Parameter Units Phases

L1-L2-L3

N

Total

III

Max

(1)

Min

(2)

Phase-neutral voltage V

   

Phase-phase voltage V

   

Current A

(L1)  

Leakage current mA

  

Frequency Hz

(L1)  

Active Power M/kW

  

Apparent Power M/kVA

  

Total Reactive Power M/kvar

  

Inductive Reactive Power M/kvarL

  

Capacitive Reactive Power M/kvarC

  

Power factor PF

  

Cos φ φ

  

Voltage THD % % THD V

 

Current THD % % THD A

(L1) 

Harmonic Breakdown - Voltage

(up to the 17th harmonic)

harm V

 

Harmonic Breakdown - Current

(up to the 17th harmonic)

harm A

(L1) 

Active energy M/kWh



Inductive Reactive Energy M/kvarLh



Capacitive Reactive Energy M/kvarCh



Apparent energy M/kVAh



Temperature ºC



No. of operations x1000



Total activated power %



(1)

Displays the maximum value.

(2)

Displays the minimum value.

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Instruction Manual

4�2�3� CONNECTION TYPE: 2U.1C

Table 5: Controller MASTER control VAR FAST measurement parameters (2U.1C connection)

Parameter Units Phases

L1-L2-L3

N

Total

III

Max

(1)

Min

(2)

Phase-neutral voltage V Phase-phase voltage V

(L1-L2)  

Current A

(L1)  

Leakage current mA

  

Frequency Hz

(L1)  

Active Power M/kW

  

Apparent Power M/kVA

  

Total Reactive Power M/kvar

  

Inductive Reactive Power M/kvarL

  

Capacitive Reactive Power M/kvarC

  

Power factor PF

  

Cos φ φ

  

Voltage THD % % THD V

(L1-L2) 

Current THD % % THD A

(L1) 

Harmonic Breakdown - Voltage (up to the 17th harmonic)

harm V

(L1-L2) 

Harmonic Breakdown - Current (up to the 17th harmonic)

harm A

(L1) 

Active energy M/kWh



Inductive Reactive Energy M/kvarLh



Capacitive Reactive Energy M/kvarCh



Apparent energy M/kVAh



Temperature ºC



No. of operations x1000



Total activated power %



(1)

Displays the maximum value.

(2)

Displays the minimum value.

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Controller MASTER control VAR FAST

4.3.- KEY FUNCTIONS

The Controller MASTER control VAR FAST has 5 keys that can be used to browse the vari- ous screens and program the unit.

Key functions on the measurement screens (Table 6):

Table 6: Key functions on the measurement screens�

Key Short press Long press (3 s)

Previous screen -

Next screen -

Display minimum value Delete minimum values

Display maximum value Delete maximum values

Next parameter Enter the programming menu

Very long press (10 s�)

Enter the Test screens

Note: See “4.6.1. MEASUREMENT STATUS” for further details.

Key functions on the Conguration and Test screens, query mode (Table 7):

Table 7: Key functions on the Conguration and Test screens, query mode.

Key Short press Long press (3 s)

Previous screen Test: Manual connection of the selected capacitor

Next screen Test: Manual disconnection of the selected capacitor

Previous parameter

Next parameter

Conguration: Edit mode

Test: Start AutoTest

Test: Cancel the AutoTest process

Very long press (10 s�)

Exit the Test screens

Note: See “4.6.2. TEST STATUS” and “5.- CONFIGURATION” for further details.

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Key functions on the Conguration and Test screens, editing mode (Table 8):

Table 8: Key functions on the Conguration and Test screens, edit mode.

Key Short press

Increase the value or show the next option.

Reduce the value or show the previous option.

Next conguration parameter

Previous conguration parameter

Exit Edit mode

Note: See “4.6.2. TEST STATUS” and “5.- CONFIGURATION” for further details.

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4.4.- DISPLAY

The unit has a backlit LCD display. The display is divided into four areas (Figure 12):

Analogue bar

Status of the capacitors

Status of the device

Data area

Figure 12: Areas of the Controller MASTER control VAR FAST display�

 The data area: displays the instantaneous, maximum and minimum values of each

one of the phases which the unit is measuring or calculating.

Status of the capacitors: displays the status of the unit's relays.

Status of the unit: displays the current status of the unit.

Analogue bar: congurable, shows the current, current THD or connected power of

the capacitor bank as a percentage.

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4�4�1� STATUS OF THE CAPACITORS

Estado dos condensadores

Figure 13: Status of the capacitors�

This area shows the status of the relays (stages) of the unit, and thus of the capacitors connected to it.

The possible states are:

 Nothing is displayed if the stage is not connected and congured as AUTO.

 The icon is displayed if the stage is connected and congured as AUTO.

 The icon is displayed with the bottom static bar if the stage is connected and con-

gured as On.

The icon is displayed with the bottom bar blinking if the stage is connected and

congured as On NC.

Only the static bottom bar is displayed if the stage is disconnected and configured as

OFF.

Only the blinking bottom bar is displayed if the stage is cancelled by the leakage cur-

rent alarm E15.

In the setup menu (“5.12.- STATUS OF THE STAGES”) the status of the stages is selected from the following options:

 AUTO: The status of the stage depends on the operation performed by the unit.  On: Stage forced to ON, always connected.  OFF: Stage forced to OFF, always disconnected.

 On NC: Stage forced to ON, always connected but the system does not take into

account its connected power.

By default, all the stages are configured as AUTO.

4�4�2� STATUS OF THE UNIT

This area displays the status of the unit in accordance with the following icons:

The unit is in measurement and regulation mode. The unit does not measure or regulate. Indicates that you are in the setup menu. Indicates that you are in the test menu. Indicates that, within the setup menu, you are in editing mode.

Indicates that you are viewing the instantaneous value. Indicates that you are viewing the maximum value.

Indicates that you are viewing the minimum value.

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4�4�3� ANALOGUE BAR

Figure 14: Analogue Bar

This bar is displayed on the measurement screens, and can show:

 the current of each phase as a percentage.  the current THD of each phase.  the power connected to the capacitor bank.

The parameter to be displayed is selected in the setup menu. (“5.14.- ANALOGUE BAR”)

The display screen also shows the results of the TEST and the load % of the capacitors.

4�4�4� OTHER SYMBOLS ON THE DISPLAY

The display also shows the following:

Alarm: When the unit detects an alarm, the backlight of the display ashes and the alarm icon lights up. The cause of the alarm can be seen on the active alarms screen. ("4.6.- OPERATING STATES”)

Target cosine: The icons indicate which one of the 4 possible target cosines has been selected. (“5.3.- TARGET COS φ”)

Editing locked / unlocked: The editing of the programming parameters is password protected. These icons indicate whether or not this option is locked.

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4.5.- LED INDICATORS

The Controller MASTER control VAR FAST unit features:

 A CPU LED: Indicates that the unit is working properly by blinking once per second.

 An Alarm LED: Indicates that an alarm is activated.

 A Fan LED: Indicates that the fan is operating.

 A key pressed LED: Lights up when any of the 5 keys are pressed.

CPU

Fan

Alarm

Key pressed

Figure 15:LED indicators of the Controller MASTER control VAR FAST�

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4.6.- OPERATING STATES

The Controller MASTER control VAR FAST has 2 operating states with the display screens

matching the selected status:

 Measurement status, ,  Test status, ,

4�6�1� MEASUREMENT STATUS

This status is identied by the symbol in the unit status area of the display (Figure 12). It is the normal operating status of the Controller MASTER control VAR FAST, in which the unit measures the various grid parameters and acts according to the congured parameters, connecting or disconnecting the capacitors from the capacitor bank.

Use keys and to browse the various screens.

Delete maximum values:

On the maximum value display screen, press the key for more than 3 seconds.

Delete minimum values:

On the minimum value display screen, press the key for more than 3 seconds.

If 5 minutes pass without any keys being pressed, the unit returns to the main screen.

The display screens vary according to the connection type of the installation.

4�6�1�1� 3U.3C Connection (3 Voltages + Neutral and 3 currents)

Main Screen Parameters

Active Power III(kW or MW) Reactive Power III(kvar or Mvar) Cos φ

L: Inductive / C: capacitive +: consumed / -: generated

Phase - Phase Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

Press the key to switch to the Currents screen.

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Phase - Neutral Voltages Parameters

L1 Phase - Neutral Voltage (V or kV) L2 Phase - Neutral Voltage (V or kV) L3 Phase - Neutral Voltage (V or kV) Phase - Neutral Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

Phase - Phase Voltages Parameters

L1 Phase - Phase Voltage (V or kV) L2 Phase - Phase Voltage (V or kV) L3 Phase - Phase Voltage (V or kV) Phase - Phase Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

Currents Parameters

L1 Current (A) L2 Current (A) L3 Current (A) N Current (A)

Display the minimum values.

Display the maximum values.

Press the or key to switch to the Cosine φ screen.

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Cosine φ Parameters

L1 Cos φ L2 Cos φ L3 Cos φ Cos φ III

L: Inductive / C: capacitive +: Consumed / -: generated

Display the minimum values.

Display the maximum values.

Press the key to switch to the Energy III consumed screen.

Power Factor Parameters

L1 Power Factor L2 Power Factor L3 Power Factor

Power Factor III

L: Inductive / C: capacitive +: Consumed / -: generated

Display the minimum values.

Display the maximum values.

Power III Parameters

Active Power III(kW or MW) Inductive Reactive Power III

(kvarL or MvarL)

Capacitive Reactive Power III

(kvarC or MvarC)

Apparent Power III (kVA or MVA)

Display the minimum values.

Display the maximum values.

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Active Power Parameters

L1 Active power (kW or MW) L2 Active power (kW or MW) L3 Active power (kW or MW) Active Power III(kW or MW)

Display the minimum values.

Display the maximum values.

Inductive Reactive Power Parameters

L1 Inductive Reactive Power L2 Inductive Reactive Power L3 Inductive Reactive Power Inductive Reactive Power III

(kvarL or MvarL)

Display the minimum values.

Display the maximum values.

Capacitive Reactive Power Parameters

L1 Capacitive Reactive Power L2 Capacitive Reactive Power L3 Capacitive Reactive Power Capacitive Reactive Power III

(kvarC or MvarC)

Display the minimum values.

Display the maximum values.

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Apparent Power Parameters

L1 Apparent Power L2 Apparent Power L3 Apparent Power

Apparent Power III

(kVA or MVA)

Display the minimum values.

Display the maximum values.

Leakage current / Frequency

/ Temperature

Parameters

Leakage current (mA) Frequency (Hz) Temperature (ºC)

Display the minimum values.

Display the maximum values.

Voltage THD Parameters

L1 Voltage THD L2 Voltage THD L3 Voltage THD

(%)

Display the maximum values.

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Voltage harmonics Parameters

L1 Voltage harmonic L2 Voltage harmonic L3 Voltage harmonic

(%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

Current THD Parameters

L1 Current THD L2 Current THD L3 Current THD

(%)

Display the maximum values.

Current harmonics Parameters

L1 Current harmonic L2 Current harmonic L3 Current harmonic

(%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

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Energy III consumed Parameters

Active Energy III consumed

(kWh or MWh)

Inductive Reactive Energy III consumed

(kvarLh or MvarLh)

Capacitive Reactive Energy III consumed

(kvarCh or MvarCh)

Apparent Energy III consumed

(kVAh or MVAh)

Press the key to switch to the Main screen.

Energy III generated Parameters

Active Energy III generated

(kWh or MWh)

Inductive Reactive Energy III generated

(kvarLh or MvarLh)

Capacitive Reactive Energy III generated

(kvarCh or MvarCh)

Apparent Energy III generated

(kVAh or MVAh)

Operations Parameters

No� of operations of stage C1 to C12

Three screens show the number of operations of the 12 possible stages.

for more than 3 seconds: delete the no.

of operations.

This parameter should be associated with an alarm that is activated when the number of operations exceeds a pre-determined value (for example, 5000 operations) in order to perform the maintenance of this stage. There are thousands of operations, so the value displayed is in thousands of operations (which is the reason for the k icon).

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Active alarms Parameters

Active alarm code E01 to E017 (Table 9)

If there are more than 4 alarms, the information is scrolled on the screen.

Table 9: Alarm codes�

Code Description

E01

No current� The load current is lower than the minimum value or some of the current transformers (CT) are not connected. It is activated when the secondary current of the transformer is lower than 50 mA in some of the phases. The unit disconnects the capacitors automatically.

E02

Overcompensation. The unit measures capacitive power but all the stages are disconnected. This can be due to an incorrect adjustment of the C/K parameter. In order to avoid possible false actions, this alarm has a predened delay of 90 seconds.

E03

Undercompensation. The unit measures inductive power but all the stages are disconnected. This can be due to an incorrect adjustment of the C/K parameter. In order to avoid possible false actions, this alarm has a predened delay of 90 seconds.

E04

Overcurrent. The measured current exceeds the nominal current by +20 % in some of the phases. The nominal current is considered to be that of the CT primary. In order to avoid possible false actions, this alarm has a predened delay of 5 seconds.

E05

Overvoltage. The voltage measured in some of the phases exceeds the congured voltage (Vp-n). The unit disconnects the capacitors automatically. In order to avoid possible false actions, this alarm has a predened delay of 5 seconds.

E06

Low voltage. The voltage in some of the phases is lower than the congured voltage (Vp-n). The unit disconnects the capacitors automatically. In order to avoid possible false actions, this alarm has a predened delay of 5 seconds.

E07

Cos φ alarm. The three-phase cos φ is lower than the limit congured in the Cos φ alarm. Also, the measured currents should be higher than the congured threshold. In order to avoid possible false actions, this alarm has a predened delay of 15 seconds.

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Table 9 (Continuation):Alarm codes�

Code Description

E08*

Voltage THD Alarm. The Voltage THD levels in some of the phases are higher than those congured in the Voltage THD alarm.

E09*

Current x I THD Alarm. The IxITHD levels in some of the phases are higher than those congured in the IxITHD alarm. (IxITHD refers to the multiplication of the current by the ITHD of the same current, see "5�23�- CURRENT x I THD

ALARM")

E10*

Temperature Alarm. The measured temperature is higher than that congured in the Temperature alarm.

E11

No Connection Status due to E08, E09 or E10.

E12 Disconnection Status due to E08, E09 or E10.

E13

Leakage Alarm� The leakage current is higher than that congured in the Leakage Current alarm.

E14

Repeated Leakage Alarm. Leakages have been detected repeatedly in the system, but they are not caused by a capacitor.

E15

Leakage in Capacitors Alarm. Leakages have been detected, which were caused by some of the capacitors, and this stage is disabled. The disabled ca-

pacitors will start to blink on the screen. The E13 message will also be displayed. In order to enable these capacitors again, view the conguration of the Leakage alarm.

E16

Leakage transformer detection Alarm� The Leakage alarm has been enabled, but the unit does not detect the connection of the leakage current transformer.

E17

Number of connections alarm� The congured number of operations has been exceeded (any capacitor)

* In these alarms, two levels have been congured:

 The Lo value: When the unit exceeds this value for 30 minutes, the corresponding alarm is

triggered and, if alarm E11 is enabled, the Controller MASTER control VAR FAST unit enters No Connection status and activates alarm E11.

 The HI value : if the unit exceeds this value for 30 seconds, the corresponding alarm is triggered and, if alarm E12 is enabled, the Controller MASTER control VAR FAST unit enters Disconnection status and activates alarm E12.

If the unit falls back under the Lo value for 10 minutes, it deactivates the alarms and returns to the normal operating status.

In the No Connection status, the unit does not connect the stages, but also does not disconnect them if the operation requires it.

In the Disconnection status, it disconnects the stages and does not allow them to connect.

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4�6�1�2� 3U.1C Connection (3 Voltages + Neutral and 1 current)

Main Screen Parameters

Active Power III(kW or MW) Reactive Power III(kvar or Mvar)

+: inductive / -: capacitive

Cos φ

L: Inductive / C: capacitive +: consumed / -: generated

Phase - Phase Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

Press the key to switch to the Currents screen.

Phase - Neutral Voltages Parameters

L1 Phase - Neutral Voltage (V or kV) L2 Phase - Neutral Voltage (V or kV) L3 Phase - Neutral Voltage (V or kV) Phase - Neutral Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

Phase - Phase Voltages Parameters

L1 Phase - Phase Voltage (V or kV) L2 Phase - Phase Voltage (V or kV) L3 Phase - Phase Voltage (V or kV) Phase - Phase Voltage III(V or kV)

Display the minimum values.

Display the maximum values.

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Currents Parameters

Current (A)

Display the minimum values.

Display the maximum values.

Press the or key to switch to the Cosine φ screen.

Cosine φ Parameters

Cos φ

L: Inductive / C: capacitive +: consumed / -: generated

Display the minimum values.

Display the maximum values.

Press the key to switch to the Energy III consumed screen.

Power Factor Parameters

Power factor

L: Inductive / C: capacitive +: consumed / -: generated

Display the minimum values.

Display the maximum values.

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Power III Parameters

Active Power III(kW or MW) Inductive Reactive Power III

(kvarL or MvarL)

Capacitive Reactive Power III

(kvarC or MvarC)

Apparent Power III (kVA or MVA)

Display the minimum values.

Display the maximum values.

Leakage current / Frequency

/ Temperature

Parameters

Leakage current (mA) Frequency (Hz) Temperature (ºC)

Display the minimum values.

Display the maximum values.

Voltage THD Parameters

L1 Voltage THD L2 Voltage THD L3 Voltage THD

(%)

Display the maximum values.

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Voltage harmonics Parameters

L1 Voltage harmonic L2 Voltage harmonic L3 Voltage harmonic

(%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

Current THD Parameters

Current THD (%)

Display the maximum values.

Current harmonics Parameters

Current harmonic (%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

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Energy III consumed Parameters

Active Energy III consumed

(kWh or MWh)

Inductive Reactive Energy III consumed

(kvarLh or MvarLh)

Capacitive Reactive Energy III consumed

(kvarCh or MvarCh)

Apparent Energy III consumed

(kVAh or MVAh)

Press the key to switch to the Main screen.

Energy III generated Parameters

Active Energy III generated

(kWh or MWh)

Inductive Reactive Energy III generated

(kvarLh or MvarLh)

Capacitive Reactive Energy III generated

(kvarCh or MvarCh)

Apparent Energy III generated

(kVAh or MVAh)

Operations Parameters

No� of operations of stage C1 to C12

Three screens show the number of operations of the 12 possible stages.

for more than 3 seconds: delete the no.

of operations.

This parameter should be associated with an alarm that is activated when the number of operations exceeds a pre-determined value (for example, 5000 operations) in order to perform the maintenance of this stage. There are thousands of operations, so the value displayed is in thousands of operations (which is the reason for the k icon).

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Active alarms Parameters

Active alarm code E01 to E017 (Table 9).

If there are more than 4 alarms, the information is scrolled on the screen.

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4�6�1�3� 2U.1C Connection (2 Voltages and 1 current)

Main Screen Parameters

Active Power III(kW or MW) Reactive Power III(kvar or Mvar)

+: inductive / -: capacitive

Cos φ

L: Inductive / C: capacitive +: consumed / -: generated

Phase - Phase Voltage (V or kV)

Display the minimum values.

Display the maximum values.

Press the key to switch to the Currents screen.

Phase - Phase Voltages Parameters

Phase - Phase Voltage (V or kV)

Display the minimum values.

Display the maximum values.

Currents Parameters

Current (A)

Display the minimum values.

Display the maximum values.

Press the or key to switch to the Cosine φ screen.

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Cosine φ Parameters

Cos φ

L: Inductive / C: capacitive +: consumed / -: generated

Display the minimum values.

Display the maximum values.

Press the key to switch to the Energy III consumed screen.

Power Factor Parameters

Power factor

L: Inductive / C: capacitive +: consumed / -: generated

Display the minimum values.

Display the maximum values.

Power III Parameters

Active Power III(kW or MW) Inductive Reactive Power III

(kvarL or MvarL)

Capacitive Reactive Power III

(kvarC or MvarC)

Apparent Power III (kVA or MVA)

Display the minimum values.

Display the maximum values.

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Leakage current / Frequency

/ Temperature

Parameters

Leakage current (mA) Frequency (Hz) Temperature (ºC)

Display the minimum values.

Display the maximum values.

Voltage THD Parameters

Voltage THD (%)

Display the maximum values.

Voltage harmonics Parameters

Voltage harmonic (%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

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Current THD Parameters

Current THD (%)

Display the maximum values.

Current harmonics Parameters

Current harmonic (%)

Change the harmonic no.:

3, 5, 7, 9, 11, 13, 15, 17.

Display the maximum values.

Energy III consumed Parameters

Active Energy III consumed

(kWh or MWh)

Inductive Reactive Energy III consumed

(kvarLh or MvarLh)

Capacitive Reactive Energy III consumed

(kvarCh or MvarCh)

Apparent Energy III consumed

(kVAh or MVAh)

Press the key to switch to the Main screen.

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Energy III generated Parameters

Active Energy III generated

(kWh or MWh)

Inductive Reactive Energy III generated

(kvarLh or MvarLh)

Capacitive Reactive Energy III generated

(kvarCh or MvarCh)

Apparent Energy III generated

(kVAh or MVAh)

Operations Parameters

No� of operations of stage C1 to C12

Three screens show the number of operations of the 12 possible stages.

for more than 3 seconds: delete the no.

of operations.

This parameter should be associated with an alarm that is activated when the number of operations exceeds a pre-determined value (for example, 5000 operations) in order to perform the maintenance of this stage. There are thousands of operations, so the value displayed is in thousands of operations (which is the reason for the k icon).

Active alarms Parameters

Active alarm code E01 to E017

(Table 9) If there are more than 4 alarms, the information is scrolled on the screen.

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4�6�2� TEST STATUS

This status is identied by the symbol in the unit status area of the display (Figure 12).

The stages can be connected and disconnected manually, and the measured parameters that relate to each one of the stages can be displayed. It also comprises the AutoTest function, which scans and calculates all the stages of the unit.

A very long press (> 10s) of the key in any of the measurement screens causes the unit to enter the Test status.

A very long press (> 10s) of the key in any of the test screens causes the unit to return to the Measurement status.

Use keys and to browse the various screens.

If 5 minutes pass without any keys being pressed, the unit returns to the main screen.

Disconnection screen Parameters

Transition screen: used for the unit to disconnect all the stages automatically before entering Test status. While in this screen, the unit does not respond to the keys. The unit automatically exits this screen, and this can take a certain amount of time.

AutoTest Parameters

AutoTest home screen.

To start the AutoTest:

Press the key, OFF blinks. Press the key to switch from OFF to START Press the key to start the AutoTest

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Once the AutoTest has started, the results of the capacitors that are connected and disconnected are shown:

Leakage current (mA) Capacitive Reactive Power

(kvarC or MvarC) Capacitive Power % of each capacitor relative to the total estimated value.

The icon blinks during the AutoTest.

A long press (> 3 s) of the key cancels the AutoTest. At the end of the AutoTest, the unit automatically returns to the Individual Test screen.

Individual Test Parameters

Leakage current (mA) Capacitive Reactive Power

(kvarC or MvarC) Capacitive Power % of each capacitor relative to the total estimated value.

Switches between the various

capacitors.

A long press (> 3 s) of the key connects the capacitor that is being displayed, taking into account the programmed connection and reconnection times.

A long press (> 3 s) of the key disconnects the capacitor that is being displayed, taking into account the programmed connection and reconnection times.

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Cosine φ test Parameters

Display screen of the:

Cos φ (2U.1C and 3U.1C connection)

L1 Cos φ (3U.3C connection) L2 Cos φ (3U.3C connection) L3 Cos φ (3U.3C connection) Cos φ III(3U.3C connection)

L: Inductive / C: capacitive +: consumed / -: generated

Current THD Test Parameters

Display screen of the:

Current THD (2U.1C and 3U.1C connection)

L1 Current THD (3U.3C connection) L2 Current THD (3U.3C connection) L3 Current THD (3U.3C connection)

Power III Test Parameters

Display screen of the:

Active Power III(kW or MW) Inductive Reactive Power III

(kvarL or MvarL)

Capacitive Reactive Power III

(kvarC or MvarC)

Apparent Power III (kVA or MVA)

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4.7.- INPUTS

The Controller MASTER control VAR FAST comprises two digital inputs (terminals 31 and 32 of Figure 2) for activating any of the four target cos φ, in other words, the desired power factor for the installation, which can be programmed in the unit. See “5.3.- TARGET COS φ”

Table 10: Selection of the target cos φ.

Digital input 2 Digital Input 1

Target cos φ

0 0 1 0 1 2

1 0 3 1 1 4

On the display, the icon indicates which of the 4 possible target cosines was selected.

4.8.- OUTPUTS

The unit features:

 A relay (terminals 37 and 38 of Figure 2) dedicated to activating a fan when a pre-de-

termined temperature is exceeded, which can be programmed in "5.15.- FAN”, is also

connected to the Fan LED.

 A fully programmable alarm relay (terminals 39, 40 and 41 of Figure 2), see

“5.19.- ENABLING ALARMS”

 Two digital outputs, fully programmable optoisolated NPN transistors (terminals 34,

35 and 36 of Figure 2 ), see “5.19.- ENABLING ALARMS”

Controller MASTER control VAR FAST 6 model:

 Six optoMOS relay outputs (terminals 15 ...21 of Figure 2) for the regulation of cos φ

via capacitors.

Controller MASTER control VAR FAST 12 model:

 Twelve optoMOS relay outputs (terminals 15 ...27 of Figure 2) for the regulation of

cos φ via capacitors.

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4.9.- RS-485 COMMUNICATIONS

Controller MASTER control VAR FAST units have an RS-485 serial communication output with the Modbus RTU ® communications protocol

4�9�1� CONNECTIONS

The RS -485 cable should be wired with a twisted pair cable with mesh shield (minimum 3 wires), with a maximum distance between the Controller MASTER control VAR FAST and the master unit of 1,200 metres. A maximum of 32 Controller MASTER control VAR FAST units can be connected to this bus.

Use an intelligent RS-232 to RS-485 network protocol converter (M54020 intelligent converter) to establish the communications with the master unit. This converter does away with the need for the Pin 7 connection on the RS-485 side.

B ( - )

A ( + )

S

A( + )

B( - )

S

RS-232 / USB / Ethernet / Profibus ...

PC

RS-485

RS-232 USB Ethernet Profibus ...

Figure 16: RS-485 Connection diagram�

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4�9�2� PROTOCOL

The Modbus protocol is an industry communication standard which enables networking of multiple units, with one master and several slaves. It allows individual master-slave dialogue and also enables commands in broadcast format. In the Modbus protocol, the Controller MASTER control VAR FAST unit uses the RTU (Remote Terminal Unit) mode.

In the RTU mode, the message start and end are detected with silences of at least 3.5 characters, and the 16-bit CRC error-detection method is used.

The Modbus functions implemented in the unit are as follows:

Function 01. Reading the status of the relays.

Functions 03 and 04. Reading logs. Function 05. Writing a relay. Function 0F. Writing multiple relays. Function 10. Writing multiple logs.

Exception codes

If the bit with greatest weight of the byte corresponding to the function in the reply of the unit is 1, this indicates that the next byte is an exception code.

Table 11: Exception codes, Modbus communications�

Exception code Description

01 Incorrect function. The function number is not implemented. 02 Incorrect address or number of logs out of limits 03 Data error. A CRC error has occurred

04

Peripheral error. An error occurred when accessing a peripheral (EEPROM, card, etc.)

06 Slave error or Slave busy. Retry sending.

Example:

Address Function

Exception

code

CRC

0 A 84 01 XXXX

Address: 0A, Peripheral number: 10 in decimal.

Function: 84, Reading function 04 with bit no. 7 at 1. Exception code: 01, see Table 9� CRC: 16-bit CRC.

For reasons of operational security of the unit, communication frames of more than 80 bytes are not accepted (sent or received).

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4�9�3� MODBUS MEMORY MAP

A.- Measurement Variables

For these variables Function 04 is implemented: reading logs. The Modbus addresses of all the tables are hexadecimal.

Table 12: Modbus memory map: measurement variables (Table 1)

Parameter Instantaneous Maximum Minimum Units

L1 Phase voltage 00-01 200-201 300-301 V/100 L1 Current 02-03 202-203 302-303 mA L1 Active power 04-05 204-205 304-305 W L1 Inductive Reactive Power 06-07 206-207 306-307 varL L1 Capacitive Reactive Power 08-09 208-209 308-309 varC L1 Reactive power 0A-0B 20A-20B 30A-30B var L1 Apparent power 0C-0D 20C-20D 30C-30D VA L1 Reactive Power Consumed 0E-0F 20E-20F 30E-30F var L1 Reactive Power Generated 10-11 210-211 310-311 var L1 Power Factor

(1)

12-13 212-213 312-313 -

L1 Cos φ

(1)

14-15 214-215 314-315 -

L1 kW sign

(1)

16-17 - - +1 or -1

L1 kvar sign

(1)

18-19 - - +1 or -1 L2 Phase voltage 1A-1B 21A-21B 31A-31B V/100 L2 Current 1C-1D 21C-21D 31C-31D mA L2 Active power 1E-1F 21E-21F 31E-31F W L2 Inductive Reactive Power 20-21 220-221 320-321 varL L2 Capacitive Reactive Power 22-23 222-223 322-323 varC L2 Reactive Power 24-25 224-225 324-325 var L2 Apparent Power 26-27 226-227 326-327 VA L2 Reactive Power Consumed 28-29 228-229 328-329 var L2 Reactive Power Generated 2A-2B 22A-22B 32A-32B var L2 Power Factor

(1)

2C-2D 22C-22D 32C-32D -

L2 Cos φ

(1)

2E-2F 22E-22F 32E-32F L2 kW sign

(1)

30-31 - - +1 or -1 L2 kvar sign

(1)

32-33 - - +1 or -1 L3 Phase voltage 34-35 234-235 334-335 V/100 L3 Current 36-37 236-237 336-337 mA L3 Active Power 38-39 238-239 338-339 W L3 Inductive Reactive Power 3A-3B 23A-23B 33A-33B varL L3 Capacitive Reactive Power 3C-3D 23C-23D 33C-33D varC L3 Reactive Power 3E-3F 23E-23F 33E-33F var L3 Apparent Power 40-41 240-241 340-341 VA L3 Reactive Power Consumed 42-43 242-243 342-343 var L3 Reactive Power Generated 44-45 244-245 344-345 var L3 Power Factor

(1)

46-47 246-247 346-347 L3 Cos φ

(1)

48-49 248-249 348-349 L3 kW sign

(1)

4A-4B - - +1 or -1

L3 kvar sign

(1)

4C-4D - - +1 or -1

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Table 12 (Continuation): Modbus memory map: measurement variables (Table 1)

Parameter Instantaneous Maximum Minimum Units

Three-phase voltage 4E-4F 24E-24F 34E-34F V/100 Three-phase current 50-51 250-251 350-351 mA Three-phase active power 52-53 252-253 352-353 W Three-phase inductive power 54-55 254-255 354-355 varL Three-phase capacitive power 56-57 256-257 356-357 varC Three-phase reactive power 58-59 258-259 358-359 var Three-phase apparent power 5A-5B 25A-25B 35A-35B VA Three-phase reactive power consumed 5C-5D 25C-25D 35C-35D var Three-phase reactive power generated 5E-5F 25E-25F 35E-35F var Three-phase power factor

(1)

60-61 260-261 360-361 -

Three-phase cos φ

(1)

62-63 262-263 362-363 -

Three-phase kW sign

(1)

64-65 - - -

Three-phase kvar sign

(1)

66-67 - - Frequency 68-69 268-269 368-369 Hz/10 L1-L2 Voltage 6A-6B 26A-26B 36A-36B V/100 L2-L3 Voltage 6C-6D 26C-26D 36C-36D V/100 L3-L1 Voltage 6E-6F 26E-26F 36E-36F V/100 Neutral current 70-71 270-271 370-371 mA Leakage Current 72-73 272-273 372-373 mA Temperature 74-75 274-275 374-375 ºC/10 L1 voltage THD % 7C-7D 27C-27D - % L2 Voltage THD % 7E-7F 27E-27F - % L3 Voltage THD % 80-81 280-281 - % L1 Current THD % 82-83 282-283 - % L2 Current THD % 84-85 284-285 - % L3 Current THD % 86-87 286-287 - % Active energy consumed kWh 88-89 - - kWh Active energy consumed Wh 8A-8B - - Wh Inductive energy consumed kvarLh 8C-8D - - kvarLh Inductive energy consumed varLh 8E-8F - - varLh Capacitive energy consumed kvarCh 90-91 - - kvarCh Capacitive energy consumed varCh 92-93 - - varCh Apparent energy consumed kVAh 94-95 - - kVAh Apparent energy consumed VAh 96-97 - - VAh Active energy consumed kWh 98-99 -- - kWh Active energy consumed Wh 9A-9B - - Wh Inductive energy generated kvarLh 9C-9D - - kvarLh Inductive energy generated varLh 9E-9F - - varLh Capacitive energy generated kvarCh A0-A1 - - kvarCh Capacitive energy generated varCh A2-A3 - - varCh Apparent energy generated kVAh A4-A5 - - kVAh Apparent energy generated VAh A6-A7 - - VAh

(1)

The cosφ and Power factor parameters are accompanied by the kW sign and kva sign parameters,

which are used to determine the quadrant in which each phase is being measured. See Figure 17.

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Inductive Inductive

Capacitive Capacitive

Inductive

Capacitive Capacitive

Generated

Power

Consumed

Power

Consumed

Power

Generated

Power

Figure 17: Diagram of the four measurement and compensation quadrants�

Table 13:Modbus memory map: measurement variables (Table 2)

Parameter Instantaneous Maximum Units

L1 Fundamental Voltage Harmonic 400-401 484-485 V/100 L1 Voltage Harmonics 402-415 486-499 % / 10 L2 Fundamental Voltage Harmonic 416-417 49A-49B mA L2 Voltage Harmonics 418-42B 49C-4AF % / 10 L3 Fundamental Voltage Harmonic 42C-42D 4B0-4B1 mA L3 Voltage Harmonics 42E-441 4B2-4C5 % / 10 L1 Fundamental Current Harmonic 442-443 4C6-4C7 mA L1 Current Harmonics 444-457 4C8-4DB % / 10 L2 Fundamental Current Harmonic 458-459 4DC-4DD mA L2 Current Harmonics 45A-46D 4DE-4F1 % / 10 L3 Fundamental Current Harmonic 46E-46F 4F2-4F3 mA L3 Current Harmonics 470-483 4F4-507 % / 10

Table 14:Modbus memory map: measurement variables (Table 3)

Parameter Instantaneous

Relay variable 600 Alarm variable 605-606 Status of the outputs 610 Status of the digital inputs 615 No. of connections, of each of the 12 outputs

(6 in the Controller MASTER control VAR FAST 6 model)

625-63C

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 OptoMOS relay outputs variable

Shows the status of the 12 (Controller MASTER control VAR FAST 12 model) or 6 (Control- ler MASTER control VAR FAST 6 model) optoMOS relay outputs.

It is a 16-bit variable in which each bit indicates the status of an output.

Bit

15-14-13-12

Bit11Bit10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit

0

Relay - 12 11 10 9 8 7 6 5 4 3 2 1

Where 0: disconnected output (OFF). 1: connected output (ON).

 Alarm Variable

Shows the status of the 17 possible alarms. It is a 32-bit variable in which each bit indicates the status of an alarm.

Bit15Bit14Bit13Bit12Bit11Bit10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit

0

E16 E15 E14 E13 E12 E11 E10 E09 E08 E07 E06 E05 E04 E03 E02 E01

Bit32Bit31Bit30Bit29Bit28Bit27Bit 26Bit 25Bit 24Bit 23Bit 22Bit 21Bit 20Bit 19Bit 18Bit

16

- - - - - - - - - - - - - - - E17

Where 0: alarm off (OFF). 1: alarm active (ON).

 Status of the outputs

Shows the status of the 4 outputs: Fan relay, alarm relay and the two digital outputs. It is a 16-bit variable in which each bit indicates the status of an output.

Bit

15�� 4

Bit 3 Bit 2 Bit 1 Bit 0

- Digital output 2 Digital output 1 Alarm relay Fan relay

- 1: OFF 0: ON

1: OFF

0: ON

1: ON

0: OFF

1: ON

0: OFF

 Status of the digital inputs

Shows the status of the 2 digital inputs. It is a 16-bit variable in which each bit indicates the status of an input.

Bit

15 to 2

Bit 1 Bit 0

- Digital input 2 Digital input 1

- 1: ON 0: OFF

1: ON

0: OFF

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B.- Programming variables The following functions are implemented for these variables:

Function 04: reading logs. Function 10: Writing multiple logs.

Table 15:Modbus memory map: programming variables (Table 1)

Unit parameters

Configuration variable Address

Serial number

(1)

1000-1003

Frame number

(1)

1010-1013

Version

(1)

1020-1021

Hardware log

(1)

1030-1033

(1)

The parameters of the unit have only implemented function 04.

Table 16:Modbus memory map: programming variables (Table 2)

RS-485 Communications

Configuration variable Address Valid data margin Default value

Peripheral no. 1071 1 to 254 1 Speed 1072 0 (9600), 1 (19200) 1 Parity 1073 0 (none), 1 (odd), 2 (even) 0 Length 1074 0 (8 bits), 1 (7 bits) 0 Stop bits 1075 0 (1 bits), 1 (2 bits) 0

Table 17:Modbus memory map: programming variables (Table 3)

CPC-NET communications

Configuration variable Address Valid data margin Default value

Speed 1082 0 (9600), 1(19200), 2(38400) 2 Parity 1083 0 (none), 1 (odd), 2 (even) 0 Stop bits 1085 0 (1 bits), 1 (2 bits) 0

Table 18:Modbus memory map: programming variables (Table 4)

Transformation ratios

Configuration variable Address Valid data margin Default value

Current primary 1090 1 - 10000 5 Current secondary 1091 0 (1 A), 1 (5 A) 1 Voltage primary 1092-1093 1 -99999 1 Voltage secondary 1094-1095 1 -99999 1

Table 19:Modbus memory map: programming variables (Table 5)

Connection type

Configuration variable Address Valid data margin Default value

Connection type 1100 0 (3U.3C), 1 (3U.1C), 2 (2U.1C) 0 Phase

(1)

1101 1 to 6 (Table 41) 1

Current 1

/ 1 / 2

1102

1 (Phase 1 direct), 2 (Phase 2 direct),

3 (Phase 3 direct), 4 (Phase 1 reverse),

5 (Phase 2 reverse), 6 (Phase 3 reverse),

1

Current 2

(1)(2)

1103 2

Current 3

(1)(2)

1104 3

(1)

Only used when the connection type is other than 3U.3C.

(2)

Indicates the relationship between the assigned voltage and the current direction.

Example: If you see Current 1 = 1, Current 2 = 5 and Current 3 = 3, this means that:

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Current 1 is assigned to voltage 1 in the direct direction, current 2 is assigned to voltage 2 in the reverse direction and current 3 is assigned to voltage 3 in the direct direction.

Table 20:Modbus memory map: programming variables (Table 6)

Status of the stages

Configuration variable Address Valid data margin Default value

C1 1110

0 (Auto),

1 (On),

2 (OFF),

3 (OnNc)

0

C2 1111 0 C3 1112 0 C4 1113 0 C5 1114 0 C6 1115 0 C7 1116 0 C8 1117 0 C9 1118 0 C10 1119 0 C11 111A 0 C12 111B 0

Table 21:Modbus memory map: programming variables (Table 7)

Voltage level

Configuration variable Address Valid data margin Default value

Voltage level

1121 0 (Low voltage)

1 (Medium/High voltage)

0

Table 22:Modbus memory map: programming variables (Table 8)

Display

Configuration variable Address Valid data margin Default value

Lighting (Backlight)

1125 0 (Comes on when pressing a key)

1 (ON), 2 (OFF)

0

Lighting level 1126 0 -10 (Value % / 10) 7 Language 1127 0 (Spanish), 1 (English), 2 (French) 0 Advanced setup 1128 0 (OFF), 1 (ON) 0 Analogue bar 1129 0 (No), 1 (Current), 2 (ITHD)

3 (Connected power)

0

Table 23:Modbus memory map: programming variables (Table 9)

Target cos φ

Configuration variable Address Valid data margin Default value

Target cos φ 1 1130

0 - 100 (Value x 100)

100 Target cos φ 2 1131 100 Target cos φ 3 1132 100 Target cos φ 4 1133 100 Target cos φ 1 type 1134

0 (Capacitive)

1 (Inductive)

1 Target cos φ 2 type 1135 1 Target cos φ 3 type 1136 1 Target cos φ 4 type 1137 1

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Table 24:Modbus memory map: programming variables (Table 10)

C/K factor

Configuration variable Address Valid data margin Default value

C/K factor 1138 0 - 100 (Value x 100) 100

Table 25:Modbus memory map: programming variables (Table 11)

Program

Configuration variable Address Valid data margin Default value

Program 1139 1111-1999 1111 Operation type 113A 0(FCP), 1(Total), 2(Sim) 0

Table 26:Modbus memory map: programming variables (Table 12)

No� of stages

Configuration variable Address Valid data margin Default value

No. of stages 113B

0-6 (Controller MASTER control VAR FAST 6)

0-12 (Controller MASTER control VAR FAST 12)

6

12

Table 27:Modbus memory map: programming variables (Table 13)

Connection and reconnection time

Configuration variable Address Valid data margin Default value

Connection time 113C 0-999 network cycles 10 Reconnection time 113D 0-999 network cycles 50

Table 28:Modbus memory map: programming variables (Table 14)

Alarm: Voltage THD

Configuration variable Address Valid data margin Default value

Low Value 1140 0 - 100 % 5 Hi Value 1141 0 - 100 % 10

Table 29:Modbus memory map: programming variables (Table 15)

Alarm: Current x I THD

Configuration variable Address Valid data margin Default value

Low Value 1142 0 - 100 % 4 Hi Value 1143 0 - 100 % 5

Table 30:Modbus memory map: programming variables (Table 16)

Alarm: Temperature

Configuration variable Address Valid data margin Default value

Low Value 1144 0 - 80 ºC 55 Hi Value 1145 0 - 80 ºC 70

Table 31:Modbus memory map: programming variables (Table 17)

Alarm: Leakage Current

Configuration variable Address Valid data margin Default value

Search for the responsible stage 1146 0 (OFF), 1 (ON) 0 Value 1147 10 - 1000 mA 300 Stages enabled 1148 0 (No), 1 (Yes) 0

Table 32:Modbus memory map: programming variables (Table 18)

Alarm: Cos φ

Configuration variable Address Valid data margin Default value

Value of Cos φ 1149 80 -100 (Value x 100) 95 Current value 114A 0 - 9999 A 20 Type of Cos φ 114B 0 (Capacitive), 1 (Inductive) 1

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Table 33:Modbus memory map: programming variables (Table 19)

Alarm: Fan

Configuration variable Address Valid data margin Default value

Value 114C 0 - 80 ºC 35 Enabled 114D 0 (OFF), 1 (ON) 0

Table 34:Modbus memory map: programming variables (Table 20)

Alarm: Voltage

Configuration variable Address Valid data margin Default value

Overvoltage value 114E-114F 0-99999 440 No Voltage Value 1150-1151 0-99999 360

Table 35:Modbus memory map: programming variables (Table 21)

No� of operations

Configuration variable Address Valid data margin Default value

No. of operations 1152-1153 1-99999 5000

Table 36:Modbus memory map: programming variables (Table 22)

Enabling alarms

Configuration variable Address Valid data margin Default value

Enable Alarm E01 1155

0 (OFF), 1 (ON)

1 Enable Alarm E02 1156 1 Enable Alarm E03 1157 1

Enable Alarm E04 1158 1 Enable Alarm E05 1159 0 Enable Alarm E06 115A 0 Enable Alarm E07 115B 0 Enable Alarm E08 115C 0 Enable Alarm E09 115D 0 Enable Alarm E10 115E 0 Enable Alarm E11 115F 0 Enable Alarm E12 1160 0 Enable Alarm E13 1161 0 Enable Alarm E14 1162 0 Enable Alarm E15 1163 0 Enable Alarm E16 1164 0 Enable Alarm E17 1165 0

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Table 36 (Continuation): Modbus memory map: programming variables (Table 22)

Enabling alarms

Configuration variable Address Valid data margin Default value

Output associated with Alarm E01 1170

0 (No),

1 (Alarm relay),

2 (Digital output 1)

2 (Digital output 2)

0

Output associated with Alarm E02 1171 0 Output associated with Alarm E03 1172 0 Output associated with Alarm E04 1173 0 Output associated with Alarm E05 1174 0 Output associated with Alarm E06 1175 0 Output associated with Alarm E07 1176 0 Output associated with Alarm E08 1177 0 Output associated with Alarm E09 1179 0 Output associated with Alarm E10 1179 0 Output associated with Alarm E11 117A 0 Output associated with Alarm E12 117B 0 Output associated with Alarm E13 117C 0 Output associated with Alarm E14 117D 0 Output associated with Alarm E15 117E 0 Output associated with Alarm E16 117F 0 Output associated with Alarm E17 1180 0

C.- Deleting parameters

Parameters can be deleted using Function 05: writing a relay.

Table 37:Modbus memory map: deleting parameters

Deleting parameters

Action Address Value to be sent

Deleting maximum values 200 FF Deleting minimum values 210 FF Deleting maximum and minimum values 220 FF Deleting energies 230 FF Deleting the stage search and stage enabling values of the leakage current

alarm

240 FF

Deleting the no. of operations of all the relays 250 FF Resetting alarms E14 and E15 260 FF Restoring the default conguration values 300 FF

4�9�4� EXAMPLE OF A MODBUS QUERY

Query: Instantaneous value of the L1 phase voltage

Address Function Initial log No� of logs CRC

0 A 04 0000 0002 70B0

Address: 0A, Peripheral number: 10 in decimal. Function: 04, Read function.

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Initial Log: 0000, log from which to start reading. No� of logs: 0002, number of logs to be read. CRC: 70B0, CRC character.

Response:

Address Function

No� of

Bytes

Log no� 1 Log No� 2 CRC

0 A 04 04 0000 084D 8621

Address: 0A, Responding peripheral number: 10 in decimal. Function: 04, Read function. No� of bytes: 04, No. of bytes received. Log: 0000084D, value of the L1 phase voltage: VL1 x 10 : 212.5V CRC: 8621, CRC Character.

4.10.- CPC-NET COMMUNICATIONS

Controller MASTER control VAR FAST series regulators are designed to control static capacitor banks where they can operate through optoMOS relay outputs or through communications. If communications are used, they must be connected to CPC3i-xRS zero switching control boards. The Controller MASTER control VAR FAST connection with the board will be made through the CPC-NET channel, in accordance with the connection table, Table 38. Also consult the terminal diagrams in Figure 2 and Figure 18.

Table 38: Table showing the CPC3i to Controller MASTER control VAR FAST connection�

CPC3i-xRS

Controller MASTER control

VAR FAST

Function

Terminal Name Terminal Name

A SH 44 S Communication cable screen B RS+ 42 A(+) Transmitter / Receiver +

C RS- 43 B (-) Transmitter / Receiver -

Each CPC3i board of a static capacitor bank must be congured with a different address (1 to

16) for each step, using a rotating ADJ switch with the CPC3i board. (Figure 18)

Figure 18:Terminals of the CPC3i-xRS board�

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4�10�1� MODBUS CONTROL FRAME

The Controller MASTER control VAR FAST controls the CPC3i boards using the MODBUS protocol. In particular, it sends a frame every 200 ms, using Function 15: N bits write. The message is a "broadcast" message, i.e., it will be read by all boards, in any address.

The format of the frame is as follows:

Address Function

Direction

of 1st bit

No� of bits No� of bytes Bits value CRC

00 0F 0064 0040 08 DD0 to DD7 XXXX

Address: 00, Broadcast, all the CPC3i boards receive all the frames. Function: 0F, Write function. Direction of 1st bit: 0064, the direction of the 1st bit in the CPC3i board is 0x0064. No� of bits: 0040, the frame has 64 bits. No� of bytes: 08, grouped into 8 byes. Bits value: The meaning of the 8 bytes is detailed in Table 39. CRC: XXXX, CRC character.

Table 39: Meaning of the 8 bytes, DD0 - DD7�

Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

DD0 - thy3_np2 thy2_np2 thy1_np2 - thy3_np1 thy2_np1 thy1_np1 DD1 - thy3_np4 thy2_np4 thy1_np4 - thy3_np3 thy2_np3 thy1_np3 DD2 - thy3_np6 thy2_np6 thy1_np6 - thy3_np5 thy2_np5 thy1_np5 DD3 - thy3_np8 thy2_np8 thy1_np8 - thy3_np7 thy2_np7 thy1_np7 DD4 - thy3_np10 thy2_np10 thy1_np10 - thy3_np9 thy2_np9 thy1_np9 DD5 - thy3_np12 thy2_np12 thy1_np12 - thy3_np11 thy2_np11 thy1_np11 DD6 - thy3_np14 thy2_np14 thy1_np14 - thy3_np13 thy2_np13 thy1_np13 DD7 - thy3_np16 thy2_np16 thy1_np16 - thy3_np15 thy2_np15 thy1_np15

thyn_npx means thyristor n of the block or peripheral x (This number of peripheral, x, is the

one programmed in the rotating selector for each board).

Note: The frame asks for the transmission of data to thyristors in up to 16 different steps, phase by phase. The Controller MASTER control VAR FAST regulator has a maximum of

12 outputs, so it does not use the last 4 steps of the frame.

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5�- CONFIGURATION

The various conguration parameters of the unit can be consulted and edited in the unit setup menu. The unit always keeps the capacitors disconnected (except in the Plug&Play function).

This status is identied by the symbol in the unit status area of the display (Figure 12).

To access the setup menu, press and hold the key (> 3 s).

The Password screen appears on the display. The password to be entered is a combination of

keys: . It is unique and cannot be congured.

If it is not entered correctly, the unit returns to the previous measurement screen. If it is entered correctly and capacitors are connected, the disconnection screen appears.

Disconnection screen: used for the unit to automatically disconnect all the stages before entering into conguration. While in this screen, the unit does not respond to the keys. The unit automatically exits this screen, and this can take a certain amount of time.

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5.1.- PLUG&PLAY

Press the key to switch from OFF to START

Press the key to start the Plug&Play function. Once started, the unit undertakes a process of connecting and disconnecting capacitors, measurement and calculation in order to obtain the following parameters of the capacitor bank:

 Connection type,  Phase,  Number of steps.  Program  C/K factor,

These parameters can also be congured manually from their respective screens.

When the Plug&Play process of the unit is active, this screen is displayed with the symbol blinking (it may take several minutes).

The capacitors are connected and disconnected during the process and this will be displayed on the screen.

Once the Plug&Play function of the unit ends, if no errors occurred during the process, the results are shown by the display on two screens, as follows:

The Plug&Play function assists the user during the configuration of the unit, since it automatically configures the basic parameters that are required for the unit to perform its regulation functions correctly.

To start the Plug&Play process, press the

. The process enters editing mode. It is identified by the symbol and the blinking of the digits of the display.

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Connection type: 3U�3C: 3 voltages and 3 currents� 3U�1C: 3 voltages and 1 current� 2U�1U: 2 voltages and 1 current� Phase Cos φ III

L: Inductive / C: capacitive +: consumed / -: generated

Press the key to switch to the next screen of results. Press the key to exit the results screen.

No� steps detected Program C/K factor Cos φ III

L: Inductive / C: capacitive +: consumed / -: generated

Press the key to switch to the previous screen of results. Press the key to exit the results screen.

If any errors occur during the execution of the Plug&Play function, the process will be aborted and the errors will be displayed on the screen. When a parameter has been calculated correctly before the error is detected, it will be displayed on the previously assigned line. The errors that can occur in the Plug&Play function are shown in Table 40.

Table 40: Code of Plug&Play errors�

Code Description

P00

There are three possible causes that can prevent the Plug&Play process from starting:

- Some stages are cancelled by the leakage current alarm.

- Some stages are forced in the conguration "5.12.- STATUS OF THE

STAGES”.

P01

Error when searching for the Connection Type. See connection diagrams.

P02

Phase not found. Cosine out of range (between 0.62 and 0.99 inductive).

P03

Unstable measurement. Load changes during the process.

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Table 40 (Continuation): Code of Plug&Play errors�

Code Description

P04

Error in the measurement of the largest capacitor.

P05

No capacitors found.

P06

Incorrect measurement of the number of capacitors.

P07

Incorrect measurement of the ratio of the rst capacitor.

P08

Possible error in the program calculated.

P09

C/K out of range.

In the case of the P00 error, i.e., when capacitors have been deactivated by a leakage current alarm or forced in the On/Off/Auto Conguration, the P&P function will not be started until the problem is resolved.

The Plug&Play function is designed to assist with the installation of the reactive energy compensation system, with the initial conguration of the regulator or when there are changes in the system (new regulator, new cabling, new stage, etc.). For this reason, it is necessary prior to the Plug&Play function to solve the possible problems with faulty capacitors by means of maintenance or replacement, as well as to congure all the stages in Auto mode, as they come by default.

Conditions for the correct operation of the Plug&Play function:

 The system should be maintained with an inductive cosine of 0.62 to 0.99 throughout the process.  The power in the system should be stable. Any major load changes (>10 % in less than 20 seconds) would result in an incorrect calculation of the capacitor power ratings.  There must be enough current in the system, above 100 mA AC at the regulator intake.  If the load is unbalanced, the correct operation of the Plug&Play function will depend on the phase to which the current transformer is connected.

I

Once the Plug&Play function is nished, the primary of the current transformer needs to be congured in order for the unit to measure the current and the powers correctly.

Press the key to move on to the next conguration point.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.2.- CURRENT TRANSFORMATION RATIO

The primary and secondary value of the current transformer is configured in this point.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Current primary: Maximum value: 9999. Minimum value: 1. Current secondary: Possible values: 1 or 5.

Maximum possible current ratio: 2500.

NB: The current ratio is the ratio between the current primary and secondary.

Maximum value of the current ratio x the voltage ratio: 200000.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.3.- TARGET COS φ

The cos φ makes it possible to define the power factor required for the installation. The Controller MASTER control VAR FAST will add the number of capacitors needed to adjust the value as close as possible to the objective value. Since the regulation is by stages, it does not perform any operations until the uncompensated demand is at least 70 % of the power of the smallest stage or the compensation surplus is 70 % of the power of the smallest stage.

Four target cosines can be congured, depending on the status of the digital inputs (See “4�7�-

INPUTS”) the unit allows one of the 4 programmed cosines.

For every cosine, you must program the value and state whether it is inductive L or capacitive

C.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Maximum value: 1.00. Minimum value: 0.80.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.4.- CONNECTION AND RECONNECTION TIME

In this point the action times of the device are configured in seconds:

Ton is the minimum time between the connection

and disconnection of a single stage (counted in number of network cycles).

TREC is the minimum time between the

disconnection and connection of a single stage (counted in number of network cycles).

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Ton:

Maximum value: 999. Minimum value: 2.

Trec:

Maximum value: 999. Minimum value: 0.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.5.- CONNECTION TYPE

In this point the connection type of the installation is selected, where:

3u3C: 3 voltages + neutral and 3 currents. 3u1C: 3 voltages + neutral and 1 current. 2u1C: 2 voltages and 1 current.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option. The key shows the previous option.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.6.- PHASE CONNECTION

This parameter is used to adapt the unit to the various options for connecting the power supply and measurement cables and the current transformers to the phases of the three-phase system. The connection screen changes according to the connection type programmed in the preceding point.

 Connection type 3u1C or 2u1C

If a connection with a single current has been selected (3u1C or 2u1C), one of the 6 possible

phases indicated in Table 41 are selected in this screen. The selection of one or another of the options must be made when inductive reactive power with an inductive cos φ of 0.6 to 1 is being consumed in the installation at the time of adjustment. The various options are tried until the screen shows a cos φ of 0.6 to 1 (the display of the cos φ is only informative, not editable).

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Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option. The key shows the previous option.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5�27�-

SIMULATION SCREEN”.

Table 41: Phase connection options�

Phases

V measurement phase CT connection phase

PH1

L1-L2-L3 L1

PH2

L1-L2-L3 L2

PH3

L1-L2-L3 L3

PH4

L1-L2-L3 L1 (inverted transformer)

PH5

L1-L2-L3 L2 (inverted transformer)

PH6

L1-L2-L3 L3 (inverted transformer)

 Connection type 3u3C

If the connection with three currents has been selected (3u3C), each current is associated with its

voltage and the direction of the current is indicated in this screen.

d: direct. i : reverse.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option. The key shows the previous option.

The key skips to the previous voltage.

The key skips to the next voltage.

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Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.7.- NO. OF STAGES

In this point the number of stages is selected, in other words the number of relay outputs that the unit will have. Depending on whether the model is Controller

MASTER control VAR FAST 6 or Controller MASTER control VAR FAST 12, it can be

configured with up to 6 or up to 12 outputs.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option. The key shows the previous option.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.8.- PROGRAM

The unit is made up of stages with different powers. The base power (value 1) will be that of the stage with the lowest power. The powers of all the other stages will depend on the power of the first stage.

Example:

Program 1�1�1�1, all the stages have the same power as the first one. Program 1�2�4�4, the second stage has twice the power and the next ones have four times the power of the first one. (See “4.1.4 Regulation program”)

When configuring the program, remember that the subsequent stage cannot be lower than the prior stage, and that the first stage is always 1.

Also program the system that controls the connection sequence of the different stages, where:

FCP, operation following the FCP (“4.1.3 FCP System (FAST Computerized Program)”)

TOTAL, total operation where all the steps are connected or disconnected at the same time, without following a sequence; This operation is faster than the FCP.

SIM, no operation, the unit stays in simulation mode

(1)

.

(1)

In SIM mode, the measurement screens simulate the outputs that the unit would connect or

disconnect, but it doesn't actually do so. To avoid confusion, on the measurement screens the name of the screen is switched with the literal Mode Sim.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Minimum value: 1.1.1.1 Maximum value: 1.9.9.9

Press the key to access the next programming step. If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.9.- C/K FACTOR

The C/K factor is adjusted according to the reactive current provided by the smallest stage, measured in the secondary of the current transformer (CT). The adjustment value of this factor therefore depends on the power of the smallest stage, the ratio of the CTs and the network voltage.

Table 42 and Table 43 provide the values to which the C/K should be adjusted for a 400 V AC

network between phases, various transformer ratios and powers of the smallest stage.

Table 42: C/K factor (table 1)�

CT Ratio

(Ip / Is)

Power of the smallest stage at 400 V (in kvar)

2�5 5�0 7�5 10�0 12�5 15�0 20�0 25�0 30�0 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 0.96 400/5 0.05 0.09 0.14 0.18 0.23 0.24 0.36 0.48 0.58 0.72 0.87 500/5 0.07 0.11 0.14 0.18 0.22 0.29 0.36 0.45 0.54 0.72 0.87 600/5 0.06 0.09 0.12 0.15 0.18 0.24 0.30 0.36 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 0.36 0.45 0.54 0.68 0.72 1000/5 0.05 0.07 0.09 0.11 0.14 0.18 0.22 0.29 0.36 0.43 0.54 0.57 1500/5 0.05 0.06 0.07 0.10 0.12 0.14 0.19 0.24 0.29 0.36 0.38 2000/5 0.05 0.07 0.09 0.11 0.14 0.18 0.22 0.27 0.28 2500/5 0.06 0.07 0.09 0.12 0.14 0.17 0.22 0.23 3000/5 0.05 0.06 0.07 0.10 0.12 0.14 0.18 0.19 4000/5 0.05 0.07 0.09 0.11 0.14 0.14

If the capacitor power reference of 440 V is used for a 400 V network voltage, the table is Table

43�

Table 43:C/K factor (table 2)�

CT Ratio

(Ip / Is)

Power of the smallest stage at 440 V (in kvar)

2�5 5�0 7�5 10�0 12�5 15�0 20�0 25�0 30�0 40�0 50�0 60�0 75�0 80�0

150/5 0.09 0.18 0.27 0.36 0.45 0.54 0.72 0.90

200/5 0.07 0.14 0.20 0.27 0.34 0.41 0.54 0.68 0.81

250/5 0.05 0.11 0.16 0.22 0.27 0.33 0.43 0.54 0.65 0.87

300/5 0.05 0.09 0.14 0.18 0.23 0.27 0.36 0.45 0.54 0.72 0.90

400/5 0.07 0.10 0.14 0.17 0.20 0.27 0.34 0.41 0.54 0.68 0.81

500/5 0.05 0.08 0.11 0.14 0.16 0.22 0.27 0.33 0.43 0.54 0.65 0.81 0.87

600/5 0.05 0.07 0.09 0.11 0.14 0.18 0.23 0.27 0.36 0.45 0.54 0.68 0.72

800/5 0.05 0.07 0.08 0.10 0.14 0.17 0.20 0.27 0.34 0.41 0.51 0.54 1000/5 0.04 0.05 0.07 0.08 0.11 0.14 0.16 0.22 0.27 0.33 0.41 0.43 1500/5 0.04 0.05 0.05 0.07 0.09 0.11 0.14 0.18 0.22 0.27 0.29 2000/5 0.04 0.05 0.07 0.08 0.11 0.14 0.16 0.20 0.22 2500/5 0.04 0.05 0.07 0.09 0.11 0.13 0.16 0.17 3000/5 0.04 0.05 0.05 0.07 0.09 0.11 0.14 0.14 4000/5 0.04 0.05 0.07 0.08 0.10 0.11

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For other voltages or conditions not included in the table, the value of C/K can be obtained by means of a simple calculation.

Calculating the C/K Factor

The equation for calculating the C/K factor is:

VK

Q

K

I

KC

C

⋅⋅==3

/

where Ic: is the smallest capacitor current. K: the current transformer transformation ratio.

To calculate Ic it is necessary to know the reactive power of the smallest capacitor Q and the network voltage V.

V.

Q

C

I3=

The transformation ratio K is calculated as:

sec

I

prim

IK /=

where Iprim : is the nominal current of the transformer primary. Isec: is the current of the transformer secondary.

Example: In a 400 V unit the smallest capacitor is of 60 kvar with a current transformer having

a ratio of 500/5, and the calculation would be made as follows:

Current of the smallest capacitor Ic:

AI

C

6,86

4003

60000

=

⋅

=

K Factor

1005/500 ==K

The C/K value is: 0.866.

If the power of 60 kvar is referenced at 440 V, it should be multiplied by Vgrid2 /440

2,

in which case the C/K value of the previous example would be 0.72.

If the C/K is congured lower than the actual value, connections and disconnections would occur continuously with few load variations (the system performs more operations than necessary).

If the C/K is congured higher, the regulator requires a higher demand for reactive power in order to switch and perform fewer operations.

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Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Minimum value: 0.02 Maximum value: 1.0

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.10.- ADVANCED SETUP

In this point it is possible to decide whether to access the advanced setup menu.

If the YES option is selected, the next programming step will be the voltage transformation ratio ("5.11.-

VOLTAGE TRANSFORMATION RATIO”)

When the No option is selected, the display returns to the Plug&Play configuration screen ("5.1.-

PLUG&PLAY”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option.

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The key shows the previous option.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.11.- VOLTAGE TRANSFORMATION RATIO

In this point the primary and secondary value of the voltage transformer can be configured.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Voltage primary: Maximum value: 99999. Minimum value: 1. Voltage secondary: Maximum value: 99999. Minimum value: 1.

Maximum possible voltage ratio: 1000.

NB: The voltage ratio is the ratio between the primary and secondary voltage.

Maximum value of the current ratio x the voltage ratio: 200000.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

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Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.12.- STATUS OF THE STAGES

This parameter is repeated for each of the 6 or 12 possible stages, offering the opportunity to force their status without paying attention to the operation performed by the actual unit.

In order to identify which of the 12 stages is being configured, the screen shows C1, C2, etc.

The configuration options for each stage are as follows:

 AUTO: The status of the stage depends on the operation performed by the unit.  On: Stage forced to ON, always connected.  OFF: Stage forced to OFF, always disconnected.

 On NC: Stage forced to ON, always connected but the system does not take into

account its connected power.

By default, all the stages are configured as AUTO.

On the measurement screens, the forced states of the stages are shown by activating the bottom line of the capacitor status bar. ( “4.4.1. STATUS OF THE CAPACITORS”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key shows the next option. The key shows the previous option.

The key skips to the previous stage.

The key skips to the next stage.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.13.- DISPLAY

In this point the lighting status of the screen and its language can be configured.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified

The following display configuration options are available:

 ON: the display light is always on.  OFF: the light is always off.

 AUTO: the light comes on when a key is pressed and switches off when no keys have

been pressed for 5 minutes.

The light level is also congured between 0 % and 100 % when the display is on.

The display language options are as follows:

 ESP: Spanish.  EnG: English.  FrA: French.

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous parameter.

The key skips to the next parameter.

Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.14.- ANALOGUE BAR

At this point the parameter to be displayed in the analogue bar is configured ("4.4.3. ANALOGUE

BAR”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The following display options are available for the analogue bar:

 POTC: the percentage of power connected to the capacitor bank relative to the total power.

 THdI: the Current THD of each phase.

 I: the current % of each one of the phases.  nO: no parameters are displayed.

The key shows the next option. The key shows the previous option.

Press to validate the data; the symbol disappears from the display.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.15.- FAN

In this point the activation of the relay output associated with the fan can be configured. It is possible to configure whether it is enabled

ON or not OFF, as well as the temperature above

which it is to be activated or deactivated. The unit has a hysteresis value of 5ºC when disconnecting the fan, in order to avoid continuous connections and disconnections.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous parameter.

The key skips to the next parameter.

Press to validate the data; the symbol disappears from the display.

Maximum value: 80ºC. Minimum value: 0ºC.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.16.- RS-485 COMMUNICATIONS

In this point the RS-485 communication parameters can be configured.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

The peripheral number assigned, from 1 to 254. The transmission speed, BaudRate: 9600 or 19200. The parity:

 none: no parity.  Even: even parity.

 Odd: odd parity

The number of stop bits: 1 or 2

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous digit or the previous parameter.

The key skips to the next digit or the next parameter.

Press to validate the data; the symbol disappears from the display.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.17.- CPC-NET COMMUNICATIONS

In this point the CPC-NET communication parameters can be configured.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

The transmission speed, BaudRate: 9600, 19200 or 38400. The parity:

 none: no parity.  Even: even parity.

 Odd: odd parity

The number of stop bits: 1 or 2

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous digit or the previous parameter.

The key skips to the next digit or the next parameter.

Press to validate the data; the symbol disappears from the display.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.18.- CLEAR

In this point it is possible to configure whether or not to delete (YES or No) the maximum and

minimum values, the energies and the number of connections of the stages.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The following parameters can be deleted:

 n: maximum and minimum values.  E: energies.

 C: number of connections of the stages.

The key shows the next option. The key shows the previous option.

The key skips to the previous parameter.

The key skips to the next parameter.

Press to validate the data; the symbol disappears from the display.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.19.- ENABLING ALARMS

This screen is repeated for every type of Error or Alarm (from E01 to E17); see Table 9� In it the

enabling or disabling of each error or alarm can be configured, as can whether or not to associate it with the activation of a relay or a digital output.

The key skips to the previous error.

The key skips to the next error.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

Enabling ON or disabling OFF the error or alarm.

Association with a relay or digital output alarm:

 reLay: the activation of the alarm is associated with the alarm relay.  d1: the activation of the alarm is associated with digital output 1.  d2: the activation of the alarm is associated with digital output 2.  no: not associated with any relay or digital output.

The key shows the next option. The key shows the previous option.

The key skips to the previous parameter.

The key skips to the next parameter.

Press to validate the data; the symbol disappears from the display.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.20.- VOLTAGE ALARMS

In this point the phase-phase voltage thresholds above which the overvoltage alarm (E05) and the no voltage alarm (E06) should be triggered can be

configured. The alarm must be enabled (“5.19.- ENABLING

ALARMS”).

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

In order to avoid possible false activations of said alarms, they have a predefined delay of 5 seconds.

The parameters to be configured are:

The value of the overvoltage alarm: HI� The value of the no voltage alarm: LO�

When any of the two alarms are triggered, the unit enters the Disconnection status and disconnects all the stages. The unit does not return to its normal operating status until the cause for the alarm disappears.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Overvoltage alarm: Maximum value: 99999 V Minimum value: 0 V No voltage alarm: Maximum value: 99999 V Minimum value: 0 V

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step. If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.21.- COS φ ALARM

In this point the limit for action of the cos φ alarm can be configured. It is activated every time the value of the cos φ drops below the configured value and the current is higher than programmed. The alarm must be enabled ( “5.19.- ENABLING

ALARMS”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

In order to avoid possible false activations of said alarms, they have a predefined delay of 15 seconds.

The parameters to be configured are:

The current value� The cos φ value and whether it is inductive L or capacitive C.

The key increases the digit value or shows the next option. The key decreases the digit value or shows the next option.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Current: Maximum value: 9999 A Minimum value: 0 A

cos φ: Maximum value: 1.00 Minimum value: 0.80

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.22.- VOLTAGE THD ALARM

In this point the thresholds above which the Voltage THD alarm (E08) is activated can be configured.

The alarm must be enabled ( “5.19.- ENABLING

ALARMS”)

The programmed values are useful for the 3 phases which the unit measures.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

 The Lo value : when the unit exceeds this value for 30 minutes, alarm E08 is triggered, and if alarm E11 is enabled, the Controller MASTER control VAR FAST unit enters No Connection status and activates alarm E11.

 The HI value: if the unit exceeds this value for 30 seconds, alarm E08 is triggered, and if alarm E12 is enabled, the Controller MASTER control VAR FAST unit enters Disconnection status and activates alarm E12.

If the unit falls back under the Lo value for 10 minutes, it deactivates the alarms and returns to the normal operating status.

In the No Connection status, the unit does not connect the stages, but also does not disconnect them if the operation requires it.

In the Disconnection status, it disconnects the stages and does not allow them to connect.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Lo Value and HI Value:

Maximum value: 99 % Minimum value: 1 %

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If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.23.- CURRENT x I THD ALARM

In this point the thresholds above which the alarm for the percentage of the value of the current x

ITHD (E09) is activated can be configured. The alarm must be enabled ( “5.19.- ENABLING

ALARMS”)

The programmed values are useful for the 3 phases which the unit measures.

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The value to be programmed in this alarm corresponds directly to the value of the total harmonic current to be considered as the setpoint. For example: If you want to program a Lo

setpoint value when exceeding a harmonic current of 200 A measured by the regulator, program 00200 directly in this section.

The parameters to be configured are:

 The Lo value: when the unit exceeds this value for 30 minutes, alarm E09 is triggered, and if alarm E11 is enabled, the Controller MASTER control VAR FAST unit enters No Connection status and activates alarm E11.

 The HI value: if the unit exceeds this value for 30 seconds, alarm E09 is triggered, and if alarm E12 is enabled, the Controller MASTER control VAR FAST unit enters the Disconnection status and activates alarm E12.

If the unit falls back under the Lo value for 10 minutes, it deactivates the alarms and returns to the normal operating status.

In the No Connection status, the unit does not connect the stages, but also does not disconnect them if the operation requires it.

In the Disconnection status, it disconnects all the stages and does not allow them to connect.

The key increases the digit value.

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The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Lo Value and HI Value:

Maximum value: 9999. Minimum value: 1

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

5.24.- TEMPERATURE ALARM

In this point the thresholds above which the temperature alarm (E10) is activated can be

configured. The alarm must be enabled ( “5.19.- ENABLING

ALARMS”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

 The Lo value : when the unit exceeds this value for 30 minutes, alarm E09 is triggered, and if alarm E11 is enabled, the Controller MASTER control VAR FAST unit enters No Connection status and activates alarm E11.

 The HI value: if the unit exceeds this value for 30 seconds, alarm E09 is triggered, and if alarm E12 is enabled, the Controller MASTER control VAR FAST unit enters Disconnection status and activates alarm E12.

If the unit falls back under the Lo value for 10 minutes, it deactivates the alarms and returns to the normal operating status.

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In the No Connection status, the unit does not connect the stages, but also does not disconnect them if the operation requires it.

In the Disconnection status, it disconnects all the stages and does not allow them to connect.

The key increases the digit value. The key decreases the digit value.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Lo Value and HI Value:

Maximum value: 80ºC. Minimum value: 0ºC

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step.

If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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5.25.- LEAKAGE CURRENT ALARM

In this point the parameters of the leakage current alarm can be configured.

Four alarms are linked to the leakage current: (E13, E14, E15 and E16).

The alarms must be enabled ( “5.19.- ENABLING

ALARMS”)

Press the key to enter editing mode. It is identified by the symbol and the blinking of the digits to be modified.

The parameters to be configured are:

 The alarm value: when the unit exceeds this value, alarm E13 is triggered.  Search for the responsible stage: if this parameter is programmed as ON, the

unit performs a process of connecting and disconnecting all the stages in order to find which ones are responsible for the leakage and, once they have been detected, cancels

them so that they cannot connect again. The unit triggers alarms E13 and E15 and the disabled stages are intermittently displayed on the screen.

If the unit has a Sim-type operation configured (see section “5.8.- PROGRAM”), the responsible stage's search process will not be done even if it is enabled to do so.  Enable stages: in this parameter, the stages that were disabled by this alarm are

enabled again (YES option).

The key increases the digit value and the next option. The key decreases the digit value and the previous option.

The key skips to the previous digit.

The key skips to the next digit.

Press to validate the data; the symbol disappears from the display.

Maximum value: 999 mA. Minimum value: 1 mA.

If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display ashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

Press the key to access the next programming step. If no keys are pressed for 5 minutes, the unit switches to the simulation screen, “5.27.-

SIMULATION SCREEN”.

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Lifasa MASTER control Var Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual