Datakom DKG-108 Manuel utilisateur

DKG-108 User Manual V-1.0(10.08.2011)

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DKG-108 POWER

FACTOR CONTROLLER

8 BANKS, HARMONIC

DISTORTION DISPLAY

Small size

Cost effective and high performance

True RMS AC measurements,high accuracy

4096 samples/sec measurement rate

Easy commissioningthrough automatic setup

Automatic CT reverse polarity correction

Automatic detection of faulty banks

Electronic/mechanical power counter selection

Per-phase regulation capability

Supports both single-phase and triphasebanks

Connection/disconnection of all banks at once

Adjustable delay timers

Dynamic update of capacitor ratings

Equal aging of contactors

Per phase and total V-A-kW-kVAr-cosdisplay

THD display of all V-I parameters (31 harmonic)

Generator phase input

VT ratio for MV applications

kW and kVAr tick output possibility

Front panel programmable

Low panel depth, easy installation

Wide temperature range

Sealed front panel (IP54)

Plug-in connection system for easy replacement

DFC-0108 is a high technology controller

allowing the power factor of the installation to

be stabilized to the requested value by

switching capacitor banks through

contactors. The unit allows also the

visualization of various AC parameters like a

network analyzer.

The unit makes harmonic analysis up to the

31th component. The THD values of all

voltages and currents are available.

Stepping algorithms are selectable between

various types. Thanks to the automatic setup

function, the commissioning and

programming are made easy.

The unit fits into a standard 96x96mm panel

opening.

DESCRIPTION

FEATURES

DKG-108 User Manual V-1.0(10.08.2011)

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Electrical equipment should be installed only by

qualified specialist. No responsibility is assured by the

manufacturer or any of its subsidiaries for any

consequences resulting from the non-compliance to

these instructions.

Check the unit for cracks and damages due to

transportation. Do not install damaged equipment.

Do not open the unit. There is no serviceable parts

inside.

Fuses must be connected to the phase voltage

inputs, in close proximity of the unit.

Fuses must be of fast type (FF) with a maximum

rating of 6A.

Disconnect all power before working on equipment.

When the unit is connected to the network do not

touch terminals.

Short circuit terminals of unused current

transformers.

Any electrical parameter applied to the device must

be in the range specified in the user manual.

Do not try to clean the device with solvent or the like.

Only clean with a dump cloth.

Verify correct terminal connections before applying

power.

Only for front panel mounting.

SAFETY NOTICE

Failure to follow below instructions will result in

death or serious injury

DKG-108 User Manual V-1.0(10.08.2011)

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Section

1. INSTALLATION

1.1. FRONT / REAR PANELS

1.2. MECHANICAL INSTALLATION

1.3. ELECTRICAL INSTALLATION

1.4. CONNECTION DIAGRAM

2. AUTOMATIC SETUP

3. PUSHBUTTON FUNCTIONS

4. DISPLAYS

4.1. DISPLAYS IN AUTO AND MANUAL MODES

4.2. TEST MODE, MANUAL STEP CONTROL

5. STEPPING PROGRAMS

5.1. COMPARAISON OF LEGACY AND OPTIMAL PROGRAMS

6. ALARMS

7. PROGRAMMING

7.1. ENTERING EXITING PROGRAMMING

7.2. LAMP TEST

7.3. MODIFYING PROGRAM PARAMETERS

7.4. PROGRAM PARAMETER LIST

8. TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

Current Transformers must be used for current

measurement.

No direct connection allowed.

DKG-108 User Manual V-1.0(10.08.2011)

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Before installation:

Read the user manual carefully, determine the correct connection diagram.

Remove all connectors and mounting brackets from the unit, then pass the unit

through the mounting opening.

Put mounting brackets and tighten. Do not tighten too much, this can brake the

enclosure.Self mating brackets do not require tightening.

Make electrical connections with plugs removed from sockets, then place plugs to

their sockets.

Make sure that relay outputs are not overloaded. If necessary use extra contactors.

Below conditions may damage the device:

Incorrect connections.

Incorrect power supply voltage.

Voltage at measuring terminals beyond specified range.

Current at measuring terminals beyond specified range.

Overload or short circuit at relay outputs

Below conditions may cause abnormal operation:

Power supply voltage below minimum acceptable level.

Power supply frequency out of specified limits

Current transformers not matching related phases.

Current transformer polarity incorrect. (if automatic correction is not applied).

Inadequate on-delay setting

Inadequate off-delay setting.

Current Transformers must be used for current

measurement.

No direct connection allowed.

1. INSTALLATION

DKG-108 User Manual V-1.0(10.08.2011)

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Panel Cutout Required Panel Depth

1.2 MECHANICAL INSTALLATION

1.1 FRONT / REAR PANELS

DKG-108 User Manual V-1.0(10.08.2011)

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Although the unit is protected against electromagnetic disturbance, excessive disturbance

can affect the operation, measurement precision and data communication quality.

ALWAYS remove plug connectors when inserting wires with a screwdriver.

Fuses must be connected to phase voltage inputs, in close proximity of the unit.

Fuses must be of fast type (FF) with a maximum rating of 6A.

Use cables of appropriate temperature range.

Use adequate cable section, at least 0.75mm2 (AWG18).

For current transformer inputs, use at least 1.5mm2section (AWG15) cable.

The current transformer cable length should not exceed 1.5 meters. If longer

cable is used, increase the cable section proportionally.

Follow national rules for electrical installation.

Current transformers must have 5A output.

Make sure that relay outputs are not overloaded.

If necessary use extra contactors.

Current Transformers must be used for current

measurement.

No direct connection allowed.

Do not install the unit close to high electromagnetic

noise emitting devices like contactors, high current

busbars, switchmode power supplies and the like.

1.3 ELECTRICAL INSTALLATION

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1.4 CONNECTION DIAGRAM

DKG-108 User Manual V-1.0(10.08.2011)

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In automatic setup mode, the unit :

-automatically detects and corrects reverse connected current transformers.

-automatically measures and memorizes capacitor bank ratings.

It is preferable that there should be no other load on the

capacitor panel. However with constant or slow

changing loads the unit is able to perform auto setup.

If there are fast changing loads, the unit may be unable

to correct CT polarity errors or may read incorrect bank

capacitor ratings. In such cases, auto setup should be

repeated and capacitor ratings should be

checked/corrected through PROGRAMMING menu.

For a successful auto setup, current transformers must

be connected to correct CT inputs.

The connection polarity is not important.

Otherwise the unit will give ALARM_03 and will not

perform automatic setup.

For a successful auto setup, STEP_1 capacitors must be

3 phased.

Otherwise the unit cannot detect connection errors,

gives ALARM_02 and will not perform automatic

setup.

For a successful auto setup, voltage connections must

be 3 phased.

Otherwise the unit will give ALARM_01 and will not

perform automatic setup.

2. AUTOMATIC SETUP

DKG-108 User Manual V-1.0(10.08.2011)

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STEP BY STEP AUTO SETUP

PUSHBUTTON

OPERATION

DISPLAY

In order to enter the auto setup mode, power-

up the unit with MENU button pressed and

hold the button pressed for 10 seconds. The

display will show ctrFand the unit will ask the

current transformer primary rating.

Press again the MENU button. The display will

show the CT primary rating.

Adjust required CT primary rating with arrow

buttons.

For fast increase/decrease please hold the

button pressed.

Press again the MENU button. The display will

show MtErand the unit will ask the power

meter type.

Press again the MENU button. The display will

show the power meter type.

Adjust required power meter type with arrow

buttons.

0 analog power meter

1 digital power meter

Press again the MENU button. The display will

show LErnand the unit will ask to enter the

quick commissioning mode.

Press again the MENU button. The display will

show 0.

Set the parameter to 1 with arrow buttons.

Press again the MENU button. The display will

show the total kVArvalue.

The unit will check CT connections, correct if

necessary, then activate all banks (one by one)

in order to determine capacitor ratings.

When auto setup is finished successfully the

unit will revert to normal operation.

DKG-108 User Manual V-1.0(10.08.2011)

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Access to programming and measurement displays is achieved through 3 pushbuttons on

the front panel.

PUSHBUTTON

FUNCTION

In AUTO mode, acknowledges the displayed alarm.

If the same alarm occurs again, it will not appear on the display.

HELD PRESSED DURING 5 SEC:

Resets all alarms and the alarm led.

Any new coming alarm will appear on the display.

HELD PRESSED DURING 10 SEC AT POWER-ON:

The unit enters automatic setup mode.

Switch to upper display or previous parameter

or increase related value (programming mode)

Switch to lower display or next parameter

or decrease related value (programming mode)

HELD PRESSED DURING 5 SEC:

Switches between AUTO and MANUAL modes.In MANUAL mode

the stepping is disabled. From the MANUAL mode TEST mode

can be selected in order to test each step manually.

HELD PRESSED DURING 5 SEC IN MANUAL MODE:

Switches between MANUAL and TEST modes. In TEST mode, all

steps may be turned on and off manually. For more detailed

information please check chapter 4.2.

HELD PRESSED TOGETHER DURING 5 SEC:

Enters or exits programming mode.

NO PUSHBUTTON PRESSED DURING 15 MINUTES:

Returns to the programmed main display screen.

3. PUSHBUTTON FUNCTIONS

Table des matières

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