Kmb Novr 2400 How to use

KMB systems, s.r.o.

Dr. M. Horákové 559, 460 06 Liberec 7, Czech Republic

tel. 420 485 130 314, fax 420 482 736 896

email : k[email protected], internet : www.kmbsystems.eu

NOVAR 2400

Three-Phase Power Factor Contro ers

Trójfazowe regu atory współczynnika mocy

Třífázové regu átory ja ového výkonu

Short Manual / Instrukcja-wersja skrócona / Stručný návod k obsluze

Firmware v 3 0

This Short Manual contains Novar 2400 instruments typical installation basic information only. Full-scale Operating Manual containing detailed description of all features can

be free downloaded from manufacturer's website www.kmbsystems.eu .

Ta skrócona instrukcja obsługi regulatora NOVAR 2400 zawiera podstawowe informacje dla typowego podłączenia. Pełna instrukcja obsługi zawiera szczegółowy opis

wszystkich funkcji i można ją pobrać za darmo ze strony internetowej producenta www.kmbsystems.eu .

Tento stručný popis obsahuje pouze základní informace pro instalaci regulátorů NOVAR 2400 v jejich typickém zapojení. Podrobný návod k obsluze, obsahující kompletní

popis regulátorů, je volně ke stažení na internetu na stránkách výrobce www.kmb. cz .

rev.1.3, 6/2020

1. Insta ation

1.1 Physica

The instrument is built in a plastic box to be installed in a distribution board panel. The instrument’s position must be fixed with locks. Put the locks into square inserts placed

diagonally on the top and bottom of the box and tighten the screws to the panel.

Natural air circulation should be provided inside the distribution board cabinet, and in the instrument’s neighbourhood, especially underneath the instrument, no other

instrumentation that is source of heat should be installed.

1.2 Instrument Connection

1.2.1 Power Supp y

The instrument requires an AC or DC voltage power supply as specified in technical parameters. The supply inputs are separated from other circuits of the instrument.

It is necessary to connect an auxiliary supply voltage in the range as declared in technical specifications table to the terminals AV1 ( No. 9, L ) and AV2 ( No.10, N ). In case

of DC supply voltage the polarity of connection is generally free, but for maximum electromagnetic compatibility the grounded pole should be connected to the terminal AV2.

The supply voltage must be connected via a disconnecting device ( switch - see installation diagram ). It must be situated directly at the instrument and must be easily

accessible by the operator. The disconnecting device must be labelled as the disconnecting device of the equipment. A C-character double circuit breaker at the nominal

value of 1A may be used for the disconnecting device; however its function and position must be clearly marked (symbols „O" and „I" according to EN 61010 – 1). If one of the

supply signals is neutral wire N (or PEN) usually a single breaker in the line branch is sufficient. If a switch and fuse is used, the T1A (delayed) type is recommended.

Since the instrument’s inbuilt power supply is of pulse design, it draws a momentary peak current on powerup which is in order of magnitude of amperes. This fact needs to

be kept in mind when selecting the primary protection devices.

1.2.2 Measured Vo tages

Connect measured voltages in wye ( star ), delta or Aron configuration to terminals VOLTAGE / N (No. 11), U1 (No. 12), U2 (No. 13), and U3 (No. 14). The N terminal stays

free at delta and Aron connections. Phase rotating direction is free.

It is advisable to protect the supply leads by 1A safety fuses (F1A type, for example).

The type of voltage and currents connection must be entered in Installation parameters : the code shows the amount of connected phases, 3Y means three-phase connection

in wye ( star ), 3D in delta. 3A means Aron connection. For 1Y3 or 1D3 setup, the instrument operates in, so called, single phase mode – see full-scale Operating Manual.

Connection of Measured Voltages – VOLTAGE Group of Terminals

Terminal Type of connection

VOLTAGE wye-star (3Y) delta (3D) Aron (3A)

U1L1-phase voltage L1-phase voltage L1-phase voltage

U2L2-phase voltage L2-phase voltage L2-phase voltage

U3L3-phase voltage L3-phase voltage L3-phase voltage

UNneutral wire voltage - -

In the case of indirect connection via the measuring voltage transformers, it is necessary to enter this matter ( connection Mode ) and the values of the VT ratios during the

setup of the instrument.

The maximum cross section of the conductors to the terminal panels is 2.5 mm2.

1.2.3 Measured Currents

The instruments are designed for indirect current measurement via external CTs only. Proper current signal polarity (S1 & S2 terminals) must be observed. You can check the

polarity by the sign of phase active powers on the instrument display (in case of energy transfer direction is known, of course).

The CT-ratio must be set. in the Installation group of parameters (see below).

The I2 terminals stay free in case of the Aron (A) connection.

To get better precision when using overweighted CTs, you can apply more windings of measured wire through the transformer Then you must set the multiplier

parameter (see below) For standard connection with 1 winding, the multiplier must be set to 1

The current signals from 5A or 1A (or 0.1A for the „X/100mA“ models) instrument current transformers must be connected to the CURRENT connector terminal pairs

I11 – I12, I21 – I22, I31 – I32 (No. 1 ÷ 6).

A particular connector is provided with a screw lock to prevent an accidental pullout and possible unwanted disconnection of the current circuit.

A connection cable maximum cross section area is 2.5 mm2.

1.2.4 Outputs

Instruments can have up to 18 outputs. For models with more than 9 outputs, the outputs are arranged in two output groups. The groups are isolated from each other. Each

group has one common pole terminal C1, C2 ( No.15 and 25 ) and up to nine individual output terminals 1.1 through 1.9 ( No.16 ÷ 24 ) for group No. 1 and 2.1 through 2.9

( No.26 ÷ 34 ) for group No. 2.

Any combination of compensation capacitors or chokes (three-phase, two-phase or single -phase) can be connected to the instrument outputs via appropriate contactors.

If not of all outputs used, you can use upper three outputs for alarm signalling or for heating/cooling control ( see example wirings further below).

A connection cable maximum cross section area is 2.5 mm2.

1.2.5 Digita Input

Models with 7 and 16 outputs are equipped with the digital input. It can be used for the 2nd tariff control of power factor control process or for electricity meter tariff control.

Use terminals D1A, D1B (No.23 and 24) for the digital input connection – see wiring examples in appropriate chapter further below. The input is isolated from other instrument

circuitry.

To activate the output apply voltage of specified range to the terminals.

2. Commissioning

On connecting power supply, the instrument performs internal diagnostics, display test and then gradually shows screens with the instrument type and setting of basic

parameters : instrument model and firmware version number, VT-ratio (if indirect voltage connection is set), CT-ratio and nominal frequency fNOM and nominale voltage UNOM.

Then the instrument starts display actual measured values. Simultaneously, if the instrument has a communication line, it can be set and its measured values read via the

communication link using a PC.

As, because of the first installation, the instrument knows neither output types nor reactive power sizes of individual outputs, it gets into the standby mode, which is signalled

by flashing symbol .

If measuring voltage is present and measured current reaches at least minimum level, the instrument tries to start automatic output recognition ( AOR ) process that is

indicated with flashing symbol and the A O r message. As soon as it occurs, switch into instrument parameters with the key. When parameters are displayed, the

AOR-proces is cancelled and the controller stays in the standby mode until it returns back to measured quantities display – that occurs automatically after about 30 seconds if

no key is pressed.

At this moment, before we let the AOR-process running it is necessary to set so called Installation parameters, that are essential for proper operation of the instrument.

2.1 Measured E ectrica Quantities Insta ation Setup

For proper data evaluation it is necessary to set the Installation Setting group parameters, starting from parameter 71 up :

•CT- ratio ( p. 71 ). Can be set in form either …/ 5A or …/ 1A.

Furthermore, so called I-Mu tip ier can be set too. You can modify the CT- ratio with this parameter. For example, to get better precision when using

overweighted CTs, you can apply more windings of measured wire through the transformer. Then you must set the multiplier. For example, for 2 windings

applied, set the multiplier to 1/2 = 0.5 .

For standard connection with 1 winding, the multiplier must be set to 1.

•Connection Type ( p. 72 ) needs to be set according network configuration – wye ( or star, 3 Y ) delta ( 3 d , if neutral voltage potential not connected ),

or Aron ( 3 A ). For single-phase connection, set1 Y 3 or 1 d 3.

•Connection Mode ( parameter 74 ) determines if voltage signals are connected directly ( - - - ) or via voltage transformers. In such case the VT-ratio

must be set.

The VT-ratio must be set in form Nominal primary voltage / Nominal secondary voltage. For very high primary voltages the U-Mu tip ier must be used.

•Nominal frequency fNOM ( p. 75 ) must be set in compliance with the measurement network nominal frequency to either 50 or 60 Hz.

•Nomina Vo tage UNOM ( p. 75 ) and Nomina Power PNOM ( p. 76 ) : For the presentation of voltages and powers in percent of nominal value, voltage alarms

operation and other functions it is necessary to enter also the nominal ( primary ) voltage of the measured mains UNOM and nominal apparent three-phase

power (input power) of the connected load PNOM ( in units of kVA ). Although the correct setup of the UNOM and PNOM has no effect on measuring

operation of the instrument, it is strongly recommended to set at least the UNOM correctly.

The UNOM is displayed either as line-to-neutral or line-to-line form depending on the connection mode setup : “direct” or “via VT”, respectively.

Correct setting of the PNOM is not critical, it influences percentage representation of powers and currents and statistical processing of measuring in the

software only. If the PNOM of measured network node is not defined, we recommend to set its value, for example, to the nominal power of source transformer

or to the maximum supposed power estimated according current transformers ratio, etc.

2.1.1 Setup Examp e

Usually, it is only necessary to adjust the CT ratio. Next example shows how to do it :

Assuming that the ratio of used CTs is 750/1 A. First off all, it is necessary to switch display from measured data branch (the ULN screen on the example below) to the

parameter branch with the button. The branch is indicated with the symbol . Parameter 01 appears – target power factor & control bandwidth.

Now scroll down with the key to parameter 71, that is the CT ratio -its default value is 5/5 A. Enter editing mode by pressing and holding the until the value gets

flashing.

As soon as the value flashes, release the . Now you can change it. Increase primary value by pressing of the . If you keep it pressed two-speed autorepeat helps to

reach target value quickly. Then use multiple pressing of and for fine setup.

To change the secondary value, simply press the . The button serves as toggle switch between 5 and 1.

Target CT value is prepared now and we can leave the edit mode with (short) pressing the . The value is stored into the instrument memory and the flashing stops.

CT Ratio Change Procedure Example

Now return to so called main parameter branch (see description below) with next pressing the and then you can scroll to other parameters with and and edit

them in a similar way or you can return to the measured data branch with the .

The summary of all instrument parameters is stated in the table below. Their description is stated in the full-scale manual.

ong

mu ti

p e

mu ti

p e

2.2 PFC Setup

Another group of parameters serves for power factor control operation setup. The parameters can be divided into following subgroups :

•PFC control setup

•PFC output setup

•PFC alarm setup

2.2.1 PFC Contro Setup

The PFC control setup group comprises basic control parameters such like target power factor etc. They are numbered in range 01 ÷ 19.

But first at this phase, it is essential to set the parameter 11 - the power factor control strategy :

•3 1 p … (3p+1p) set this strategy if both three-phase and individual single phase power factors need to be controlled

•3 p … (3p) set this strategy if three-phase power factor control only is required

•1 p … (3*1p) set this strategy if all of single-phase power factors to be controlled individually without any relation to each other (3 separately running

single-phase control processes, usable for single phase outputs only)

Other parameters can be modified later. Finally, the last step is PFC output setup.

2.2.2 PFC Output Setup

The PFC output setup is determined by parameters 20 ÷ 36.

For the first commissioning, check and - if required - modify the discharge time for set 1 ( parameter 34 ). The time is displayed in format MM.SS ( minutes.seconds ). It is

necessary especially at high voltage compensation systems where discharge time in range of minutes must be set.

Optionally, you can set any of the highest three of outputs as alarm, fan control or heater control.

Now you can finally set output types and sizes. The most comfortable way to do this is by using Automatic Output Recognition (AOR) process : scroll to parameter 20 and

edit its value to R u n. After return to measured quantities display - either manually with the key or automatically after about 30 seconds without any key manipulation –

the AOR process is started.

If load is low or disconnected at all, the default undercurrent ( I< ) alarm ( No 04, parameter 43 ) actuation forces the controller into the standby state In such case

the AOR process cannot be started Therefore, it is necessary to switch this alarm actuation temporarily off ( and to return it back after the AOR-process passes)

2.2.2.1 AOR Process

After being started, the AOR screen appears : the A O r message in the first line and the symbol flash.

First of all, all of control outputs (i.e. excluding the fixed ones and optional alarm/fan/heating ones ) are disconnected, step by step.

Then the instrument waits until discharge time of the outputs just disconnected expires - such not-discharged outputs are identified with flashing output symbol. That means

that the instrument waits till the outputs are ready to use.

AOR-Process Step 1 1 Recognition Example

→→

After all of the outputs discharged, the instrument starts to switch the outputs step by step. The number of a step is displayed in the second line and appropriate output

is switched on for a short time. After the step is switched off, its type and size is displayed :

•three-phase reactive power of 7.38 kvar, capacitive, in the third line

•in the second line (behind the output number) type of the capacitor – three-phase type (C123) because of all of three bars displayed behind the step number

If a step power was detected as zero, either the output is not used (nothing connected to it) or the step power is too small to be recognized automatically.

After the process passes, new recognized output data are stored into the instrument's memory.

Then, in case that :

•at least one valid output ( capacitor or choke ) was found

•the instrument is not switched into the manual mode

•no alarm action is active

•voltage and current higher than measurable minimums

the instrument starts to control power factor to preset value.

If the undercurrent ( I< ) alarm ( No 04, parameter 43 ) was disabled for the AOR-process to be able to pass without any load in the network do not forget to

reenable it back !!!

Detailed AOR process explanation and all of the instrument functions' description can be found at the full-scale operating manual.

2.2.3 PFC Contro & PFC A arms Setup

Finally, the PFC control parameters (1 ÷ 19) and the PFC alarms parameters (40 ÷ 56) can be modified, if necessary.

Detailed description of all of the parameters can be found in the full-scale operating manual.

2.3 Parameter Checking & Editing

To check or edit the parameters, press the key. As default, parameter group 01 is displayed and symbol (wrench) indicates, that setup data are displayed now.

The parameters are arranged in groups, numbered from 00 up. The number of group is displayed in the first line in format - P. n n (with

preceding dash). You can browse through the parameter groups with the or keys.

If one parameter only in the group, its value is usually in the bottom line as shown at the example (nominal power 400 kVA).

If two parameters in the group, usually the first of them is displayed in the 2nd line and the second in the 3rd line ( nominal frequency 50 Hz

and nominal voltage 230 V).

To edit a particular parameter, scroll to its group. Then press and hold the until the value gets flashing. Now release the key and set

target value with the or , or the key for some of parameters. You can use autorepeat function by keeping one of the arrow keys

pressed too. Finally, press the and the value is stored into the memory.

If more parameters in the group, the first one is chosen when entering editing mode for the first time. If you want to modify the second

parameter only, simply cancel editing of the first parameter without any change and reenter the editing again – now the second parameter is

chosen.

To return back to measured values display, simply press the key. Such return can occur automatically too when no manipulation with the buttons for about 30 seconds.

2.3.1 Side Branch Parameters

The parameter groups are organized by ordinal number in the main branch. The main branch is identified with a dash in the 1st line, preceeding the parameter group number –

for example - P 2 5 .

Some of the parameter groups (No. 25÷28, alarm parameter groups No. 40÷56, etc.) are located on side branches for easier navigation. You can switch to a side branch with

certain parameters by pressing the key and switch back to the main branch in the same way. Unlike the main branch, when the side branch is selected the dash is

displayed in the 2nd line.

For example: in the main branch, while showing parameter group 25 (section powers), you will see :

- P 2 5 - parameter group number with the preceeding dash indicating the main branch

1 . 1 - number of the 1st output section

2 4 . 5 - section 1.1 power : three phase capacitor of 24.5 kvars

Pressing the key you switch to the side branch and the screen changes as follows :

P 2 5 - parameter group number without the dash

-1 . 1 - number of the output with the preceeding dash indicating the side branch

Now you can move up and down in the side branch with with the or keys through all sections’ values.

Pressing the again returns display to the main branch (the dash returns to the 1st line).

You can find overview of all the instrument parameters in tables below.

Parameter List

PFC - Contro

# parameter group range default comment

01 target PF & bandwidth, tariff 1

line 2 : target PF (cos/tan/φ)

line 3 : control bandwidth - 0.80 ÷ 0.80 (cos)

0.000 ÷ 0.040 (cos)

(cos)

0.98

0.010

Other available formats : „tan“, „φ“.

Toggled with the key.

02 control time UC/OC, tariff 1

line 2 : c. time at undercompensation (UC)

line 3 : c. time at overcompensation (OC)

5 sec ÷ 20 min

3 min

30 sec

No “L”: control time reduction by

squared proportion

“L”: linear c. time reduction

03 offset power, tariff 1 any 0 Value corresponds to UNOM specified.

Displayed when offset control set only.

05 tariff 2 control & actual tariff

line 2 : actual tariff (state)

line 3 : tariff 2 control t=1 / t=2

OFF / dig.input (InP) / power (P) OFF

Actual tariff is not any presetable

parameter; it indicates actual tariff state

only

06 target PF & bandwidth, tariff 2

line 2 : target PF (cos/tan/φ)

line 3 : control bandwidth

- 0.80 ÷ 0.80 (cos)

0.000 ÷ 0.040 (cos)

(cos)

0.98

0.010

Other available formats : „tan“, „φ“.

Toggled with the key.

07 control time UC/OC, tariff 2

line 2 : c. time at undercompensation (UC)

line 3 : c. time at overcompensation (OC) 5 sec ÷ 20 min

5 sec ÷ 20 min 3 min

30 sec

No “L”: control time reduction by

squared proportion

“L”: linear c. time reduction

08 offset power, tariff 2 any 0 Value corresponds to UNOM specified.

Displayed when offset control set only.

10 tariff 2 control power 0 ÷ 120 % PNOM 0 Displayed when tariff 2 control set to

power only.

11 control strategy 3p 1p (31P) / 3p (3P) /

3*1p (1P) 3p 1p

(31P)

12 choke control & choke control limit PF

line 2 : choke control

line 3 : choke control limit power factor

OFF / mixed (M) / non-mixed (nM)

- 0.80 ÷ 0.80 (cos) OFF

1.0

Choke control limit power factor

displayed when choke control set to

mixed only.

13 offset control OFF / On OFF

PFC - Outputs

# parameter group range default comment

20 automatic output recognizer (AOR) starting OFF / auto (A) auto Furthermore, the AOR can be launched

manually with the „run“ option.

21 manual filler; 3 subparameters :

1. min. output type & nom. power (OMIN)

2. output ratio

3. count of outputs

any

11111 ÷ 12488

0 ÷ 18

1 kvar

11111

25 output type & nominal power,

No.1.1 ÷ 2.9 in subparameters

any 0 Value corresponds to UNOM specified.

26 output control state

No.1.1 ÷ 2.9 in subparameters

control / fixed-on / fixed-off /

fan / heating / alarm-on / alarm-

off

control Fan, heating and alarm options available

at three upper outputs only

27 output switching operations count

No.1.1 ÷ 2.9 in subparameters - - Not a presetable parameter. Can be

cleared only.

28 output switch-on time [hours]

No.1.1 ÷ 2.9 in subparameters - - Not a presetable parameter. Can be

cleared only.

29 the ultimate output fan/heater temperature thresholds

line 2 : “on” temperature threshold [°C]

line 3 : “off” temperature threshold [°C]

fan : 10 ÷ 60 °C

heater : -30 ÷ -10 °C

fan: 40°C

heat.: -5°C

Skipped if appropriate output control

state different from fan / heater.

30 the penultimate output fan/heater temperature thresholds

line 2 : “on” temperature threshold [°C]

line 3 : “off” temperature threshold [°C] fan : 10 ÷ 60 °C

heater : -30 ÷ -10 °C fan: 40°C

heat.: -5°C

Skipped if appropriate output control

state different from fan / heater.

31 the antepenultimate output fan/heater temperature thresholds

line 2 : “on” temperature threshold [°C]

line 3 : “off” temperature threshold [°C]

fan : 10 ÷ 60 °C

heater : -30 ÷ -10 °C

fan: 40°C

heat.: -5°C

Skipped if appropriate output control

state different from fan / heater.

33 output set 2 OFF / 1.2 ÷ 2.9 OFF

34 set1 (& set2) discharge time

line 2 : set1 discharge time

line 3 : set2 discharge time

5 sec ÷ 20 min 20 sec If the output set2 zero the set1

discharge time displayed only.

35 switching mode intelligent / circular / linear int.

PFC - A arms

# alarm No.,

mark

alarm event control

quantity / event

limit setting range activation (/ deact.)

delay

default v.

Indication, Actuation

notes

40 01

U<< voltage loss ULN (1 period) 20% of UNOM (fixed) 0.02 sec / 5 sec (fixed) -

I A simultaneous

disconnection

41 02

U< undervoltage ULN / ULNAVG 20÷100% of UNOM 1 sec ÷ 20 min ULN / 70 % / 1 min

42 03

U> overvoltage ULN / ULNAVG 100÷200% of UNOM 1 sec ÷ 20 min ULN / 130 % / 1min

43 04

I< undercurrent I / IAVG 0÷25.0 % of In *) 1 sec ÷ 20 min I / 0.1 % / 5 sec

I Afixed sections

not affected by

actuation

44 05

I> overcurrent I / IAVG 100÷140 % of In *) 1 sec ÷ 20 min I / 120 % / 1 min indication only

45 06

CHL> CHL limit exceeded CHL / CHLAVG 80÷300 % 1 sec ÷ 20 min CHL / 133 % / 1min

46 07

THDU> THDU limit exceeded THDU / THDUAVG 1÷300 % 1 sec ÷ 20 min THDU / 10 % / 1min

47 08

THDI> THDI limit exceeded THDI / THDIAVG 1÷300 % 1 sec ÷ 20 min THDI / 20 % / 1min

48 09

P>< P limit exceeded / drop Pfh / PfhAVG 0÷99 % 1 sec ÷ 20 min 0 % / 5 sec fixed sections

not affected by

actuation

49 10

PF>< PF control failure - PF control

deviation out of contr. b'width ΔQfh / ΔQfhAVG - 1 sec ÷ 20 min ΔQfhAVG / 5 min

I indication only

50 11

NS> number of switching

operations exceeded number of switch.

op’s 1÷9999 thousands immediately (0 sec) 100

I indication only

51 12

OE output error section failure 0÷99 % of reading 3 ÷ 15 occurr'ces 20 %; 10

I A

52,

53 13 : T1><

14 : T2>< temperature exceeded / drop Ti (internal) -40 ÷ 60 °C 1 sec ÷ 20 min > 45 °C / 1 s

> 35 °C / 1 s

54 15

EXT external alarm active digital input state - 0.02 sec / 5 sec (fixed) - simultaneous

disconnection

55 16

OoC out of control PF control process

not running - 1sec ÷ 20min

/ immediately 15 min indication only

56 17

RCF remote control failure remote control

process state - 1sec ÷ 20min

/ immediately 1 min indication only

57 18

PF> PF control failure -

overcompensated PFfh / PFfhAVG cos :

0.00(C/L) ÷ 1.00 1 sec ÷ 20min PFfh / 1.00 / 1 min indication only

58 19

PF< PF control failure -

undercompensated PFfh / PFfhAVG cos :

0.00(C/L) ÷ 1.00 1 sec ÷ 20 min PFfh / 0.95L / 1 min indication only

Notes : *) In ... CT secondary rated current; 5A or 1A according the CT-ratio setup

Insta ation

# parameter group range default comment

00 lock LOC / OPN OPN see Instrument Locking / Unlocking

71 CT – ratio, multiplier

screen 1 : row 2 : nominal primary current

row 3 : nom. secondary current

(for models “X/100mA”,“X/333mV” fixed)

screen 2 : MUL – current multiplier

primary : 1A ÷ 10 kA

sec. : 5A / 1A (0.1A)

(0.1 A, 0.333 V)

0.001 ÷ 999

5 / 5 A

secondary current selection with the

key

parameter placed in side branch

if the current multiplier different from 1

the ▲/ ▼flashes

72 connection type

row 2 : U1-angle (for 1Y3/1D3 only)

row 3 : connection type

3Y / 3D / 3A / 1Y3 / 1D3 3Y

74 conn. mode: direct (---) or VT–ratio, mult.

screen 1 : row 2 : primary U [ kV ]

row 3 : secondary U [ kV ]

screen 2 : MUL – voltage multiplier

0.001 ÷ 65 kV

0.001 ÷ 0.999 kV

0.001 ÷ 999

direct

(- - -)

parameters placed in side branch

if the voltage multiplier different from

1 the ▲/ ▼flashes

75 fNOM, UNOM

row 2 : fNOM [ Hz ]

row 3 : UNOM [ V / kV ] 50 / 60 Hz

50 V ÷ 1MV 50

230

UNOM specification depending on

connection mode :

- direct : line-to-neutral

- via VT : line-to-line

76 ΣPNOM [ kVA / MVA ] 1 kVA ÷ 999 MVA -

77 averaging period

row 2 : for U/I group

row 3 : for P/Q/S group

0.01 ÷ 60

(1 sec÷ 60 mins) 1 min

15 min

floating window type averaging

method applied as default

78 avg period for ΣMD, El-meter d. mode

line 2 : averaging period for ΣMD

line 3 : Electricity meter display mode 0.01 ÷ 60

“4E MD” / “8E” 15 min

“4E MD”

floating window type averaging

method applied

79 fund. harmonic PF display format cos / tan / fi cos

80 backlight AUT / ON ON AUT-mode : the backlight is switched

off automatically after app. 5 mins if

no key is pressed

81 CT-test launch --- / RUN --- Not a real parameter !

Can be used for the CT-test

launching only. See the CT-test

description.

85 communication interface 1 (and 2, opt.)

for RS-485 / M-Bus :

screen 1: row 2 : address

row 3 : rate [ kBd ]

screen 2: Prt (protocol) – databits & parity

for Ethernet:

screen 1 : DHCP

screen 2÷5 : IP1÷ IP4 (IP)

screen 6÷9 : MA1÷ MA4 (Subnet Mask)

screen 10÷13 : Gt1÷ Gt4 (Gateway)

1 ÷ 255

2.4 ÷ 460

8 / 9-n / 9-E / 9-0

ON / OFF

0 ÷ 255

9.6

OFF

10.0.0.1

255.255.255.0

10.0.0.138

parameters placed in side branch

89 instrument status (read only)

row 2 : failure specification

row 3 : serial no. & instr. version (scroll)

0 ÷ 255

r. 2 : 0 = failure-free

r. 3 : S...serial no.

F... firmware version

b...bootloader version

H...hardware version

3. Maintenance, Service

The NOVAR 2400 controllers do not require any maintenance in their operation. For reliable operation it is only necessary to meet the operating conditions specified and not

expose the instrument to violent handling and contact with water or chemicals which could cause mechanical damage.

In the case of failure or a breakdown of the product, you should send it to the supplier for repair. The product must be in proper packaging to prevent damage during transit. A

description of the problem or its symptoms must be delivered together with the product.

If a warranty repair is claimed, the warranty certificate must be sent in. In case of an out-of-warranty repair you have to enclose an order for the repair.