CIRCUTOR CEM-C30 User Manual

Multifunctional energy meter

CEM-C30

CEM-C30 MID

INSTRUCTION MANUAL

(M017B01-03-15A)

CEM-C30

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Instruction Manual

CEM-C30

SAFETY PRECAUTIONS

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

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.

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.

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

DISCLAIMER

CIRCUTOR, SA reserves the right to make modi cations to the device or the unit speci ca-

tions set out in this instruction manual without prior notice.

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

www.circutor.com

Instruction Manual

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CEM-C30

REVISION LOG

Table 1: Revision log�

Date Revision Description

07/14 M017B01-03-14A Initial Version

11/14 M017B01-03-14B

06/15 M017B01-03-15A

Changes in the following sections:

4.6. - 4.6

Changes in the following sections:

2 - 3.5 - 4.4.1. - 4.4.2. - 4.5. - 4.6. - 4.7. - 5

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CEM-C30

1�- VERIFICATION UPON RECEPTION

Check the following points upon receiving the unit:

a) The unit meets the specications described in your order. b) The unit has not suffered any damage during transport. c) Perform an external visual inspection of the unit prior to switching it on. d) Check that it has been delivered with the following:

- An installation guide.

If any problem is noticed upon reception, immediately contact the transport company and/or CIRCUTOR's after-sales service.

2�- PRODUCT DESCRIPTION

The CEM-C30 static three-phase energy meter measures class B active energy (EN50470) and (optional) class 2 reactive energy (IEC 62053-23), with optional optical communications for expansion with other modules installed on a DIN rail with a service port. The current is measured with the transformer.

The unit features:

- 2 buttons that allow you to browse the different screens and program the unit.

- 2 Verication LEDs.

- LCD display, displays all parameters,

- 2 connection seals,

- 2 terminal covers, to cover the top of the terminal box and the xing screws.

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Instruction Manual

CEM-C30

The CEM-C30 is offered in different versions; Table 2 shows all of the possible options of the unit.

Table 2: Options of the CEM-C30�

Options CEM-C30 Code

Connection mode 4 wires 4

Accuracy Class B Active / Does not measure reactive energy 10

Class B Active/ Class 2.0 Reactive energy 12

Measurement voltage 3x57/100 ... 3x230/400 V

V

3x57/100 V

3x63.5/110 V

3x127/220 V

3x230/400 V

Current measurement Transformer 5(10) A T5

Transformer 5(6) A T6

Frequency 50 Hz

60 Hz

Automatic (50/60Hz) C

Communications Without communications 0

Side optical service port 1

Expansion Without inputs/outputs 0

Input/Output (Optocoupler) 1

Model Box for assembly on DIN rail E

Number of quadrants 2 Quadrants 0

4 Quadrants 1 Storage in both directions 2

Additional features No special features 0

Backlight Backlight 8

L

M

N

Q

A

B

Example: The code 412VT6A10E10 is an energy meter for assembly on a DIN rail, class B (active) and class 2 (reactive); with 4-wire connection and 4-quadrant measurement; with

3x127/220 ... 3x230/400 measurement voltages and 5(65) A current measurements at 50Hz; with

service optical communications; with optoisolated impulse output and no additional features.

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CEM-C30

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 necessary personal protective equipment, and pay attention to the various warnings indicated in this instruction manual.

The CEM-C30 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 observe the warnings and/or recommendations set out in this manual, nor for damage resulting from the use of non-original products or accessories or those 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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CEM-C30

3.2.- INSTALLATION

On the side of the unit are all of the indications adjusted to the CEI 62052-11 standard.

The unit is installed on a DIN rail. All connections are located inside the electric panel.

Terminals, opening covers 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.

3.3.- UNIT TERMINALS

Table 3:List of CEM-C30 terminals�

Unit terminals

1 : S1, Current input L1 8 : L3, Voltage input L3

2 : L1, Voltage input L1 9 : S2, Current output L3

3 : S2, Current output L1 11 : N, Neutral connection

4 : S1, Current input L2 13 : Auxiliary Power Supply

5 : L2, Voltage input L2 14 : Auxiliary Power Supply

6 : S2, Current output L2 21 : Impulse output (Collector)

7 : S1, Current input L3 22 : Impulse output (Emitter)

Instruction Manual

Figure 1:Terminals of the CEM-C30�

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3.4.- CONNECTION DIAGRAM

CEM-C30

Power

Supply

LOAD

S2 S1

P1

P2

P1

S2 S1

P2

S2 S1

P2

P1

Figure 2: Connection diagram, CEM-C30�

L1

L2

L3

N

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CEM-C30

3.5.- CONNECTIONS

The CEM-C30 has terminal covers to cover the top of the terminal box and the xing screws (Figure 3).

Figure 3: Terminal covers of the CEM-C30�

The xing screws are of the mixed type, allowing the use of PZ2 and at head screwdrivers.

Table 4:CEM-C30 connections�

Connections

Measurement terminals ( 1, 2, 3, 4, 5, 6, 7, 8, 9, 11)

Maximum cable cross-section 16 mm2 ( 10 mm2 with end sleeve ) ≤ 1.2 Nm

Screwdrivers head PZ2

Impulse output terminals ( 21, 22 ) and Power supply ( 13, 14)

Maximum cable cross-section 1.5 mm2 ( 1.5 mm2 with end sleeve ) ≤ 0.6 Nm

Screwdrivers head at head ( 3 x 0.5 mm)

Once connected, the unit can be protected with two connection seals ( Figure 4).

Instruction Manual

Figure 4: Seal of the CEM-C30�

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CEM-C30

When the unit is connected to the mains, attach the safety label (Figure 5) to terminals 13 and 14, in order to prevent the risk of electric shock caused by an involuntary direct contact.

13 14

Figure 5: Attaching the safety label�

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CEM-C30

4�- OPERATION

The CEM-C30 is an energy meter capable of measuring:

 Imported and exported active energy and reactive energy in the four quadrants. (according to version).

 Active, reactive and apparent power (according to version).  RMS voltage and current  Power factor, PF

4.1.- BUTTON FUNCTIONS

The CEM-C30 has 2 buttons that allow you to browse the different screens and program the unit.

The button can be sealed to prevent access to the programming of the most relevant parameters.

To seal the button, insert the seal through the slot found under the button, Figure 6.

Figure 6: Sealing the button�

Button functions on the measuring screens (Table 5):

Table 5: Button functions on measuring screens�

Button Short press Long press (> 2 s)

For the cyclic movement. Next screen.

Enters reading mode.

Instruction Manual

Enter the programming menu -

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4.2.- DISPLAY

The unit has an LCD where all parameters are displayed.

The display is divided into three areas (Figure 7):

CEM-C30

Figure 7: CEM-C30 Display areas

 Data line, displaying the values measured by the unit.

Units, where the unit of the magnitude being viewed is shown.

Indicators, which shows other parameters:

Indicates that the energy being viewed is generated.

Indicates that the energy being viewed is consumed.

Indicates that the energy is inductive. Indicates that the energy is capacitive.

COM, indicates that there is a communications module connected. It ashes when the

communications are established. L1 - L2 - L3 - Indicates the presence of voltage in each phase, with its corresponding current direction: “ - “ is used to show the power yielded to the network. “ “ is used to show the power absorbed by the network.

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CEM-C30

4.3.- LED INDICATORS

The unit has two verication LEDs:

 To verify the active energy�  To verify the reactive energy (according to version).

The weight of the LEDs is 20,000 imp/kWh (kvarh).

The LEDs will remain lit when the current is lower than the energy meter start-up current. Once the start-up current is exceeded (due to active or reactive power consumption) the LEDs are turned off and emit impulses that are proportional to the measured energy.

Figure 8:LED Indicators of the CEM-C30�

Active LED

Reactive LED

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CEM-C30

4.4.- DISPLAY MODES:

The CEM-C30 has 2 display modes:

 Display in standby mode  Display in reading mode

4�4�1� DISPLAY IN STANDBY MODE

With the display in standby mode, all of the information is presented in cyclic form without any need to perform any action on the CEM-C30 buttons.

7 different parameters are viewed in this mode, see Table 6, in which they alternate every 6 seconds.

The unit is in this mode by default when none of the buttons are pressed.

Short press the button to stop the cyclic movement of the parameter being shown at the time.

From then on, short press the button to browse all the parameters dened in Table 6.

Table 6: Standby mode displays

Screen Parameters

Total imported active energy

Total exported active energy

Only displayed in the 4-quadrant version.

Reactive energy quadrant L+ total

(1)

16

Reactive energy quadrant L- total

Only displayed in the 4-quadrant version.

Reactive energy quadrant C- total

Only displayed in the 4-quadrant version.

(1)

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CEM-C30

Table 6 ( Continuation ) : Standby mode displays

Screen Parameters

Reactive energy quadrant C+ total

(1)

Only displayed if the reactive energy display option has been selected in the setup menu. ( see “4.7.6.

(1)

Display” )

The standby mode is activated again when no button is pressed for 60 seconds.

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4�4�2� DISPLAY IN READING MODE

The reading mode is activated by a long press on the button. In reading mode you can:

 View the voltage, current, active power, apparent power and power factor of the installation.

 View the energies of the partial energy meters.

 Enter the setup menu.  View the manufacturer information.

The navigation diagram is shown in Figure 9:

CEM-C30

18

Figure 9: Navigation diagram in reading mode of the CEM-C10�

Note: PC is a short press on the button (< 2 seconds).

PL is a long press (> 2 seconds).

Instruction Manual

CEM-C30

4.5.- INSTANTANEOUS VALUE DISPLAY

To open the screens where the instantaneous value are viewed, long press the key on the display in standby mode. The home screen is displayed, Figure 10:

Figure 10: Instantaneous Value main screen�

Long press the button to open the different screens.

Short press the button to browse the different screens (see Table 7).

Long press the button to exit the instantaneous values screens. The standby mode is activated again when no button is pressed for 60 seconds.

Table 7: Instantaneous value screens

Screen Parameters

L1 Voltage

L2 Voltage

L3 Voltage

Instruction Manual

L1 Current

L2 Current

19

Table 7 ( Continuation ) : Instantaneous value screens

Screen Parameters

L3 Current

Active three-phase power

CEM-C30

Reactive three-phase power

Apparent three-phase power

L1 Power Factor

L2 Power Factor

L3 Power Factor

(1)

20

Hours of operation from manufacture

(1)

The unit must be connected to the L1 phase to calculate the reactive power.

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CEM-C30

4.6.- PARTIAL ENERGY DISPLAY

NB: The partial energy display menu is only displayed if the partial energy display option has been selected in the setup menu ( see “4.7.6. Display” )

Long press the key in the standby mode screen to open these display screens. Short press the key to display the partial energy main screen, Figure 11:

Figure 11: Partial energy main screen�

Long press the button to access the different partial energy screens.

Short press the button to browse the different screens (see Table 8). The PAR icon on the screen indicates that you are viewing the partial energies.

Long press the button to exit the partial energy screens. The standby mode is activated again when no button is pressed for 60 seconds.

Table 8:Partial energy screens�

Screen Parameters

Partial imported active energy

Partial exported active energy

Only displayed in the 4-quadrant version.

Instruction Manual

Partial reactive energy, quadrant 1 (L+)

Partial reactive energy, quadrant 2 (L-)

(1)

Only displayed in the 4-quadrant version.

(1)

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Table 8 ( Continuation ) : Partial energy screens�

Screen Parameters

CEM-C30

Partial reactive energy, quadrant 3 (C -)

(1)

Only displayed in the 4-quadrant version.

Partial reactive energy, quadrant 4 (C +)

(1)

Hours in partial operation

(since the last partial reset )

Cost of the partial active energy consumed

(since the last partial reset )

(2)

CO2 emissions into the atmosphere.

(since the last partial reset )

(2)

(

1)

Only displayed if the reactive energy display option has been selected in the setup menu (see “4.7.6.

Display” )

(2)

Only displayed if the efciency factors display option has been selected in the setup menu (see

“4.7.6. Display”)

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CEM-C30

4.7.- CONFIGURATION

In the setup menu you can:

 Program the weight and type of impulse output  Program the communications.  Program the display screen.

 Program the cost of the energy and the CO2. emissions

 Partial energy meter deletion.

The standby mode is activated again when no button is pressed for 60 seconds.

Long press the button in the standby mode screen to open these setup screens. Short press the button to display the home screen, Figure 12:

Figure 12: Home setup screen�

Long press the button to access the rst programming step.

4�7�1� Impulse output weight

This is the home screen for entering the weight of the impulse output.

Long press the button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 13) indicating that the programming value has been saved.

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CEM-C30

Figure 13: Validation screen�

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Impulse output weight programming main screen.

Minimum value: 99999. Maximum value: 0.

Short press the button to access the next programming step.

4�7�2� Impulse output type

The impulse output type is selected on this screen, between:

kWh or KVArh�

Short press the

button to browse the different options.

To validate the data, long press the button and the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Impulse output type programming main screen.

Short press the button to access the next programming step.

4�7�3� Peripheral address

NB: This is only displayed if there is a CEM M-RS485 (communications interface for the CEM family of units) connected to the unit.

24

This is the home screen for entering the peripheral address.

Long press the button to view the value to be programmed.

Instruction Manual

CEM-C30

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the

Peripheral address programming main screen.

Minimum value: 1. Maximum value: 254

Short press the button to access the next programming step.

4�7�4� Transmission speed ( Baud rate)

NB: This is only displayed if there is a CEM M-RS485 (communications interface for the CEM family of units) connected to the unit.

This is the home screen for entering the transmission speed.

Long press the button to view the value to be programmed.

The transmission speed (Baud rate) is selected on this screen, and may be: 9600, 19200 or 38400�

Short press the

button to browse the different options.

To validate the data, long press the button and the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Transmission speed programming main screen.

Short press the button to access the next programming step.

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CEM-C30

4�7�5� Type of communications

NB: This is only displayed if there is a CEM M-RS485 (communications interface for the CEM family of units) connected to the unit.

This is the home screen for selecting the number of bits, the parity and the number of stop bits of the communications frame.

Long press the button to view the value to be programmed.

This screen shows the different options:

8n1 : 8 bits, no parity, 1 stop bit.

8E1 : 8 bits, even parity, 1 stop bit. 8o1 : 8 bits, odd parity, 1 stop bit. 8n2 : 8 bits, no parity, 2 stop bits. 8E2 : 8 bits, even parity, 2 stop bits. 8o2 : 8 bits, odd parity, 2 stop bits.

Short press the button to browse the different options.

To validate the data, long press the button and the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Communications type programming main screen.

Short press the button to access the next programming step.

4�7�6� Display

This is the home screen for selecting the unit display options.

Long press to access the partial energy display selection screen:

26

4�7�6�1� Partial energy display

This is the home screen for selecting the partial energy display view option.

Instruction Manual

CEM-C30

Long press to view the options.

The possible options are:

Yes, if you want to view the partial energy. No, if you select this option, the unit stops recording the partial

energy. A display view is not provided and the value displayed by communications is 0.

Para saltar entre las diferentes opciones pulsar la tecla de pulsaciones cortas.

con

To validate the data, long press the button. The unit will return to the main programming screen of the Partial energy display.

Short press to access the reactive energy display selection screen:

4�7�6�2� Reactive energy display

This is the home screen for selecting the reactive energy log display view option.

Long press to view the options.

The possible options are:

Yes, if you want a display view of the reactive energy screens. No, a display view of the reactive energy screens is not provided,

but a communications view is possible.

Short press the

button to browse the different options.

To validate the data, long press the button. The unit will return to the main programming screen of the Reactive energy display.

Short press to access the efciency factors display selection screen:

4.7.6.3. Efciency factors display

This is the home screen for selecting the display view of the efciency factors: Cost of energy and CO2 emissions.

Long press to view the options.

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CEM-C30

The possible options are: Yes, if you want a display view of the efciency screens (cost of energy and CO2 emissions). No, if you select this option, the unit stops recording the efciency factors. A display view is not provided and the value displayed by communications is 0.

Short press the

button to browse the different options.

To validate the data, long press the button. The unit will return to the main programming screen of the Efciency factors display.

Short press to access the display menu output screen:

When this screen is displayed:

Short press the point of the display (

Long press the

button to return to the rst conguration

“4�7�6�1� Partial energy display” )

button to jump to the next programming

point.

4�7�7� Backlight

This is the home screen for selecting the backlight operating mode of the screen in those units that feature it.

Long press to view the different options:

This screen shows the different options:

On : Backlight always ON.

Off : Backlight always OFF. 005 SEC ... 120 SEC: ON time after the last press of the buttons.

Short press the button to browse the different options.

To validate the data, long press the button and the validation screen will appear (Figure

13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown in Figure 13 , it returns to the main programming screen of the Backlight.

28

Short press the .button to access the next programming step.

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CEM-C30

4�7�8� Energy cost

NB: It is only displayed if the efciency factors display has been selected.

This is the home screen for entering the energy cost per kWh.

Long press the button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Energy

cost programming main screen.

Minimum value: 0.000 Maximum value: 9999.999

Short press the button to access the next programming step.

4�7�9� CO2 emissions

NB: It is only displayed if the efciency factors display has been selected.

This is the home screen for entering the ratio of the carbon emissions. The carbon emissions ratio is the amount of emissions released into the atmosphere to produce a unit of electricity (1 kWh). The European mix ratio is approximately 0.65 kgCo2 per kWh.

Long press the button to view the value to be programmed.

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CEM-C30

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 13) indicating that the programming value has been saved.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the CO2

emissions programming main screen.

Minimum value: 0.000 Maximum value: 9.000

Short press the button to access the next programming step.

4�7�10� Partial energy meter deletion

NB: It is only displayed if the partial energy display has been selected.

On this screen you select whether or not to delete the partial energy meters.

Long press the validation screen (

button to delete the energy meters. The

Figure 13) will be displayed next, indicating that

the energy meters were deleted correctly.

After a few seconds viewing the screen shown on Figure 13 , the system returns to the Partial energy meter deletion programming main screen.

Short press the button to access the next programming step.

4�7�11� Exiting the setup menu

30

When this screen is displayed:

Long press the

Short press the

button to exit the setup menu.

button to return to the rst setup point

( “4.7.1. Impulse output weight”)

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CEM-C30

4.8.- MANUFACTURER INFORMATION SCREEN

Long press the button in the standby mode screen to open these display screens. Short press the button to display the manufacturer information home screen, Figure 14:

Figure 14: Manufacturer information home screen�

Long press the button to open the different screens.

Short press the button to browse the different screens (see Table 9).

Long press the button to exit the instantaneous values screens. The standby mode is activated again when no button is pressed for 60 seconds.

Table 9: Manufacturer information screens�

Screen Parameters

Unit model

Version

Communications protocol

(1)

Instruction Manual

Communications protocol

version

(1)

Active energy with resolution in Wh

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Table 9 ( Continuation ) : Manufacturer information screens�

Screen Parameters

Reactive energy with resolution varh

CEM-C30

(1)

The screen is displayed if there is a CEM M-RS485 (communications interface for units of the CEM

family) connected to the unit.

4.9.- PROGRAMMING

32-bit CRC

The most relevant parameters in metrological terms are congured in the programming menu.

Short press the button to access this menu.

This button is sealable, see “4.1.- BUTTON FUNCTIONS”, to restrict access to the programming procedures.

The standby mode is activated again when no button is pressed for 60 seconds or by short

pressing the button.

4�9�1� Voltage primary transformation ratio

This is the home screen for entering the voltage primary ratio.

Long press the

button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

32

Instruction Manual

CEM-C30

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 15) indicating that the setup value has been saved.

Figure 15: Validation screen�

After a few seconds viewing the screen shown on Figure 15 , the system returns to the main screen of the Primary voltage transformation ratio.

Short press the button to access the next programming step

4�9�2� Voltage secondary transformation ratio

This is the home screen for entering the voltage secondary ratio.

Long press the

button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 15) indicating that the setup value has been saved.

After a few seconds viewing the screen shown on Figure 15 , the system returns to the main screen of the Secondary voltage transformation ratio.

Short press the button to access the next programming step

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4�9�3� Current primary transformation ratio

This is the home screen for entering the current primary ratio.

CEM-C30

Long press the

button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 15) indicating that the setup value has been saved.

After a few seconds viewing the screen shown on Figure 15 , the system returns to the main screen of the Primary current transformation ratio.

Short press the button to access the next programming step

4�9�4� Current secondary transformation ratio

This is the home screen for entering the current secondary ratio.

Long press the

button to view the value to be programmed.

To write or modify the value, short press the button repeatedly, increasing the value of the ashing digit.

When the desired value is shown on the screen, move onto the next digit with a long press on

the button, allowing the remaining values to be modied.

34

To validate the data, move to the last digit and long press the button; the validation screen will appear (Figure 15) indicating that the setup value has been saved.

Instruction Manual

CEM-C30

After a few seconds viewing the screen shown on Figure 15 , the system returns to the main screen of the Secondary current transformation ratio.

4�9�5� Exiting the setup menu

When this screen is displayed:

Long press the

Short press the

button to exit the programming menu.

button to return to the rst programming

point ( “4.9.1. Voltage primary transformation ratio”)

4.10.- IMPULSE OUTPUT

The energy meter has optocoupler type outputs capable of generating impulses at a previously programmed rate. (See “4.7.1. Impulse output weight” and ”4.7.2. Impulse output type” )

4.11.- INFRARED COMMUNICATIONS PORT

In all versions, the unit has a serial optical communications port, in compliance with the UNE EN 62056-21:2003 Standard.

Instruction Manual

35

5�- TECHNICAL FEATURES

Power supply

Mode Auxiliary

Rated voltage 230 V ~

Tolerance ± 20 %

Frequency 50...60Hz

CEM-C30

Consumption

Voltage Measurement

Connection Three-phase

Reference voltages (according to version)

Frequency (according to version)

Self-consumption of the voltage circuit

Current measurement (according to version)

T6 T5

Current (Ib / Iref) 5 A 5 A

Maximum current (Imax) 6 A 10 A

Start-up current 0.04% of Itr 0.04% of Itr

Self-consumption of the current circuit 0.3 VA @ 10 A 0.3 VA @ 10 A

Itr 0.250 A 0.250 A

Ist 0.010 A 0.010 A

Imin 0.050 A 0.050 A

Maximum overcurrent time ( 20xImax) ( according to EN-50470-3)

3x57/100 ... 3x230/400V ~ 3x57/100 V ~

< 10VA (In, Vref (without auxiliary services))

V L

M N Q

3x63.5/110 V ~ 3x127/220 V ~ 3x230/400 V ~

A B C

50 Hz 60 Hz 50/60 Hz

< 10VA (In, Vref (without auxiliary services))

500 ms 500 ms

< 2 W

Accuracy

Active Energy

Reactive Energy Class 2.0 (IEC 62053-23)

Insulation

AC voltage 4kV RMS 50Hz during 1 minute

Overimpulse

1�2/50ms 0R source impedance 6 kV at 60º and 240º, with positive and negative polarization

Calculation and processing

Microprocessor ARM

AD converter 16-bit

Impulse output

Type Optocoupler

Operation Emission of impulses proportional to the energy

Electrical features Max. 24V 50mA

Impulse ON/OFF time 40 ms

CEM-C30 MID CEM-C30

Class B (EN 50470) Class 1 (IEC 62053-21)

36

Instruction Manual

CEM-C30

( Continuation ) Impulse output

Programmed weight of the impulse 10 Wh / impulse

No� of maximum impulses per second 12

IR port (service port)

Hardware EN62056-21

Communications protocol Modbus

Baud rate 9600

Data bits 8

Stop bits 1

Parity no parity

User interface

Display LCD

Maximum counter value 999999.9 kWh

Buttons 2 buttons

LED

2 LEDs: kWh, 20000 imp/kWh

kvarh, 20000 imp/kvarh

Environmental features

Operating temperature -25ºC... +70ºC

Storage temperature -35ºC... +80ºC

Relative humidity (non-condensing) 5 ... 95%

Maximum altitude 2,000 m

Mechanical features

Dimensions ( Figure 16) in mm. IEC60715

Weight 230 g.

Enclosure EN50022

Protection degree

70

5 44

IP 51 installed

IP40 in terminal area

64

90

Instruction Manual

35.5

Figure 16: Dimensions of the CEM-C30�

45

65

37

Standards

Electrical energy metering equipment (AC)� Part 1: General requirements, tests and test conditions� Metering equipment (indexes of classes A, B and C)

Electrical energy metering equipment (AC)� Part 3: Particular require-

ments. Static active energy meters (classication indexes A, B and C).

Electrical energy metering equipment (AC)� Particular requirements� Part 21: Static active energy meters (classes 1 and 2)

Electrical energy metering equipment (AC)� Particular requirements� Part 23: Static reactive energy meters (classes 2 and 3)�

CEM-C30

UNE EN 50470-1:2007

UNE EN 50470-3:2007

IEC 62053-21:2003

IEC 62053-23:2003

38

Instruction Manual

CEM-C30

6�- MAINTENANCE AND TECHNICAL SERVICE

In the case of any query in relation to unit operation or malfunction, please contact the

CIRCUTOR, SA Technical Support Service.

Technical Assistance Service

Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona) Tel: 902 449 459 ( España) / +34 937 452 919 (outside of Spain) email: sat@circutor.es

7�- GUARANTEE

CIRCUTOR guarantees its products against any manufacturing defect for two years after the

delivery of the units.

CIRCUTOR will repair or replace any defective factory product returned during the guarantee period.

• No returns will be accepted and no unit will be repaired or replaced if it is not accompanied by a report indicating the defect detected or the reason for the return.

•The guarantee will be void if the units has been improperly used or the storage, installation and maintenance instructions listed in this manual have not been followed. “Improper usage” is de ned as any operating or storage condition contrary to the national electrical code or that surpasses the limits indicated in the technical and environmental features of this manual.

• CIRCUTOR accepts no liability due to the possible damage to the unit or other parts of the installation, nor will it cover any possible sanctions derived from a possible failure, improper installation or “improper usage” of the unit. Consequently, this guarantee does not apply to failures occurring in the following cases:

- Overvoltages and/or electrical disturbances in the supply;

- Water, if the product does not have the appropriate IP classi cation;

- Poor ventilation and/or excessive temperatures;

- Improper installation and/or lack of maintenance;

- Buyer repairs or modi cations without the manufacturer’s authorisation.

Instruction Manual

39

8�- CE CERTIFICATE

CEM-C30

40

Instruction Manual

CEM-C30

Instruction Manual

41

CIRCUTOR, SA

Vial Sant Jordi, s/n 08232 -Viladecavalls (Barcelona) Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14 www.circutor.es central@circutor.es

CIRCUTOR CEM-C30 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY PRECAUTIONS

DISCLAIMER

CONTENTS

REVISION LOG

1�- VERIFICATION UPON RECEPTION

2�- PRODUCT DESCRIPTION

3�- UNIT INSTALLATION

3.1.- PRELIMINARY RECOMMENDATIONS

3.2.- INSTALLATION

3.3.- UNIT TERMINALS

3.4.- CONNECTION DIAGRAM

3.5.- CONNECTIONS

4�- OPERATION

4.1.- BUTTON FUNCTIONS

4.2.- DISPLAY

4.3.- LED INDICATORS

4�4�1� DISPLAY IN STANDBY MODE

4�4�2� DISPLAY IN READING MODE

4.5.- INSTANTANEOUS VALUE DISPLAY

4.6.- PARTIAL ENERGY DISPLAY

4�7�1� Impulse output weight

4�7�2� Impulse output type

4�7�3� Peripheral address

4�7�4� Transmission speed ( Baud rate)

4�7�5� Type of communications

4�7�6� Display

4�7�7� Backlight

4�7�8� Energy cost

4�7�9� CO2 emissions

4�7�10� Partial energy meter deletion

4�7�11� Exiting the setup menu

4.8.- MANUFACTURER INFORMATION SCREEN

4�9�1� Voltage primary transformation ratio

4�9�2� Voltage secondary transformation ratio

4�9�3� Current primary transformation ratio

4�9�4� Current secondary transformation ratio

4�9�5� Exiting the setup menu

4.10.- IMPULSE OUTPUT

4.11.- INFRARED COMMUNICATIONS PORT

5�- TECHNICAL FEATURES

6�- MAINTENANCE AND TECHNICAL SERVICE

7�- GUARANTEE

8�- CE CERTIFICATE