Circutor CEM-C31-T1 User manual

INSTRUCTION MANUAL
(M017B01-03-23A)
Multifunctional energy meter
CEM-C31-T1, CEM-C31-T1-MID
CEM-C31-485-T1, CEM-C31-485-T1-MID
CEM-C31-485-DS, CEM-C31-485-DS-MID

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Instruction Manual

SAFETY PRECAUTIONS
DISCLAIMER
CIRCUTOR S.A.U. reserves the right to make modifications to the device or the unit specifications set
out in this instruction manual without prior notice.
CIRCUTOR S.A.U. on its web site, supplies its customers with the latest versions of the device specifi-
cations and the most updated manuals.
www.circutor.com
CIRCUTOR S.A.U. recommends using the original cables and accessories that are sup-
plied 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 specific 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 device may result in injury to personnel as well as damage to
the device. 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
fire.
Read the manual carefully prior to connecting the device. Follow all installation and maintenance in-
structions throughout the device’s working life. Pay special attention to the installation standards of
the National Electrical Code.
Refer to the instruction manual before using the device
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 device and/or installations.
CIRCUTOR S.A.U. reserves the right to modify features or the product manual without prior notification.
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CONTENTS
SAFETY PRECAUTIONS .........................................................................................................................................................3
DISCLAIMER ..........................................................................................................................................................................3
CONTENTS.............................................................................................................................................................................4
REVISION LOG .......................................................................................................................................................................5
SYMBOLS...............................................................................................................................................................................5
1. VERIFICATION UPON RECEPTION....................................................................................................................................6
2. PRODUCT DESCRIPTION .................................................................................................................................................6
2.1.- ENERGY METER VERSIONS ......................................................................................................................................7
3. DEVICE INSTALLATION....................................................................................................................................................8
3.1.- PRELIMINARY RECOMMENDATIONS ........................................................................................................................8
3.2.- INSTALLATION .........................................................................................................................................................9
3.3.- DEVICE TERMINALS.................................................................................................................................................9
3.3.1. MODEL CEM-C31-T1............................................................................................................................................9
3.3.2. MODEL CEM-C31-485-T1 .................................................................................................................................10
3.3.3. MODEL CEM-C31-485-DS ................................................................................................................................10
3.4.- CONNECTION DIAGRAM..........................................................................................................................................11
3.5.- CONNECTIONS....................................................................................................................................................... 12
4. OPERATION ................................................................................................................................................................... 14
4.1.- BUTTON FUNCTIONS.............................................................................................................................................. 14
4.2.- DISPLAY................................................................................................................................................................. 15
4.3.- LED INDICATORS.................................................................................................................................................... 16
4.4.- IMPULSE OUTPUT (CEM-C31-T1 and CEM-C31-485-T1 models) ......................................................................... 16
4.5.- DIGITAL INPUT (CEM-C31-485-DS) ...................................................................................................................... 17
5. DISPLAY.........................................................................................................................................................................18
5.1.- DISPLAY IN STANDBY MODE ..................................................................................................................................18
5.2.- DISPLAY IN READING MODE.................................................................................................................................. 21
5.3.- INSTANTANEOUS VALUE DISPLAY.........................................................................................................................22
5.4.- PARTIAL ENERGY DISPLAY ....................................................................................................................................24
5.5.- IMPULSE COUNT DISPLAY (CEM-C31-485-DS) ....................................................................................................27
5.6.- MANUFACTURER INFORMATION SCREEN .............................................................................................................28
6. CONFIGURATION .......................................................................................................................................................... 30
6.1.- RELEVANT PARAMETERS CONFIGURATION.......................................................................................................... 30
6.1.1. VOLTAGE PRIMARY TRANSFORMATION RATIO ................................................................................................ 30
6.1.2. VOLTAGE SECONDARY TRANSFORMATION RATIO............................................................................................ 31
6.1.3. CURRENT PRIMARY TRANSFORMATION RATIO ............................................................................................... 31
6.1.4. CURRENT SECONDARY TRANSFORMATION RATIO ..........................................................................................32
6.1.5. EXITING THE SETUP MENU ..............................................................................................................................32
6.2.- GENERAL CONFIGURATION MENU .........................................................................................................................33
6.2.1. IMPULSE OUTPUT WEIGHT ..............................................................................................................................33
6.2.2. IMPULSE OUTPUT TYPE...................................................................................................................................34
6.2.3.- DIGITAL INPUT TYPE ......................................................................................................................................34
6.2.4. PERIPHERAL ADDRESS....................................................................................................................................35
6.2.5. TRANSMISSION SPEED  BAUD RATE .............................................................................................................35
6.2.6. TYPE OF COMMUNICATIONS ............................................................................................................................36
6.2.7. DISPLAY ............................................................................................................................................................37
6.2.8. BACKLIGHT .................................................................................................................................................39
6.2.9. ENERGY COST...................................................................................................................................................39
6.2.10. CO2EMISSIONS.............................................................................................................................................. 40
6.2.11. PARTIAL ENERGY METER DELETION.............................................................................................................. 41
6.2.12. EXITING THE SETUP MENU ............................................................................................................................ 41
7. COMMUNICATIONS ........................................................................................................................................................42
7.1.- INFRARED COMMUNICATIONS PORT (Model CEM-C31-T1)....................................................................................42
7.2.- RS-485 COMMUNICATIONS PORT (Models CEM-C31-485-xx) .............................................................................42
7.2.1.- CONNECTION....................................................................................................................................................42
7.2.2.- MODBUS PROTOCOL........................................................................................................................................43
7.2.3.- VARIABLES MODBUS.......................................................................................................................................44
8. TECHNICAL FEATURES..................................................................................................................................................49
9. MAINTENANCE AND TECHNICAL SERVICE ...................................................................................................................52
10. EU DECLARATION OF CONFORMITY............................................................................................................................52
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REVISION LOG
Table 1: Revision log.
Date Revision Description
07/14 M017B01-03-14A Initial Version
11/14 M017B01-03-14B Changes in the following sections:
4.2.- 4.6
06/15 M017B01-03-15A Changes in the following sections:
2 - 3.5.- 4.4.1.- 4.4.2.- 4.5.- 4.6.- 4.7.- 5
01/17 M017B01-03-17A Changes in the following sections:
2 .- 5.- 8.
10/17 M017B01-03-17B Changes in the following sections:
5.
07/18 M017B01-03-18A Changes in the following sections:
2.- 3.3.- 4.7.3.- 4.7.4.- 4.7.5.- 4.8.- 4.12.- 5.
10/19 M017B01-03-19A
Changes in the following sections:
2.- 3.3.- 3.5.- 4.2.- 4.5.- 5.1.- 5.2.- 5.3.- 5.4.- 5.5.- 5.6.
- 6.2.- 7.2.2.2.- 7.2.3.- 8.
01/20 M017B01-03-20A Changes in the following sections:
3.2.- 3.5.
05/20 M017B01-03-20B Changes in the following sections:
8.
08/20 M017B01-03-20C Changes in the following sections:
3.2.- 5.- 8
12/21 M017B01-03-21A Changes in the following sections:
2.1.- 7.2.3.1.- 7.2.3.6.
09/23 M017B01-03-23A Changes in the following sections:
3.4.
Note: The images of the devices are solely for the purpose of illustration and may differ from the
original device.
SYMBOLS
Table 2: Symbols.
Symbol Description
Compliant with the relevant European standards.
Device covered by European directive 2012/19/EC. At the end of its useful
life, do not leave the unit in a household waste container. Follow local regulations
on electronic equipment recycling.
DC current
~AC current
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1. VERIFICATION UPON RECEPTION
Check the following points upon receiving the device:
a) The device meets the specifications described in your order.
b) The device has not suffered any damage during transport.
c) Perform an external visual inspection of the device prior to switching it on.
d) Check that it has been delivered with the following:
- An installation guide.
- Safety label (terminal cover).
If any problem is noticed upon reception, immediately contact the transport com-
pany and/or CIRCUTOR's after-sales service.
2. PRODUCT DESCRIPTION
The CEM-C31 static three-phase energy meter measures class B active energy (EN50470)/class 1(IEC
62053-21) and (optional) class 2 reactive energy (IEC 62053-23).
The current is measured with the transformer.
The device features:
- 2 buttons that allow you to browse the different screens and program the device.
- 2 Verification LEDs.
- LCD display, displays all parameters,
- 2 connection seals,
- 2 terminal covers, to cover the top of the terminal box and the fixing screws.
- RS-485 communications (CEM-C31-485-xx models).
- Optical communications port for communications with other modules installed on a DIN rail
with a service port (CEM-C31-T1 model).
- Impulse output (models CEM-C31-T1 and CEM-C31-485-T1).
- Digital input (model CEM-C31-485-DS).
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2.1.- ENERGY METER VERSIONS
The following table shows all the possible options that could be available for the CEM-C31. This table
is generic, which does not indicate that all the versions reflected in it currently exist.
Table 3: Energy meter versions.
ENERGY METER TYPE
CEM-C31-T1
CEM-C31-T1-MID
CEM-C31-485-T1
CEM-C31-485-T1-MID
CEM-C31-485-DS
CEM-C31-485-DS-MID
4 wires       4Connection mode
Class B Active/Class 2.0 Reactive 12
AccuracyClass 1 Active/Class 2.0 Reactive    12
Class C Active/Class 1.0 Reactive    05
3x57/100V … 3x230/400V       V
Measurement voltage
3x57/100V       L
3x63.5/110V       M
3x127/220V       N
3x230/400V       Q
Transformer 5(10) A       T5 Current measurement
Transformer 5(6) A       T6
50 Hz       A
Frequency60 HZ       B
Automatic (50/60Hz)       C
Without communications   0
CommunicationsOptical   1
RS-485     2
Without inputs/outputs 0
ExpansionImpulse output     1
Digital input   2
Box for assembly on DIN rail       EModel
2 quadrants (1)       0
Number of quadrants
4 quadrants (2)       1
Absolute Measure (ABS) (3)       2
No special features       0Additional features
Backlight       8
(1) 2 Quadrants: The device only records the energy consumed by the installation.
(2) 4 Quadrants: The device records both the energy consumed and the energy generated in two independent
registers.
(3) Absolute Measure (ABS): The device records the energies in an absolute value, thus adding the total energy
consumed and energy generated, and showing it as a single value.
Example: The code 412VT5A21E18 would be for a DIN rail mounting energy meter, class B in active and
class 2 in reactive; with 4-wire connection and measured in 4 quadrants; with multi-range measure-
ment voltages 3x57 / 100V… 3x230 / 400V and 5 (10) A in current measurement at 50Hz; with RS485
communication; with opto-isolated pulse output and with backlight.
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3. DEVICE INSTALLATION
3.1.- PRELIMINARY RECOMMENDATIONS
In order to use the device 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-C31 device must be installed by authorised and qualified staff.
The power supply plug must be disconnected and measuring systems switched off before handling, al-
tering the connections or replacing the device. It is dangerous to handle the device 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 device 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 device, do not use the device to take any measurements.
Inspect the work area before taking any measurements. Do not take measurements in dangerous ar-
eas or where there is a risk of explosion.
Disconnect the device from the power supply (device and measuring system power
supply) before maintaining, repairing or handling the device's connections.
Please contact the after-sales service if you suspect that there is an operational
fault in the device.
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3.2.- INSTALLATION
On the side of the device are all of the indications adjusted to the CEI 62052-11 standard.
The device must be installed on an electric panel or enclosure, attached to a DIN rail (IEC 60715). All
electrical connections must be covered by the plastic covers, being these of a minimum thickness of 3
mm, and only the display and keypad should remain exposed.
Terminals, opening covers or removing elements can expose parts that are hazard-
ous to the touch while the device is powered. Do not use the device until it is fully
installed.
3.3.- DEVICE TERMINALS
3.3.1. MODEL CEM-C31-T1
Table 4:List of CEM-C31-T1 terminals.
Device 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)
Figure 1:Terminals of the CEM-C31-T1.
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3.3.2. MODEL CEM-C31-485-T1
Table 5:List of CEM-C31-485-T1 terminals.
Device terminals
1 : S1, Current input L1 9 : S2, Current output L3
2 : L1, Voltage input L1 11 : N, Neutral connection
3 : S2, Current output L1 13 : Auxiliary Power Supply
4 : S1, Current input L2 14 : Auxiliary Power Supply
5 : L2, Voltage input L2 21 : Impulse output (Collector)
6 : S2, Current output L2 22 : Impulse output (Emitter)
7 : S1, Current input L3 23: B(-), RS-485
8 : L3, Voltage input L3 24: A(+), RS-485
Figure 2:Terminals of the CEM-C31-485-T1 and CEM-C31-485-DS.
3.3.3. MODEL CEM-C31-485-DS
Table 6:List of CEM-C31-485-DS terminals.
Device terminals
1 : S1, Current input L1 9 : S2, Current output L3
2 : L1, Voltage input L1 11 : N, Neutral connection
3 : S2, Current output L1 13 : Auxiliary Power Supply
4 : S1, Current input L2 14 : Auxiliary Power Supply
5 : L2, Voltage input L2 21: Digital input
6 : S2, Current output L2 22: Digital input (common)
7 : S1, Current input L3 23: B(-), RS-485
8 : L3, Voltage input L3 24: A(+), RS-485
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3.4.- CONNECTION DIAGRAM
L1
L2
L3
N
S2 S1
P2 P1
S2 S1
P2 P1
S2 S1
P2 P1
LOAD
Power
Supply
Figure 3: Three-phase connection diagram, CEM-C31.
L1
N
S2 S1
P2 P1
LOAD
Power
Supply
Figure 4: Single-phase connection diagram, CEM-C31.
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3.5.- CONNECTIONS
The CEM-C31 has terminal covers to cover the top of the terminal box and the fixing screws (Figure 5).
Figure 5: Terminal covers of the CEM-C31.
The fixing screws are of the mixed type, allowing the use of PH2 and flat head screwdrivers.
Table 7:CEM-C31 connections.
Connections
Measurement terminals (1, 2. 3, 4, 5, 6, 7, 8, 9, 11)
Maximum cable cross-section 16 mm2(10 mm2with end sleeve) ≤1.2 Nm
Screwdrivers head PH2
Impulse output terminals/ Digital input (21, 22), Power supply (13, 14) and RS-485 (23, 24)
Maximum cable cross-section 1.5 mm2(1.5 mm2with end sleeve) ≤0.6 Nm
Screwdrivers head flat head (3 x 0.5 mm)
Once connected, the device can be protected with two connection seals (Figure 6).
Figure 6: Seal of the CEM-C31.
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Once the device is powered, attach the safety label (Figure 7) to terminals 13 and 14 to
seal the device.
13 14
13 14
Figure 7: Attaching the safety label.
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4. OPERATION
The CEM-C31 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-C31 has 2 buttons that allow you to browse the different screens and program the device.
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 8.
ESCALA 2:1
ESCALA 2:1
Figure 8: Sealing the button.
Button functions on the measuring screens (Table 8):
Table 8: Button functions on measuring screens.
Button Short press Long press (> 2 s)
For the cyclic movement.
Next screen. Enters reading mode.
Enter the programming menu -
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4.2.- DISPLAY
The device has an LCD where all parameters are displayed. The display is divided into three areas
(Figure 9):
COM MAX DEM HOURS kgC02COST PAR
PF
%
LC
kWh
kVArh
T1 T2
Data line
Units
Indicator
Figure 9: CEM-C31 Display areas
Data line, displaying the values measured by the device.
Units, where the unit of the magnitude being viewed is shown.
Indicators, which shows other parameters:
COM, indicates that there is a communications module connected. It flashes when the communi-
cations are established.
HOURS, displays the time in hours.
kgCO2, displays the quantity of kgCO2released into the atmosphere according to the energy con-
sumed.
COST, indicates that the variable displayed in the data line is a cost.
PAR, indicates that the variable displayed in the data line is a partial meter.
T1 and T2, indicate the tariff corresponding to the on-screen information.
L1 - L2 - L3 - Indicates the presence of voltage in each phase, with its corresponding current di-
rection:
“ -“ is used to show the power yielded to the network.
“ “ is used to show the power absorbed by the network.
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.
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4.3.- LED INDICATORS
The device has two verification 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.
Active LED
Reactive LED
Figure 10:LED Indicators of the CEM-C31.
4.4.- IMPULSE OUTPUT (CEM-C31-T1 and CEM-C31-485-T1 models)
The energy meter has optocoupler type outputs capable of generating impulses at a previously pro-
grammed rate. (See “6.2.1. IMPULSE OUTPUT WEIGHT”and ”6.2.2. IMPULSE OUTPUT TYPE”)
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4.5.- DIGITAL INPUT (CEM-C31-485-DS)
The CEM-C31-485-DS model features a impulse input (terminals 21 and 22 in Table 6), to calculate
other supplies or select tariffs.
21 22
5 V DC
470 Ω
COMM
Figure 11: Digital input, CEM-C31-485-DS.
Active Tariff selection:
Table 9: Tariff selection.
Tariff Tariff selection
Tariff 1
21 22
Tariff 2
22 21
22
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5. DISPLAY
The CEM-C31 has 2 display modes:
Display in standby mode
Display in reading mode
Note: In the event of a critical error in the device, the word “Error” appears on the display. In this case,
the device can no longer be used and you must contact the TAS CIRCUTOR.
Figure 12: Error screen.
5.1.- 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-C31 buttons.
This mode displays different parameters, see Table 10 and Table 11, that alternate every 6 seconds.
The device 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 defined in Table 10 and Table
11.
Table 10: Standby mode displays (Table 1)
Models CEM-C31-T1, CEM-C31-485-T1, CEM-C31-485-DS (Impulse count option(4))
Screen Parameters
Total imported active energy
Total exported active energy
Only displayed in the 4-quadrant version.
Reactive energy quadrant L+ total (5)
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Table 10 (Continuation): Standby mode displays (Table 1)
Screen Parameters
Reactive energy quadrant L- total (5)
Only displayed in the 4-quadrant version.
Reactive energy quadrant C- total (5)
Only displayed in the 4-quadrant version.
Reactive energy quadrant C+ total (5)
(4) The impulse count option for the CEM-C31-485-DS model can be configured in section “6.2.3.- DIGITAL INPUT
TYPE”
(5) Only displayed if the reactive energy display option has been selected in the setup menu ( see “6.2.7.2.
REACTIVE ENERGY DISPLAY”).
Table 11: Standby mode displays (Table 2).
Model CEM-C31-485-DS (Tariff option(6))
Screen Parameters
kWh
T1
Imported active energy Tariff 1
kWh
T1
Exported active energy Tariff 1
Only displayed in the 4-quadrant version.
L
kVArh
T1
Reactive energy quadrant L+ Tariff 1 (7)
L
kVArh
T1
Reactive energy quadrant L- Tariff 1 (7)
Only displayed in the 4-quadrant version.
C
kVArh
T1
Reactive energy quadrant C- Tariff 1 (7)
Only displayed in the 4-quadrant version.
C
kVArh
T1
Reactive energy quadrant C+ Tariff 1 (7)
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Table 11 (Continuation) : Standby mode displays (Table 2).
Screen Parameters
kWh
T2
Imported active energy Tariff 2
kWh
T2
Exported active energy Tariff 2
Only displayed in the 4-quadrant version.
L
kVArh
T2
Reactive energy quadrant L+ Tariff 2 (7)
L
kVArh
T2
Reactive energy quadrant L- Tariff 2 (7)
Only displayed in the 4-quadrant version.
C
kVArh
T2
Reactive energy quadrant C- Tariff 2 (7)
Only displayed in the 4-quadrant version.
C
kVArh
T2
Reactive energy quadrant C+ Tariff 2 (7)
(6) The impulse count option for the CEM-C31-485-DS model can be configured in section “6.2.3.- DIGITAL
INPUT TYPE”
(7) Only displayed if the reactive energy display option has been selected in the setup menu ( see “6.2.7.2.
REACTIVE ENERGY DISPLAY”).
When the active Tariff does not match the Tariff being displayed, a flashing active Tariff indicator is
displayed.
The standby mode is activated again when no button is pressed for 60 seconds.
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