Circutor CEM-C21-T1 Instruction Manual
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Circutor CEM-C21-T1 Instruction Manual

Multifunctional energy meter
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Multifunctional energy meter
CEM-C21-T1, CEM-C21-T1-MID
CEM-C21-485-T1, CEM-C21-485-T1-MID
CEM-C21-485-DS, CEM-C21-485-DS-MID
INSTRUCTION MANUAL
(M016B01-03-20B)

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  • Page 1 Multifunctional energy meter CEM-C21-T1, CEM-C21-T1-MID CEM-C21-485-T1, CEM-C21-485-T1-MID CEM-C21-485-DS, CEM-C21-485-DS-MID INSTRUCTION MANUAL (M016B01-03-20B)
  • Page 2 CEM-C21 Instruction Manual...

  • Page 3: Safety Precautions

    CIRCUTOR, SA reserves the right to modify features or the product manual without prior notifi cation. DISCLAIMER CIRCUTOR, SA reserves the right to make modifi cations to the device or the unit specifi ca- tions set out in this instruction manual without prior notice.

  • Page 4: Table Of Contents

    4�- OPERATION ���������������������������������������������������������������������������������������������������������������������������������������������������13 4�1�- BUTTON FUNCTIONS ���������������������������������������������������������������������������������������������������������������������������� 13 4�2�- DISPLAY �������������������������������������������������������������������������������������������������������������������������������������������������� 13 4�3�- LED INDICATORS ����������������������������������������������������������������������������������������������������������������������������������� 14 4�4�- IMPULSE OUTPUT (CEM-C21-T1 and CEM-C21-485-T1 models) ������������������������������������������������������ 15 4�5�- DIGITAL INPUT (CEM-C21-485-DS) ������������������������������������������������������������������������������������������������������� 15 5�- DISPLAY ����������������������������������������������������������������������������������������������������������������������������������������������������������16 5�1�- DISPLAY IN STANDBY MODE ���������������������������������������������������������������������������������������������������������������� 16 5�2�- DISPLAY IN READING MODE ����������������������������������������������������������������������������������������������������������������...

  • Page 5: Revision Log

    CEM-C21 REVISION LOG Table 1: Revision log� Date Revision Description 07/14 M016B01-03-14A Initial Version Changes in the following sections: 11/14 M016B01-03-14B 4.2. - 4.6 Changes in the following sections: 05/15 M016B01-03-15A 2 - 3.5 - 4.4.1. - 4.4.2. - 4.5. - 4.6. - 4.7. - 5 Changes in the following sections: 01/17 M016B01-03-17A...

  • Page 6: 1�- Verification Upon Reception

    - 2 terminal covers, to cover the top of the terminal box and the fixing screws. - RS-485 communications (CEM-C21-485-xx models). - Optical communications port for communications with other modules installed on a DIN rail with a service port (CEM-C21-T1 model). - Impulse output (models CEM-C21-T1 and CEM-C21-485-T1). - Digital input (model CEM-C21-485-DS).

  • Page 7: 3�- Device Installation

    CEM-C21 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 vari- ous warnings indicated in this instruction manual.

  • Page 8: 3�2�- Installation

    Do not use the device until it is fully installed. 3.3.- DEVICE TERMINALS 3�3�1� MODEL CEM-C21-T1 Table 3:List of CEM-C21-T1 terminals� Device terminals 1 : L1, Current input (voltage) L1 10: N, Neutral input...

  • Page 9: 3�3�2� Model Cem-C21-485-T1

    CEM-C21 3�3�2� MODEL CEM-C21-485-T1 Table 4:List of CEM-C21-485-T1 terminals� Device terminals 1 : L1, Current input (voltage) L1 12: N, Neutral output 3: L1, Current output (voltage) L1 13: Auxiliary Power Supply 4: L2, Current input (voltage) L2 14: Auxiliary Power Supply 6: L2, Current output (voltage) L2 21: impulse output (Collector) 7: L3, Current input (voltage) L3...

  • Page 10: 3�4�- Connection Diagram

    CEM-C21 3.4.- CONNECTION DIAGRAM Power Supply Figure 3: Connection diagram, CEM-C21� Instruction Manual...

  • Page 11: 3�5�- Connections

    CEM-C21 3.5.- CONNECTIONS The CEM-C21 has terminal covers to cover the top of the terminal box and the fixing screws Figure 4 Figure 4: Terminal covers of the CEM-C21� The fixing screws are of the mixed type, allowing the use of PZ2 and flat head screwdrivers. Table 6:CEM-C21 connections�...
  • Page 12 CEM-C21 Once the device is powered, attach the safety label to terminals 13 Figure 6 and 14 to seal the device. Figure 6: Attaching the safety label� Instruction Manual...

  • Page 13: 4�- Operation

    CEM-C21 4�- OPERATION The CEM-C21 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. ...

  • Page 14: 4�3�- Led Indicators

    CEM-C21 HOURS, displays the time in hours. kgCO2, displays the quantity of kgCO2 released into the atmosphere according to the energy consumed. 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.

  • Page 15: 4�4�- Impulse Output (Cem-C21-T1 And Cem-C21-485-T1 Models)

    CEM-C21 4.4.- IMPULSE OUTPUT (CEM-C21-T1 and CEM-C21-485-T1 models) The energy meter has optocoupler type outputs capable of generating impulses at a previously programmed rate. (See “6.1. IMPULSE OUTPUT WEIGHT” ”6.2. IMPULSE OUTPUT TYPE” 4.5.- DIGITAL INPUT (CEM-C21-485-DS) The CEM-C21-485-DS model features a impulse input (terminals 21 and 22 in...

  • Page 16: 5�- Display

    From then on, short press the button to browse all the parameters defined in Table 9 Table 10 Table 9: Standby mode displays (Table 1) Models CEM-C21-T1, CEM-C21-485-T1, CEM-C21-485-DS (Impulse count option Screen Parameters Total imported active energy Total exported active energy Only displayed in the 4-quadrant version.
  • Page 17 CEM-C21 Table 9 (Continuation): Standby mode displays (Table 1) Screen Parameters Reactive energy quadrant C+ total The impulse count option for the CEM-C21-485-DS model can be configured in section “6.3.- DIGITAL INPUT TYPE” Only displayed if the reactive energy display option has been selected in the setup menu ( see “6�7�2� REACTIVE ENERGY DISPLAY”).
  • Page 18 CEM-C21 Table 10 (Continuation) : Standby mode displays (Table 2)� Screen Parameters Reactive energy quadrant L+ Tariff 2 kVArh Reactive energy quadrant L- Tariff 2 Only displayed in the 4-quadrant version. kVArh Reactive energy quadrant C- Tariff 2 Only displayed in the 4-quadrant version. kVArh Reactive energy quadrant C+ Tariff 2 kVArh...

  • Page 19: 5�2�- Display In Reading Mode

    CEM-C21 5.2.- 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. ...

  • Page 20: 5�3�- Instantaneous Value Display

    CEM-C21 5.3.- 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 11 Figure 11: Instantaneous Value main screen� Long press the button to open the different screens.
  • Page 21 Parameters Active three-phase power Reactive three-phase power Apparent three-phase power L1 Power Factor L2 Power Factor L3 Power Factor CEM-C21-T1, CEM-C21-485-T1,CEM-C21-485-DS models (6): Hours of operation from manufacture HOURS CEM-C21-485-DS model Tariff 1 operating hours, from manufacture HOURS CEM-C21-485-DS model Tariff 2 operating hours, from manufacture The device must be connected to the L1 phase to calculate the reactive power.

  • Page 22: 5�4�- Partial Energy Display

    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 12:Partial energy screens (Table 1)� Models CEM-C21-T1, CEM-C21-485-T1, CEM-C21-485-DS (Impulse count option Screen Parameters Partial imported active energy Partial exported active energy Only displayed in the 4-quadrant version.
  • Page 23 CEM-C21 Table 12 (Continuation ): Partial energy screens (Table 1)� Screen Parameters Partial reactive energy, quadrant 3 ( C-) Only displayed in the 4-quadrant version. Partial reactive energy, quadrant 4 ( C+) Hours in partial operation (since the last partial reset ) Cost of the partial active energy consumed (since the last partial reset ) (10)
  • Page 24 CEM-C21 Tabla 13 (Continuation) : Partial energy screens (Table 2)� Screen Parameters Partial reactive energy, quadrant 2 (L-) Tariff 1. (12) Only displayed in the 4-quadrant version. kVArh Partial reactive energy, quadrant 3 (C-) Tariff 1. (12) Only displayed in the 4-quadrant version. kVArh Partial reactive energy, quadrant 4 (C+) Tariff 1.

  • Page 25: 5�5�- Impulse Count Display (Cem-C21-485-Ds)

    CEM-C21 Tabla 13 (Continuation) : Partial energy screens (Table 2)� Screen Parameters COST PAR T1 Cost of the partial active energy consumed Tariff 1 (since the last partial reset ) (13) kgC0 PAR T1 emissions into the atmosphere Tariff 1 (since the last partial reset ) (13) HOURS...

  • Page 26: 5�6�- Manufacturer Information Screen

    CEM-C21 To access the different screens, press key for a prolonged time. Short press the button to browse the different screens ( Table 14 To exit the impulse count screens, press key for a prolonged time. The standby mode is activated again when no button is pressed for 60 seconds. Table 14:Impulse count screens�...
  • Page 27 Active energy with resolution in Wh Reactive energy with resolution varh 32-bit CRC The screen is displayed if it is a CEM-C21-T1 and there is a CEM M-RS485 (communications inter- (15) face for the CEM family of devices) connected to the device.

  • Page 28: 6�- Configuration

    Long press the button to access the first programming step. 6.1.- IMPULSE OUTPUT WEIGHT Note: Screen only visible for CEM-C21-T1 and CEM-C21-485-T1 models. This is the home screen for entering the weight of the impulse output. Long press the button to view the value to be programmed.

  • Page 29: 6�2�- Impulse Output Type

    Maximum value: 0. Short press the button to access the next programming step. 6.2.- IMPULSE OUTPUT TYPE Note: Screen only visible for CEM-C21-T1 and CEM-C21-485-T1 models. The impulse output type is selected on this screen, between: kWh or KVArh� Short press the button to browse the different options.

  • Page 30: 6�4�- Peripheral Address

    CEM-C21 ) indicating that the programming value has been saved. Figure 16 After a few seconds displaying the screen in , it returns to the main digital input Type Figure 16 programming screen. Short press the button to access the next programming step. 6.4.- PERIPHERAL ADDRESS Note: This is only displayed if it is a CEM-C21-485-T1 or CEM-C21-485-DS or if there is a (communications interface for the CEM family of devices) connected to the CEM-...

  • Page 31: 6�5�- Transmission Speed ( Baud Rate)

    CEM-C21 6.5.- TRANSMISSION SPEED ( BAUD RATE) Note: This is only displayed if it is a CEM-C21-485-T1 or CEM-C21-485-DS or if there is a (communications interface for the CEM family of devices) connected to the CEM- CEM M-RS485 C21-T1 model. This is the home screen for entering the transmission speed.

  • Page 32: 6�7�- Display

    CEM-C21 This screen shows the different options: : 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.

  • Page 33: 6�7�2� Reactive Energy Display

    CEM-C21 Short press to access the reactive energy display selection screen. 6�7�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.

  • Page 34: 6�8�- Backlight

    CEM-C21 When this screen is displayed: Short press the button to return to the first configuration point of the display ( “ 6.7.1. PARTIAL ENERGY DISPLAY” Long press the button to jump to the next programming point. 6.8.- BACKLIGHT This is the home screen for selecting the backlight operating mode of the screen in those units that feature it.

  • Page 35: Emissions

    CEM-C21 To write or modify the value, short press the button repeatedly, increasing the value of the flashing digit. When the desired value is shown on the screen, move onto the next digit with a long press on button, allowing the remaining values to be modified. To validate the data, move to the last digit and long press the button;...

  • Page 36: 6�11�- Partial Energy Meter Deletion

    CEM-C21 Minimum value: 0.000 Maximum value: 9.000 Short press the button to access the next programming step. 6.11.- PARTIAL ENERGY METER DELETION Note: 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.

  • Page 37: 7�- Communications

    CEM-C21 7�- COMMUNICATIONS 7.1.- INFRARED COMMUNICATIONS PORT (Model CEM-C21-T1) The CEM-C21-T1 model, in all versions, the has a serial optical communications port, in com- pliance with the UNE EN 62056-21:2003 Standard. 7.2.- RS-485 COMMUNICATIONS PORT (Models CEM-C21-485-xx) The CEM-C21-485-T1 and CEM-C21-485-DS models has an RS-485 communication port, with MODBUS RTU ®...

  • Page 38: 7�2�2�- Modbus Protocol

    CEM-C21 7�2�2�- MODBUS PROTOCOL The MODBUS protocol is a communication standard in the industry that enables the network connection of multiple devices, where there is a master and multiple slaves. Within the MODBUS protocol the CEM-C21-485-xx uses the RTU (Remote Terminal Unit) mode. In RTU mode, message starts and ends are detected with silences of at least 3.5 characters, and the 16-bit CRC error-detection method is used.

  • Page 39: 7�2�3�- Variables Modbus

    CEM-C21 The device will respond to us with the next frame: Initial Register Address Function Register no� 03E8 0001 Note: The values are shown in hexadecimal. The number of registers to write must be the same as the size of the variable that is being accessed.
  • Page 40 CEM-C21 Table 17 (Continuation): Modbus variables: Energy (Table 2)� Address Description Size Units Tariff 1 Tariff 2 Partial values Partial imported active energy 0x0120 0x012C 32 bits Partial exported active energy 0x0122 0x012E 32 bits Q1 partial reactive energy 0x0124 0x0130 32 bits varh...
  • Page 41 CEM-C21 7�2�3�4�- Digital input (CEM-C21-485-DS) The Read function is implemented for these variables. Table 20: Modbus variables: Digital imput Description Address Size Digital Input status 0x0020 16 bits Total impulse count 0x0180 32 bits Partial impulse count 0x0182 32 bits 7�2�3�5�- Operating time, cost and KgCO atmospheric emissions The Read function is implemented for these variables.
  • Page 42 CEM-C21 Table 23 (Continuation): Energy meter model description table� bytes en formato Opciones ASCII Without communications Communications Side optical service port Without inputs/outputs Expansion Input/Output (Optocoupler) Model Box for assembly on DIN rail 2 quadrants Number of quadrants 4 quadrants Storage in both directions Additional features No special features...

  • Page 43: 8�- Technical Features

    1�2/50ms 0R source impedance 6 kV at 60º and 240º, with positive and negative polarization Calculation and processing Microprocessor AD converter 16-bit Impulse output (Models CEM-C21-T1 and CEM-C21-485-T1) Type Optocoupler Operation Emission of impulses proportional to the energy Electrical features Max.
  • Page 44 CEM-C21 (Continuation) Impulse output (Models CEM-C21-T1 and CEM-C21-485-T1) CEM-C21-T1-MID CEM-C21-T1 CEM-C21-485-T1-MID CEM-C21-485-T1 Impulse ON time 40 ms 200 ms No� of maximum impulses per second Digital input (Model CEM-C21-485-DS) Type Self-powered a +5V (Vmax: 5.1V, Imax: 8.5 mA) Operation Tariff selection 800 Ω...
  • Page 45 CEM-C21 (Continuation) Standards Electrical energy metering equipment (AC)� Part 3: Particular requirements� UNE EN 50470-3 Static active energy meters (classification indexes A, B and C). Electrical energy metering equipment (AC)� Particular requirements� Part IEC 62053-21 21: Static active energy meters (classes 1 and 2) Electrical energy metering equipment (AC)�...

  • Page 46: 9�- Maintenance And Technical Service

    • 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 pos- sible failure, improper installation or “improper usage”...

  • Page 47: 11�- Ce Certificate

    CEM-C21 11�- CE CERTIFICATE Instruction Manual...
  • Page 48 CEM-C21 Instruction Manual...
  • Page 49 CEM-C21 Instruction Manual...
  • Page 50 CEM-C21 Instruction Manual...
  • Page 51 CEM-C21 Instruction Manual...
  • Page 52 CEM-C21 Instruction Manual...
  • Page 53 CEM-C21 Instruction Manual...
  • Page 54 CIRCUTOR, SA Vial Sant Jordi, s/n 08232 -Viladecavalls (Barcelona) Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14 www.circutor.com central@circutor.com...

This manual is also suitable for:

Cem-c21-t1-midCem-c21-485-t1Cem-c21-485-t1-midCem-c21-485-dsCem-c21-485-ds-mid

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