CIRCUTOR, SA reserves the right to make modifications to the device or the unit specifications 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 specifica- tions and the most updated manuals.
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CVM-D41 DC 5�6�6�- REFRESH TIME �����������������������������������������������������������������������������������������������������������������������������������������������36 5�6�7�- DELETING THE MAXIMUM & MINIMUM VALUES ���������������������������������������������������������������������������������������������36 5�6�8�- DELETING THE ELECTRICAL CHARGE TOTALISERS ����������������������������������������������������������������������������������������36 5�6�9�- DELETING THE ENERGY TOTALISERS ��������������������������������������������������������������������������������������������������������������37 5�6�10�- SAVE CONFIGURATION ���������������������������������������������������������������������������������������������������������������������������������37 5�7�- SOFTWARE VERSION ���������������������������������������������������������������������������������������������������������������������������������������������37 6�- RS-485 COMMUNICATIONS ����������������������������������������������������������������������������������������������������������������������������������������� 38 6�1�- CONNECTIONS ������������������������������������������������������������������������������������������������������������������������������������������������������...
CVM-D41 DC REVISION LOG Table 1: Revision log� Date Revision Description 04/22 M337B01-03-21A Initial version SYMBOLS Table 2: Symbols� Symbol Description In compliance with the relevant European directive. 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.
If any problem is noticed upon reception, immediately contact the transport com- pany and/or CIRCUTOR’s after-sales service. 2.- PRODUCT DESCRIPTION The CVM-D41 DC is designed to measure and display the DC volt age, DC current, power, energy electric charge. The device features: - 4 keys that allow you to browse between the various screens and program the device.
The CVM-D41 DC 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.
CVM-D41 DC 3�3�- DEVICE TERMINALS Figure 1: CVM-D41 DC terminals (Upper)� Table 4: CVM-D41 DC terminals (Upper)� Device terminals 5: IU-, Current measurement input / 1: L, Power supply Voltage measurement input 2: N, Power supply 4: I +, Current measurement input...
CVM-D41 DC 3�4�- CONNECTION DIAGRAM 3�4�1�- SIMULTANEOUS VOLTAGE AND CURRENT MEASUREMENT Alimentación Auxiliar Carga Shunt Power Supply Load 31 32 70 71 72 RS-485 Salida de relés Salida Analógica Relay output Analog output DIC 1 2 Entradas Digitales Digital inputs Figure 3: Voltage and current measurement�...
CVM-D41 DC 3�4�2�- VOLTAGE MEASUREMENT Alimentación Auxiliar Carga Power Supply Load 31 32 70 71 72 RS-485 Salida de relés Salida Analógica Relay output Analog output DIC 1 2 Entradas Digitales Digital inputs Figure 4: Voltage measurement� Note: To keep noise from appearing on the current screen, we recommend installing a jumper between terminals 4 and 5.
The status of the digital inputs, if an input is connected, its corresponding number flashes. The status of the relay outputs, if a relay is closed, its corresponding number flashes. 4�2�- KEYBOARD FUNCTIONS The CVM-D41 DC features 4 keys to display and configure the device, Figure 7 Table 6...
CVM-D41 DC Table 6 (Continuation): Keyboard functions� Keystroke Long keystroke (> 3s): Enter in configuration menu In the configuration menu: Jump to the next level / Confirm an operation Alimentación Auxiliar Carga Shunt Power Supply Load 4�3�- LEDs The device has 2 LEDs, AL1 and AL2 (...
Figure 8 ed depending on the value of the digital inputs (See “5.4.- RELAY OUTPUT 1” and “5.5.- RELAY OUTPUT 2”) 4�7�- DISPLAY The CVM-D41 DC features 7 display screens, . Use keys to browse through the Table 8 different screens.
CVM-D41 DC Table 8: (Continued): Display menu� Display menu 28347 k W h Positive energy 03607 k W h Negative energy 00047 Positive electric charge 00007 Negative electric charge The home screen, meaning the first screen displayed when powering up the device or when exiting the settings menu, can be programmed in section "�...
CVM-D41 DC 4�7�2�- TOTALISERS For the Positive Energy, Negative Energy, Positive Electric Charge and Negative Electric Charge pa- rameters, the value of Energy or Electric Charge since the device was started can be viewed by pressing the key while the corresponding parameter is being displayed.
Con guration of the display Software version Figure 9: CVM-D41 DC configuration menu� From any screen of the configuration menus, if no key is pressed for 4 minutes, the device leaves the configuration menu and returns to the display screen.
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CVM-D41 DC , key to access the configuration menu in the display mode, i.e., On the screen, press the the configuration parameters cannot be modified. On the screen, press the keys to access the configuration menu in the program- ming mode, i.e., the configuration parameters can be modified.
CVM-D41 DC 5�1�- CONFIGURATION OF THE INPUT shows the main screen of the input configuration menu, where the input measurement range Figure 12 and the display value are configured. inPt Figure 12: Input configuration menu, main screen� Press the key to open the configuration menu.
CVM-D41 DC When the desired value is shown on the screen, press the key to skip the digit. When you reach the last digit and press the key, you select the position of the decimal point. Use to modify the decimal point.
CVM-D41 DC Minimum configuration value: 1.000 A Maximum configuration value: 9999 A To validate the data, press the key. Use the keys to browse the configuration screens of the menu. 5�1�4�- CURRENT INPUT The shunt for the input current is selected on this screen.
CVM-D41 DC 5�1�6�- SAVE CONFIGURATION To save the configuration of the device, press the key, until the main screen of the input config- uration menu is opened, Figure 12 Press the key again to show the validation screen. SAuE Use the key to browse the different options: , exit the configuration without saving the changed values.
CVM-D41 DC 5�2�1�- MODBUS ADDRESS This screen is used to configure the modbus address of the device. 0001 Addr Use the , key to modify the value of the flashing digit When the desired value is shown on the screen, press the key to skip the digit.
CVM-D41 DC Use the key to browse the different options: n.8.1 , no parity, 8 data bits, 1 stop bit o.8.1 , odd parity, 8 data bits, 1 stop bit E.8.1, even parity, 8 data bits, 1 stop bit n.8.2...
CVM-D41 DC 5�3�1�- TYPE OF OUTPUT In this screen the output type of the analog output is configured nodE 4-20 Use the keys at the same time to configure the value. Use the key to browse the different options: Current Output Model: 4-20 , Current output 4 ...
CVM-D41 DC 5�3�3�- READING FOR THE START OF THE ANALOG OUTPUT In this screen, the reading value from which the analog output is started is configured. 0000 Use the , key to modify the value of the flashing digit When the desired value is shown on the screen, press the key to skip the digit.
CVM-D41 DC Maximum configuration value: 1.2 x A, for the analog output of the voltage measurement, 1.2 x A, for the analog output of the current measurement , for the analog output of the power measurement. PT-1 x CT-1 Note: The value of the A variable varies depending on the analog output parameter programmed, see Table 10 Note: FS (End of the analog output) - DS (Start of the analog output) ≥...
CVM-D41 DC 5�4�- RELAY OUTPUT 1 , shows the main screen of the configuration menu of relay output 1. Figure 18 do-1 Figure 18: Configuration menu of relay output 1, main screen� Press the key to open the setup menu.
CVM-D41 DC , alarm output. To validate the data, press the key. Use the keys to browse the configuration screens of the menu. 5�4�2�- RELAY PULSE DURATION The alarm relay can behave in 2 different ways: 1�- The relay is activated when the alarm is triggered and is deactivated when the alarm is de- activated.
CVM-D41 DC i--H , Active alarm when the current is higher than the alarm value. P--H , Active alarm when the power is higher than the alarm value. di1H , Active alarm when digital input 1 is connected. di2H, Active alarm when digital input 2 is connected.
CVM-D41 DC Use the keys to browse the configuration screens of the menu. 5�4�6�- HYSTERESIS This screen is used to configure the hysteresis value, i.e., the difference between the alarm connection and disconnection value. 0005 Use the , key to modify the value of the flashing digit When the desired value is shown on the screen, press the key to skip the digit.
CVM-D41 DC 5�6�- CONFIGURATION OF THE DISPLAY , shows the main screen of the configuration menu of the display. Figure 21 Figure 21: Configuration menu of the display, main screen� Press the key to open the configuration menu. CodE 0001...
CVM-D41 DC 5�6�1�- LOGIN PASSWORD This screen is used to configure the value of the password used to access the configuration menu in the programming mode. CodE 0000 Use the , key to modify the value of the flashing digit When the desired value is shown on the screen, press the key to skip the digit.
CVM-D41 DC Minimum configuration value: 0 s. Maximum configuration value: 9999 s. Note: If set to 0, the display backlight does not turn off. To validate the data, press the key. Use the keys to browse the configuration screens of the menu.
CVM-D41 DC To validate the data, press the key. Use the keys to browse the configuration screens of the menu. 5�6�6�- REFRESH TIME In this section the device refresh time is configured. ñ- Use the key to browse the different options: ,refresh time of 0.5 s.
CVM-D41 DC , the totalisers are cleared. To validate the data, press the key. Use the keys to browse the configuration screens of the menu. 5�6�9�- DELETING THE ENERGY TOTALISERS On this screen, the user selects whether or not to clear the energy totalisers.
The RS-485 cable must be wired with twisted pair cable with mesh shield, with a maximum distance between the CVM-D41 DC and the master device of 1200 metres. A maximum of 32 CVM-D41 DC devices can be connected to this bus. Use an intelligent RS-232 to RS-485 network protocol converter to establish the communications with the master device.
CVM-D41 DC 6�2�- MODBUS PROTOCOL In the Modbus protocol, the CVM-D41 DC device uses the RTU (Remote Terminal Unit) mode. The Modbus functions implemented in the device are as follows: Function 0x01: Reading a relay. Function 0x02: Reading input status.
CVM-D41 DC CRC: 8C3A, CRC.Character. Response: Initial Address Function Relay action Register 0000 FF00 8C3A 6�3�- MODBUS COMMANDS 6�3�1�- MEASUREMENT VARIABLES AND DEVICE STATUS All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x03 and 0x04.
CVM-D41 DC The format of the parameter Device status is shown in Table 14: Table 14:Format of the parameter: Device status� Bits Description Status Bit 0 0: Device measuring Device status 1:Device in configuration mode Bit 1 Bit 2 Malfunction...
CVM-D41 DC The format of the parameter is shown in Table 20: Table 20:Format of the parameter: Digital inputs� Register 1 Register 2 Digital input 1 Digital input 2 0001: Closed 0001: Closed 0000: Open 0000: Open 6�3�4�- REMOTE CONTROL OUTPUT (Relay output) All the addresses of Modbus memory are in Hexadecimal.
CVM-D41 DC Example: Clearing the energy totalisers: Initial relay Address Function Password ID reset ID value address AACC 1111 760D 6�3�6�- DEVICE CONFIGURATION VARIABLES All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x10�...
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CVM-D41 DC 6�3�6�3� Analog output Table 27:Modbus memory map: Analog output Analog output Parameter Format Address Valid data margin Current output model: 0: 4 ... 20 mA - 1: 0 ... 20 mA - Type of output 2: 4 ... 12 ... 20 mA Voltage output model: 7: 0 ...
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CVM-D41 DC 6�3�6�5� Configuration of the display Table 29:Modbus memory map: Configuration of the display Configuration of the display Parameter Format Address Valid data margin Login password 0000... 9999 Cyclic display 0... 60 s Backlight 0... 9999 s Light alarm 300...
CVM-D41 DC 7.- TECHNICAL FEATURES AC Power supply Rated voltage 100... 270 V ~ Frequency 50 / 60 Hz Consumption 6... 18 VA Installation category CAT III 300V DC Power supply Rated voltage 100... 270 V 20... 60 V Consumption 1,3...
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CVM-D41 DC Analog output Quantity Maximum internal voltage 17 V Linearity 0,5% Current output model: 0-20 mA, 4-20 mA, 4-12-20 mA (programmable) Nominal output range (10) Voltage output model: 0-10 V, 2-10 V (programmable) Maximum load resistor 350 Ω (10) Depending on model, see Table 7.
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Electrical equipment for measurement, control and laboratory use - EMC requirements - IEC 61326-1 Part 1: General requirements Safety requirements for electrical equipment for measurement, control and laboratory use IEC 61010-2-030 -- Part 2-030: Particular requirements for testing and measuring circuits Figure 24: Dimensions of the CVM-D41 DC� Instruction Manual...
CVM-D41 DC 8.- MAINTENANCE AND TECHNICAL SERVICE In the case of any query in relation to device 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.com...
CVM-D41 DC ANNEX A.- CONFIGURATION MENU 1000 >3s 0000 rEAd CodE ProG inPt Pt-i 1500 Voltage display value Voltage measurement 600.0 1000 Pt-2 1500 150.0 300.0 range Ct-1 100.0 Current display value 200.0 250.0 Ct-2 75.00 100.0 150.0 Current input 400.0...
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