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� CIRCUTOR, SA 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, recommends using the original cables and accessories that are supplied with the device�...
- An installation guide� - 1 MC3-75/0�25A measuring transformer - 1 WGC-30SC earth leakage transformer Immediately contact the carrier and/or CIRCUTOR's after-sales service if you detect any problem in the device upon reception� 2�- DESCRIPTION OF THE PRODUCT RECmax-CVM is a protection device, with cut-off capacity, which features overcurrent protec- tion, ultra-immunised earth leakage protection and a power analyzer�...
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RECmax-CVM - 2 alarm outputs� - 1 output to indicate the status of the main switch� - 1 digital output� - RS-485 communications� Instruction Manual...
RECmax-CVM 3�- INSTALLING THE DEVICE 3�1�- PRELIMINARY RECOMMENDATIONS The operators using and handling the device must follow the safety measures established in the country where the device will be used to guarantee its safe operation, using personal protective equipment if needed� The RECmax-CVM device must be installed by authorised and qualified staff.
RECmax-CVM 3�2�- INSTALLATION While the device is connected, the terminals, opening the cover or removing el- ements can expose parts that are hazardous to the touch� The device must not be used until the installation process is complete� The RECmax-CVM must be installed inside an electric panel or enclosure and mounted on a DIN rail 46277 (EN 50022)�...
RECmax-CVM 3�2�2�- MEASUREMENT OF THE PHASE CURRENT The phase current must be measured using the MC1-75/0�25A (RECmax-CVM 2-pole) or MC3-75/0�25A current transformer (RECmax-CVM 4-pole) supplied with the device� The MC transformer, supplied with a cable and 4-pole connector, must be connected to termi- nals 19, 20, 21 and 22 of the device (see Table 3 The current measurement transformer must be installed on the top of the circuit...
RECmax-CVM Warranty, Once the central part of the seal has been removed, the side section of the seal must remain attached� DO NOT REMOVE this part, it ensures that the insulated busbar at the top of the circuit breaker has not been removed or tampered with� The warranty of the device will be void if the safety seal has been tampered with or removed�...
RECmax-CVM 3�4�- CONNECTION DIAGRAMS 3�4�1�- MEASUREMENT OF SINGLE-PHASE NETWORK: RECmax-CVM 2-POLE C (22) IL3 (21) IL2 (20) IL1 (19) I∆ (2) I∆ (1) Figure 6: Measurement of single-phase network: RECmax-CVM 2-pole� All active conductors that feed the load to be protected, including the neutral, must pass through the internal diameter of the earth leakage transformer�...
RECmax-CVM 3�4�2�- MEASUREMENT OF THREE-PHASE NETWORK: RECmax-CVM 4-POLE Brown/Green C (22) Red/Blue IL3 (21) Green/White IL2 (20) Grey/Pink IL1 (19) I∆ (2) I∆ (1) Figure 7: Measurement of three-phase network: RECmax-CVM 4-poles� All active conductors that feed the load to be protected, including the neutral, must pass through the internal diameter of the earth leakage transformer�...
RECmax-CVM 3�5�- DISCONNECTION OF THE DEVICE If after wiring the RECmax-CVM you decide to have the protected line disconnected, you must disconnect the device manually by pushing the contact lever of the switch downwards and moving the mechanical lock (yellow sealable catch ) upwards�...
RECmax-CVM 4�- OPERATION 4�1�- OPERATING PRINCIPLE RECmax-CVM is a device for protecting single-phase or three-phase electrical installations of up to 63 A in which a high continuity of electrical service must be guaranteed� The device has an automatic reset system after a trip, so it reconnects on its own after a period of time, with the installation recovering power without human operator intervention�...
RECmax-CVM Table 4 (Cont�): Measurement parameters of the RECmax-CVM� Phases Total Parameter Units L1-L2-L3 Maximum Apparent Power Demand M/kVA Parameters displayed� 4�2�- DESCRIPTION OF THE DEVICE Manual locking Display LEDs Reset lever Keyboard Main switch Figure 9: General description of the device� Instruction Manual...
RECmax-CVM 4�3�- KEYBOARD FUNCTIONS The RECmax-CVM has 3 keys, Figure 10 Keyboard Figure 10: Keyboard� TEST, pressing this key causes a forced trip of the earth leakage protection� If the device has already tripped, pressing does not cause any action� Pressing the TEST key disables the automatic reclosing system, as it is considered that the person who performs the local TEST will generate the reset for rearming the protection�...
RECmax-CVM 4�4�- DISPLAY The device has a backlight display with green or red light, according to the status of the device� The backlight is green and in trip conditions it is red under normal operating conditions� PROG Figure 11: RECmax-CVM display� The device display shows different symbols that indicate the operating status of the device: The leakage symbol with the bars is activated when a leakage current is detected�...
RECmax-CVM 4�5�- LED INDICATORS The device has 2 indicator LEDs, � Figure 12 LEDs Figure 12: RECmax-CVM LED indicators� Table 7: Description of the LEDs: Normal operating status� Normal operating status Description Green On: Powered device� Table 8: Description of the LEDs: Trip status� Trip status Description Green...
RECmax-CVM 4�6�- INPUTS The RECmax-CVM has two keys: EXT ON/OFF input (terminals 9 and 10 in ) enables the remote control of the Table 3 main switch, trip or reset of the switch depending on its status� EXT LOCKED locking input (terminals 10 and 11 in ) allows you to disable the Table 3 reset�...
RECmax-CVM Digital output (terminals 7 and 8 in ) can work as an alarm for the measure- Table 3 ment variables, to indicate that they are outside the programmed limits or to generate ” energy pulses, see “ 7.3.11.5. Programming the Digital Output ...
RECmax-CVM 4�10�- TRIP STATUS The device may be tripped due to: Actuation of the protection due to an installation defect, whether the earth leakage protection or protection against overloads or a short-circuit� Manual opening of the main switch, lowering the switch lever� ...
RECmax-CVM PROG Figure 13: Screens after an earth leakage protection trip� If the trip is caused by a fault in the protection due to overloads or a short circuit, a screen will appear indicating the number of reclosing attempts carried out by the circuit breaker� (See Figure 14 “5.2.2.- CIRCUIT BREAKER TRIP”...
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RECmax-CVM In this situation the status indicators are shown in Table 15� Table 15: Trip status: Automatic reclosing is not possible� Trip status: Automatic reclosing is not possible Main Reset lever Green LED Red LED switch Open Down Permanently on (Lever down) REC LOCKED POSITIVE SAFE...
RECmax-CVM 5�- DISPLAY 5�1�- NORMAL OPERATING STATUS In the normal operating status, the device shows 5 information screens on the protection of the device and access to the electrical parameter display screens� Press the PROG key to move between the different screens� Table 16: Display screens: Normal operating status�...
RECmax-CVM shows the electrical parameters display menu� Figure 15 PROG > 3s RESET PROG RESET PROG PROG RESET PROG RESET Figure 15: Electrical parameters display menu� 5�1�1�- VOLTAGE The device measures and displays the voltage of each of the lines, L1, L2 and L3 ( )�...
RECmax-CVM 5�1�2�- CURRENT The device measures and displays the current of each of the lines, L1, L2 and L3 ( )� Figure 17 RESET PROG RESET RESET RESET RESET RESET RESET Figure 17: Current display menu� 5�1�3�- POWER The device measures and displays the power of each of the lines, L1, L2 and L3 ( )�...
RECmax-CVM 5.1.4.- Cos φ The device measures and displays the of each of the lines, L1, L2 and L3 ( )� Cos φ Figure 19 RESET PROG RESET RESET RESET RESET RESET RESET Figure 19: cos display menu� 5�2�- TRIP STATUS When the trip occurs the device shows the display screens in red�...
RECmax-CVM Table 17 (Cont�): Display screens: Earth leakage protection trip� Display screens: Earth leakage protection trip PROG No� of trips which have occurred due to earth leakage protection� Total no� of trips Access to the electrical parameters display screen� Long press (> 3s) the PROG key to access the electrical parameters screen (Figure 15)�...
RECmax-CVM Table 18 (Cont�): Display screens: Circuit breaker trip� Display screens: Circuit breaker trip Access to the electrical parameters display screen� Long press (> 3s) the PROG key to access the electrical parameters screens (Figure 15)� 5�2�3�- TRIPPING WITH THE TEST KEY When tripping the device by pressing the TEST key, the device will display the normal operating status screens, , but instead of displaying the leakage current, it will display the screen...
That is why it is very important that it is adjusted by a trained technician to decide on the most appropriate type of protection in each installation� CIRCUTOR accepts no responsibility for incorrect working of the device due to erroneous adjustment 6�1�- EARTH LEAKAGE PROTECTION...
RECmax-CVM When the value on the screen is the desired value, press the PROG key to jump to the next programming point� If you do not press any key for 10 s, the screen shown in appears and the device Figure 23 opens the Delay and Sensitivity screen, without saving the changes made�...
RECmax-CVM 6�2�- AUTOMATIC RECLOSING To configure the automatic reclosing parameters, press the PROG key for more than 3 seconds, while the Leakage current or Total no� of trips screen is displayed� PROG > 3s PROG PROG RESET RESET RESET PROG PROG RESET RESET PROG PROG RESET Figure 25: Configuration: Automatic reclosing. 6�2�1�- SRD: EARTH LEAKAGE RECLOSING SEQUENCE The reclosing parameters are configured on this screen after an earth leakage protection trip.
RECmax-CVM Table 20 (Cont�): Available sequences (SDR)� SDR: Available sequences DI 7 1 min� 30 min� DI 8 90 s� 30 min� DI 9 2, 4 and 6 min� the rest 15 min� DI 10 3 min� 30 min� DI 11 2, 4, 8, 16 and 32 min�...
RECmax-CVM Press the PROG key to save the selected sequence and exit the setup menu; when exiting, the screen in is displayed for a few seconds� Figure 24 If you do not press any key for 10 s, the screen shown in appears and the device Figure 23 opens the Delay and Sensitivity screen, without saving the changes made� If SRM and SRD have been configured with the number 0 sequence, automatic reclosing will be fully disabled�...
RECmax-CVM STD, the contactor of the REC LOCKED output acts without positive safety� POS, the contactor of the REC LOCKED output acts with positive safety� Press the PROG key to save the selected option and exit the setup menu; when exiting, the screen in is displayed for a few seconds� Figure 24 If you do not press any key for 10 s, the screen in appears and the device opens the Figure 23 Delay and Sensitivity screen, without saving the changes made�...
RECmax-CVM 6�2�6�- FACT: FACTORY CONFIGURATION The factory default Configuration can be restored on this screen. PROG PROG PROG Press the RESET key to move between the different options: NO, the factory values are not restored� YES, the factory values are restored� Selecting the option YES means a total reset, which includes the control pa- rameters for the protection trigger�...
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RECmax-CVM PROG Figure 26: Locking screen Press the RESET key to move between the different options: BL N, removes the Configurations locking BL Y, activates the Configuration locking. Press the PROG key to save the selected option and exit the setup menu; when exiting, the screen in is displayed for a few seconds� Figure 24 If you do not press any key for 10 s, the screen in appears and the device opens the Figure 23 Delay and Sensitivity screen, without saving the changes made�...
RECmax-CVM 7�- RS-485 COMMUNICATIONS RECmax-CVM devices feature one RS-485 communications port� The device has uses the MODBUS RTU communications protocol as the standard protocol� 7�1�- CONNECTIONS The RS-485 cable must be wired with twisted pair cable with mesh shield (minimum 3 wires), with a maximum distance between the RECmax-CVM and the master device of 1200 metres�...
RECmax-CVM 7�2�- MODBUS PROTOCOL In the Modbus protocol, the RECmax-CVM uses the RTU (Remote Terminal Unit) mode� The Modbus functions implemented in the device are as follows: Functions 0x03 and 0x04� Reading integer registers� Function 0x05� Writing a relay� Function 0x10� Writing multiple registers� 7�2�1�...
RECmax-CVM Response: Initial Address Function Value register 0834 FF00 CEEF 7�3�- MODBUS COMMANDS 7�3�1� MEASUREMENT VARIABLES All Modbus map addresses are expressed in hexadecimal� The Functions 0x03 and 0x04 are implemented for these variables� Table 22: Modbus memory map (Table 1) Parameter Symbol Instantaneous...
RECmax-CVM Table 22 (Cont�) : Modbus memory map (Table 1) Parameter Symbol Instantaneous Maximum Minimum Units Voltage L3-L1 42-43 148-149 1A6-1A7 V x 10 Neutral Current N 44-45 14A-14B 1A8-1A9 L1 voltage THD % %THDV1 46-47 14C-14D 1AA-1AB % x 10 L2 Voltage THD % %THDV2 48-49...
RECmax-CVM 7�3�3� VOLTAGE AND CURRENT HARMONICS� All Modbus map addresses are expressed in hexadecimal� The Functions 0x03 and 0x04 are implemented for these variables� Table 24:Modbus memory map (Table 3)� Parameter Voltage L1 Voltage L2 Voltage L3 Units Fundamental Harm� A28-A29 A48-A49 A68-A69...
RECmax-CVM Table 25 (Cont�): Modbus memory map (Table 4)� Parameter Current L1 Current L2 Current L3 Units 8th harmonic % x 10 9th harmonic % x 10 10th harmonic % x 10 11th harmonic % x 10 12th harmonic % x 10 13th harmonic % x 10 14th harmonic...
RECmax-CVM 7�3�5� DELETING PARAMETERS� All Modbus map addresses are expressed in hexadecimal� The Function 0x05 is implemented for these variables� Table 27:Modbus memory map: Deleting parameters� Parameters Address Valid data margin Deleting energy values FF00 Deleting maximum and minimum values FF00 Start of maximum demand FF00...
RECmax-CVM 7�3�8� STATUS OF THE RELAY OUTPUTS All Modbus map addresses are expressed in hexadecimal� The Function 0x04 is implemented for these variables� Table 31:Modbus memory map: Status of the outputs� Parameters Address Valid data margin Status of the outputs C390 The format of the variable is shown in Table 32�...
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RECmax-CVM The Modbus Configuration will not take effect until the device is reset. 7�3�11�1� Transformation ratios� The Function 0x04 is implemented for these variables� Table 35:Modbus memory map: Transformation ratios� Transformation ratios Configuration variable Address Voltage primary 2710 - 2711 Voltage secondary 2712 Current primary 2713 Current secondary 2714 7�3�11�2� Number of quadrants The Function 0x04 is implemented for these variables�...
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RECmax-CVM Table 39:Modbus memory map: Programming the Digital Output� Programming the digital output Default Configuration variable Address Valid data margin value Maximum value or energy pulse 2B0C-2B0D according to variable Minimum value 2B0E-2B0F according to variable Table 40, Table 41 and Table 42 Variable code 2B10 Connection delay...
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RECmax-CVM There are also some parameters ( ) that make reference to the three phases at the Table 42 same time (OR function)� If one of these variables is selected, the alarm will be activated when any of the three phases meets the programmed conditions� Table 42:Codes of the multiple parameters for programming the alarm�...
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RECmax-CVM 7�3�11�8� Sensitivity current IΔn The Functions 0x04 and 0x10 are implemented for this variable� Table 45:Modbus memory map: Sensitivity current Sensitivity current IΔn Configuration variable Address Valid data margin Default value 0: 30 mA 1: 0�1 A Sensitivity current C361 2: 0�3 A 3: 0�5 A...
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RECmax-CVM 7�3�11�12� Enable reclosing The Function 0x04 is implemented for this variable� This variable allows you to enable or not the reclosing of the device� Table 49:Modbus memory map: Enable reclosing Enable reclosing Configuration variable Address Valid data margin Default value 0: No Enable reclosing C391...
RECmax-CVM 8�- TECHNICAL FEATURES Power supply Mode Self-powered (L1-N) 230 V ~ ± 20% Rated voltage Frequency 50 - 60 Hz Maximum power 7 VA Uimp 4kV 4 kV Eearthing systems VT - TN Installation category CAT III 300V Voltage measurement circuit 230 V ~ ±...
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RECmax-CVM Circuit breaker protection Rated current (In) 6 - 10 - 16 - 20 - 25 - 32 - 40 - 50 - 63 A ~ 240 / 415 V ~ Rated voltage (Un) Magnetic trip curves C / D Flexible cable Rigid cable Cross-section...
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RECmax-CVM Communications RS-485 Communications protocol Modbus RTU Baud rate 9600 bauds Stop bits Parity None Peripheral number (default) User interface Display Keyboard 3 keys 2 LEDs Environmental features Operating temperature -10ºC to +55ºC Storage temperature -30ºC ��� +70ºC Relative humidity (without condensation) 5 ���...
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RECmax-CVM Figure 29: Dimensions of the RECmax-CVM 4-pole� Standards General requirements for residual current operated protective devices IEC TR 60755:2008 Electrical accessories - Circuit breakers for overcurrent protection for household and similar installations -- Part 1: Circuit-breakers for a�c� UNE-EN 60898-1:2004 operation Specification for low voltage switchgear and control gear for industrial use�...
• 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”...
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