Circutor Recmax-cvm series User manual

INSTRUCTION MANUAL

Earth leakage circuit breaker with automatic

reclosing and measurement system

RECmax-CVM

(M175B01-03-17C)

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RECmax-CVM

Instruction Manual

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Instruction Manual

RECmax-CVM

SAFETY PRECAUTIONS

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.

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 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 stan-

dards 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

CIRCUTOR, recommends using the original cables and accessories that are

supplied with the device�

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RECmax-CVM

Instruction Manual

CONTENTS

SAFETY PRECAUTIONS ��3

DISCLAIMER ��3

CONTENTS��4

REVISION LOG��6

SYMBOLS��6

1�- VERIFICATIONS UPON RECEPTION ��7

2�- DESCRIPTION OF THE PRODUCT��7

3�- INSTALLING THE DEVICE ��9

3�1�- PRELIMINARY RECOMMENDATIONS ��9

3�2�- INSTALLATION ��10

3�2�1�- MEASUREMENT OF THE EARTH LEAKAGE CURRENT IΔ��10

3�2�2�- MEASUREMENT OF THE PHASE CURRENT�� 11

3�2�3�- SAFETY SEAL�� 11

3�3�- TERMINALS OF THE DEVICE��12

3�4�- CONNECTION DIAGRAMS ��14

3�4�1�- MEASUREMENT OF SINGLE-PHASE NETWORK: RECmax-CVM 2-POLE ��14

3�4�2�- MEASUREMENT OF THREE-PHASE NETWORK: RECmax-CVM 4-POLE ��15

3�5�- DISCONNECTION OF THE DEVICE ��16

4�- OPERATION ��17

4�1�- OPERATING PRINCIPLE ��17

4�2�- DESCRIPTION OF THE DEVICE ��18

4�3�- KEYBOARD FUNCTIONS��19

4�4�- DISPLAY ��20

4�5�- LED INDICATORS ��21

4�6�- INPUTS ��22

4�7�- OUTPUTS ��22

4�8�- RESET LEVER AND MANUAL LOCKING ��23

4�9�- NORMAL OPERATING STATUS��23

4�10�- TRIP STATUS ��24

4�10�1�- AUTOMATIC RECLOSING IS POSSIBLE ��24

4�10�2�- AUTOMATIC RECLOSING IS NOT POSSIBLE ��25

5�- DISPLAY ��27

5�1�- NORMAL OPERATING STATUS��27

5�1�1�- VOLTAGE ��28

5�1�2�- CURRENT��29

5�1�3�- POWER��29

5.1.4.- Cos φ ��30

5�2�- TRIP STATUS ��30

5�2�1�- EARTH LEAKAGE PROTECTION TRIP ��30

5�2�2�- CIRCUIT BREAKER TRIP��31

5�2�3�- TRIPPING WITH THE TEST KEY ��32

5�2�4�- TRIP DUE TO EXT ON/OFF INPUT ��32

6�- CONFIGURATION ��33

6�1�- EARTH LEAKAGE PROTECTION��33

6�1�1�- ACTIVATION DELAY ��33

6�1�2�- SENSITIVITY CURRENT, IΔN��34

6�2�- AUTOMATIC RECLOSING��35

6�2�1�- SRD: EARTH LEAKAGE RECLOSING SEQUENCE ��35

6�2�2�- SRM: CIRCUIT BREAKER RECLOSING SEQUENCE ��36

6�2�3�- RSTC: PARTIAL METER RESETTING��37

6�2�4�- POLT: CONFIGURATION OF REC LOCKED OUTPUT ��37

6�2�5�- FREQ: NOMINAL FREQUENCY��38

6�2�6�- FACT: FACTORY CONFIGURATION��39

6�3�- LOCKING THE CONFIGURATION ��39

6�3�1�- PHYSICAL LOCKING ��39

6�3�2�- PROGRAM LOCKING��39

7�- RS-485 COMMUNICATIONS��41

7�1�- CONNECTIONS��41

7�2�- MODBUS PROTOCOL��42

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Instruction Manual

RECmax-CVM

7�2�1� READ EXAMPLE: Function 0x04� �� 42

7�2�2� WRITE EXAMPLE: Function 0x05� �� 42

7�3�- MODBUS COMMANDS��43

7�3�1� MEASUREMENT VARIABLES�� 43

7�3�2� ENERGY VARIABLES�� 44

7�3�3� VOLTAGE AND CURRENT HARMONICS� ��45

7�3�4� PROTECTION VARIABLES �� 46

7�3�5� DELETING PARAMETERS� �� 47

7�3�6� FUNCTION OF THE POSITIVE SAVE OUTPUT RELAY� �� 47

7�3�7� STATUS OF THE INPUTS �� 47

7�3�8� STATUS OF THE RELAY OUTPUTS �� 48

7�3�9� DIGITAL OUTPUT STATUS�� 48

7�3�10� DEVICE INFORMATION�� 48

7�3�11� DEVICE CONFIGURATION VARIABLES�� 48

8�- TECHNICAL FEATURES ��54

9�- TECHNICAL SERVICE�� 58

10�- WARRANTY��58

11�- CE CERTIFICATE ��59

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RECmax-CVM

Instruction Manual

REVISION LOG

Table 1: Revision log�

Date Revision Description

10/17 M175B01-03-17A Initial Version

11/17 M175B01-03-17B Changes in the following sections:

7�3�2�- 7�3�11�5�

12/17 M175B01-03-17C Changes in the following sections:

3�3� - 4�7� - 4�9� - 4�10�1� - 4�10�2�

Note: The images of the devices are for illustrative purposes only and might differ from the

original device.

SYMBOLS

Table 2: Symbols�

Symbol Description

In compliance with the relevant European directive�

The device complies with the 2012/19/EC European directive� Do not dispose of the device

in a household waste container at the end of its useful life� Observe the local electronic

device recycling regulations�

Direct current�

~Alternating current�

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Instruction Manual

RECmax-CVM

1�- VERIFICATIONS UPON RECEPTION

The following must be checked upon reception of the device:

 a)Thedevicehasbeensuppliedaccordingtothespecicationsinyourorder.

b) The device has not been damaged during transport�

c) Perform an external visual inspection of the device before connecting it�

d) Check that it has been supplied with the following:

RECmax-CVM 2-pole:

- An installation guide�

- 1 MC1-75/0�25A measuring transformer

- 1 WGC-20SC earth leakage transformer

RECmax-CVM 4-pole:

- 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�

The device is programmable and features a display� It measures the leakage current (earth

leakage protection) and orders the disconnection and reclosing of the circuit breaker (protec-

tion) through a mechanically-operated motor�

There are 2 models available:

RECmax-CVM 2-pole, for single-phase installations�

RECmax-CVM 4-pole, for three-phase installations�

The device features:

- Inputs for the measurement of current and earth leakage current�

- 3 keys that can be used to browse the various screens and program the device�

- 2 Indicator LEDs�

- LCD Display, to view the parameters�

- 2 inputs for remote control and locking�

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RECmax-CVM

Instruction Manual

- 2 alarm outputs�

- 1 output to indicate the status of the main switch�

- 1 digital output�

- RS-485 communications�

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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qualiedstaff.

Disconnect the device from the mains and disconnect the measuring devices before handling,

changing the connections of or replacing the device� Handling the device while it is connected

is hazardous to people nearby�

The cables must be in perfect working order to prevent accidents or injuries to people and/or

damage to the facilities/installations�

Limittheoperationofthedevicetomeasuringthespeciedcurrentorvoltagevalues.

The manufacturer of the device shall not be held responsible for any damage resulting from the

user or installation company failing to observe the warnings and/or recommendations indicated

in this manual nor for any damage resulting from the use of non-original products or accesso-

ries or those from other brands�

Inspect the device before using it� Make sure that there are no cracks and that the housing is

intact�

Do not use the device to take measurements if you detect an anomaly or malfunction�

Check the environment in which the device is installed before taking a measurement� Do not

use the device to take measurements in dangerous, explosive, wet or damp environments�

Disconnect the device from the mains and from the power supply (both the device

and its measuring system) before performing any maintenance work, repairs or

handling any of the connections of the device�

Contact the after-sales service if you detect that the device is not working prop-

erly�

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RECmax-CVM

Instruction Manual

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)�

The device has connection indicator LEDs, indicating the presence of voltage� Even if these

LEDs are not on, the user must still verify that the device is disconnected from all power sup-

plies�

3�2�1�- MEASUREMENT OF THE EARTH LEAKAGE CURRENT IΔ

The earth leakage current must be measured using the WGC earth leakage transformer includ-

ed with the device�

The WGC transformer, supplied with a cable and 2-pole connector,must be connected to ter-

minals 1 and 2 of the device (see Table 3)

It is recommended to place the earth leakage transformer at the bottom of the circuit breaker

(Figure 6 and Figure 7)�

The external earth leakage transformer is necessary for the device to operate

correctly� Even if its installation only appears linked to the correct working

of the earth leakage protection, failing to install it will affect other functions

of the device, such as the reclosing and display of parameters on the REC-

max-CVM display�

An incorrect or faulty connection of the earth leakage transformer means

loss of the earth leakage protection and possible risk of electric shock�

In case of a faulty connection of the earth leakage transformer or if this transformer is not

compatible with the RECmax-CVM, the screen shown in Figure 1 will appear�

REC

Figure 1: Error in the connection of the earth leakage transformer�

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Instruction Manual

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

breaker�

3�2�3�- SAFETY SEAL

The device features a seal on the neutral terminal, see Figure 2�

Figure 2: Safety seal on the neutral terminal�

Thissealfullstwofunctions:

Safety, only the neutral cable must be installed in the sealed terminal�

For this, remove the central part from the seal to the point indicated, leaving the terminal

free to be able to install the neutral cable, see Figure 3�

Figure 3: Remove the central part of the seal�

Wiring any cable that is not Neutral to this terminal may seriously

damage the device, leaving it non-operational�

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Instruction Manual

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�

3�3�- TERMINALS OF THE DEVICE

The RECmax-CVM terminals are distributed between the upper and lower face of the device�

Table 3:List of RECmax-CVM terminals�

Terminals of the RECmax-CVM device

1:EarthleakagecurrentinputIΔ 13: REC LOCKED, REC LOCKED Locking Alarm Output

(NO)

2:EarthleakagecurrentinputIΔ 14: POSITIVE SAVE OUTPUT and REC LOCKED com-

mon output

3: S, RS-485 Communications 15: POSITIVE SAVE OUTPUT, POSITIVE SAVE OUTPUT

Alarm Output (NO)

4: B-, RS-485 Communications 16: BREAKER ON/OFF, BREAKER ON/OFF Output

(Common)

5: A+, RS-485 Communications 17: BREAKER ON/OFF, BREAKER ON/OFF Output (NO)

7: S0-, Digital Output 18: BREAKER ON/OFF, BREAKER ON/OFF Output (NC)

8: S0+, Digital Output 19: 1S1, Current input L1

9: EXT� ON/OFF, EXT ON/OFF Control Input (NO) 20: 2S1, Current input L2 (RECmax-CVM 4-pole model)

10: EXT LOCKED and EXT ON/OFF common output 21: 3S1, L3 current input ( RECmax-CVM 4-pole model)

11: EXT LOCKED, EXT LOCKED locking input (NO) 22: C, Common connector for current measurement

1 2

16 17 18

19

20

21

22

Figure 4:RECmax-CVM terminals, upper face�

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Instruction Manual

RECmax-CVM

9

10

11

13

14

15

3

4

5

7

8

Figure 5:RECmax-CVM terminals, lower face�

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Instruction Manual

3�4�- CONNECTION DIAGRAMS

3�4�1�- MEASUREMENT OF SINGLE-PHASE NETWORK: RECmax-CVM 2-POLE

L1 N

IL1 (19)

IL2 (20)

IL3 (21)

C (22)

I∆ (1)

I∆ (2)

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� Do

not pass the protective conductor or the earth wire�

The current measurement transformer must be installed at the top of the cir-

cuit breaker�

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Instruction Manual

RECmax-CVM

3�4�2�- MEASUREMENT OF THREE-PHASE NETWORK: RECmax-CVM 4-POLE

Brown/Green

Grey/Pink

Green/White

Red/Blue

L1L2L3 N

3P1 2P1 1P1

3P2 2P2 1P2 IL1 (19)

IL2 (20)

IL3 (21)

C (22)

I∆ (1)

I∆ (2)

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� Do

not pass the protective conductor or the earth wire�

The current measurement transformer must be installed on the top of the cir-

cuit breaker�

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Instruction Manual

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 Figure 8) upwards� This eliminates any pos-

sibility of accidental reclosing

Figure 8: Mechanical lock�

Never manually lower the circuit breaker without previously enabling the me-

chanical lock (moving the yellow sealable catch, Figure 8, upwards)� This pre-

vents accidental reclosing while handling the installation� When doing this the

device is still powered so precautions must be taken to avoid touching live

parts�

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Instruction Manual

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�

The basic functions of the RECmax-CVM are:

Earth leakage protection (protecting people against electric shock and property against the

riskofre)

Protection against overloads and short-circuits with a circuit breaker�

Measurement and display of electrical parameters, see Table 4�

Table 4: Measurement parameters of the RECmax-CVM�

Parameter Units Phases

L1-L2-L3

Total

III N

Phase-neutral voltage (1) Vph-N 

Phase-phase voltage Vph-ph 

Current(1) A 

Frequency Hz 

Active power (1) M/kW  

Apparent Power M/kVA  

Inductive Reactive Power M/kvarL  

Capacitive Reactive Power M/kvarC  

Power factor PF  

Cosφ(1) φ 

Voltage THD % % THD V 

Current THD % % THD A 

Harmonic Breakdown - Voltage

(up to the 31st harmonic) harm V 

Harmonic Breakdown - Current

(up to the 31st harmonic) harm V 

Total Active Energy M/kWh 

Total Inductive Reactive Energy M/kvarLh 

Total Capacitive Reactive Energy M/kvarCh 

Total Apparent Energy M/kVAh 

Active Energy generated M/kWh 

Inductive Reactive Energy generated M/kvarLh 

Capacitive Reactive Energy generated M/kvarCh 

Apparent energy generated M/kVAh 

Maximum Current Demand A  

Maximum Active Power Demand M/kW 

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Instruction Manual

Table 4 (Cont�): Measurement parameters of the RECmax-CVM�

Parameter Units Phases

L1-L2-L3

Total

III N

Maximum Apparent Power Demand M/kVA 

(1) Parameters displayed�

4�2�- DESCRIPTION OF THE DEVICE

Reset lever

Main switch

Manual locking

Display

LEDs

Keyboard

Figure 9: General description of the device�

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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�

RESET, the function of the key depends on the status of the device:

Table 5: Operation of the RESET key�

Key Operation

RESET

Normal operating status

Displayofthehomescreenofthedevicewithdescriptionofthermware

model and version�

Trip status

System restart and reclosing the device�

Conguration

Browsing the setup menu�

JumpingbetweenthedifferentCongurationoptions.

PROG, the function of the key depends on how long it is pressed� The PROG key is

physically sealable, see “6.3.1.- PHYSICAL LOCKING”.

Table 6: Operation of the PROG key�

Key Operation

PROG

Short press (< 3 s)

Savestheconguredvaluesandexitsthesetupmenu.

Long press ( > 3 s)

Accesses the setup menu

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Instruction Manual

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�

td s

A

I n

REC

+

PROG N

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�

The number of bars is proportional to the instantaneous value of the leakage current,

scaledwithrespecttothetripcurrentIΔn.

td s

A

I n

REC

+

PROG N

The REC symbol is displayed when automatic reclosing is possible�

The +symbol indicates that the REC LOCKED locking alarmisconguredforposi-

tive safety�

td s

A

I n

REC

+

PROG N

The PROG symbol is displayed on the setup screens of the device�

td

mAI n

REC

td s

A

I n

REC

+

PROG N

Circutor RECmax-CVM series User manual

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