Circutor RGU-10, RGU-10C Instruction Manual

INSTRUCTION MANUAL

Electronic earth leakage protection relay

RGU-10, RGU-10C

(M98203201-03-18A)

RGU-10, RGU-10C

Instruction Manual

RGU-10, RGU-10C

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 standards 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.

RGU-10, RGU-10C

Instruction Manual

CONTENTS

SAFETY PRECAUTIONS ��3 DISCLAIMER �� 3 CONTENTS �� 4 REVISION LOG ��5 SYMBOLS �� 5 1�- VERIFICATIONS UPON RECEPTION ��6 2�- DESCRIPTION OF THE PRODUCT �� 6 3�- INSTALLING THE DEVICE ��8

3�1�- PRELIMINARY RECOMMENDATIONS ��8 3�2�- INSTALLATION ��9

3�2�1�- INSTALLATION OF DEVICE IN PANEL ��9

3�3�- TERMINALS OF THE DEVICE ��10

3�4�- CONNECTION DIAGRAMS �� 11

3�4�1�- CONNECTION WITH CURRENT EMISSION COIL �� 11

3�4�2�- CONNECTION WITH UNDERVOLTAGE COIL ��16

3�4�3�- CONNECTING THE DEVICE IN POSITIVE SAFETY �� 19

4�- OPERATION �� 21

4�1�- DESCRIPCIÓN GENERAL �� 21 4�2�- DESCRIPTION OF THE DEVICE �� 22 4�3�- LEDs INDICATORS �� 22 4�4�- KEYBOARD FUNCTIONS ��23 4�5�- DISPLAY �� 24 4�6�- OPERATION �� 25 4�7�- TROUBLESHOOTING OR REASONS FOR TRIPPING �� 26

4�7�1�- POOR TOROID CONNECTION TRIP ��26

4�7�2�- PRE-ALARM TRIP ��26 4�7�3�- FAULT TRIP ��27

4�7�4�- REMOTE TRIP �� 27

5�- CONFIGURATION ��28

5�1�- DIRECT SETTING ��28

5�1�1�- SETTING THE SENSITIVITY TRIP ��28

5�1�2�- DELAY SETTING AND MAIN RELAY CURVE ��28

5�1�3�-POSITIVE SECURITY SETTING OF THE MAIN RELAY �� 29

5�1�4�- SETTING THE PRE-ALARM RELAY �� 29 5�2�- SETTING BY SETUP ��31 5�3�- CONFIGURATION THE MEASUREMENT SETUP �� 32

5�3�1�- OPERATING FREQUENCY ��32

5�3�2�- SCALE LIMIT ��33 5�4�- CONFIGURATION THE COMMUNICATION SETUP �� 33

5�4�1�- PERIPHERAL NUMBER ��34

5�4�2�- BAUD RATE ��34

5�4�3�- PARITY ��35

6�- RS-485 COMMUNICATIONS ��36

6�1�- CONNECTIONS �� 36 6�2�- MODBUS PROTOCOL ��37

6�2�1� READ EXAMPLE: Function 0x04� ��37

6�2�2� WRITE EXAMPLE : Function 0x10� �� 38 6�3�- MODBUS COMMANDS ��38

7�- TECHNICAL FEATURES ��40 8�- TECHNICAL SERVICE ��42 9�- WARRANTY ��42 10�- CE CERTIFICATE �� 43

Instruction Manual

RGU-10, RGU-10C

REVISION LOG

Table 1: Revision log�

Date Revision Description

5/18 M98203201-03-18A New Version

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.

RGU-10, RGU-10C

Instruction Manual

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:

- An installation guide.

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

The RGU-10 earth leakage relay is type A programmable electronic earth leakage protection device with two independent relays: the main output for checking the cut off device and performing the protection function and the pre-alarm relay for installation prevention and maintenance.

Allows the setting and adjustment of all parameters required for complete protection and maintenance checking in the installation. A series of parameters may be set directly from the keyboard (buttons) and by setting menus on the device itself.

Before starting the earth leakage device carefully read sections: power supply, connection diagram and setting.

The RGU-10 measures, calculates and displays the earth leakage current in three-phase, balanced or unbalanced industrial systems.

Measurements are in true effective value, via one earth leakage current input, from the WGC family external measuring toroid.

Under normal operating conditions the main values determining earth leakage protection in an installation are shown on the display. These include sensitivity, delay and instant current leakage. Bearing in mind the high degree of protection required by installations, the device has a display

Instruction Manual

RGU-10, RGU-10C

and LED indicators for the different events which usually occur.

Datadisplayedorpre-alarmindication,trips,leakagereadings,etc.assistinprovidingsufcient

information for proper maintenance.

Under normal operating conditions the backlit display is green. However, after any event causing a main relay to trip, the backlight is red, indicating the reason.

The version for RS-485 communications (RGU-10C) and appropriate software allows setting, data and information to centralised for the proper monitoring and checking of the maintenance of electricity lines.

The measurement of earth leakage current from which the RGU-10/RGU-10C operates by indicating the instant leakage current, pre-alarm or trip is determined by the WGC series earth leakagetransformers.Theinnerdiameterofthetransformerisdenedbytheinstallation’swiring dimensions.

There are 2 models of the device:

  RGU-10, without communications.

 RGU-10C, with communications RS-485.

Main features:

- Measuring in true effective value (TRMS)

- Type A differential (IEC 61008.1)

- Insulation against transients (IEC 61008.1)

 -Highfrequencyltering(IEC61008.1)  -Tripsettingbetween80and100%I∆n

- Inverse curve (IEC 61008.1)

- Associated standard : IEC 61008.1, IEC755

- 3 modules. DIN rail. In a panel using front accessory

- Displaying instant leakage values.

- Backlit LCD display.

- RGU-10C Model : Built-in RS485 communications (Modbus RTU®).

RGU-10, RGU-10C

Instruction Manual

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 RGU-10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 accessories or those from other brands.

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 properly.

Instruction Manual

RGU-10, RGU-10C

3.2.- INSTALLATION

While the device is connected, the terminals, opening the cover or removing elements can expose parts that are hazardous to the touch. The device must not be used until the installation process is complete.

The device is installed on a DIN rail or on a panel (drilled panel 67+1 x 67+1mm, according to DIN 43 700 using accessory). All connections must remain inside the electrical board.

3�2�1�- INSTALLATION OF DEVICE IN PANEL

A 72x72 mm front adapter accessory is used to install the device on a panel. All connections must remain inside the electrical board.

The front adapter accessory has a base, a frame two tabs and three screws, Figure 1.

Figure 1:Adapter accessory�

The steps to follow to perform the installation of the adapter accessory are:

1�- The base is mounted on top of the device.

2�- The device is attached by screwing the holes in the device on the upper right corner and

lower left corner on the front of device.

3�- The front frame is attached to cover the mounting points.

4�- Three green pressure tabs on the side runners of the base are attached.

5�- The device is mounted in the hole in the panel with the adapter.

6�- The tabs run towards the panel to obtain the mounting pressure.

RGU-10, RGU-10C

Instruction Manual

Figure 2: Installation of adapter accessory

3.3.- TERMINALS OF THE DEVICE

Table 3:Terminal description RGU-10�

Terminals of the device 1: Voltage input ON/OFF external L 9: Toroid current input 1S2 2: Voltage input ON/OFF external N 10: Power supply voltage input A1 4: Output common contact pre-alarm 11: Power supply voltage input A2 5: NC output contact pre-alarm 13: NO output contact trip 6: NO output contact pre-alarm 14: NC output contact trip 8: Toroid current input 1S1 15: Output common contact trip

Note: Terminals 3, 7 and 12 are free.

Figure 3: RGU-10 terminals�

Instruction Manual

RGU-10, RGU-10C

3.4.- CONNECTION DIAGRAMS

Note : It is recommended that meshed cable is used to connect the toroid over large distances.

3�4�1�- CONNECTION WITH CURRENT EMISSION COIL

3�4�1�1�- Powering the device before the breaking device

In the event of powering the device before the breaking device (automatic switch) in an earth leakage trip situation because of a fault, test or toroid error:

1�- Note the cause of the trip on the red display. 2�- Reset the breaking device. 3�- Press the RESET device.

NL1 L2

1S1

1S2

Type

WGC

1S 1

1S 2

Reset

Test

1 2 4

5 6 8 9

UTILIZACIÓN

USE

ON / OFF externo

External ON / OFF

Disparo por BOBINA DE EMISIÓN

- Rearme Manual

Trip by SHUNT COIL

- Manual reclose

Figure 4: 24 �� 230 Vac power supply

RGU-10, RGU-10C

Instruction Manual

L1 L2

1S1

1S2

Type

WGC

1S 1

1S 2

Reset

Test

1 2 4

5 6 8 9

UTILIZACIÓN

USE

Reset exterior

External Reset

Disparo por BOBINA DE EMISIÓN

- Rearme Manual

Trip by SHUNT COIL

- Manual reclose

Figure 5: 400 Vac power supply

Instruction Manual

RGU-10, RGU-10C

3�4�1�2�- Powering the device after the breaking device

The following has to be taken into consideration in the event of powering device after the breaking device.

1�- The breaking device has to be a manually resettable device. 2�- After dripping, the device is disconnected losing all information on the reasons for the trip.

The system is reset only by resetting the breaking device. It is reconnected by the power supply.

NL1 L2

1S1

1S2

Type

WGC

1S 1

1S 2

Reset

Test

1 2 4

5 6 8 9

UTILIZACIÓN

USE

ON / OFF externo

External ON / OFF

Disparo por BOBINA DE EMISIÓN

- Rearme Automático mediante corte de alimentación

Trip by SHUNT COIL

- Automatic reclose by power supply out

Figure 6: 24 �� 230 Vac power supply

RGU-10, RGU-10C

Instruction Manual

L1 L2

1S1

1S2

Type

WGC

1S 1

1S 2

Reset

Test

1 2 4

5 6 8 9

UTILIZACIÓN

USE

Disparo por BOBINA DE EMISIÓN

- Rearme Automático mediante corte de alimentación

Trip by SHUNT COIL

- Automatic reclose by power supply out

Reset exterior

External Reset

Figure 7: 400 Vac power supply

The device operates to its maximum whenever it is supplied from the installation itself before the breaking device or from an independent auxiliary power supply. However if the power supply from the installation is below the breaking device the system continues to be properly protected even though with limitations in terms of its disconnection performance through lack of power supply.

+ 32 hidden pages

Circutor RGU-10, RGU-10C Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual