CIRCUTOR S�A�U� reserves the right to make modifications to the device or the unit specifications set out in this instruction manual without prior notice. CIRCUTOR S�A�U� on its web site, supplies its customers with the latest versions of the device specifi- cations and the most updated manuals.
RGU-10A , RGU-100A REVISION LOG Table 1: Revision log� Date Revision Description 11/22 M359B01-03-22A First Version Changes in the following sections: 01/23 M359B01-03-23A 8.1. Changes in the following sections: 03/23 M359B01-03-23B 2.- 3.4.2. - 7. - 7.3. - 8. - 9. - Annex A - Annex B SYMBOLS Table 2: Symbols�...
If any problem is noticed upon reception, immediately contact the transport com- pany and/or CIRCUTOR's after-sales service. 2 - PRODUCT DESCRIPTION The RGU-10A /RGU-100A is a type-A ultraimmunised earth leakage protection and monitoring relay that is compatible with the earth leakage transformers in the WGC range. The device features: - Display for showing the parameters.
The RGU-10A /RGU-100A device must be installed by authorised and qualified staff. The power supply plug must be disconnected and measurement systems switched off before handling, altering the connections or replacing the device.
LED is off, the user still needs to verify that the device is disconnected from any power supply. The RGU-10A /RGU-100A has to be connected to a power circuit that is protected with a circuit-break- er or equivalent device to disconnect the device from the mains supply.
RGU-10A , RGU-100A Figure 7: Position of the clamping clips� 3�5�2 INSTALLATION ON A DIN RAIL For installation on a DIN rail, two support brackets are provided with the device, see Figure 8 Figure 8: WGC support brackets� The steps to ensure proper installation are:...
RGU-10A, RGU-100A 3�5�3 DISTRIBUTION OF THE CONDUCTORS IN THE WGC All the active conductors that feed the loads or part of the installation where earth leakage protection or monitoring is required must pass through the WGC transformer associated with the RGU-10A / RGU-100A.
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RGU-10A , RGU-100A Figure 13:Incorrect distribution of conductors� The elbows of the conductors passing through the WGC must be avoided, both at inlet (before feed- through) and outlet (after feed-through),Figure 14. L> Figure 14:Avoid elbows in conductors� Instruction Manual...
The measurement is a true RMS value, taken by using a residual current input from an external measurement toroidal transformer of the WGC series. The RGU-10A /RGU-100A can be used to program and adjust all the parameters required to obtain complete protection and control of the installation.
RGU-10A , RGU-100A Estado / State Figure 17: RGU-10A/RGU-100A LED indicators� 4�3 - DISPLAY The device has a backlit LCD display that is split into two areas ( Figure 18 Data area Unit and status areas Figure 18: RGU-10A/RGU-100A display areas�...
An Individual test has been carried out, see “5.3 - TEST SCREEN”. An error has been detected, see "5.5 - ERROR SCREEN" 4�4 - KEYBOARD FUNCTIONS The RGU-10A /RGU-100A has 3 keys to browse through the different screens and program the device. Function of the keys ( Table 8 Table 8: Function of the keys on display screens�...
RGU-10A , RGU-100A 4�5 - RELAY The RGU-10A /RGU-100A has 2 output relays, an R1 trip relay and an R2 pre-alarm relay ( Figure 19 to configure the parameters of the trip relay and "6 - DIRECT ADJUSTMENTS" "7.1 - PRE-ALARM RE- to configure the parameters of the pre-alarm relay.
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If the R1 trip relay is tripped, when a voltage is applied to the TRIP/RESET digital input, the RGU-10A/ RGU-10A/RGU-100A disparado Tripped RGU-10A/RGU-100A RGU-100A indicates that there has been a trip, and when the voltage is no longer applied to the digital input, the R1 relay resets, Figure 22...
RGU-10A , RGU-100A 5 - DISPLAY When starting the device, the home screen is displayed, showing the version of the device, Figure 23 and after 13 seconds the display screen is shown. Figure 23: Home Screen� Note: If the key is pressed, the device goes directly to the display screen.
Screen with information on the device version. Press the key to see the version of the RGU-10A/RGU-100A. 5�2 - TRIP DISPLAY SCREENS If a trip has been generated, the main display screen will be shown in red, the Alarm LED will be lit in red and the last cycle current that tripped the relay will be displayed.
RGU-10A , RGU-100A 5�3 - TEST SCREEN A test can be done to verify the proper functioning of the relay. T for > 3s while the main display screen is shown. To do this, press the key is displayed. And the Alarm LED is lit in...
RGU-10A, RGU-100A Use keys to skip through the different options. Configuration values Table 9:Configuration values: Lock� Lock YES, the device is locked. Possible values NO, the lock on the device is deactivated. Hold down the key for > 3s, to validate the data and exit the programming.
RGU-10A , RGU-100A 6.- DIRECT ADJUSTMENTS The trip current and trip delay can be configured from the main display screen. To do this, press key Trip current > Delay and relay curve Figure 28: Direct settings� Note: If the device is locked, the direct settings cannot be modified and the screen shows the symbol .
RGU-10A, RGU-100A To skip to the next programming point, press once the key Hold down the key for > 3s, to validate the data and exit the programming. 6�2 - DELAY AND RELAY CURVE This screen is used to configure the delay of the relay trip or the type of trip curve.
To enter the configuration menu, we must display the Events screen and press the key Note: If the device is locked, , the menu cannot be accessed. The device configuration on the RGU-10A /RGU-100A is organised into 2 or 3 menus, Figure 29 Pre-alarm Relay >...
RGU-10A, RGU-100A Pre-alarm current > < > Delay of the > pre-alarm relay < > > Pre-alarm operation > < > Pre-alarm polarity > Figure 31: Pre-alarm relay configuration menu� 7�1�1 - PRE-ALARM CURRENT This screen is used to configure the current at which the pre-alarm will be activated according to the % of the relay's trip current.
RGU-10A , RGU-100A 7�1�2 - DELAY OF THE PRE-ALARM RELAY This screen is used to configure the delay of the pre-alarm relay trip, in seconds. Press the key to enter edit mode, the programming value flashes. Use the keys to skip through the different options.
RGU-10A, RGU-100A 7�1�4�- POLARITY The polarity of the pre-alarm relay is configured in this section. Press the key to enter edit mode, the programming value flashes. Use the keys to skip through the different options. Configuration values Table 15:Configuration values: Polarity�...
RGU-10A , RGU-100A 7�2�1 - POLARITY The polarity of the trip relay is configured in this section. Press the key to enter edit mode, the programming value flashes. Use the keys to skip through the different options. Configuration values Table 16:Configuration values: Polarity�...
RGU-10A, RGU-100A 7�3�- COMMUNICATIONS Note: Menu only available on the RGU-100A model. shows the initial screen of the RS-485 communications menu. Press the key to access Figure 34 the menu. Figure 34: Communications menu� shows the RS-485 communications configuration menu.
RGU-10A , RGU-100A Configuration values Table 18:Configuration values: Peripheral number� Peripheral number Minimum value Maximum value Hold down the key for > 3s to validate the data and exit edit mode. To skip to the next programming point, press once the key 7�3�2�- BAUD RATE...
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RGU-10A, RGU-100A Configuration values Table 20:Configuration values: Data bits / Parity / Stop bits� Data bits / Parity / Stop bits 8N1, 8 data bits, no parity, 1 stop bit. 8E1, 8 data bits, even parity, 1 stop bit.
RGU-10A , RGU-100A 8.- RGU-100A: RS-485 COMMUNICATIONS The RGU-100A has an RS-485 communications port. The device is equipped with the MODBUS RTU communication protocol as standard. 8�1�- CONNECTIONS The RS-485 cable must be wired using twisted pair cable with mesh shield (minimum 3 wires), with a maximum distance of 1200 meters between the RGU-100A and the master unit.
361A Firmware version (part 2) Unit [16] 361B Firmware version revision Unit [16] 361C Function 0x02 is used for these variables. Table 23: Modbus Memory Map: RGU-100A status� Parameter Format Address Value 0: Deactivated Pre-alarm activated by leakage current bool...
RGU-10A , RGU-100A 8�3�2�- TRIPPING DUE TO TEST OR COMMUNICATIONS Función 0x05 is used for these variables. Table 24: Modbus Memory Map: tripping due to test or communications� Tripping due to test or communications Default Parameter Format Address Valid data range...
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RGU-10A, RGU-100A 8�3�3�3�- Trip Relay Configuration Table 27: Modbus Memory Map: Trip Relay Configuration� Trip Relay Configuration Configuration Default Format Address Valid data range parameter value 0: standard polarity Trip Relay Polarity Unit [16] 37DC 1: positive polarity 0: 30 A...
RGU-10A , RGU-100A 9- TECHNICAL FEATURES 9�1 - RGU-10A / RGU-100A AC Power supply RGU-10A RGU-100A Rated voltage 230 V ~ ± 15% 110 ... 230 V Frequency 50... 60 Hz Consumption 6.5 VA Installation category CAT III 300V Monitoring features...
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Pollution degree Indoor Mechanical features Terminals: A1, A2, 1 ... 8, 19, 20 2.5 mm ≤ 0.4 Nm, M2.5 Flat Cable from WGC to RGU-10A / RGU-100A Maximum length Dimensions Figure 37 (mm) Weight 186 g Enclosure Self-extinguishing V0 plastic Standards Low-voltage switchgear and control gear�...
RGU-10A , RGU-100A 9�2 - WGC Measurement circuit Type Passant Network frequency 45... 60 Hz Assigned transformation ratio (Kn) 30 / 0.06 A Differential Current measurement circuit Scale range Scale found Display resolution 30 mA 75 mA ± 1 mA...
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RGU-10A, RGU-100A (Continued) Mechanical features WGC 80 4 x 120 mm WGC 110 4 x 240 mm WGC 140 8 x 185 mm WGC 180 8 x 240 mm WGC 220x105 220 x 115 4 x 100 x 10 mm...
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RGU-10A , RGU-100A Table 29: WGC 20 and WGC 30 Weight� Weight Model Weight WGC 20 60 g WGC 30 70 g Figure 40: WGC 25 and WGC 35 dimensions (in mm)� Ø Ø Figure 41: WGC 55, WGC 80, WGC 110, WGC 140 and WGC 180 dimensions (in mm)�...
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RGU-10A, RGU-100A Figure 42: WGC 220x105, WGC 350x150 and WGC 500x200 dimensions (in mm�)� Table 31: WGC 220x105, WGC 350x150 and WGC 500x200 dimensions� Dimensions (in mm) and Weight Model Weight WGC 220x105 54,2 3.740 kg WGC 350x150 50,2 7.800 kg WGC 500x200 11.300 kg...
RGU-10A , RGU-100A 10 - MAINTENANCE AND TECHNICAL SERVICE In the case of any query in relation to device operation or malfunction, please contact the CIRCUTOR S�A�U� Technical Support Service. Technical Assistance Service Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona) Tel: 902 449 459 (Spain) / +34 937 452 919 (outside of Spain) email: sat@circutor.com...
RGU-10A , RGU-100A ANNEX A - DIRECT SETTINGS mA mA mA mA mA Trip current < > .A 30mA > A A .A .A .A .A 0. N Delay and relay curve < > (A1) Possible values if the trip current limit has been set ("7�2�2 - TRIP CURRENT LIMIT") to 30A�...
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