1. Introducció
This manual provides comprehensive instructions for the safe and effective use of the GEYA GRV8-01 DC12V Single Phase Voltage Monitoring Relay. This device is designed to monitor DC12V power supplies for overvoltage o undervoltage conditions, protecting connected equipment by disconnecting the circuit when voltage deviates from set thresholds. Please read this manual thoroughly before installation and operation.
2. Informació de seguretat
- La instal·lació i el manteniment només els ha de dur a terme personal qualificat.
- Assegureu-vos que el subministrament elèctric estigui desconnectat abans de realitzar qualsevol cablejat o manteniment.
- Verifiqueu que totes les connexions siguin segures i correctes segons el diagrama de cablejat.
- Do not operate the device in environments exceeding its specified operating temperature or humidity ranges.
- This device is for voltage monitoring and protection; it is not a circuit breaker. Additional overcurrent protection may be required.
3. Producte acabatview
The GEYA GRV8-01 is a compact, single-phase voltage monitoring relay designed for DIN rail mounting. It features adjustable overvoltage (U>) or undervoltage (U<) thresholds, adjustable hysteresis (H), and an adjustable time delay (Tt). LED indicators provide visual feedback on the device's status.
- Controls its own supply voltage: Utilizes True RMS measurement for accurate monitoring.
- User-selectable operation mode: Choose between overvoltage o undervoltage protection via a knob.
- Alta precisió: Voltage measurement accuracy is less than 1%.
- Indicadors LED: Green LED (Un) indicates supply voltage presence, Red LED (R) indicates relay status.
- Disseny compacte: Ultra-small size (18mm width) for efficient space utilization on a 35mm DIN rail.
Figura 3.1: Frontal view of the GEYA GRV8-01 DC12V Voltage Monitoring Relay, showing the adjustment knobs and LED indicators.
Figure 3.2: Component overview of the GRV8-01, highlighting supply/monitoring terminals, LED indicators, function selection, voltage setting, hysteresis ratio, and adjustable time delay.
4. Especificacions
The following table details the technical specifications for the GEYA GRV8-01 DC12V model.
Figure 4.1: Detailed technical parameters for the GRV8-01 and GRV8-02 models.
| Paràmetre | Value (GRV8-01) |
|---|---|
| Funció | Seguiment voltage (Over or Under Voltage) |
| Supply Terminals | A1-A2 |
| Vol. d'oferta nominaltage | DC12V |
| Rated Supply Frequency | 0 (DC) |
| Histèresi | 5%-20% ajustable |
| Supply Indication | LED verd |
| Time Delay (Tt) | Adjustable 0.1s-10s, 10% |
| Error de mesura | <1% |
| Run Up Delay at Power Up | 0.5s time delay |
| Knob Setting Accuracy | 10% of scale value |
| Restablir l'hora | 1000 ms |
| Coeficient de temperatura | 0.05%/°C, at=20°C (0.05%/°F, at=68°F) |
| Sortida | 1SPDT (Single Pole Double Throw) |
| Valoració actual | 10A/AC1 |
| Switching Voltage | 250VAC/24VDC |
| Min. Breaking Capacity DC | 500 mW |
| Indicació de sortida | LED vermell |
| Vida mecànica | 1 × 107 |
| Electrical Life (AC1) | 1 × 105 |
| Temperatura de funcionament | -20 °C a +55 °C (-4 °F a 131 °F) |
| Temperatura d'emmagatzematge | -35 °C a +75 °C (-22 °F a 158 °F) |
| Mounting/DIN Rail | DIN rail EN/IEC 60715 |
| Grau de Protecció | IP40 per panell frontal/terminals IP20 |
| Overvoltage Categoria | III |
| Grau de contaminació | 2 |
| Max. Cable Size (mm²) | Solid wire max. 1x2.5 or 2x1.5 / with sleeve max. 1x2.5 (AWG 12) |
| Dimensions | 90 × 18 × 64 mm |
5. Instal·lació
5.1 Muntatge
The GRV8-01 is designed for easy installation on a standard 35mm DIN rail. Simply clip the device onto the DIN rail in your electrical enclosure.
Figura 5.1: Angle view of the GRV8-01, illustrating its compact size and suitability for DIN rail mounting.
5.2 Cablejat
Connect the device according to the wiring diagram provided. Ensure all connections are tight and correctly terminated to prevent loose contacts and potential hazards.
- Supply/Monitoring Terminals (A1, A2): Connect the DC12V power supply to these terminals. The device monitors its own supply voltage.
- Contactes de sortida (11, 12, 14): The GRV8-01 features a 1SPDT (Single Pole Double Throw) relay output.
- Terminal 11: Common (COM)
- Terminal 12: Normally Closed (NC)
- Terminal 14: Normally Open (NO)
Figure 5.2: Wiring diagram for the GRV8-01, showing connections for supply (A1, A2) and relay output (11, 12, 14).
Figura 5.3: superior view of the GRV8-01, clearly indicating the A1(+), A2(-) supply terminals and the 11, 12, 14 output terminals.
6. Funcionament
The GRV8-01 features three adjustable knobs for setting the monitoring parameters: Function (U>/U<), Voltage Threshold (U), Hysteresis (H), and Time Delay (Tt).
6.1 Configuració de paràmetres
Use a small screwdriver to carefully adjust the knobs to your desired settings.
- Function Knob (U>/U<): Selects whether the relay monitors for overvoltage (U>) or undervoltage (U<).
- Voltage Threshold Knob (U): Sets the specific voltage level at which the relay will trigger. For the DC12V model, this range is typically 9-15V.
- Hysteresis Knob (H): Ajusta el percentatgetage difference between the trigger voltage and the reset voltage. This prevents rapid cycling of the relay when the voltage fluctuates near the threshold. The GRV8-01 has an adjustable hysteresis of 5%-20%.
- Time Delay Knob (Tt): Sets the delay (0.1s to 10s) before the relay activates or deactivates after a voltage event. This helps prevent nuisance tripping from momentary voltage fluctuacions.
Figure 6.1: Visual guide for adjusting the function, voltage threshold, hysteresis, and time delay knobs on the GRV8-01.
6.2 Modes de funcionament
The GRV8-01 operates in either overvoltage o undervoltage mode, with non-locking or locking behavior depending on the specific application and settings.
Figure 6.2: Diagrams illustrating the operational behavior of the GRV8-01 in overvoltage (non-locking/locking) and undervoltage (non-locking/locking) modes.
7. Manteniment
The GEYA GRV8-01 is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure longevity:
- Regularly inspect the device for any signs of physical damage or overheating.
- Ensure all terminal connections remain tight. Loose connections can lead to poor performance or damage.
- Mantingueu el dispositiu net i lliure de pols i brutícia. Feu servir un drap sec i suau per netejar-lo. No utilitzeu netejadors líquids.
- Verifiqueu que l'entorn operatiu es mantingui dins dels rangs de temperatura i humitat especificats.
8. Solució De Problemes
If you encounter issues with your GRV8-01 relay, consider the following common problems and solutions:
- Device not powering on (Green LED off):
Check the DC12V supply voltage als terminals A1 i A2. Assegureu-vos que el volumtage is within the operational range. Verify wiring connections. - Relay not activating/deactivating as expected:
- Review your set voltage threshold (U), hysteresis (H), and time delay (Tt) settings.
- Confirm the function knob (U>/U<) is set correctly for overvoltage o undervoltagSeguiment.
- Measure the actual supply voltage to verify it crosses the set threshold.
- Check the load connected to the output contacts (11, 12, 14) for proper operation and current draw within the relay's rating.
- Relay cycling rapidly:
Increase the hysteresis (H) setting to provide a wider band between the trigger and reset points, or increase the time delay (Tt) to filter out momentary fluctuations. - Red LED (R) not indicating correctly:
The Red LED indicates the status of the output relay. If it does not correspond to the expected relay state based on voltage conditions and settings, re-check all parameters and wiring.
If problems persist after following these steps, contact GEYA customer support or a qualified electrician.
9. Garantia i Suport
GEYA products are manufactured to high-quality standards. This product comes with a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms, please refer to the documentation included with your purchase or visit the official GEYA weblloc.
For technical support, product inquiries, or warranty claims, please contact GEYA customer service through their official channels. When contacting support, please have your product model (GRV8-01 DC12V) and purchase information readily available.