GEYA GRT8-B2 Delay Off Single Function Time Relay

1. Informazioni sulla sicurezza

Please read this manual carefully before installation and operation. Failure to follow these instructions may result in equipment damage, injury, or death. Keep this manual for future reference.

• Rischio elettrico: Installation and maintenance must be performed by qualified personnel only. Disconnect all power before working on the device.
• Voltage Compatibilità: Garantire la fornitura voltage matches the device's specifications (AC230V for this model).
• Cablaggio corretto: Use appropriate wire gauges and ensure all connections are secure to prevent overheating or short circuits.
• Ambiente: Non esporre il dispositivo a umidità, temperature estreme o ambienti corrosivi.

2. Prodotto finitoview

The GEYA GRT8-B2 is a single-function electronic time relay designed for delay-off applications. It features two SPDT (Single Pole Double Throw) output contacts and offers a wide range of adjustable time settings. This relay is suitable for DIN rail mounting and provides visual indication of its status via LED indicators.

Caratteristiche principali:

• Delay can be set directly via panel knobs for convenience.
• Function Mode: Delay OFF (Type B).
• Time scale: 0.1s - 10 days, divided into 10 ranges.
• Volume di fornituratage: AC230V.
• Output contact: 2 SPDT (2NO2NC).
• Stato del relè indicato dal LED.
• 1 MODULO, montaggio su guida DIN.
• Ultra-small size: 18mm width.

Identificazione dei componenti:

The image below illustrates the main components and terminals of the GRT8-B2 time relay.

Figura 2.1: Davanti view of the GEYA GRT8-B2 time relay, showing the trigger terminal (A1, S, A2), supply terminal (Un), LED indicators (Green for Supply, Red for Output), 10 time range selection knob, time percentage setting knob, and output contacts (15, 16, 18 for 1SPDT; 25, 26, 28 for 2SPDT).

3. Configurazione e installazione

Montaggio:

The GRT8-B2 time relay is designed for DIN rail mounting. Ensure the DIN rail is securely installed in a suitable enclosure, away from excessive heat, moisture, and vibration.

Schema elettrico:

Refer to the wiring diagrams below for proper connection of the time relay. Always ensure power is disconnected before making any connections.

Figura 3.1: Wiring diagram for GRT8-B2 (2SPDT) showing connections for supply voltage (Un), trigger (S), and output contacts (15-16-18 and 25-26-28). Also includes physical dimensions.

Figura 3.2: Example wiring diagram for GRT8-B2 showing connection to a trigger switch and a load (signal light). Terminals 15-18 (NO) close on power-on and disconnect after delay. Terminals 15-16 (NC) disconnect on power-on and close after delay.

Connessioni terminali:

• A1(+), A2(-): Volume di fornituratage input (AC230V).
• S: Trigger terminal for external control (e.g., push button).
• 15 aprile, 16 aprile, 18 aprile: First SPDT output contact. 15 is common, 16 is normally closed (NC), 18 is normally open (NO).
• 25 aprile, 26 aprile, 28 aprile: Second SPDT output contact. 25 is common, 26 is normally closed (NC), 28 is normally open (NO).

4. Istruzioni per l'uso

The GRT8-B2 operates in Delay OFF mode (Function B). This means that upon receiving a trigger or power-on, the output contacts will immediately change state, and then revert to their original state after a set delay time.

Impostazione dell'ora:

The delay time is set using two rotary knobs on the front panel:

Figura 4.1: Time setting knobs. Knob 1 selects the delay gear (s, m, h, d, ON, OFF). Knob 2 provides fine adjustment of the delay time from 10% to 100% within the selected range.

• Knob 1 (Time Range Selection): Selects the base time unit (seconds, minutes, hours, days) and the maximum value within that unit. Available ranges include: 0.1-1s, 1-10s, 6-60s, 1-10min, 6-60min, 1-10hr, 0.1-1day, 1-10day. There are also 'only ON' and 'only OFF' settings for continuous operation or immediate disconnection.
• Knob 2 (Time Percentage Setting %): Adjusts the delay time as a percentage (10% to 100%) of the selected time range.

Exampon: To set a 5-minute delay, select the '10m' range with Knob 1 and set Knob 2 to '50%'.

Function Mode B (Delay OFF):

In Delay OFF mode, when power is applied or the trigger (S terminal) is activated, the load connected to the relay's output contacts (e.g., 15-18) will turn ON immediately. After the set delay time has elapsed, the load will turn OFF. If the trigger is held during the delay, the load remains ON until the trigger is released, then the delay starts.

Figura 4.2: Illustration of Delay ON (A) and Delay OFF (B) functions. For Delay OFF (B), after power-up, the light turns on and the relay begins to delay. After the set time (e.g., 10 seconds), the light will turn off.

Dimostrazione operativa:

Watch the video below for a practical demonstration of how to use a GEYA GRT8-B1 (similar to GRT8-B2) off-delay time relay.

5. Manutenzione

The GEYA GRT8-B2 time relay is designed for reliable operation with minimal maintenance. However, regular checks can help ensure its longevity and proper function.

• Ispezione visiva: Ispezionare periodicamente il relè per verificare la presenza di eventuali segni di danni fisici, scolorimento o collegamenti allentati.
• Tenuta del terminale: Ensure all screw terminals remain tight to prevent intermittent connections or overheating.
• Pulizia: Se necessario, pulire delicatamente l'esterno del dispositivo con un panno asciutto e morbido. Non utilizzare detergenti abrasivi o solventi.
• Condizioni ambientali: Verificare che l'ambiente operativo rimanga entro gli intervalli di temperatura e umidità specificati.

6. Risoluzione Dei Problemi

If the GEYA GRT8-B2 time relay is not functioning as expected, consider the following common issues and solutions:

7. Specifiche tecniche

Below are the detailed technical specifications for the GEYA GRT8-B2 Delay Off Single Function Time Relay (AC230V model).

Figura 7.1: Detailed technical parameter table for GRT8-A1/B1 and GRT8-A2/B2 models, highlighting the AC230V specifications.

8. Garanzia e supporto

Informazioni sulla garanzia:

GEYA products are manufactured to high-quality standards and are covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official GEYA websito per termini e condizioni di garanzia dettagliati.

Assistenza clienti:

For technical assistance, troubleshooting, or product inquiries, please contact GEYA customer support through the following channels:

• In linea: Visit the official GEYA websito per FAQ, documentazione sui prodotti e moduli di contatto.
• E-mail: Refer to your product packaging or the GEYA websito per l'indirizzo email di supporto appropriato.
• Telefono: Contact numbers for regional support may be available on the GEYA websito.

When contacting support, please have your product model number (GRT8-B2) and purchase information ready.