Walfront GRT8-M1 Multifunctional Delay Time Relay

1. Okwu mmalite

The Walfront GRT8-M1 is a versatile multifunctional delay time relay designed for various industrial and home automation applications. It offers 10 distinct delay functions and a wide time delay setting range from 0.1 seconds to 10 days. This relay is suitable for controlling electrical appliances, lighting, heating systems, motors, pumps, and fans. Its compact design allows for easy DIN rail mounting.

Akụkụ ndị bụ isi:

• Ultra-wide delay range: 0.1s - 10 days.
• 10 delay functions including delay on, delay off, and cycle delay.
• LED indicators for relay working status.
• Compact 35mm DIN rail mounting.
• Multi-voltage compatibility: AC/DC 12V~240V.

2. Ozi nchekwa

WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified electricians in accordance with all local and national electrical codes.

• Hụ na ewepụla ọkụ eletrik tupu echichi ma ọ bụ rụzie ya.
• Chọpụta voltaji ziri ezitage and current ratings for your application.
• Do not exceed the maximum switching voltage ma ọ bụ ugbu a.
• The product is designed for indoor use in a dry environment.
• Ekwesịrị ikpofu ihe mkpofu ọkụ eletrik niile dabere na ụkpụrụ WEEE dị ugbu a.

3. Ngwaahịa gafereview

The GRT8-M1 delay time relay features a compact housing with clearly labeled terminals and control knobs. It includes LED indicators for power and relay status.

Foto nke 3.1: N'ihu view of the GRT8-M1 Delay Time Relay showing its dimensions (90mm/3.5in length, 64mm/2.5in height, 18mm/0.7in width) and terminal labels (A1, A2, 15, 16, 18). It also highlights the red relay status indicator and green power indicator.

Foto nke 3.2: Agara nso view of the GRT8-M1 relay showing the two rotary knobs for time adjustment and function selection, along with the LED indicators. The diagram illustrates how to set the time range (Knob 1) and percentage (Knob 2).

4. Nkọwapụta

5. Nwụnye

5.1 DIN Rail arịọnụ

The GRT8-M1 is designed for easy mounting on a standard 35mm DIN rail. Simply align the relay with the rail and press firmly until it clicks into place. To remove, pull the red tabs at the bottom of the unit and lift it off the rail.

Foto nke 5.1: The GRT8-M1 Delay Time Relay shown mounted on a standard DIN rail, illustrating its compact form factor and secure attachment method.

5.2 eserese waya

Connect the relay according to the appropriate wiring diagram for your desired function. Ensure all connections are secure and correctly terminated. The terminals are labeled A1, A2 for power input, and 15, 16, 18 for the output contact (15: Common, 16: Normally Closed, 18: Normally Open).

Foto nke 5.2: This image displays the panel diagram of the GRT8-M1, indicating the supply (green) and output (red) indicators, time setting, and function setting knobs. Below it, various wiring diagrams are shown for different contact configurations (1 SPDT).

Foto nke 5.3: A detailed wiring diagram showing the connection points for the GRT8-M1 relay, including the trigger terminal (S), working power input (A1, A2), and output contacts (15, 16, 18). It also illustrates a typical application with a load connected.

6. Ọrụ

The GRT8-M1 features two rotary knobs for setting the time range and the percentage of that range, along with a function selection knob.

6.1 Nhazi oge

The time delay is set using two knobs:

• Knob 1 (Top): Selects the time gear (e.g., 1s, 10s, 1m, 10m, 1h, 10h, 1d, 10d). 'ON' for relay operation (15-18 closed), 'OFF' for relay open (15-16 closed).
• Knob 2 (Bottom): Fine adjustment of the delay time, from 10% to 100% of the selected time gear.

Exampnke 1: To set a 5-second delay:

1. Set Knob 1 to '10s'.
2. Set Knob 2 to '50%'.
3. Calculated delay time = 10s * 50% = 5s.

Exampnke 2: To set an 8-minute delay:

1. Set Knob 1 to '10m'.
2. Set Knob 2 to '80%'.
3. Calculated delay time = 10m * 80% = 8m.

Foto nke 6.1: This image provides a diagram of the GRT8-M1's dimensions and detailed instructions for setting the delay time using the two rotary knobs. It includes examples for calculating the final delay time.

6.2 Nhọrọ ọrụ

The GRT8-M1 offers 10 functions, selected via a rotary switch. Each function has a specific timing diagram:

Foto nke 6.2: A comprehensive diagram illustrating the 10 different operating functions (A-J) of the GRT8-M1 relay. Each function is accompanied by a timing chart showing the relationship between input voltage (Un), trigger signal (S), and relay contact status (R) over time.

• A: On Delay (Power On): Delay starts when input voltage U is applied. Contacts R transfer after delay t.
• B: Interval (Power On): Delay starts when input voltage U is applied. Contacts R transfer immediately and return after delay t.
• C: Repeat Cycle (Starting Off): Delay starts when input voltage U is applied. Contacts R transfer after delay t1, then return after t2. Cycle repeats until U is removed.
• D: Repeat Cycle (Starting On): Delay starts when input voltage U is applied. Contacts R transfer immediately for t1, then return for t2. Cycle repeats until U is removed.
• E: Off Delay (S Break): Ntinye voltage U must be applied continuously. When trigger switch S is closed, relay contacts R change state. When trigger switch S is opened, delay t begins. When delay t is complete, contacts R return to their shelf state.
• F: Single Shot: Mgbe etinyere ntinye voltage U, relay dị njikere ịnakwere mgbaama mkpalite S. Mgbe itinye mgbama mkpata S, mbufe kọntaktị R na-amalite na oge atọrọ t na-amalite. N'oge nkwụsị, a na-eleghara mgbama mkpalite S anya. Relay na-emegharị site n'itinye mgba ọkụ na-akpalite S mgbe agbanyeghị ọkụ na-agbagharị agbagharị.
• G: Single Shot Trailing Edge (Non-Retriggerable): Mgbe etinyere ntinye voltage U, the relay is ready to accept trigger signal S. Upon application of the trigger signal S, the relay contacts R transfer and the preset time t begins. If the trigger switch S is opened and closed prior to time out t (before preset time elapses). Continuous cycling of the trigger switch S at a rate faster than the preset time t will cause the relay contacts R to remain closed. If input voltagE wepụrụ e U, kọntaktị relay R laghachi na ọnọdụ shelf ha.
• H: On/Off Delay: Ntinye voltage U ga-etinyerịrị n'ọrụ mgbe niile. Mgbe emechi mgba ọkụ S, igbu oge t ga-amalite. Mgbe oge igbu oge t zuru, relay kọntaktị R gbanwee steeti ma nọgide na-ebufe ruo mgbe emeghere mgba ọkụ S. Ọ bụrụ ntinye voltagE wepụrụ e U, kọntaktị relay R laghachi na ọnọdụ shelf ha.
• I: Latching Relay: Ntinye voltage U ga-etinyerịrị n'ọrụ mgbe niile. Mwepụta na-agbanwe ọnọdụ na mmechi mgba ọkụ S ọ bụla. Ọ bụrụ na ntinye voltagE wepụrụ e U, kọntaktị relay R laghachi na ọnọdụ shelf ha.
• J: Pulse Generator: Mgbe etinyere ntinye voltage U, a single output pulse of 0.5 seconds is delivered to relay after time delay t. Power must be removed and re-applied to repeat pulse. Trigger switch S is not used in this function.

7. Nlekọta

The Walfront GRT8-M1 delay time relay requires minimal maintenance. Keep the unit clean and free from dust and moisture. Periodically check terminal connections for tightness to ensure reliable operation. Do not attempt to open or repair the unit yourself; refer to qualified personnel for any issues beyond basic troubleshooting.

8. Nchọpụta nsogbu

• Relay not powering on: Lelee ntinye voltage (A1-A2) and ensure it is within the AC/DC 12V~240V range. Verify power connections.
• Relay not switching: Confirm the selected function and time settings are correct. Check trigger signal (S) if applicable. Ensure the load is properly connected to terminals 15, 16, 18.
• Incorrect timing: Re-check Knob 1 (time gear) and Knob 2 (percentage) settings. Ensure the selected time range matches your requirement.
• Ihe ngosi LED anaghị arụ ọrụ: If the green power LED is off, check power supply. If the red relay status LED is off when it should be on, check load and wiring.

If issues persist, consult a qualified electrician or contact customer support.

9. Akwụkwọ ikike na nkwado

For warranty information and technical support, please refer to the product packaging or contact Walfront customer service. Keep your purchase receipt for warranty claims.