1. Inngangur
The CNC YCT8-M series multifunction time delay relay is designed for various electrical control applications, offering precise timing functions for appliances, heating, motors, pumps, and fans. This series includes models YCT8-M1 and YCT8-M2, both featuring 10 selectable time ranges and multiple function choices, suitable for DIN rail mounting.


2. Öryggisupplýsingar
VIÐVÖRUN: Hætta á raflosti. Uppsetning og viðhald ætti aðeins að vera framkvæmt af hæfu starfsfólki.
- Aftengdu alltaf rafmagnið áður en tækið er sett upp eða viðhaldið.
- Gakktu úr skugga um að allar raflagnir séu öruggar og í samræmi við gildandi rafmagnsreglugerðir.
- Ekki nota tækið ef það virðist skemmt.
- Tækið er hannað til notkunar innandyra í hreinu og þurru umhverfi.
3. Vörueiginleikar
- 10 time functions controlled by supply voltage.
- 4 time functions controlled by control input.
- 1 function of latching relay.
- Þægileg og vel skipulögð virkni og tímasviðsstilling með snúningsrofum.
- Time scale 0.1 s - 10 days divided into 10 ranges.
- Staða gengis er sýnd með LED.
- 1-MODULE DIN rail mounting.

4. Uppsetning og uppsetning
4.1 Uppsetning
The YCT8-M series time delay relay is designed for DIN rail mounting (EN/IEC 60715). Ensure the DIN rail is securely installed in your electrical enclosure.

4.2 Raflögn
Refer to the wiring diagram below for proper connection. Ensure all connections are tight and correct before applying power.

- A1, A2: Supply Terminals (AC230V)
- S: Trigger Terminal
- 15, 16, 18: 1SPDT Output (16A/AC1) - Common, Normally Closed, Normally Open
- 25, 26, 28: 2SPDT Output (for YCT8-M2 only) - Common, Normally Closed, Normally Open
- Un (Green LED): Supply Indication
- R (Red LED): Úttaksvísir

Max. Cable Size: Solid wire max. 1x2.5mm² or 2x1.5mm² (AWG 12) with sleeve max. 1x2.5mm².
5. Notkunarleiðbeiningar
5.1 Time Range Selection
The device offers 10 time ranges, selectable via the top rotary switch. The ranges span from 0.1 seconds to 10 days.
- 10s (0.1s - 10s)
- 1m (0.1m - 10m)
- 10m (0.1m - 10m)
- 1h (0.1h - 10h)
- 10h (0.1h - 10h)
- 1d (0.1d - 10d)
- 10d (0.1d - 10d)
- ON (Continuous ON)
- OFF (Continuous OFF)
5.2 Time Percentage Stilling
The middle rotary switch allows for fine-tuning the time within the selected range, from 10% to 100% of the maximum value of the chosen time range.
5.3 Val á virkni
The bottom rotary switch selects one of the 10 available functions (A-J). Each function defines how the relay operates based on supply voltage (Un) and trigger input (S).

- A: On Delay (Power On)
Við beitingu inntaks binditage Un, the relay is applied, timing delay t begins. Relay contacts R change state after time delay is complete. Contacts R return to their shelf state when input voltage Un is removed. Trigger switch S is not used in this function. - B: External (Power On)
Þegar inntak binditage Un is applied, relay contacts R change state immediately and timing cycle begins. When time delay is complete, contacts return to shelf state. When input voltage Un is removed, contacts will also return to their shelf state. Trigger switch S is not used in this function. - C: Repeat Cycle (Starting Off)
Þegar inntak binditage Un is applied, time delay t begins. When time delay t is complete, relay contacts R change state for time delay t. This cycle will repeat until input voltage Un is removed. Trigger switch S is not used in this function. - D: Repeat Cycle (Starting On)
Þegar inntak binditage Un is applied, relay contacts R change state immediately and time delay t begins. When time delay t is complete, contacts return to their shelf state for time delay t. This cycle will repeat until input voltage Un is removed. Trigger switch S is not used in this function. - E: Off Delay (S Break)
Inntak binditage Un must be applied continuously. When trigger switch S is closed, relay contacts R change state immediately. When trigger switch S is opened, time delay t begins. When time delay t is complete, then time is reset. When trigger switch S is opened, the delay begins again, and relay contacts R remain in their energized state. If input voltage Un is removed, relay contacts R return to their shelf state. - F: Single Shot
Við beitingu inntaks binditage Un, 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. During time-out the trigger signal S is ignored. The relay resets by applying the trigger switch S when the relay is not energized. - G: Single Shot Trailing Edge (Non-Retriggerable)
Við beitingu inntaks binditage Un, 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. At the end of the preset time t, the relay contacts R return to their normal condition unless the trigger switch S is opened and closed prior to time out t (before preset time elapsed). 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 Un is removed, relay contacts R return to their shelf state. - H: On/Off Delay
Inntak binditage Un must be applied continuously. When trigger switch S is closed, time delay t begins. When time delay t is complete, relay contacts R change state and remain transferred until trigger switch S is opened. If input voltage Un is removed, relay contacts R return to their shelf state. - I: Latching Relay
Inntak binditage Un must be applied continuously. Output changes state with every trigger switch S closure. If input voltage Un is removed, relay contacts R return to their shelf state. - J: Pulse generator
Við beitingu inntaks binditage Un, a single output pulse of 0.5 seconds is activated. If delay after time delay t. Power must be removed and re-applied to repeat pulse. Trigger switch S is not used in this function.
6. Viðhald
The YCT8-M series time delay relay is designed for long-term, reliable operation with minimal maintenance. However, periodic checks are recommended:
- Ensure the device is free from dust and debris. Use a soft, dry cloth for cleaning.
- Athugið reglulega allar raflagnatengingar hvort þær séu þéttar og hvort þær séu merki um slit eða tæringu.
- Staðfestið að rekstrarumhverfið sé innan tilgreindra hitastigs- og rakastigsmarka.
Aftengdu alltaf rafmagnið áður en viðhald er framkvæmt.
7. Bilanagreining
If the time delay relay is not functioning as expected, consider the following:
- No Power Indication (Green LED Off):
- Athugið aðalrafmagnstenginguna við tengipunktana A1 og A2.
- Gakktu úr skugga um framboð voltage is within the specified range (AC230V, -15% to +10%).
- Output Not Activating (Red LED Off/Incorrect):
- Verify the selected function (A-J) and ensure the trigger conditions (supply voltage, trigger S) are met.
- Check the time range and percentage stillingar.
- Inspect the load connected to the output terminals (15, 16, 18 or 25, 26, 28) for proper operation and current draw within specifications.
- Ensure the trigger terminal 'S' is correctly wired and functioning for functions that require it.
- Ónákvæm tímasetning:
- Confirm the time range and percentage settings are correctly configured.
- Ensure the operating temperature is within the specified range.
If problems persist after checking these points, contact technical support.
8. Tæknilýsing
The following table details the technical parameters for the YCT8-M1 and YCT8-M2 models:

| Parameter | YCT8-M1 | YCT8-M2 |
|---|---|---|
| Virka | A,B,C,D,E,F,G,H,I,J | A,B,C,D,E,F,G,H,I,J |
| Birgðastöðvar | A1-A2 | A1-A2 |
| Voltage svið | AC/DC 12-240V (50-60Hz) | AC/DC 12-240V (50-60Hz) |
| Byrði | AC 0.09-3VA/DC 0.05-1.7W | AC 0.09-3VA/DC 0.05-1.7W |
| Rafmagnsinntak | AC max. 6VA/1.3W | AC max. 6VA/1.9W |
| Framboð binditage umburðarlyndi | -15%; +10% | -15%; +10% |
| Framboðsvísir | græn LED | græn LED |
| Tímabil | 0.1s - 10 days, ON, OFF | 0.1s - 10 days, ON, OFF |
| Tímastilling | potentiometer | potentiometer |
| Frávik tíma | 10% - mechanical setting | 10% - mechanical setting |
| Endurtaktu nákvæmni | 0.2% - set value stability | 0.2% - set value stability |
| Hitastuðull | 0.05%/°C, at=20°C (0.05%°F, at=68°F) | 0.05%/°C, at=20°C (0.05%°F, at=68°F) |
| Framleiðsla | 1XSPDT | 2XSPDT |
| Núverandi einkunn | 1X16A (AC1) | 2X16A (AC1) |
| Skipti voltage | 250VAC/24VDC | 250VAC/24VDC |
| Min. breaking capacity DC | 500mW | 500mW |
| Úttaksvísir | rauð LED | rauð LED |
| Vélrænt líf | 1x107 | 1x107 |
| Electrical life (AC1) | 1x105 | 1x105 |
| Endurstilla tíma | max. 200ms | max. 200ms |
| Rekstrarhitastig | -20°C til +55°C (-4°F til 131°F) | -20°C til +55°C (-4°F til 131°F) |
| Geymsluhitastig | -35°C til +75°C (-22°F til 158°F) | -35°C til +75°C (-22°F til 158°F) |
| Festing/DIN teinn | Din rail EN/IEC 60715 | Din rail EN/IEC 60715 |
| Verndunargráðu | IP40 fyrir framhlið/IP20 tengi | IP40 fyrir framhlið/IP20 tengi |
| Rekstrarstaða | hvaða | hvaða |
| Yfirvoltage flokkur | III. | III. |
| Mengunargráðu | 2 | 2 |
| Max. cable size (mm²) | solid wire max. 1x2.5 or 2x1.5, with sleeve max. 1x2.5 (AWG 12) | solid wire max. 1x2.5 or 2x1.5, with sleeve max. 1x2.5 (AWG 12) |
8.1 Mál


9. Notendaráð
Based on general usage of similar devices, here are some tips:
- When setting the time, start with a shorter range and gradually increase if needed to avoid overshooting your desired delay.
- For critical applications, always test the chosen function and time settings thoroughly before deploying in a live system.
- Consider the ambient temperature, as extreme conditions can slightly affect timing accuracy.
No specific user tips were available from provided customer reviews or Q&A.
10. Ábyrgð og stuðningur
For warranty information, technical support, or service inquiries, please contact the manufacturer or your local distributor. Keep your purchase receipt and product model number (YCT8-M1 or YCT8-M2) handy when contacting support.