1. Introduction
The CNC YCT8-M1 and YCT8-M2 are multifunction time relays designed for various industrial and domestic control applications. These DIN rail mountable devices offer 10 selectable time functions and precise time range adjustments, making them versatile for controlling circuits based on time delays. This manual provides essential information for the safe and effective installation, operation, and maintenance of your timer relay.
2. Product Overview
The YCT8-M1/M2 series are compact, high-power time relays featuring a robust design for DIN rail mounting. They are equipped with clear indicators and intuitive controls for function and time setting.
Key Features:
- Multifunctionality: 10 selectable time functions (A-J) to suit diverse application needs.
- Wide Time Range: Adjustable time ranges from 0.1 seconds to 10 days.
- Voltage: Operates on AC 230V (50-60Hz).
- Output: YCT8-M1 features 1 SPDT (Single Pole Double Throw) output, while YCT8-M2 features 2 SPDT outputs, both rated at 16A/AC1.
- Indicators: Green LED for supply indication, Red LED for output status.
- Mounting: Standard 35mm DIN rail mounting.
3. Specifications
| Parameter | Value |
|---|---|
| Model | YCT8-M1 / YCT8-M2 |
| Brand | CNC |
| Power Source | AC |
| Voltage Range | AC 230V (50-60Hz) |
| Supply Voltage Tolerance | -15%; +10% |
| Theory | Time Relay |
| Contact Load | High Power (16A/AC1) |
| Output Type | YCT8-M1: 1 SPDT; YCT8-M2: 2 SPDT |
| Supply Indication | Green LED |
| Output Indication | Red LED |
| Mounting | DIN Rail |
| Dimensions (W x H x D) | 18mm x 90mm x 64mm (approx.) |
4. Installation and Setup
The YCT8-M1/M2 timer relays are designed for easy installation on a standard 35mm DIN rail.
Installation Steps:
- Ensure all power to the circuit is disconnected before installation.
- Locate a suitable position on your DIN rail.
- Align the relay's DIN rail clips with the rail.
- Press the relay firmly onto the DIN rail until it clicks into place.
- Verify that the relay is securely mounted and does not wobble.
5. Operating Instructions
The YCT8-M1/M2 timer relay offers flexible operation through its three front-panel rotary selectors.
Controls and Indicators:
- Un (Green LED): Illuminates when the supply voltage is present.
- R (Red LED): Illuminates when the output relay is activated.
- Function Selector (A-J): Selects one of the 10 available timing functions.
- Time Range Selector: Sets the base time unit (e.g., 10m, 1h, 1d).
- Time Percentage Setting (10-100%): Fine-tunes the delay time within the selected range.
Setting the Timer:
- Select Function: Rotate the top selector to choose the desired timing function (A through J). Refer to the wiring diagram for a visual representation of each function.
- Select Time Range: Rotate the middle selector to choose the appropriate time base (e.g., 10s, 1m, 1h, 1d, 10d).
- Set Time Percentage: Rotate the bottom selector to set the desired percentage of the selected time range (e.g., 50% of 10 minutes would be 5 minutes).
6. Wiring Diagrams
Proper wiring is crucial for the safe and correct operation of the timer relay. Always ensure power is disconnected before making any connections. The terminals are clearly labeled on the device.
- A1, A2: Supply Voltage Input (AC 230V)
- S: Trigger Terminal (for specific functions)
- 15, 16, 18: SPDT Output 1 (Common, Normally Closed, Normally Open)
- 25, 26, 28: SPDT Output 2 (Common, Normally Closed, Normally Open) - Only available on YCT8-M2 model
Note: The diagram illustrates the internal connections and the function of each terminal. Ensure your external wiring matches the intended application and local electrical codes.
7. Maintenance
The YCT8-M1/M2 timer relay is designed for reliable, long-term operation with minimal maintenance. However, periodic checks can help ensure optimal performance.
- Cleaning: Keep the relay free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or overheating.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage to the internal components.
8. Troubleshooting
If you encounter issues with your YCT8-M1/M2 timer relay, consider the following common troubleshooting steps:
- No Power (Green LED Off):
- Check the main power supply to the A1 and A2 terminals.
- Verify that the supply voltage is within the specified AC 230V range.
- Inspect wiring for breaks or loose connections.
- Output Not Activating (Red LED Off when expected):
- Confirm the correct timing function (A-J) is selected.
- Check the time range and percentage settings. Ensure the set time has elapsed.
- If using the 'S' trigger terminal, verify the trigger signal is present and correct.
- Check the load connected to the output terminals (15/16/18 or 25/26/28) for faults or overcurrent.
- Incorrect Timing:
- Re-verify the time range and percentage settings.
- Ensure the selected function matches the desired timing behavior.
If problems persist after these checks, consult a qualified electrician or contact customer support.
9. User Tips
No specific user tips were available from provided reviews or Q&A content.
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your vendor. Keep your purchase receipt as proof of purchase.
