1. Product Overview
The YF-7 Multifunctional Dual Channel Delay Relay Module is a versatile timing control device designed for various applications. It features a wide time range from 0.01 seconds to 999 minutes and can control DC or AC loads up to 5A. With 32 commonly used functions, it is suitable for controlling solenoid valves, water pumps, motors, light strips, and more.
Figure 1: YF-7 Dual Channel Delay Relay Module
Figure 2: Module highlighting voltage compatibility (DC 7-30V, AC 220V)
2. Safety Information and Precautions
- Read Instructions: Always read all instructions carefully before using this product and keep this manual for future reference.
- Intended Use: Do not use the product for any purpose other than its intended use. Misuse may cause injury, damage to the product, or other hazards.
- Children Safety: Keep this product out of the reach of children under 3 years, unless under direct adult supervision. Small parts may cause a choking hazard. Not suitable for children under 36 months.
- Disassembly: Do not disassemble, modify, or repair the product yourself. Unauthorized disassembly or repair by non-professionals is strictly prohibited. Improper operation may cause electric shock, fire, or product failure. Contact professional maintenance personnel if needed.
- Power Safety: Before use, ensure the power outlet is intact and undamaged.
- Prevent Dropping: Avoid dropping the product from elevated positions to prevent damage.
- Avoid Moisture: Do not use the product outdoors during rain or in high-humidity environments. Avoid contact with liquids to prevent electric shock.
- Cleaning: Unplug the power supply when not in use or during cleaning.
- Disposal: Dispose of the product and its packaging in accordance with EU WEEE (Waste Electrical and Electronic Equipment) Directive 2012/19/EU and RoHS Directive 2011/65/EU. Do not discard as household waste.
3. Setup and Installation
- Unpacking Inspection: After opening the package, verify that the product is complete and undamaged. Ensure all components are present.
- Installation: Correctly install product components following the wiring instructions provided in this manual.
- Wiring Port Description:
Port Description + Input power positive terminal. - Input power negative terminal. IN+ Positive signal input terminal. IN- Negative signal input terminal. NO Relay Normally Open interface. The relay is suspended before it is closed, and it is shorted to COM after it is closed. COM Relay Common interface. NC Relay Normally Closed interface. Short-circuit with COM before the relay is closed, and hang in the air after being closed.
Figure 3: Top view of the YF-7 module with labeled components
4. Operating Instructions
Power on the device and operate it according to the instructions provided. The module supports 32 functions (P-11 to P-48), which can be set arbitrarily. Any parameters set are memorized after power off.
Signal 1 corresponds to Relay 1, and Signal 2 corresponds to Relay 2. The two channels can be triggered simultaneously, independently, and do not affect each other. Each signal indicator corresponds to its respective relay.
Function List (P-11 to P-48):
- P-11: Jog - Signal relay pulls in; relay stops when signal disappears.
- P-12: Self-locking - Signal relay turns on once; turns off with another signal.
- P-13: Signal Trigger (Fixed Delay) - Relay closes on signal, automatically stops after A seconds. Triggering is invalid during delay.
- P-14: Signal Trigger (Retriggerable Delay) - Relay closes on signal, automatically stops after A seconds. Triggering during delay restarts timing.
- P-15: Signal Trigger (Superposition Delay) - Relay closes on signal, automatically stops after A seconds. Triggering during delay adds to timer.
- P-16: Signal Trigger (Reset Delay) - Relay closes on signal, automatically stops after A seconds. Triggering during delay resets the timer.
- P-17: Signal Disconnect Delay - Relay closes on signal. When signal disconnects, timing A seconds starts. Relay turns off after A seconds. Signal output is maintained during delay.
- P-18: Power-on Delay Off - After power-on, relay closes immediately, turns off after A seconds. Stays off until next power-on.
- P-21: Signal Delay On - On signal, after A seconds delay, relay closes.
- P-22: Signal Duration On - On signal for more than A seconds, relay closes. Relay stops when signal disappears.
- P-23: Signal Disappearance Delay On - After signal disappears for more than A seconds, relay closes. Relay stops when signal disappears again.
- P-24: Signal On, Signal Disappearance Off - On signal, after A seconds, relay closes. After signal disappears for more than A seconds, relay stops.
- P-25: Signal On, Second Signal Off - On signal, after A seconds, relay closes. On another signal for more than A seconds, relay stops.
- P-26: Signal On/Off Delay - On signal, relay closes for A seconds then stops. When signal disappears, relay closes again for A seconds then stops.
- P-27: Pulse Signal On/Off - If pulse signal, relay stops. If no pulse signal, relay closes for A seconds. (Continuous signal or signal disappearance is considered no pulse signal).
- P-28: Power-on Delay On - After power-on, after A seconds delay, relay closes until power is off.
- P-31: Infinite Loop (A On, B Off) - After power-on, relay closes for A seconds, disconnects for B seconds, infinite loop. Power off stops.
- P-32: Signal Controlled Infinite Loop - On signal, starts P-31 infinite loop. When signal disappears, loop terminates.
- P-33: Dual Signal Controlled Infinite Loop - First signal starts P-31 infinite loop. Second signal terminates loop.
- P-34: Power-on Delay On/Off - After power-on, relay closes after A seconds delay, stops after B seconds.
- P-35: Signal Delay On/Off - On signal, after A seconds delay, relay closes. Stops after B seconds.
- P-36: Signal On/Off with Clear - On signal, after A seconds, relay closes. After B seconds, relay stops. Signal disappears, timer clears and stops.
- P-37: Signal Triggered A+B Cycle - On signal, relay closes for A seconds then stops. After stopping, counts for B seconds. Signal trigger invalid within A+B time.
- P-38: Signal Triggered A-B-A Cycle - On signal, relay closes for A seconds then stops. After stopping, counts for B seconds, then closes again for A seconds.
- P-41: Signal Disappearance Trigger - No action on signal. Triggers when signal disappears. Relay disconnects after A time delay.
- P-42: Signal Disappearance Delay Work - Signal disappears. After A seconds delay, relay works. Works for B time then ends.
- P-43: Signal Disappearance Extended Delay Work - Signal disappears. After A time exceeds, relay works. Works for B time then ends.
- P-44: Multi-Pulse Trigger - After receiving signal more than A times, relay closes for B seconds and stops.
- P-45: Power-on Dual Relay Sequential - After power-on, Relay 1 works for A seconds then disconnects. Relay 2 works for B seconds then disconnects.
- P-46: Signal Dual Relay Sequential - On Signal 1, Relay 1 works for A seconds then disconnects. Relay 2 works for B seconds then disconnects.
- P-47: Signal Dual Relay Overlap - On Signal 1, Relay 1 works for A seconds. Relay 2 starts working. After B seconds, both Relays 1 and 2 disconnect.
- P-48: Power-on Dual Relay Complex Cycle - After power-on, Relay 1 works for A seconds and disconnects. Stops for B seconds. Relay 2 works for C seconds and disconnects. Stops for D seconds.
5. Specifications
| Feature | Detail |
|---|---|
| Product Model | YF-7 |
| Input Voltage | DC 7~30V |
| Output Power | Controls DC or AC load within 5A |
| Time Range | 0.01 seconds to 999 minutes (adjustable) |
| Functions | 32 commonly used functions (P-11 to P-48) |
| Memory | Parameters are memorized after power off |
| Dimensions (Approx.) | 6 cm (Length) x 4 cm (Width) x 1 cm (Height) |
| Weight (Approx.) | 0.049 kg |
6. Maintenance
- Cleaning: Wipe off surface dust or stains promptly after use with a soft, dry cloth. Do not use liquids or harsh chemicals.
- Storage: When not in use, store the product in a dry, well-ventilated location, away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the product from elevated positions to prevent damage to internal components.
7. Troubleshooting
- Device Not Powering On: Ensure the input voltage is within the specified range (DC 7-30V) and the power connections (+ and - terminals) are correctly made and secure. Check the power outlet for functionality.
- Relay Not Activating: Verify that the signal input (IN+ and IN-) is correctly connected and the signal is being provided as per the selected function (P-xx). Check the load connections (NO, COM, NC) for proper wiring.
- Incorrect Timing: Review the selected function (P-xx) and ensure the delay time (A, B, C, D) is set correctly. The module memorizes settings, so ensure previous settings are not interfering.
- Unexpected Behavior: If the module behaves unexpectedly, power cycle the device. If issues persist, re-check all wiring and function settings. Avoid unauthorized disassembly or repair.
8. Warranty and Support
For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the manufacturer. Do not attempt to repair the device yourself, as this may void the warranty and pose safety risks.
A detailed user manual in PDF format is available for download: View User Manual (PDF)
