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Y403-11-L Wireless Switch Controller User Manual
1. Product Wiring Methods
1.1 Power Wiring
The product has two power supply options:
DC 9-36V Power Supply: Refer to the selection table for specific product models. The terminals marked "+" represent positive pole and "-" represent negative pole. If using our matching power adapter, connect the red wire to "+" and the black wire to "-".
AC 120V-240V Power Supply: The terminals marked "L" represent Live wire and "N" represent Neutral wire. No power adapter needed, connect 220V power directly to "L" and "N" terminals respectively.
Note: Low voltage during DC power supply may cause device not to start. Use proper power supply (DC 9-36V).
Power Wiring Diagram
Mark: DC 9-36V positive/negative terminals (red/black), AC 120-240V L/N terminal wiring positions
Device Overall Appearance
Mark: Main body, antenna interface, wiring terminal area, LED indicator area
1.2 Input Wiring
The input uses optocoupler switch design, with "Input" and "Common" interfaces reserved externally. Shorting Input and Common with a passive switch will generate a closed signal. Refer to the following connection methods based on the type of switch used:
Mark: Passive switch wiring, NPN sensor wiring, PNP sensor + intermediate relay conversion wiring
Note: NPN type switches can be connected directly. PNP type requires an intermediate relay. When multiple inputs are used, the common terminal is shared.
1.3 Output Wiring
The output is a dry relay contact (no voltage). Maximum load: AC 250V 5A or DC 28V 5A.
- For loads under 1KW (direct connection): Load (<1KW) ↔ Y403-11-L
- For loads over 5A (use contactor): Load >5A → Contactor Coil → Contactor Contact → Y403-11-L Output
Output States:
- When activated: NO connects to COM, NC disconnects from COM
- When deactivated: NC connects to COM, NO disconnects from COM
Output Wiring Diagrams
Mark: <1KW load direct wiring, >5A load contactor wiring, NO/COM/NC terminal connection
2. LED Indicator Instructions
2.1 LED Indicators Table
| LED | Color | On | Blinking | Off |
|---|---|---|---|---|
| Work | Red | Normal operation | Unstable voltage | No power/ fault |
| Link | Red | Connected successfully | Weak signal/connecting | Not connected |
| Input | Green | Input active (switch closed) | - | No input |
| Output | Green | Output active (relay ON) | - | Output OFF |
2.2 Terminal Connections
| Terminal | Label | Description |
|---|---|---|
| Power | DC 9~36V+ / L / N | For DC power connect +/-; For AC power connect L(Live)/N(Neutral) |
| Antenna | SMA | Connect LoRa antenna (tighten securely) |
| Input | DI & COM | Connect passive switch or NPN signal (PNP requires intermediate relay) |
| Relay Output | NO | Normally Open - closes when activated |
| COM | Relay Common | |
| NC | Normally Closed - opens when activated |
3. Safety Precautions
3.1 Installation Requirements
- Mounting: Mount on standard 35mm DIN rail
- Environment: Keep away from direct sunlight and heat sources
- Location: Avoid humid, dusty, or explosive environments
- Interference: Stay away from large metal objects and complex signal interference sources
3.2 Antenna Safety
- Place antenna in open area
- Mount vertically, about 2 meters above ground
- Keep away from large metal equipment
- Never install antenna inside metal enclosure
- Ensure antenna is tightened securely
Frequency Range: Must be within 398-525 MHz for optimal performance. Exceeding this range will affect transmission and reception performance.
3.3 Electrical Safety
- Use proper power supply (DC 9-36V or AC 120-240V)
- Do not reverse polarity for DC power (reverse protection built-in)
- For AC power, ensure correct wiring of L(Live) and N(Neutral)
- Do not spill liquids on device
- Do not disassemble device
- Never connect voltage sources directly to input terminals
- For loads exceeding 5A, use an external contactor
3.4 Important Notes
- Real-time applications: This is a half-duplex device. Signal timing may vary in complex environments. Not suitable for time-critical applications.
- Antenna frequency: Must be within 398-525 MHz range for optimal performance.
- Input safety: The input uses optocoupler isolation design and accepts only passive dry contacts or NPN signals. PNP type sensors must use an intermediate relay for conversion. Never connect voltage sources directly to input terminals, as this will damage the device.
- Output current: For loads exceeding 5A, always use an external contactor.
4. Troubleshooting Guide
4.1 Problem: Link LED keeps blinking
Possible causes:
- Antenna not connected or loose
- Signal too weak (obstacles between nodes)
- Devices not powered on
Solutions:
- Ensure antennas are connected on all devices
- Relocate antennas to more open area
- Reduce obstacles between antennas
- Check power supply
4.2 Problem: Input LED not lighting when switch connected
Possible causes:
- Using voltage source instead of dry contact
- Using PNP sensor without intermediate relay
- Loose wiring
- Damaged input (if voltage was applied)
Solutions:
- Verify input is passive (no voltage) or using correct sensor type (NPN direct, PNP requires relay)
- Check connections
- If input was damaged by voltage, device needs repair
4.3 Problem: Output LED on but load not working
Possible causes:
- Load exceeds 5A rating
- Wrong wiring (NO vs NC)
- Load circuit issue
Solutions:
- Use contactor for loads over 5A
- Verify you're using NO (Normally Open) terminal for activation
- Check load circuit
4.4 Common Exception Checklist
| Symptom | Check Point | Solution |
|---|---|---|
| Device not powering on | Power supply voltage | Ensure DC 9-36V or AC 120-240V |
| No wireless connection | Antenna connection | Tighten antenna, reduce obstacles |
| Input not responding | Switch type | Use dry contact, NPN, or PNP with relay |
| Output not working | Load current | Use contactor if >5A |
| Intermittent operation | Signal strength | Reposition antenna |
4.5 Additional Troubleshooting Notes
- If using active signal source:
- The input uses optocoupler isolation design and accepts only passive dry contacts or NPN signals
- PNP type active signals must be converted using an intermediate relay
- Connecting voltage directly to input will damage the device
- If signal is weak:
- Adjust antenna position near window or outside
- Reduce obstacles between sending and receiving devices
- Ensure antennas are vertical and at least 2m high
For technical support, please contact your supplier. Specifications subject to change without notice.