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Y301 ControlLink Series User Manual
Applicable models: Y301-220, Y301-222, Y301-440, Y301-444, Y301-880.
- Y301-220/222 Specification | Technical Manual
- Y301-440/444 Specification | Technical Manual
- Y301-880 Specification | Technical Manual
ControlLink Series are I/O modules with both digital inputs and relay outputs. All models include DI and DO channels for equipment monitoring, remote control, and local automation. The Y301-222 and Y301-444 also provide analog inputs for voltage or current sensors.
Product Overview
ControlLink Series connect to PLCs, gateways, or data loggers via serial communication using Modbus-RTU protocol. These modules fit applications requiring both acquisition and control, such as pumps, fans, valves, lighting, alarms, and environmental sensor integration.
Key features:
- All models include DI and DO channels for integrated acquisition and control.
- RS485 communication standard; RS232 and TTL available on selected models.
- Power supply range: DC 5~36V.
- Digital inputs support both dry and wet contacts.
- Relay outputs control valves, lights, alarms, and contactor coils.
- Y301-222 and Y301-444 include analog inputs for 0~10V, 0~5V, or 4~20mA sensors.
- DIN-rail or screw mounting for control panels and field installations.
Model Selection
| Product | Model | DI | DO | AI | Recommended Use |
|---|---|---|---|---|---|
 | Y301-220 | 2 | 2 | 0 | Small-scale control and monitoring |
 | Y301-222 | 2 | 2 | 2 | Mixed switch, relay, and sensor applications |
 | Y301-440 | 4 | 4 | 0 | Multi-channel digital acquisition and control |
 | Y301-444 | 4 | 4 | 4 | Combined digital and analog acquisition |
 | Y301-880 | 8 | 8 | 0 | High-density digital acquisition and relay control |
Selection guide:
- Choose Y301-220 for basic DI + DO requirements.
- Choose Y301-222 when you need sensor acquisition with device control.
- Choose Y301-440 for 4 inputs and 4 outputs.
- Choose Y301-444 for combined digital and analog control.
- Choose Y301-880 for 8 inputs and 8 outputs.
Default Parameters
| Parameter | Default Value |
|---|---|
| Communication protocol | Modbus-RTU |
| Device address | 1 |
| Baud rate | 9600 bps |
| Data bits | 8 |
| Stop bits | 1 |
| Parity | None |
| DI debounce time | 50 ms |
| DI pulse counting mode | Rising edge |
| DO output state hold | Soft reboot retention |
| Power supply | DC 5~36V |
Notes:
- Each device on the same RS485 bus must have a unique address.
- Changes to device address and baud rate typically require a restart.
- If communication fails, check the address, baud rate, A/B line polarity, and GND connection.
Hardware Interfaces (Y301-444 Example)
The Y301-444 includes 4 DI, 4 DO, and 4 AI channels, serving as a representative example for the ControlLink Series.
| Interface Area | Terminal | Description |
|---|---|---|
| Power | V+, V- | Module power supply: DC 5~36V |
| Communication | A, B, GND | RS485 communication terminals |
| DI Input | DI1~DI4, DICOM | Digital input terminals for switches, buttons, or contact signals |
| DO Output | COMn, NOn, NCn | Relay output terminals; n indicates channel number |
| AI Input | A1~A4, GND | Analog input terminals; Y301-222 and Y301-444 only |
| DIP Switch | SW1~SW5 | Address offset configuration; see technical manual for details |
| Reload Button | Reload / Reset | Restores default parameters or restarts; see manual for button timing |
DO terminal definitions:
COM: Common terminal.NO: Normally open; disconnects from COM when relay is off, connects when on.NC: Normally closed; connects to COM when relay is off, disconnects when on.
Installation and wiring notes:
- Power off before wiring.
- Use shielded twisted pair for communication lines. Add 120Ω termination resistors at both ends of long RS485 runs.
- Add flyback diodes, RC snubbers, or surge protection when driving inductive loads.
- Do not exceed relay contact ratings: AC 277V / 10A or DC 28V / 10A.
DI Wiring Diagram
DI channels collect signals from switches, buttons, level sensors, limit switches, and other discrete sensors.
Wiring notes:
- Dry contact input: Connect the switch or passive contact between DI and the common terminal.
- Wet contact input: Connect the external DC 5~36V signal to DI and the common reference to DICOM / GND.
- DI channels only collect signals; they do not power external devices.
DO Wiring Diagram
DO channels provide relay contact outputs, commonly used to control valves, lights, alarms, and contactor coils.
Wiring notes:
- Relay contacts do not output voltage; external load power is required.
- The typical control method routes the load power line or positive terminal through COM and NO.
- Use COM and NC for normally-on applications.
- For AC high-voltage loads, have a qualified electrician perform the wiring with proper insulation, protection, and fuses.
AI Wiring Diagram
AI channels apply only to models with analog input: Y301-222 and Y301-444.
Wiring notes:
- Two-wire sensors common for 4~20mA current loops; follow the sensor datasheet for series connection.
- Three-wire sensors typically include VCC, GND, and SIG; connect SIG to AI input and GND to module GND.
- Four-wire sensors have separate power and signal lines; connect signal output to AI and signal ground to GND.
- Do not connect both voltage and current signals to the same AI channel.
- Sensor range and AI mode must match, such as 0~10V, 0~5V, or 4~20mA.
Common Applications
| Application | Recommended Model | Description |
|---|---|---|
| Two-channel status acquisition and two-channel relay control | Y301-220 | Small equipment control |
| Level, pressure, or temperature sensors with relay control | Y301-222 / Y301-444 | Process monitoring and automation |
| Multi-zone lighting, valve, or pump control | Y301-440 / Y301-880 | Control panels with multiple points |
- Manufacturer: Hunan YenGear Tech Co., Ltd.
- Email: [email protected]
- Website: www.yengear.com