Omron EE-SPW321 Photomicrosensor
Omron EE-SPW321 is a through-beam photomicrosensor designed for object sensing across a specified distance of 300 mm. Its optical arrangement changes the output state when a target interrupts the beam reaching the receiving side. The NPN output communicates this state to compatible industrial control circuitry, while Dark-ON operation defines the switching response. The sensor operates from 12 to 24 VDC and uses a pre-wired connection with a 2 m cable, including a 0.5 m cable length from the emitter to the amplifier. Average current consumption is specified at 30 mA, while operate or reset time is 1 ms maximum. Red indicators are provided on the sensor and amplifier. The EE-SPW321 provides amplified sensing within the 300 mm through-beam sensor range across Omron Sensor Products.
| Brand | Omron |
| Product | Photomicro Sensors |
| Model Number | EE-SPW321 |
Omron EE-SPW321 Photomicrosensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Throughbeam type |
| Sensing Distance | 300 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Control Output (Output Type) | NPN |
| Connection Method | Pre-wired models |
| Cable Length | 2 m (Cable length from emitter to amplifier: 0.5 m) |
| Current Consumption | Average value: 30 mA |
| Operation Mode | Dark-ON |
| Response Time | Operate or reset: 1 ms max. |
| Control Output (Residual Voltage) | at 100 mA load current: 1 V max. |
| Control Output (Load Current) | 100 mA max. |
| Indicator | Light indicator (red LEDs on Sensor and Amplifier) |
| Ambient Temperature (Operating) | -20 to 55 ℃ |
| Ambient Humidity (Operating) | 5 to 85 % |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 h |
| Shock Resistance | Destruction: 500 m/s2 |
| Degree Of Protection | IP64 |
| Material | Case: ABS resin Lens: Acrylic resin |
The Omron EE-SPW321 Photomicrosensor provides through-beam sensing across a specified distance of 300 mm. The optical path changes when a target interrupts the beam reaching the receiving side, allowing the NPN output to communicate the switching state to compatible industrial control circuitry. The sensor operates from 12 to 24 VDC, with average current consumption specified at 30 mA. Dark-ON operation determines the output response, while operate or reset time is 1 ms maximum. The output supports a load current of up to 100 mA and a residual voltage of 1 V maximum at that load. A 2 m pre-wired cable provides connection, with a separate 0.5 m cable length specified from the emitter to the amplifier. Red indicators are provided on both the sensor and amplifier.
Where an Omron photomicrosensor requires a shorter through-beam distance together with pre-wired installation, the relevant model is the EE-SPW321. Its 300 mm sensing span differs substantially from the 1 m EE-SPW311, while the integrated amplifier arrangement and fixed wiring provide a different electrical format. Operating temperature is stated from -20 to 55°C, and the housing materials are ABS resin for the case and acrylic resin for the lens. A 1 ms response supports quick output changes, while the 30 mA average consumption defines the supplied electrical requirement. For a related connector-type photomicrosensor with a longer 1 m sensing distance, see EE-SPW311.
