Omron EE-SPW321-A Photomicrosensor
Omron EE-SPW321-A is a through-beam photomicrosensor specified for object sensing across a 300 mm distance. The optical path extends between the transmitting and receiving sections, allowing the output condition to change when a target blocks the beam. Its NPN output connects with compatible machine-control circuitry, while Dark-ON operation defines the switching response. The sensor operates from 12 to 24 VDC and uses a 2 m pre-wired connection, including a 1 m cable between the emitter and amplifier. Average current consumption is 30 mA, while response time is 1 ms maximum. The EE-SPW321-A provides amplified sensing within the 300 mm through-beam sensor range across Omron Amplified Optical Sensors.
| Brand | Omron |
| Product | Photomicro Sensors |
| Model Number | EE-SPW321-A |
Omron EE-SPW321-A Photomicrosensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam 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: 1 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) | 101 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-A Photomicrosensor uses through-beam sensing across a specified 300 mm optical distance. Its transmitting and receiving sections establish a fixed beam, and a target crossing this path changes the NPN switching state. The unit operates from 12 to 24 VDC and draws an average current of 30 mA. Dark-ON operation determines the output response, while operate or reset time is specified at 1 ms maximum. The NPN output supports a load current up to 101 mA, with residual voltage stated at 1 V maximum at a 100 mA load. A 2 m pre-wired connection is supplied, including a 1 m cable between the emitter and amplifier. Red indicators on the sensing section and amplifier provide visual status during operation.
For an Omron amplified through-beam photomicrosensor requiring 300 mm sensing and pre-wired installation, the relevant model is the EE-SPW321-A. Operating temperature is specified from -20 to 55°C, while operating humidity covers 5% to 85%. The case is made from ABS resin and the lens from acrylic resin. Its 1 m emitter-to-amplifier cable distinguishes this version from the standard EE-SPW321 arrangement, where that portion is shorter. The separate amplifier and fixed wiring provide a different installation format from connector-based 1 m models. For a related 300 mm pre-wired sensor with a shorter emitter-to-amplifier connection, see EE-SPW321.
