First TwinCAT PLC Project on a Beckhoff IPC
Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.
Manufacturer: Omron
Product No.: F3SJ-E0625N25
Country of origin:Japan
Product Type: Safety Light Curtains
Payment: T/T, Western Union
Weight: 4000g
Shipping port: Xiamen
Warranty: 12 months
Engineered for robust point-of-operation guarding in automated industrial lines, the Omron F3SJ-E0625N25 safety light curtain delivers reliable Type 4 optoelectronic protection. This unit belongs to the specialized F3SJ-E "Easy" series, streamlined specifically for straightforward on/off safety applications that do not require complex muting or blanking configurations. Built with a rigid housing, the device features 30 optical beams providing a 625 mm protective height and a 25 mm detection resolution, making it highly effective for hand and arm detection in high-risk zones.
| Manufacturer | Omron |
| Model Number | F3SJ-E0625N25 |
| Product Type | Safety Light Curtain |
| Output Type | NPN semiconductor output (OSSD) |
| Number of Beams | 30 |
| Protective Height | 625 mm |
| Detection Capability | 25-mm diameter (hand and arm protection) |
| Beam Pitch | 20 mm |
| Operating Range | 0.2 to 7 m |
| Supply Voltage (Vs) | 24 VDC plus/minus 20% (SELV/PELV, ripple p-p 10% max.) |
| Emitter Current Consumption | 57 mA max. (for 30 beams) |
| Receiver Current Consumption | 45 mA max. (for 30 beams) |
| Light Source | Infrared LED (wavelength: 870 nm) |
| Degree of Protection | IP65 |
| Product Net Weight | 2.2 kg |
| Shipping Weight (Calculated) | 4.0 kg |
Typical wire mapping for standard Omron F3SJ-E Series transmitters and receivers:
| Wire Color | Emitter Connection | Receiver Connection |
|---|---|---|
| Brown | +24 VDC Power Supply | +24 VDC Power Supply |
| Blue | 0 VDC Power Supply | 0 VDC Power Supply |
| Black | Test Input | Safety Output 1 (OSSD 1 - NPN) |
| White | Not Used (Isolate wire) | Safety Output 2 (OSSD 2 - NPN) |
| Shield | Functional Earth (FE) | Functional Earth (FE) |
This F3SJ-E version provides NPN outputs. Be careful not to confuse it with the PNP-output models (suffix P25, e.g., F3SJ-E0625P25), which are standard in European-centric PLC architectures. Double-check your machine controller schematics to avoid interfacing issues.
Because this is an "Easy Type" curtain, it does not support series connection (cascading). If your application requires joining multiple light curtains together to guard a non-linear area, you must upgrade to the F3SJ-B (Basic) or F3SJ-A (Advanced) series. Furthermore, ensure there are no highly reflective surfaces near the detection zone, as infrared light can bounce around obstacles and fail to register a finger or hand intrusion.
When mounting, align the emitter and receiver vertically before anchoring. The F3SJ-E features built-in LED indicators that flash during misalignment. A stable green state across all sector indicators demonstrates optical lock. Always check alignment under full factory lighting conditions, as high-frequency ambient lighting can occasionally disrupt infrared beams if optical alignment is marginally positioned.
CRITICAL WARNING
Isolate and lock out all machinery electrical power before attempting physical installation or electrical termination. Verify that the power supply complies strictly with SELV/PELV 24 VDC regulations. Failure to follow proper electrical and structural isolation standards may result in serious injury or equipment failure.
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Returns & Warranty

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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Japan
|