Omron F3SJ Compatible Mounts
Content updated:
Notes for legacy replacements. This guide helps engineers swap the Omron F3SJ with DAIDISIKE DQC safety light curtains while assessing whether existing machine holes can be reused. We cover mechanical fit, bracket drawings and the evidence needed before specifying an adapter.
1) Legacy mount compatibility
Check the available light-curtain housings and series before planning reuse of F3SJ machine holes. Select an acceptable safety device first, then assess whether the existing structure can support its approved bracket arrangement.
Use the official F3SJ dimension and bracket drawings for the exact subseries. This table identifies checks to complete; it does not establish available universal adapters or interchangeable sensor mounts.
| Use case | Omron F3SJ (mounting) | DAIDISIKE DQC (mounting) | Required adjustments |
|---|---|---|---|
| F3SJ-A installation | Identify exact suffix and mounting kit | Compare selected DQC 30 × 30 mm drawing | Verify bracket engagement and active-field datum; adapter may be required |
| F3SJ-B / F3SJ-E installation | Use exact top/bottom or intermediate bracket drawing | Confirm approved brackets and support positions | Compare field endpoints and connector/cable envelope |
| Tight-space retrofit | Measure complete installed envelope | Do not assume a 30 × 17.5 mm DQC model | Select a documented suitable series before designing an adapter |
2) Mechanical fit & adjustments
When switching from Omron F3SJ to DAIDISIKE DQC, it's essential to address physical fitments such as mounting brackets, clearance adjustments, and protective height (PH). Below are recommended installation steps for compatibility:
Bracket & Adapter Kits
- L-brackets: Compare the approved DQC bracket with the existing machine holes; matching profile width alone does not demonstrate fit.
- Rear mounting: Confirm the actual slot and bracket design; no 30×17.5 mm DQC slim variant is established here.
- Mid-support: Follow the exact installation manual for the selected length and expected vibration.
Mounting Alignment
- Angle check: Use the model’s alignment indicators and permitted adjustment range, not a generic angular tolerance.
- Mid-support addition: Add for high PH or heavy-duty environments.
- Torque limits: Use the specified values for the exact bracket and thread; verify alignment after tightening.
3) Accessories compatibility
If you’re reusing existing accessories (covers, cables, or alignment lasers) from the Omron F3SJ, ensure the following swaps for proper fitment:
Mounting accessories
- L-bracket replacements for direct mounting on DQC
- Mid-support adaptors to avoid vibration and misalignment
Sensor alignment tools
- Laser pointer alignment for precise sensor setup
- Target and tool fit: verify each alignment aid against the device manual
Protection covers
- Existing F3SJ covers: reuse is unconfirmed until fit, transmission and permitted optical effects are documented
- Oil-mist and welding spatter covers: request the approved accessory list for the exact candidate
4) Final checks & commissioning
After physical installation and wiring, ensure all connections are secure, and validate the system with operational tests.
- Verify mounting height and tilt; cross-check PH to avoid misalignment.
- Recalculate safety distance S = K×T + C with real-time tests.
- Create a wire-by-wire plan from both exact wiring diagrams; a functional comparison is not a pin map.
- Use the exact manufacturer-prescribed test piece and the detection-test acceptance checks; separately validate complete stopping performance.
Practical questions
Can I reuse my F3SJ accessories for DQC?
Reuse is unconfirmed until the exact accessory and both sensor drawings have been compared. Verify bracket engagement, optical clearance, support positions and any cover's permitted optical effects; request an approved accessory list for the proposed replacement.
Are there any compatibility issues between Omron F3SJ and DQC?
F3SJ-A, F3SJ-B and F3SJ-E use variant-specific dimensions and accessories. The local DQC catalogue describes a 30 × 30 mm body; it does not establish a universal 30 × 17.5 mm DQC replacement or interchangeable F3SJ hole pattern.
What tools are required to replace Omron F3SJ with DQC?
Use the specified mounting hardware, measuring tools and a suitable torque tool. An approved alignment aid can assist installation. Obtain both wiring diagrams and the prescribed test piece, and validate coverage and the complete machine stopping performance before release.
Brand names such as Omron and F3SJ are the trademarks of their respective owners and are used here only for nominative comparison and compatibility reference. DAIDISIKE is not affiliated with, authorized by, or endorsed by these companies. Specifications are taken from each manufacturer's own public datasheets; confirm every replacement against the original unit's datasheet and a fresh ISO 13855 calculation for your machine.