Brand Replacement & Compatibility — Omron / Keyence / SICK / Pilz → DAIDISIKE DQC
A pragmatic, audit-ready guide to replacing popular safety light curtain families with DAIDISIKE DQC/JER. We focus on parameters, mounting hole patterns, wiring order, and accessories — plus a migration SOP that avoids downtime.
1) Cross-reference matrix (typical models → recommended DQC)
| Brand / Family | Typical resolution | Common protective heights | Usable range (typ.) | Mounting body | Recommended DAIDISIKE | Notes |
|---|---|---|---|---|---|---|
| Omron F3SG-SR | 10 / 14 / 30 / 40 mm | 150–1500 mm | 0.3–6 m | Square ~30×30 mm class | DQC (wired sync) or JER (optical sync) | Hole pattern aligns closely with 30×30 class; verify bracket offsets at ends |
| Keyence SL-V / GL-R | 10 / 20 / 40 mm | 200–1200 mm | 0.3–7 m (model-dep.) | Rectangular slim / 30×30 class | DQC (10/30/40) or DQZ slim (tight frames) | Mind connector orientation; some GL-R use angled M12 — check cable clearance |
| SICK deTec | 14 / 30 mm | 300–900 mm | 0.5–8 m (typ.) | Square ~30×30 mm | DQC-14/30 | Adapters available for SICK foot brackets; verify blind-zone length |
| Pilz PSENopt / PSENopt II | 14 / 30 mm | 150–1500 mm | 0.3–6 m | Square ~30×30 mm | DQC-14/30 | Check muting/blanking options; replicate with DQC controller where used |
The values above reflect common, field-seen configurations. Always confirm the exact datasheet dimensions, blind-zone, and response time for the specific sub-model you are replacing before approval.
2) Mounting & hole spacing notes
Body & holes
- Body class 30×30 mm: Omron/SICK/Pilz are usually close; DQC matches this class. End-cap offsets can differ by 2–6 mm — verify when reusing fixed brackets.
- Slim 30×17.5 mm: For cramped frames use DQZ/DQC-slim. Use 2 brackets per bar; add L-brace if span > 700 mm.
- Blind-zone: Measure from end-cap to first/last beam; ensure the guarded aperture remains covered after swap.
Accessories
- Foot brackets (floor posts), angle brackets, and protective windows are available in DQC kits.
- Adapters for SICK/Omron feet: slot spacing converters are available; otherwise drill new holes in the post plate.
- Welding bays: add polycarbonate or glass windows; schedule cleaning intervals.
3) Wiring order & terminal mapping (brand-agnostic → DQC)
| Function | Omron / Keyence / SICK / Pilz (typ.) | DAIDISIKE DQC mapping | Notes |
|---|---|---|---|
| Power | L+ 24 V / L− 0 V | +24 V / 0 V | Dedicated sensor PSU; separate breaker from drives |
| OSSD1 | OSSD1 (PNP/NPN) | OSSD1 → PLC X0 or safety relay input | Two independent channels with separate fuses |
| OSSD2 | OSSD2 | OSSD2 → PLC X1 or safety relay input | Desync (A≠B) must fault |
| EDM | EDM / Feedback | EDM IN ← K1/K2 NC in series | Blocks reset on welded contact; do not bypass |
| Restart | Manual reset | Reset (edge-triggered) | Use rising-edge logic only; position with full hazard view |
| Sync | Wired/Optical (family-dep.) | DQC: wired · JER: optical | Heavy EMI → prefer wired; cable-constrained → optical |
Polarity rule of thumb: PLC/safety-relay input common at 0 V → choose PNP (sourcing). Common at +24 V → choose NPN (sinking). Mixing types causes constant ON or false alarms.
4) Brand-specific replacement notes
4.1 Omron F3SG-SR → DQC/JER
- Mounting: End-cap offsets are usually compatible with 30×30 posts; verify first/last beam position vs blind-zone.
- I/O behavior: F3SG-SR diagnostics map cleanly to DQC indicators. Replicate EDM loop exactly; do not reuse a single-channel contactor.
- Migration tip: If original used muting, replicate with DQC muting module or a certified safety controller. Document the muting safety case.
4.2 Keyence SL-V / GL-R → DQC/DQZ
- Connector clearance: Some GL-R series use angled M12 — ensure cabinet strain-relief and bend radius fit the new bar orientation.
- Range: DQC-30/40 meet typical GL-R long-range use; pick 10/20 mm only if the process requires it (narrow pitch lowers range).
- Noise: In welding bays, add shrouds and re-route cables ≥200 mm from VFD bundles; cross at 90°.
4.3 SICK deTec → DQC-14/30
- Feet adapters: Our bracket kits include slot converters that match common SICK foot spacing; otherwise, re-drill the post plate.
- Blanking: If deTec used fixed/floating blanking, validate the same limits on DQC, or redesign the guard to avoid blanking where possible.
- Stops: Re-measure stop-time and recalc ISO 13855. Don’t recycle old numbers across a brand swap.
4.4 Pilz PSENopt / PSENopt II → DQC
- PSEN relays: PNOZ inputs expect specific polarity. Match DQC OSSD type to the relay common; re-land EDM through K1/K2 NC path.
- High-demand presses: If the line runs high-demand cycles, shorten inspection intervals and record test-rod sweeps each quarter.
5) Migration SOP (press-line ready)
Goal: Swap brand without changing the risk-reduction intent. Produce records an auditor can verify.
- Survey: Photograph current bars, bracket centers, blind-zone marks, connector angles, and cable routes. Export PLC/safety-relay I/O map.
- Match model: Use the DQC Model Selector to pick resolution/height/range and sync type. Order bracket adapters if needed.
- Bench test: Power DQC set on a table; verify OSSD timing and EDM loop behavior with K1/K2 simulator.
- Install: Mount to existing posts. If re-drilling is unavoidable, use stainless plates and anti-vibration nuts; log new centers.
- Wire: Land OSSD1/2 on separate fuses. Return EDM through K1/K2 NC to DQC EDM terminal. Reset must be rising-edge only.
- Validate: Re-measure stop-time; compute ISO 13855 distance (S = K×(t_r + t_s) + C). Perform test-rod sweep and record pass/fail at edges and center.
- Handover pack: Include photos, I/O table, ISO 13855 sheet, test-rod log, and maintenance schedule.
Record templates (CSV)
Date,Machine ID,Old brand/model,New model,Resolution (mm),Protective height (mm),Range (m),Stop time ts (ms),Curtain tr (ms),S (mm),Mount distance (mm),EDM OK (Y/N),Reset edge-only (Y/N),Inspector,Notes 2025-__,Press-01,F3SG-SR-____,DQC-10-600,10,600,2.0,110,12,195,450,Y,Y,___, 2025-__,Cell-A,deTec-____,DQC-30-900,30,900,4.0,150,14,262,520,Y,Y,___,
6) FAQ
Will hole positions match exactly across brands?
Usually close for the 30×30 class, but end-cap offsets and blind-zones differ by a few millimeters. Measure both bars and confirm the guarded aperture remains covered after the swap.
Can I reuse the old PLC program?
Yes for status monitoring, but do not alter the safety chain: OSSD → safety relay/controller → K1/K2. Re-verify reset is rising-edge and EDM blocks faults.
What if the old unit used muting/blanking?
Replicate only if justified by the safety case. Prefer mechanical guarding over blanking when practicable, and document mute timings and sensor layout.