DQA Safety Light Curtain (Type 4, PL e)

Long-range through-beam ESPE for guarding presses, shears, large machines and robot cells. Typical response ≤15 ms, high ambient-light immunity ≥10,000 Lux, optical synchronization, dual OSSD NPN/PNP, enclosure IP65. Resolutions 10/14/20/25/30/40/80/200 mm to match finger–body protection.

DAIDISIKE DQA safety light curtain product image
DQA kit & installation overview enlarged image
Product Highlights
  • Type 4 / PL e / SIL 3 design with dual OSSD (NPN or PNP) and optical sync.
  • Fast stop: typical response ≤15 ms helps minimize ISO 13855 safety distance.
  • High immunity to ambient light ≥10,000 Lux; anti-interference filtering and diagnostics.
  • Rugged IP65 aluminum body; 51×35 mm profile, standard brackets & M12/aviation options.
  • Long-range options (10–50 m variants available; contact for extended builds).
  • Integrates easily with a safety relay/PLC (EDM/interlock, manual/auto restart).

Values represent typical DQA series capabilities. For certification and exact variants, refer to the delivered datasheet and labels.

Resolution & Application Guide
Resolution (K)Typical Application
10 / 14 mmFinger protection (fixtures, close guarding)
20 / 25 mmPalm / hand protection (access openings)
30 / 40 / 80 / 200 mmHand/arm/body presence; aisles and zone guarding

Protective height H = (n − 1) × K. Overall length L follows the drawing rule L = P + H + J + end allowances.

DQA Technical Parameters

CategoryItemTypical Value / OptionNotes
OpticalPrincipleThrough-beam IR LED, modulatedEmitter/receiver pair; optical sync
Resolutions10 / 14 / 20 / 25 / 30 / 40 / 80 / 200 mmFinger → body presence
Response≤ 15 ms (typ.)Depends on beam count
Ambient immunity≥ 10,000 LuxIncidence ≥ 5°
Range0.3–3 m (A); long-range options to 50 m (H)A…H distance classes (see below)
IndicatorsPower / Run / BlockedFront status LEDs
ElectricalSupplyDC 12/24 V (10–30 VDC); AC 110–220 V via controllerReverse/over-voltage protections
Safety outputsDual OSSD (NPN or PNP), NO/NC variantsEDM & interlock supported via controller/PLC
Channel current≤ 200 mA (typ.)Transistor outputs
ProtectionsShort / over-current / overloadAuto recovery
SyncOptical synchronizationFewer cables, stable commissioning
ConnectorsM12 / aviation plugPer build
MechanicalBody section≈ 51 × 35 mmAluminum housing
Ingress protectionIP65Dust-tight, water-jet resistant
Operating temp.−10 ~ +40 °CStorage −25 ~ +55 °C
Humidity35–85 %RHNon-condensing
ComplianceStandardsIEC 61496-1/-2, EN ISO 13849-1Safety distance per ISO 13855
ArchitectureUse with safety relay/PLCDual independent inputs
NotesMarkings per delivered unitContact us for country approvals

Distance classes A…H: A 0.3–3 m · B 0.3–6 m · C 0.3–10 m · D 0.3–15 m · E 0.3–20 m · F 0.3–25 m · G 0.3–30 m · H 0.3–50 m (selected variants).

DQA Detailed Specifications (Auto-generated)

K (mm)Beams nProtective Height H (mm)Model ExampleRange
10650DQA06/10-500.3–3 m (A)
10870DQA08/10-700.3–3 m (A)
101090DQA10/10-900.3–3 m (A)
1012110DQA12/10-1100.3–3 m (A)
1014130DQA14/10-1300.3–3 m (A)
1016150DQA16/10-1500.3–3 m (A)
1018170DQA18/10-1700.3–3 m (A)
1020190DQA20/10-1900.3–3 m (A)
1022210DQA22/10-2100.3–3 m (A)
1024230DQA24/10-2300.3–3 m (A)
1026250DQA26/10-2500.3–3 m (A)
1028270DQA28/10-2700.3–3 m (A)
1030290DQA30/10-2900.3–3 m (A)
1032310DQA32/10-3100.3–3 m (A)

Model rule: DQA-K-NN-H (e.g., DQA-40-08-280). Distance classes A…H available; A:0.3–3 m (std) · B–H up to 50 m. For exact dimensional constants (P/J) use the drawing in the datasheet.

Typical Applications

  • Presses / shears / press-brakes: 10–25 mm (finger/palm); short safety distance with fast response.
  • Robot periphery & assembly: 20–40 mm for hand/arm protection; interlocked safety loop.
  • Large equipment & aisle guarding: 40/80/200 mm presence detection; long protective heights.

Safety distance reference (ISO 13855): S = K × T + C, where T is machine stopping time.

inXfrWA✉︎PTG