A compact, ultra-slim light curtain designed for tight enclosures and robot cells. Slim front section 17.2 × 30 mm (typ.) with resolutions 10/14/20/25/30/40/80 mm; standard sensing range 0.3–3 m; high light immunity ≥10,000 Lux (incidence ≥ 5°); typical response time ≤ 15 ms; enclosure rating IP65. Dual-channel NPN/PNP safety outputs (NO/NC), with 3/5-wire wiring examples and optical synchronization.
Ultra-slim body for confined installationsResolutions from finger to body detectionPresence sensing for presses, assembly and logistics
Product Highlights
Ultra-slim 17.2 mm front section fits tight guards and small fixtures; neat cable routing.
Self-diagnostics with short-/over-current protection and clear indicators simplify troubleshooting.
≤15 ms typical response helps reduce ISO 13855 safety distance while maintaining productivity.
≥10,000 Lux immunity with filtering to suppress flicker and stray light; stable in welding glare.
IP65 enclosure; standard M12/aviation connectors and brackets for quick mounting.
Meets the intent of IEC 61496-1/-2; integrate with a safety relay/PLC for higher PL/SIL architectures.
Values consolidated from the supplied DQZ manual pages; if any difference exists, the official datasheet and delivered certificates prevail.
Resolution & Application Guide
Resolution (K)
Typical Application
10 / 14 mm
Finger protection (assembly, fixtures)
20 / 25 / 30 mm
Palm / hand protection, guarded access openings
40 / 80 mm
Arm/body presence, aisle and perimeter guarding
Protective height H = (n − 1) × K. Overall length L = P + H + J + 24 (12 mm allowance at each end). P/J depend on K; see the spec tabs below.
Technical Parameters (DQZ Series)
Category
Item
Typical Value / Option
Notes
Optical
Operating principle
Through-beam infrared LED, modulated
Emitter/receiver pair; anti-interference design
Resolution (K)
10 / 14 / 20 / 25 / 30 / 40 / 80 mm
Finger → body detection
Protective height (H)
H = (n − 1) × K
n = beam count
Response time
≤ 15 ms
Varies with beam count
Ambient light immunity
≥ 10,000 Lux
Incidence ≥ 5°
Sensing range
0.3–3 m (standard)
0.3–6 m on request
Electrical / I/O
Supply
DC 12/24 V; AC 110–220 V (with controller)
Reverse/over-voltage protection
Safety outputs
Dual-channel NPN / PNP, NO/NC selectable
3/5-wire examples
Channel capability
≤ 200 mA (typ.)
Transistor outputs
Protection
Short / Over-current / Over-load
Auto recovery
Indicators
Power / Run / Blocked
Front-side LEDs
Connector
M12 / Aviation plug
Optional
Synchronization
Optical
Fewer cables, strong immunity
Mechanical / Environment
Body section
~17.2 × 30 mm (ultra-slim)
Aluminum + engineering plastic
Overall length
L = P + H + J + 24
P/J depend on K
Ingress protection
IP65
Dust-tight, water-jet resistant
Operating temp.
−10 ~ +40 °C
Storage −25 ~ +55 °C
Humidity
Operating 35–85 %RH
Storage 35–95 %RH
Compliance
Standards
IEC 61496-1/-2 (concept)
Safety distance per ISO 13855
Certifications
CE etc.
Refer to delivered certificates
System integration
Safety relay / Safety PLC
Independent dual inputs; do not tie channels together
DQZ Series Detailed Specifications
Tabs list typical beam counts (n) for each resolution (K) with protective height H and overall length L. Model format: DQZ-K-NN-H. Example: DQZ-40-04-280 (K=40, n=4, H=280).
K (mm)
Beams n
Protective Height H (mm)
P/J (mm)
Overall Length L (mm)
Model Example
Range
10
6
50
5/32
111
DQZ-10-06-50
0.3–3 m
10
8
70
5/32
131
DQZ-10-08-70
0.3–3 m
10
10
90
5/32
151
DQZ-10-10-90
0.3–3 m
10
12
110
5/32
171
DQZ-10-12-110
0.3–3 m
10
14
130
5/32
191
DQZ-10-14-130
0.3–3 m
10
16
150
5/32
211
DQZ-10-16-150
0.3–3 m
10
18
170
5/32
231
DQZ-10-18-170
0.3–3 m
10
20
190
5/32
251
DQZ-10-20-190
0.3–3 m
10
22
210
5/32
271
DQZ-10-22-210
0.3–3 m
10
24
230
5/32
291
DQZ-10-24-230
0.3–3 m
10
26
250
5/32
311
DQZ-10-26-250
0.3–3 m
10
28
270
5/32
331
DQZ-10-28-270
0.3–3 m
10
30
290
5/32
351
DQZ-10-30-290
0.3–3 m
10
32
310
5/32
371
DQZ-10-32-310
0.3–3 m
For 0.3–6 m builds, specify on order. Keep the model format DQZ-K-NN-H.
Typical Applications
Presses / shears / press brakes: 10–30 mm suit hand protection; fast response supports shorter S-distance.
Robot cells & assembly fixtures: finger/palm detection with interlocked safety loop; compact to retrofit.
Packaging / logistics: 40–80 mm for aisle, pallet zone and presence detection.
General machinery: integrate with a safety relay/PLC for stop, interlock and EDM monitoring.
Safety distance reference (ISO 13855): S = K × T + C, where T is machine stopping time.
Frequently Asked Questions
Is the DQZ a Type 4 / PL e safety light curtain?
The DQZ is built to the concept of IEC 61496-1/-2 with dual-channel NPN/PNP safety outputs and self-diagnostics. The achievable PL/SIL depends on your overall architecture: pair it with a forcibly-guided safety relay or safety PLC providing EDM. Refer to the delivered certificates for the certified type and category of your specific configuration.
Which resolution do I choose for finger or hand protection?
Resolution K sets the smallest detectable object. Use 10/14 mm for finger protection on assembly and fixtures, 20/25/30 mm for palm and hand protection at guarded openings, and 40/80 mm for arm, body and perimeter presence detection. The DQZ offers all seven resolutions (10/14/20/25/30/40/80 mm) so one series covers most press, robot-cell and packaging tasks.
How does the ≤15 ms response time affect ISO 13855 safety distance?
ISO 13855 gives S = K × T + C, where T includes the curtain response plus machine stopping time. A fast ≤15 ms typical response lets you mount the DQZ closer to the hazard while still stopping in time, saving floor space. Always add the C intrusion term based on the chosen resolution and verify against your measured machine stopping time.
How do I wire the NPN/PNP OSSD outputs with EDM?
The DQZ provides dual-channel NPN or PNP safety outputs with 3/5-wire examples. Keep the two channels independent — never tie them together — and route both into a safety relay or safety PLC with external device monitoring (EDM) to detect contact welding. Select NPN (sinking) or PNP (sourcing) to match your controller; most modern European PLCs expect PNP.
Can the DQZ replace an Omron, SICK or Keyence safety light curtain?
In many cases yes. With resolutions 10–80 mm, 0.3–3 m range (0.3–6 m on request), IP65, ≥10,000 Lux immunity and standard M12/aviation connectors, the ultra-slim 17.2×30 mm DQZ fits brackets and cabling similar to common Omron, SICK deTec or Keyence units. Match resolution, protected height, output type and the required safety type to the curtain being replaced.
