A safety light curtain for industrial automation. Square 30×30 mm profile with resolutions 10/14/20/25/30/40/80/200 mm; standard sensing range 0.3–3 m (optional 0.3–6 m); strong light immunity ≥10,000 Lux (incidence ≥ 5°); response time ≤ 15 ms; enclosure rating IP65. Dual-channel NPN/PNP safety outputs (NO/NC), with OSSD, EDM, and optical synchronization.
Dimensions & installation detailsAppearance & wiring examplesApplication in machinery
Product Highlights
High resolution: Minimum beam spacing of 10mm, supporting fine detection (Resolution), suitable for finger protection (Finger Protection).
High protection rating: IP65, dustproof and waterproof (Dustproof and Waterproof), suitable for harsh industrial environments.
Self-test function: Built-in self-diagnostic system (Self-Monitoring), real-time monitoring of beam status to ensure system reliability; supports external device monitoring (External Device Monitoring, EDM).
Strong anti-interference capability: Effectively resists electromagnetic interference (EMI), light interference (Ambient Light Immunity >10000 Lux), and vibration, with anti-interference signal up to 9%; response time (Response Time) less than 15ms.
Solid-state output: Uses output signal switching device (Output Signal Switching Device, OSSD), dual-channel output (Dual Channel), PNP/NPN optional, no mechanical wear, long lifespan.
Easy installation: Aluminum alloy housing (Aluminum Alloy Housing), lightweight and durable, supports various installation methods; equipped with status indicators (Status Indicators) to display operating status.
Multi-beam configuration: Number of beams optional 4-32, supports blanking function (Blanking) to ignore fixed objects, muting function (Muting) to allow material passage.
Protective height H = (n − 1) × K. Overall length L = H + addon (varies by K; see spec tables below).
Technical Parameters (DQC Series)
Category
Item
Typical Value / Option
Notes
Optical
Operating principle
Through-beam infrared LED, modulated
Emitter/receiver pair; filtering and anti-interference design
Resolution (K)
10 / 14 / 20 / 25 / 30 / 40 / 80 / 200 mm
Finger / Palm / Hand-arm or Body
Protective height (H)
H = (n−1) × K
n = number of beams
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 (optional)
Specify on order
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 (OSSD)
Sink current 500 mA; short-circuit protection
Channel capability
≤ 200 mA (typ.)
Transistor output
Protection
Short / Over-current / Over-load / Reverse polarity
Auto recovery
Indicators
Power / Run / Blocked
Clear indication
Connector
Circular aviation connector
Waterproof, optional lengths
Synchronization
Optical
Fewer cables, stronger immunity
Mechanical / Environment
Body section
30 × 30 mm (square)
ABS plastic nylon
Overall length
L = H + addon (varies by K)
Approx. values; see tables
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 (Type 4), EN ISO 13849-1 (PL e)
Safety distance per ISO 13855
Certifications
CE, UL, TÜV
Refer to delivered certificates
System integration
Safety relay / Safety PLC
Independent dual inputs; EDM support
DQC Series Detailed Specifications
Tables list typical beam counts (n) for each resolution (K) with protective height H and overall length L. Model format: DQCnn/K-H. Example: DQC06/10-50 (K=10, n=6, H=50). Output: Add A/B/C/D (PNP NO / PNP NC / NPN NO / NPN NC).
K (mm)
Beams n
Protective Height H (mm)
Overall Length L (mm)
Model Example
Range
10
6
50
111
DQC06/10-50
0.3–3 m
10
8
70
131
DQC08/10-70
0.3–3 m
10
10
90
151
DQC10/10-90
0.3–3 m
10
12
110
171
DQC12/10-110
0.3–3 m
10
14
130
191
DQC14/10-130
0.3–3 m
10
16
150
211
DQC16/10-150
0.3–3 m
10
18
170
231
DQC18/10-170
0.3–3 m
10
20
190
251
DQC20/10-190
0.3–3 m
10
22
210
271
DQC22/10-210
0.3–3 m
10
24
230
291
DQC24/10-230
0.3–3 m
10
26
250
311
DQC26/10-250
0.3–3 m
10
28
270
331
DQC28/10-270
0.3–3 m
10
30
290
351
DQC30/10-290
0.3–3 m
10
32
310
371
DQC32/10-310
0.3–3 m
For 0.3–6 m builds, specify on order. Keep the model format DQCnn/K-H. Add A/B/C/D for output type (PNP NO / PNP NC / NPN NO / NPN NC).
Typical Applications
Presses / shears / press brakes: 10–30 mm resolutions suit hand protection; fast response enables shorter safety distance.
Packaging / logistics: 40–200 mm for aisle 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.
Installation Method
Determine the installation method: Side installation method (This item is sent by default), Two-end installation method, Tubular installation method.
Finger protection Spacing 10mm, Palm protection Spacing 20mm, Arm or body protection Spacing 40mm.
The DQC series safety light curtains can be used in conjunction with the following optional accessories.
Mutual shooting distance: It is suggested that you inform us of the actual range to achieve a better detection effect.
Protection height: The distance between the highest light spot and the lowest light spot is the range of the area that can be sensed on the grating.
Working Principle
The working principle of the DQC series safety light curtain is based on through-beam photoelectric sensing technology, using infrared beams to create a virtual protective barrier. The specific process is as follows:
Beam Emission and Reception: The emitter emits modulated infrared beams, and the receiver detects light intensity.
Synchronization Mechanism: Optical synchronization to ensure alignment.
Detection of Interruption: Object interrupts beam, triggering alarm.
Signal Processing: MCU processes, OSSD outputs OFF to stop machine.
Recovery: Restart interlock for recovery.
Anti-Interference: Filters to filter interference.
