DX-D6 Series Safety Door Switch — Mechanical Locking and Electromagnetic Locking
- All-metal structure: sturdy, safe and durable.
- Multiple functions: mechanical locking + electromagnetic locking with status monitoring.
- Coding methods: unique and universal coding available.
- Redundant dual output: prevents safety hazards from single-circuit failure.
- Cascaded connection: reduces PLC input points — up to 20 units in series.
- Compact appearance: 30 × 30 mm cross-section.
- Flexible installation: mounts directly on aluminum frames ≤ 30 mm.
- Suitable for: security doors, security windows, isolated areas.
- Applications: automated production lines, robot cells, hazardous test areas.
- Forced safety output: at least 2 NC contacts; multiple auxiliary contact options.
Technical Parameters
| Parameter | Value |
|---|---|
| Standard | ISO 13849-1 (Category 4 / PLe); IEC/EN 60947-5-3 |
| Certification | CE |
| Locking method | Mechanical locking / Electromagnetic locking |
| Safety output | NPN ×2 / PNP ×2 |
| Response time | |
| Locked → Unlocked | 100 ms (working independently) |
| Unlocked → Locked | 100 ms (working independently) |
| Locking | |
| Holding force Fzh (locking force) | ≥ 2000 N |
| Latch engagement tolerance | ≤ 2 mm |
| Mechanical service life | > 1,000,000 cycles (door operating speed 1 m/s) |
| Operating frequency | 1 Hz |
| Minimum swing-door radius | ≥ 220 mm |
| Manual release / Manual unlock | Front, back |
| Cascade connection | Maximum 20 units |
| Control output (OSSD output) | |
| Output type | Transistor output × 2 |
| Maximum load current | ≤ 200 mA |
| Residual voltage (ON state) | ≤ 2.5 V @ 200 mA |
| Voltage in OFF state | ≤ 2 V @ 5 m cable |
| Leakage current | ≤ 0.5 mA |
| Maximum load capacitance | 2.2 µF |
| Load connection resistance | ≤ 2.5 Ω |
| AUX output (non-safety) | |
| Output type (diagnostic / auxiliary) | Transistor output |
| Number of outputs | 1 |
| Maximum load current | 50 mA |
| Residual voltage (ON state) | ≤ 2.5 V @ 50 mA |
| External input (leakage current) | |
| Safety inputs | 1.5 mA × 2 |
| Reset / EDM input | ≈ 10 mA × 1 |
| Lock-control input | ≈ 10 mA × 1 |
| Power supply | |
| Operating voltage | DC 24 V ± 15% |
| Rated power | 4.6 W (no-load) |
| Protection functions | Safety break protection, current limiting, overload, overvoltage, overheating (stop & restart), reverse polarity, transient noise, failure-pulse protection |
| Environmental resistance | |
| Enclosure protection rating (IP code) | IP65 |
| Operating ambient temperature | −20 °C to +55 °C (no freezing) |
| Storage ambient temperature | −25 °C to +70 °C (no freezing) |
| Operating ambient humidity | 5 % – 95 %RH |
| Storage ambient humidity | 5 % – 95 %RH |
| Vibration resistance | 10 – 55 Hz, double amplitude 2.0 mm, 5 min in X / Y / Z (IEC 60947-5-3) |
| Shock resistance | 30 g, 6 times in X / Y / Z (IEC 60947-5-3) |
| Risk time (response time to hazard) | 100 ms |
| Start-up time | 3.5 s |
| Materials | Nylon / Zinc alloy / Stainless steel |
1) Positioning & Use Cases
DX-D6 is an industrial guard door interlock with electromagnetic locking, built for machine tools, robot cells, packaging / assembly lines, and high-risk isolation zones. It keeps the door locked while hazards remain and permits opening only after a verified safe state.
2) Key Engineering Advantages
- Dual safety mechanism: mechanical interlocking + electromagnetic locking prevents premature access.
- Safety-chain ready: compatible with safety relays / PLCs, dual-channel monitoring.
- Mis-operation resistant: door / lock status indication and actuator-presence detection minimize false releases.
- Ruggedized for industry: sealed housing, vibration-resistant, oil & dust tolerant; heavy-duty mounting options.
- Service-friendly: front access wiring, clear terminal markings and intuitive LEDs shorten commissioning time.
- Standards-driven: designed against IEC/EN 60947-5-1 / -3 and GB 14048.5-2017 (see certificates & test reports).
- System solution: integrates with DAIDISIKE light curtains, E-stops, door sensors and safety relays.
3) Typical Control Logic
- Interlock + Stop: open / unsafe door → safety relay opens → machine enters safe stop.
- Unlock release: only after safe-state confirmation + enable signal → magnet releases → door can open.
- Re-start prevention: opening the door breaks the safety circuit; re-start requires closing the door and a deliberate reset.
4) Detailed Specifications
Housing & Mechanics
- Material: zinc-alloy main body, stainless-steel actuator
- Mounting: left / right, horizontal / vertical
- Door type: hinged / sliding; optional heavy-duty kits
- Actuator: straight / adjustable / heavy-duty
- Cross-section: 30 × 30 mm
Locking Performance
- Locking type: power-to-lock / power-to-release options
- Holding force: ≥ 2000 N
- Mechanical life: > 1,000,000 cycles
- Door operating speed: 1 m/s
Sensing & Outputs
- Door position: monitored via OSSD
- Lock status: monitored via AUX output
- Safety level: PLe / Cat.4 (ISO 13849-1)
- Electrical rating: DC 24 V, OSSD ≤ 200 mA
- Response time: 100 ms
Electrical
- Supply: 24 VDC ± 15 %
- Rated power: 4.6 W no-load
- Interface: terminal block / M12 / cable
- Protections: over-current, overload, overvoltage, reverse polarity, transient noise
Environment
- IP rating: IP65
- Operating temp: −20 °C to +55 °C
- Humidity: 5 – 95 %RH
- Vibration: 10-55 Hz, 2.0 mm amplitude
- Shock: 30 g, 6 times each axis
HMI & Service
- LEDs: Power / Door / Lock / Fault
- Mechanical override: emergency / maintenance release from front & back
- Reset mode: manual or automatic; external reset terminal
Standards & Compliance
- ISO 13849-1, IEC/EN 60947-5-3, GB 14048.5-2017
- CE, RoHS
- Traceability via nameplate / QR / serial number
Kits & Options
- In-box: actuator, screws, quick-start guide
- Options: adjustable striker, reinforced brackets, cable extensions, heating accessory
5) Selection & Integration Tips
- Choose locking logic (power-to-lock vs. power-to-release) based on machine inertia and risk category.
- Match output type with safety relay / PLC inputs (NPN / PNP / dry contact / OSSD); wire both channels independently.
- Route cables away from power lines; use shielded cabling and proper grounding; consider a dedicated 24 VDC supply.
- Validate stopping time and compute safety distance per ISO 13855; document periodic functional tests.
6) Installation & Maintenance
- Align the actuator with the lock head; ensure recommended insertion depth and use anti-loosening hardware.
- Verify terminal mapping and LED states on first power-up; test door / lock contacts and reset behavior.
- Establish inspection intervals for wear, alignment and contamination; maintain logs as part of the safety lifecycle.
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