Omron NX-SOD400 NX Series 4‑Point Safety Output Unit PNP 24V DC

Omron NX-SOD400 is a safety output unit for the NX series I/O system. Provides 4 PNP (sourcing) safety outputs rated at 0.5 A per point, 2.0 A per unit. Screwless push‑in terminal block for tool‑free wiring. 12 mm width for high‑density mounting. Certified up to SIL 3 (IEC 61508) and PLe / Category 4 (EN ISO 13849‑1). Part of the NX series for integrated safety and standard I/O control in machine automation systems.

Applications:

• Safety output control for emergency stop circuits

• Guard door interlock and safety relay replacement

• Robot cell and conveyor system safety output expansion

• Machine automation requiring SIL3 / PLe safety integrity

Core Specifications:

• Number of safety outputs: 4 (PNP, sourcing)

• Permitted output voltage: 20.4 V … 28.8 V

• Output current: 0.5 A per point, 2.0 A per unit

• Output protection: Short‑circuit protected outputs

• Signal processing: Free‑run refreshing

• Connection type: Screwless push‑in terminal block

• I/O refreshing method: Free‑run refreshing

• NX unit power consumption: ≤ 1.10 W (connected to CPU Unit or Communication Control Unit), ≤ 0.75 W (connected to Communications Coupler Unit)

• Current consumption from I/O power supply: ≤ 60 mA

• Protection rating: IP20

• Dimensions (W × H × D): 12 mm × 104.5 mm × 80.1 mm

• Weight: approx. 90 g

• Operating temperature: 0 °C … 55 °C

Safety Ratings:

• SIL: SIL 3 (IEC 61508)

• Performance level: PLe (EN ISO 13849‑1)

• Category: Category 4 (EN ISO 13849‑1)

Advanced Specifications:

• Indicators: TS indicator, FS indicator, output indicators (yellow), output error indicators (red)

• Isolation method: Photocoupler isolation

• Insulation resistance: 20 MΩ min. between isolated circuits at 100 V DC

• Dielectric strength: 510 V AC for 1 min between isolated circuits, leakage current ≤ 5 mA

System Integration:

• This safety output unit belongs to the Omron NX series I/O system.

• Connects to the NX bus via an EtherCAT Coupler (e.g., NX-ECC203) or a Safety CPU Unit.

• Supports Safety over EtherCAT (FSoE) protocol, allowing safety and standard I/O units to be mixed on the same EtherCAT network.

• Configuration and safety programming performed using Sysmac Studio automation software.

Related Products:

• NX-ECC203 – EtherCAT Coupler Unit, 2 ports, supports up to 63 I/O units

• NX-SID800 – 8‑point PNP safety input unit

• NX-PF0630 – I/O power feed unit for NX series

• Sysmac Studio – Automation software for configuration and programming