Pilz 774306 - 4-Channel SIL3 PL e Safety Relay - Industrial Automation Rugged

Product Specification

1.Product Overview​

The ​Pilz 774306 PNOZ m B1​ is the core base unit of the PNOZmulti 2 modular safety system, engineered for scalable automation safety solutions. Designed with ​SIL 3 / PL e​ certification (ISO 13849-1), this configurable controller replaces traditional relay stacks with a centralized, programmable platform. Housed in a compact 45mm-wide DIN-rail module, it integrates ​14 safety inputs​ and ​10 safety outputs​ (5 semiconductor + 5 relay), supporting both standard and advanced safety functions. An integrated ​OLED display​ enables on-device diagnostics, while ​USB/Ethernet ports​ facilitate software configuration. Its 24VDC (±20%) operation ensures compatibility with industrial control systems worldwide, with UL 1998 and IEC 61508 compliance for high-risk applications requiring fail-safe performance.

2.​Key Technical Specifications​

Critical operational parameters:

• ​Safety Ratings: PLe Cat.4 (ISO 13849-1), SIL 3 (IEC 62061)
• ​Input Channels: 14 configurable inputs (24VDC, sink/source; accepts contactors, light curtains, E-stops)
• ​Outputs: 5 OSSD (semiconductor, 0.5A) + 5 relay (6A @ 250VAC/30VDC)
• ​Processing Speed: <15ms logic cycle time
• ​Memory: 4MB internal storage; microSD slot for project transfer
• ​Communication: USB, Ethernet (PAS LV), expandable via bus modules (PROFIBUS/PROFINET)
• ​Voltage Range: 19.2–30VDC (reverse polarity protected)
• ​Environmental: IP20 rating; -20°C to +60°C operating temperature
• ​Diagnostic Coverage: >99% (EN ISO 13849)
• ​MTTFd: >100 years (calculated)
• ​Standards: EN ISO 13849, IEC 60204-1, UL 61969

3.​Primary Applications​

This base unit enables tailored safety architectures for:

• ​Automotive Production: Robot workcell E-stop chains with muting/blanking logic
• ​Pharmaceutical Lines: Cleanroom access control via door interlocks and pressure mats
• ​Energy Infrastructure: Wind turbine brake monitoring with analog speed sensors
• ​Packaging Machinery: Synchronized safety for rotary cutters and conveyor belts
• ​Aerospace Assembly: Hydraulic press two-hand control (ISO 13851)
• ​Material Handling: AGV collision avoidance via laser scanners
  Ideal for large-scale systems needing centralized logic, supporting up to ​72 expansion modules​ for thousands of I/O points without compromising safety integrity.

​4.Competitive Advantages​

Transformative innovations over rigid relay systems:

• ​Space Efficiency: 90% smaller footprint vs. conventional relay cabinets
• ​Virtual Configuration: Free PNOZmulti Configurator software enables drag-and-drop logic design
• ​Live Diagnostics: OLED screen displays real-time errors and sensor states
• ​Hot-Swap Expansion: Modules added/removed under voltage (no downtime)
• ​Global Standards Compliance: Single device meets ISO, IEC, UL, and GB/T (China)
• ​Cybersecurity: Password-protected project files and audit trails
  Reduces commissioning time by 70% with pre-validated safety blocks (e.g., time delays, counters).

5.​Functional Capabilities​

Advanced safety and monitoring features:

• ​Flexible Logic Building: Create custom safety functions (AND/OR gates, latching) without wiring
• ​Motion Safety: Speed monitoring (SSM/SLS), standstill detection, and safe torque off (STO)
• ​Analog Monitoring: Process signals from 4–20mA/0–10V sensors (e.g., temperature, pressure)
• ​Network Integration: OpenSAFETY protocol support for distributed systems
• ​Event Logging: Stores 1,000+ timestamps for shutdowns/overrides (ISO 22031 compliant)
• ​Fail-Safe Updates: Firmware upgrades via USB with rollback protection
• ​Cross-Function Blocks: Preloaded templates for E-stops, light curtains, and two-hand controls
  Includes ​conformal coating option​ for dust/moisture resistance in harsh environments.

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Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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