WOODWARD 5437-1119 Safety backup module
Specific Parameters
- Electrical Parameters
Power Input: 90–264Vac/47–63Hz, rated power consumption 30W
Output Voltage: Selectable nominal high output 115V AC/240V AC/125V DC, nominal low output 24V DC
Communication Interface: 1 RS485 serial port, supporting Modbus RTU protocol, baud rate adjustable 9600-115200bps
Voting Architecture: 2-out-of-3 voting relay design, supporting 3 independent input signal voting
Protection Functions: Overspeed protection, overheating protection, low oil pressure protection, built-in overvoltage and overcurrent protection
Control Core: Hard PLC processor, supporting LD instruction logic processing
Isolation Level: Electrical isolation between input and output circuits, dielectric test voltage 2.5kV AC (1 minute)
Inrush Current: 10A at 115Vac, 20A at 220Vac
- Environmental Parameters
Operating Temperature: -20°C to 60°C (full temperature range without derating)
Storage Temperature: -20°C to 70°C
Relative Humidity: 5% to 95% (non-condensing, continuous operation for 72 hours at 90% humidity and 40°C without failure)
Vibration Resistance: 0.04G²/Hz, 1.04Grms, 10-500Hz (compliant with industrial vibration standards)
Protection Class: IP56 when properly installed in cabinet
Pollution Degree: Class 2 (compliant with IEC 60664-1 standard)
Certification Standards: SIL 3 safety certification, compliant with IEC 61508 standard, CE certification
- Mechanical Parameters
Dimensions: 254mm (L) × 127mm (W) × 76mm (H, module itself)
Packaging Dimensions: 330mm × 486mm × 153mm
Weight: Approximately 2.3kg (before packaging)
Mounting Method: On-site installation or direct on-machine installation, adapting to standard cabinet slots
Housing Material: Flame-retardant reinforced plastic (UL 94 V-0 grade, with sulfur-resistant conformal coating)
Display Configuration: 4.2-inch on-site display, supporting parameter setting and status monitoring
Indicators: Power Status (PWR, green steady on), Operation Status (RUN, green 1Hz blinking), Fault Status (ERR, red steady on), Voting Status (VOTE, yellow blinking)
Product Performance
Adopts 2-out-of-3 voting architecture for signal redundancy judgment, with fault detection response time ≤10ms. It can automatically shield abnormal signals when a single module fails, ensuring continuous operation of the safety system. Supports online replacement and maintenance; other components work normally during single-module maintenance without interrupting equipment operation.
The hard PLC processor has a logic processing speed of 100ns/instruction, enabling rapid execution of complex safety control algorithms. The overspeed detection accuracy is ±0.1% rated speed, which can accurately trigger turbine shutdown protection. The communication interface data transmission delay is ≤50ms, fault information is uploaded to the monitoring system in real time, and diagnostic coverage is ≥99%.
It maintains stable operation in the wide temperature range of -20°C to 60°C and under 0.04G²/Hz vibration conditions, meeting the sulfur resistance requirements of Class 3C2 environment. The Mean Time Between Failures (MTBF) is ≥800,000 hours (MIL-HDBK-217F, 25℃ environment).
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