Description

The FSC FS7-2173-2RP is a high-performance, redundant power supply module engineered for mission-critical applications within HIMA’s Fail-Safe Controller (FSC) automation platforms. Designed to deliver uninterrupted power to safety instrumented systems (SIS), the FSC FS7-2173-2RP ensures continuous operation in demanding industrial environments such as oil & gas production, chemical processing, and power generation. As a core component of HIMA’s modular FSC architecture, the FSC FS7-2173-2RP integrates seamlessly into SIL 2 and SIL 3 certified systems, providing robust electrical conditioning and fault-tolerant power distribution to critical control logic processors and I/O modules.

This dual-channel redundant power supply operates on a 24 VDC input and delivers a stable 5 VDC and 24 VDC output to downstream safety-critical components, ensuring reliable execution of emergency shutdown (ESD), fire and gas (F&G), and burner management (BMS) functions. The FSC FS7-2173-2RP is specifically designed for use in HIMA’s H41q and H51q safety PLC systems, where system availability and functional integrity are paramount. Its hot-swappable design allows for maintenance and replacement without shutting down the process, minimizing downtime and enhancing operational continuity. With built-in diagnostics, overvoltage protection, and thermal monitoring, the FSC FS7-2173-2RP exemplifies HIMA’s commitment to safety, reliability, and engineering excellence in process industries.

FS7-2173-2RP FSC

Technical Specifications

Product Model | FS7-2173-2RP
Manufacturer | HIMA
Product Type | Redundant Power Supply Module
System Compatibility | HIMA H41q, H51q, FSC Platform
Input Voltage | 20–30 VDC (nominal 24 VDC)
Output Voltage 1 | 5 VDC ±1%, 10 A max
Output Voltage 2 | 24 VDC ±5%, 3 A max
Redundancy Support | Dual power feed, automatic failover
Efficiency | >85%
Operating Temperature | -20°C to +60°C
Storage Temperature | -40°C to +85°C
Humidity Range | 5% to 95% RH, non-condensing
Installation | DIN rail mount (35 mm)
Protection Features | Overvoltage, overcurrent, short-circuit, thermal shutdown
Diagnostics | LED status indicators, system bus communication
Certifications | IEC 61508, SIL 3 (per IEC 61511), ATEX, CSA

Main Features and Advantages

The FSC FS7-2173-2RP stands out for its high-availability redundant design, which ensures continuous power delivery even in the event of a single power supply failure. This dual-feed capability is essential for safety systems where any interruption could lead to hazardous conditions or unplanned shutdowns. The FSC FS7-2173-2RP automatically switches between power sources without delay, maintaining stable voltage to safety logic solvers and I/O modules, thereby preserving system integrity.

Another key advantage of the FSC FS7-2173-2RP is its integrated diagnostic intelligence. Real-time monitoring of voltage, current, and temperature is communicated to the central controller via the FSC backplane, enabling predictive maintenance and rapid fault identification. The front-panel LED indicators provide immediate visual feedback on power status, redundancy health, and alarm conditions, simplifying troubleshooting for field technicians. This level of transparency enhances system reliability and reduces mean time to repair (MTTR).

The FSC FS7-2173-2RP also supports hot-swapping, allowing replacement under live conditions without affecting the operation of the safety system. This feature is critical in continuous-process industries where shutdowns are costly and risky. Constructed with industrial-grade components and conformal coating, the FSC FS7-2173-2RP is built to withstand harsh environments, including high vibration, electromagnetic interference, and extreme temperatures. Its compatibility with HIMA’s TÜV-validated safety platforms ensures compliance with global functional safety standards, making the FSC FS7-2173-2RP a trusted choice for protecting people, assets, and the environment.

Application Field

The FSC FS7-2173-2RP is widely deployed in industrial sectors where functional safety and system uptime are non-negotiable. In offshore oil and gas platforms, it powers safety shutdown systems that protect against overpressure, gas leaks, and equipment failure. The FSC FS7-2173-2RP’s redundancy and rugged design make it ideal for these remote, high-risk environments where maintenance access is limited and reliability is critical.

In refineries and petrochemical plants, the FSC FS7-2173-2RP supports fire and gas detection systems, ensuring that alarm and suppression functions remain operational even during power fluctuations or grid failures. Its SIL 3 certification enables integration into the highest levels of safety loops, providing assurance that life-critical systems will perform on demand.

The FSC FS7-2173-2RP is also used in onshore gas compression stations, chemical reactors, and nuclear power auxiliary systems, where uninterrupted power to safety logic is essential. In mining and metals processing, it safeguards high-energy equipment such as crushers and smelters by maintaining the integrity of emergency stop circuits. Additionally, in pharmaceutical and food & beverage facilities, the FSC FS7-2173-2RP ensures that safety interlocks on automated machinery remain active, protecting personnel during maintenance and operation. By delivering dependable, fault-tolerant power, the FSC FS7-2173-2RP plays a vital role in preventing accidents, minimizing downtime, and ensuring compliance with international safety regulations.

Related Products

HIMA H41q CPU Module: The central processing unit that works in conjunction with the FSC FS7-2173-2RP to execute safety logic in SIL 3 applications.
HIMA FS7-2172-2RP: An earlier version of the redundant power supply, compatible with legacy FSC systems but with lower current output.
HIMA FS7-2174-2RP: Enhanced variant with improved efficiency and extended temperature range for extreme environments.
HIMA F6221 I/O Module: Digital input/output module powered by the FSC FS7-2173-2RP, used for field device interfacing in safety loops.
HIMA H51q Safety Controller: Next-generation safety PLC platform that fully supports the FSC FS7-2173-2RP for high-availability applications.
HIMA Pegasus Software: Engineering environment used to configure and monitor systems utilizing the FSC FS7-2173-2RP.
HIMA FS7-2180-2BK: Backup battery module that integrates with the FSC FS7-2173-2RP to provide ride-through during extended power outages.
HIMA DIN Rail Power Distributor: Accessories that facilitate clean power distribution from the FSC FS7-2173-2RP to multiple modules.

FS7-2173-2RP FSC

Installation and Maintenance

Pre-installation preparation: Before installing the FSC FS7-2173-2RP, verify that the control panel is de-energized and that all grounding requirements are met. Ensure compatibility with the target HIMA safety controller (e.g., H41q or H51q) and confirm that the 24 VDC power source is stable and properly filtered. The FSC FS7-2173-2RP must be mounted on a standard 35 mm DIN rail with adequate ventilation to prevent overheating. When configuring redundant power feeds, use separate power supplies with isolated sources to maximize system availability.

Maintenance recommendations: The FSC FS7-2173-2RP requires minimal maintenance due to its solid-state design, but periodic visual inspections are recommended to check for dust accumulation, loose wiring, or LED status anomalies. Monitor system diagnostics via Pegasus software to detect early signs of power degradation or overtemperature conditions. The FSC FS7-2173-2RP can be replaced under power using hot-swap procedures, but ensure that the redundant unit is fully operational before removal. Keep spare units in ESD-protected storage and perform functional tests after any replacement to validate system integrity.