Description

The SIS PM01-A-V001 (commonly referenced as PM01) is a high-reliability, redundant-capable 24 VDC power supply module developed by Schneider Electric (under the Triconex brand) for use in Triple Modular Redundant (TMR) Safety Instrumented Systems (SIS). It serves as the primary source of conditioned DC power for Triconex chassis components—including main processors (MPUs), I/O modules, and communication cards—in safety-critical applications such as emergency shutdown (ESD), fire & gas detection, and turbine overspeed protection.

Designed for continuous, uninterrupted operation, the PM01-A-V001 supports dual AC or DC input sources and features automatic load sharing when used in pairs within a single Triconex chassis. Its output is tightly regulated to ensure stable voltage delivery even during input sags, surges, or partial failures—critical for maintaining the integrity of TMR voting logic. The module is hot-swappable, allowing replacement without powering down the entire safety system, thereby preserving process safety during maintenance.

Certified to IEC 61508 SIL 3 and compliant with IEEE 60252 (Guide for Application of Electrical Power Systems in Industrial Plants), the SIS PM01-A-V001 is widely deployed in oil refineries, LNG terminals, chemical plants, and power stations where functional safety is non-negotiable.

PM01 PM01-A-V001 SIS

Technical Specifications

Main Features and Advantages

✅ True Redundancy Support: Two PM01-A-V001 modules can operate in parallel, sharing load equally. If one fails, the other instantly assumes 100% load—zero interruption to safety logic execution.

✅ Universal Input Compatibility: Accepts both AC and DC inputs, enabling flexible integration into existing plant power infrastructures (e.g., 120/230 VAC mains or 125 VDC battery-backed systems).

✅ SIL 3 Functional Safety Certification: Validated for use in the highest-risk safety loops, including reactor trip, compressor anti-surge, and blowdown systems.

✅ Robust Diagnostics: Built-in self-monitoring reports faults via chassis backplane to the Triconex diagnostic software (e.g., TriStation 1131), enabling predictive maintenance.

✅ Fanless, Sealed Design: No moving parts increase MTBF (>150,000 hours) and eliminate failure points in dusty or explosive environments.

✅ Seamless Triconex Integration: Automatically recognized by the Triconex system; no configuration required. Power health is part of overall system voting diagnostics.

Application Field

The SIS PM01-A-V001 is a cornerstone of process safety in high-hazard industries:

• Oil & Gas: Powers ESD systems on offshore platforms, FPSOs, and pipeline compressor stations.

• Chemical & Petrochemical: Supports reactor protection, toxic release mitigation, and batch process interlocks.

• Power Generation: Used in nuclear rod control, fossil fuel boiler protection, and hydro turbine overspeed systems.

• Pharmaceutical & Food Processing: Ensures safe shutdown of high-pressure sterilization or mixing systems.

• Mining & Metals: Drives conveyor emergency stops and furnace gas shutoff logic.

Its reliability makes it essential wherever a single point of power failure must never cause a safety function to be lost.

PM01 PM01-A-V001 SIS

Related Products

• PM02 / PM02-A-V001: Higher-current (15 A) successor to PM01; backward-compatible in many chassis

• Triconex Chassis 4328A / 4329A: Main racks that house PM01 modules

• MPU II / MPU III: Main Processor Units powered by PM01

• IO Link Modules (e.g., 3501T, 3511T): I/O cards dependent on stable PM01 output

• TriStation 1131: Engineering workstation for monitoring PM01 status and diagnostics

• Power Distribution Modules (e.g., 8312): Distribute 24 VDC from PM01 to I/O terminal bases