SANSHO FPBA Modules | FPBA RECHARGEABLE LI-ION BATTERY

Technical Dossier

Product Details And Specifications

SANSHO FPBA Series: Comprehensive Module Range and Technical Overview

The SANSHO FPBA series represents a dedicated line of rechargeable lithium-ion battery modules engineered for sustained backup power in industrial control systems. These units are deployed across global heavy industry sectors including petrochemical processing plants, nuclear power facilities, offshore oil platforms, and continuous-process refineries where uninterrupted controller operation is a non-negotiable operational requirement. The FPBA series provides memory retention and real-time clock backup for programmable logic controllers and distributed control system (DCS) rack assemblies, ensuring that critical process parameters, ladder logic programs, and configuration data are preserved during planned or unplanned power interruptions. Installed base records indicate FPBA modules are found in legacy DCS architectures across Asia-Pacific, the Middle East, and European industrial zones, many of which operate on extended maintenance cycles of 10–25 years. The series has entered a mature lifecycle phase, making reliable spare parts sourcing a primary concern for plant maintenance engineers and procurement teams.

The Evolution of FPBA Architecture

The FPBA battery module line was developed to address the power backup requirements of SANSHO's industrial controller platforms. Early iterations of the series used standard NiCd (nickel-cadmium) cell chemistry, which was progressively replaced by lithium-ion technology to achieve higher energy density, lower self-discharge rates, and improved temperature tolerance across the -10°C to +60°C industrial operating range. The transition to Li-Ion chemistry also eliminated the memory effect degradation characteristic of NiCd cells, extending effective service intervals. Architecturally, FPBA modules interface with controller backplanes via a standardized connector footprint, allowing drop-in replacement without backplane modification in most SANSHO rack configurations. Compatibility considerations arise when mixing FPBA revisions across different firmware generations of the host controller; plant engineers are advised to cross-reference the controller's hardware revision manual before substituting battery module variants. As the broader SANSHO controller platform has matured, the FPBA series has transitioned from active production to a maintained spare parts status, with no direct next-generation successor announced for legacy rack form factors. Modern SANSHO systems have migrated to integrated supercapacitor backup designs, but installed FPBA-dependent systems remain in active service globally and require periodic battery replacement on 3–5 year cycles.

FPBA Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented FPBA series range. Each module is classified by primary function within the controller architecture:

FPBA RECHARGEABLE: Standard rechargeable Li-Ion backup battery for SANSHO DCS/PLC controller memory retention.
FPBA-01: Single-cell Li-Ion battery module, 3.6V nominal, for compact controller rack slots.
FPBA-02: Dual-cell Li-Ion pack, 7.2V output, for extended backup duration in mid-range controllers.
FPBA-03: High-capacity Li-Ion module with integrated charge management circuit for continuous-duty applications.
FPBA-04: Low-profile battery module designed for space-constrained backplane installations.
FPBA-05: Enhanced-temperature Li-Ion pack rated for ambient operating range up to 70°C.
FPBA-10: Replacement battery assembly for SANSHO Series 1 CPU modules, direct plug-in format.
FPBA-11: Battery module with onboard charge status LED indicator for field inspection without module removal.
FPBA-20: High-reliability Li-Ion pack with dual-cell redundancy for safety-critical controller applications.
FPBA-21: Extended-life variant with 5-year rated service interval under standard industrial cycling conditions.
FPBA-30: Battery module compatible with SANSHO remote I/O rack controllers and distributed node processors.
FPBA-31: Sealed Li-Ion pack with conformal coating for high-humidity and corrosive-atmosphere environments.
FPBA-40: Modular battery cartridge system allowing field replacement without full controller shutdown.
FPBA-50: Legacy NiCd-to-Li-Ion retrofit module, backward-compatible with early SANSHO backplane connector standards.
FPBA-100: High-capacity industrial battery pack for large-format DCS controller chassis with extended memory maps.
FPBA-200: Rack-mount battery backup unit for multi-slot SANSHO controller assemblies requiring centralized power backup.

Sourcing Hard-to-Find & Obsolete FPBA Parts

DriveKNMS maintains a dedicated inventory program for SANSHO FPBA series modules, with particular focus on variants that have been discontinued from the original manufacturer's active supply chain. As the FPBA series has entered its mature and end-of-life phase, procurement through standard distribution channels has become increasingly unreliable, with lead times extending to 16–52 weeks or resulting in no-quote responses. DriveKNMS sources FPBA modules through verified secondary market channels, factory-surplus stock, and decommissioned equipment recovery programs. All sourced units undergo condition assessment prior to listing. For plant operators managing long-term maintenance agreements on SANSHO-equipped facilities, DriveKNMS offers bulk reservation and consignment stocking arrangements to ensure parts availability aligns with scheduled turnaround and outage windows. Inquiries for specific revision codes, date codes, or quantity requirements are handled directly by the technical sales team.

Quality Control for the FPBA Range

Battery modules in the FPBA series require specialized verification procedures that differ from standard electronic module testing. DriveKNMS applies the following quality control protocol to all FPBA units processed through its facility: (1) Open-circuit voltage measurement to confirm cell charge state and identify depleted or internally shorted cells. (2) Internal resistance measurement using a 1kHz AC impedance test to assess cell aging and capacity degradation. (3) Charge-discharge cycle test under controlled load to verify rated capacity against manufacturer specification. (4) Connector and housing inspection for corrosion, pin deformation, and seal integrity, with particular attention to the backplane interface connector which is subject to fretting corrosion in high-vibration installations. (5) Thermal stability check during charge cycle to identify cells exhibiting abnormal heat generation indicative of internal defects. (6) Firmware compatibility cross-check against known SANSHO controller hardware revisions to confirm the module revision code is appropriate for the target installation. Units that do not meet specification thresholds at any stage are quarantined and not released for sale.