FUJI EP Series Modules EP-3429-C6-Z2

Technical Dossier

Product Details And Specifications

Fuji Electric EP Series Technical Notes

The Evolution of EP Series Architecture

The Fuji Electric EP Series emerged from the FRENIC drive platform lineage, inheriting the modular backplane architecture that Fuji standardized across its industrial automation product families in the late 1980s and through the 1990s. Early EP Series modules used parallel bus communication with proprietary Fuji backplane connectors, limiting interoperability with third-party control systems. Mid-generation revisions introduced optically isolated I/O interfaces and improved EMI shielding to meet IEC 61800-3 Category C3 requirements for variable-speed drive environments.

The C6 sub-designation within the EP-3429 family indicates a sixth-generation control board revision, incorporating improved IGBT gate drive circuitry and thermal protection logic compared to earlier C2 and C4 variants. The Z2 suffix denotes a zinc-plated chassis variant optimized for high-humidity industrial environments. Compatibility between C-series revisions is partial: C6 modules are electrically compatible with C4 backplanes but require firmware alignment. C2 modules are not hot-swap compatible with C6 slots without backplane adapter kits.

As the EP Series has entered its end-of-life phase with Fuji Electric's transition to the FRENIC-Ace and FRENIC-MEGA platforms, procurement of EP Series spares now relies primarily on authorized aftermarket distributors and certified refurbishment channels.

EP Series Full Catalog & Functionalities (SKU List)

Brake & Chopper Modules

• EP-3429-C6-Z2: Dynamic brake chopper module, C6 revision, zinc-plated chassis, 400V class
• EP-3429-C4-Z1: Dynamic brake chopper module, C4 revision, standard chassis, 400V class
• EP-3429-C2: Early-generation brake chopper, parallel bus interface, 380V nominal
• EP-3430-C6: High-capacity brake resistor interface module, 55kW–110kW drives

CPU & Control Modules

• EP-3100-C6: Main CPU module, dual-core DSP, FRENIC EP firmware v6.x compatible
• EP-3101-C4: CPU module, single-core, legacy firmware, 32-bit processing
• EP-3102-C6-Z2: Redundant CPU module, hot-standby capable, zinc-plated enclosure
• EP-3105-C6: Application CPU with onboard PID loop controller, 4 independent channels

Digital Input (DI) Modules

• EP-3210-C6: 16-channel DI module, 24VDC sink/source, optically isolated
• EP-3211-C6-Z2: 32-channel DI module, high-density, zinc-plated, IEC 61131-2 Type 1/3
• EP-3212-C4: 16-channel DI module, C4 revision, 120VAC input compatible

Analog Input (AI) Modules

• EP-3310-C6: 8-channel AI module, 4–20mA / 0–10V selectable, 16-bit resolution
• EP-3311-C6-Z2: 16-channel AI module, differential input, high-noise-rejection, zinc chassis
• EP-3312-C4: 4-channel AI module, thermocouple input, J/K/T/E type

Communication & Network Adapters

• EP-3510-C6: PROFIBUS-DP adapter module, slave mode, 12Mbps max
• EP-3511-C6: DeviceNet adapter, Group 2 Only server, 500kbps
• EP-3512-C6-Z2: Modbus RTU/TCP gateway module, dual-port Ethernet, zinc chassis

Power Supply Modules

• EP-3600-C6: 24VDC backplane power supply, 10A output, redundancy-capable
• EP-3601-C4: 24VDC power module, 5A, single-rail, non-redundant

Quality Control for the EP Series Range

EP Series modules present specific test challenges due to their proprietary backplane bus architecture and multi-layer PCB construction. DriveKNMS applies a structured verification protocol for all EP Series units processed through its facility: