FBM26A / FBM27A

General Information

Manufacturer: Foxboro (Schneider Electric)

Model: FBM26A / FBM27A

Series: I/A Series DCS

Type: 16‑Channel Isolated Discrete Output Module

Function: Interface control processor outputs to 15–240 VAC/DC field devices

Environment: Class G3 harsh industrial (ISA S71.04)

Certification: CE, ATEX, CSA; Class 1 Div 2 / Zone 2 hazardous area approved

Hot Swap: Supported (online replacement)

Redundancy: 1:1 redundant pairing supported

Key Specifications

Channels: 16 galvanic‑isolated discrete outputs

External Supply (per channel):

15–60 VDC, up to 2 A

120 VAC / 125 VDC, up to 0.5 A

240 VAC, up to 0.5 A

On‑state Voltage Drop: ≤ 0.2 V @ 2.25 A

Off‑state Leakage Current: ≤ 0.1 mA

Isolation: Per‑channel galvanic isolation (channel‑to‑ground/channel‑to‑channel)

Module Power: 24 VDC (+5% / −10%)

Power Consumption: ≤ 3 W

Operating Temperature: 0°C to +60°C

Storage Temperature: −40°C to +85°C

Humidity: 5%–95%, non‑condensing

Withstand Voltage: 600 VAC for 1 minute (channel‑to‑ground/channel‑to‑channel)

Main Features

16‑Channel Isolated Outputs: Each channel fully isolated for noise immunity and fault containment.

Multi‑Voltage Support: Works with 15–60 VDC, 120/240 VAC, and 125 VDC legacy systems.

Configurable Operation:

Fail‑safe modes (hold, off, preset)

Sustained or momentary (pulse) outputs

Software‑selectable output delay

Hot‑Swappable: Replace modules online without system shutdown.

LED Diagnostics: Front‑panel LEDs for module status and per‑channel indication.

Ladder Logic Support: Executes discrete I/O or ladder logic programs locally.

Flexible Termination: Compatible with various TAs (current limiting, fuses, relay/SS outputs, redundancy).

Applications

Process Industries: Chemical, power, oil & gas, water treatment.

On/Off Control: Solenoids, motor starters, valves, alarm beacons, relays.

Legacy 125 VDC Systems: Power plants and facilities with 125 VDC control infrastructure.

Harsh & Hazardous Areas: Class G3 environments and Class 1 Div 2/Zone 2 classified locations.