FBM27

General Information

Manufacturer: Foxboro (Schneider Electric)

Model: FBM27

Series: I/A Series DCS

Type: 16‑Channel Isolated Discrete Output Module (expansion type, paired with FBM26)

Function: Controls external 15–240 VAC/DC discrete devices (solenoids, relays, motor starters)

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

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

Hot Swap: Supported

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 (600 VAC 1 minute withstand)

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

Main Features

16 Isolated Outputs: Each channel fully isolated to prevent crosstalk and fault propagation。

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

Configurable Logic:

Fail‑safe modes (hold, off, preset)

Sustained or momentary (pulse) outputs

Software‑selectable output delay

Hot‑Swappable: Online replacement 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。

Differences from FBM26

FBM26: Base 8‑channel I/O module (8 DI / 8 DO)。

FBM27: Expansion 16‑channel DO module (no onboard inputs), designed to extend FBM26 systems。

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。