I. Basic Overview

Model: F334838 (F3348/38) Brand: HIMA Black Horse Series: HIMatrix F3 Series Module Type: 8-channel Safety Digital Output DO Module (48VDC Active Output, Source Type) Safety Level: SIL3, AK6, Cat.4/PL e Applicable Systems: SIS, ESD, BMS, F&G Configuration Software: SILworX Installation: F3 Standard Rack Slot, Supports Hot Swap Version Description: 38 is the hardware revision version, optimized for EMC anti-interference, wide temperature stability and component compatibility based on F3348, with the same functions as the basic version F3348.

II. Core Electrical Parameters

Number of channels: 8 independent transistor active output (source type, high level valid) Output type: 48VDC active output Single channel rated voltage: 48VDC (allowable range 36–60VDC) Single channel rated current: Resistance / inductive load maximum 0.5A (24W), lamp load maximum 4W Short circuit protection: Each channel independent short circuit, overcurrent protection, automatically limits fault current 0.75–1.5A Voltage drop characteristic: Internal voltage drop ≤ 2.5V at 500mA load Backplane power supply: 5VDC (typical 120mA) External power supply: 48VDC (typical 200mA + total load current) Insulation isolation: Channel and system, channel-to-channel high voltage safety isolation (AK1–6) Working environment temperature: -20℃ to +60℃ Protection level: IP20 Size: 4TE (approximately 20mm wide), standard F3 rack height

III. Function and Diagnosis

Built-in channel-level complete self-diagnosis, diagnostic coverage ≥ 99%. Detectable: Circuit break, short circuit, overcurrent, abnormal load, external power supply failure. Response: Immediately cut off faulty channel output, system alarm, configurable safe failure state. Each channel has independent RUN/FAULT indicator light, status is intuitive. Source type output: Directly drives 48VDC electromagnetic valve, relay coil, contactor. With line monitoring function: Break / short circuit automatic identification, no output signal when L - power supply is disconnected, no additional common power supply required, output terminal connected to positive pole of load, negative pole connected to 48V ground.

IV. Typical Applications

Drive 48VDC industrial electromagnetic valves, DC relays, contactor coils ESD emergency stop circuit, BMS boiler interlock, F&G fire protection system output third-party 48VDC control circuit interface, on-site indicator lights / alarm lights control medium-power actuator switch control (≤ 0.5A/48VDC)

V. Comparison of Similar Series

F3330/F3331: 8 channels 24VDC active output, 0.5A, basic type F3332: 8 channels relay passive dry contact, 250VAC/30VDC, 5A, AC/DC universal F3335 (version 34): 8 channels 24VDC active output, 0.5A, enhanced diagnosis + line monitoring F3348 (version 38): 8 channels 48VDC active output, 0.5A, high voltage type, suitable for 48V DC load F3334: 4 channels 24VDC high-power active output, 2A, suitable for large load

VI. Brief Usage Instructions

The module is directly inserted into the F3 backplane, automatically identified, supports hot swapping. Wiring: Connect the positive pole of the load to the output terminal of each channel, and the negative pole to 48V ground; Source type output, no need to distinguish source and leakage power supply: Backplane 5VDC + external 48VDC simultaneously connected, module works in normal working state: Select F3348 hardware model in SILworX, configure channel logic, fault response maintenance: Support online replacement, does not affect the operation of other modules; Diagnostic information can be viewed in software / hardware indicator lights.