ABB 3BHB026587R0001 Auxiliary Trigger Interface Board

Product Brief Introduction 3BHB026587R0001 is an auxiliary trigger interface board for ABB power converter system. It realizes distribution and conversion of trigger signals, auxiliary fault signal collection and transfer between main control unit and multi‑group power units. It ensures reliable signal transmission in high‑electromagnetic‑interference power cabinet environment.

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Technical Specifications

PowerPC or multi-core ARM processor at 800 MHz or above. 512 MB RAM, 2 GB Flash. Two 100 or 1000 Mbps Ethernet ports. RS-232 or 485 with HART. Profibus DP, optional Foundation Fieldbus H1. Redundancy switch below 100 ms. Operating temperature -40 to +70 C. SIL 3 per IEC 61508 with certified firmware. ATEX and UL HazLoc options. Protocols Modbus TCP, OPC UA, MQTT, PROFINET.

Functional Features

IEC 61131-3 programming via Control Builder M. CPU network and power redundancy. Hardware AES-256 security. SIS logic solver capability.

Application Scenarios

DCS head controller. SIS logic solver. Power substation gateway. Petrochemical batch control. Nuclear or thermal auxiliary systems.

Material and Structure

Metal-backed PCB. Backplane bus connector. Status LED row. DIN or rack chassis.

Installation Requirements

AC 800M rack slot with SD832 or SD833 redundant 24 V DC supply. Ground bus bonded to cabinet.

Usage Notes

SIL 3 rating valid only with approved firmware and redundant pair. Do not mix with non-certified S800 cards.

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