ABB 3BHT300026R1 Digital Input Module Inquiry Item

Product Description

3BHT300026R1 is ABB DI651 digital input module belonging to Advant S600 I/O system. It has 32 isolated digital input channels with 48VDC input level, divided into 4 isolated groups. It supports sequence of event recording and pulse catching function for fast signal acquisition. It communicates with Advant controller through backplane bus, widely used in power plant, petrochemical and other Advant DCS control systems as maintenance spare.

Technical Specifications

Model: 3BHT300026R1 (DI651) Brand: ABB Series: Advant S600 I/O Channel: 32 digital input channels Input voltage: 48 VDC Isolation: Opto-isolated in four groups Function: Sequence of event, pulse capture Backplane: S600 I/O backplane Certification: CE Protection grade: IP20

Components & Troubleshooting

It includes optocoupler isolation circuit, signal acquisition chip, backplane communication logic, status LED indicators, gold-plated backplane connector and plastic housing. Common faults: Single channel no signal detection, module self-check error, communication failure with controller, overvoltage burnout of input channel, poor backplane contact.

Disclaimer

This spare part shall be installed, calibrated and maintained by qualified instrument technicians. Confirm channel voltage range before power up.