ABB NMBC‑01 DDCS Communication Interface Board

Technical Specifications Model: NMBC‑01 Part Number: 64079760 Compatible Drive: ABB ACS600 series drives Power Supply: Internal power supply from drive control unit Communication Interface: Multi‑channel DDCS optical fiber ports Internal Bus Interface: Parallel back‑plane bus interface Mounting Method: Plug‑in installation inside drive cabinet Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE

Functional Features Converts drive internal parallel bus signal into DDCS optical fiber communication signal. Expands quantity of DDCS optical ports for drive main control board. Supports data exchange between drive and multiple DDCS‑type option modules. Realizes electrical isolation between drive internal logic circuit and external optical‑bus equipment. Built‑in self‑diagnosis monitors optical‑signal loss and internal bus communication fault. Front‑panel LED indicators show module power‑on and optical‑channel communication status.

Application Scenarios Spare‑part replacement for NMBC‑01 64079760 communication board inside ACS600 drive cabinet. DDCS interface expansion for single‑drive unit requiring connection of multiple external option modules. Hardware maintenance and renovation of legacy ABB ACS600 drive system.

Installation Requirements Power off drive and fully discharge DC‑bus residual voltage before replacement. Insert NMBC‑01 into designated slot of drive cabinet, lock fixing screws. Connect DDCS optical fiber jumpers to corresponding optical ports according to system topology. Check back‑plane connector full insertion status. Restore drive cabinet cover. Verify DDCS‑bus communication between drive and external option modules after power‑on.