Technical Specifications Model: NAIO‑03F Part Number: 64669303 Power Supply: 24 VDC ±10 % Analog Input Channels: 2 channels Analog Output Channels: 2 channels Signal Support: 4‑20 mA, 0‑20 mA, ±2‑10 V Galvanic Isolation: Full channel‑to‑bus galvanic isolation Communication: DDCS optical fiber interface Mounting: 35 mm DIN‑rail mounting Operating Temperature: ‑20 ℃ to +70 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE
Functional Features Enhanced G‑grade conformal coating adapts to corrosive gas and high‑humidity industrial cabinet environment. Supports same voltage and current signal configuration as NAIO‑03 via DIP switches. DDCS optical fiber communication isolates drive high‑power circuit and field analog loop. Built‑in multi‑stage hardware filter suppresses high‑frequency electromagnetic interference. Complete channel over‑voltage and over‑current protection. Front‑panel LED status indicators show power‑on and DDCS communication link status. Pluggable terminal blocks facilitate maintenance replacement without re‑wiring.
Application Scenarios Spare‑part replacement for NAIO‑03F 64669303 in ACS600 drive system operated under corrosive atmosphere. Process closed‑loop control for chemical plant, offshore auxiliary equipment and paper‑making industrial variable‑speed drive. Field analog signal interface for drive‑based PID regulation system. Hardware maintenance and renewal for legacy ABB multidrive cabinet.
Installation Requirements Install NAIO‑03F onto standard 35 mm DIN‑rail inside drive cabinet, keep horizontal mounting orientation. Complete 24 VDC power‑supply wiring and field analog signal wiring to pluggable terminal blocks. Connect DDCS optical fiber between NAIO‑03F and corresponding optical port of drive control board. Configure channel signal mode by DIP switches according to field device signal definition. Implement protective earthing complying with cabinet grounding specification. Ambient operating temperature shall keep within ‑20 ℃ ~ +70 ℃ without condensation.
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