Technical Specifications Model: LT8978bV1 Alternative Part Code: HI024049‑313 Supply Voltage: 24 VDC ±10 % Input Signal Type: Low‑level differential pulse signal Input Frequency Range: 1 Hz to 10 kHz Output Signal: Standard logic‑level amplified pulse signal Signal Isolation: Galvanic isolation between input side and output side Back‑plane Interface: Standard industrial rack multi‑pin gold‑plated connector Operating Temperature: ‑20 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE
Functional Features Amplify weak low‑amplitude pulse signals transmitted from remote field rotating‑speed sensors. Built‑in hardware noise‑filtering circuit suppresses industrial‑site electromagnetic interference noise. Signal shaping circuit converts distorted input pulse into neat square‑wave output pulse. Galvanic isolation between field input loop and system internal control circuit eliminates ground‑loop interference. Hardware over‑voltage protection for input signal channel. Front‑panel LED indicators display module power‑on and signal‑input status. Rack‑mount plug‑in structure supports convenient replacement for system maintenance.
Application Scenarios Spare‑part replacement for LT8978bV1 pulse amplifier board in ABB Symphony / Advant control rack. Signal conditioning for turbine and large rotating‑equipment magnetic‑pick‑up speed‑measuring pulse signal. Signal amplification processing for long‑distance transmission proximity‑probe pulse signal. Hardware maintenance and renewal for legacy ABB process‑control DCS system.
Installation Requirements Insert LT8978bV1 fully into designated rack slot and fasten front locking screw. Connect field speed‑sensor shielded twisted‑pair cables to front‑side signal terminals strictly following polarity definition. Implement protective earthing complying with DCS system grounding specification. Reserve ventilation heat‑dissipation clearance around circuit‑board slot. Ambient operating temperature shall keep within ‑20 ℃ ~ +60 ℃ without condensation. After power‑on, verify pulse‑input LED flicker synchronizing with field sensor rotating‑speed change.
There are no reviews yet.