Description
Bently 3500/15‑04‑04‑00 (133292‑01)
- Key Features: Half‑height plug‑in rack‑module form factor; low‑voltage DC input range 20‑30 Vdc; built‑in input‑surge suppression circuit; dual‑unit parallel redundant working architecture; each single power‑supply unit can drive full‑rack load independently; hot‑swap capable under redundant‑running condition; front‑panel OK LED power‑health indicator; multi‑rail output‑voltage internal self‑diagnosis; built‑in over‑voltage, reverse‑polarity and short‑circuit protection functions.
- Technical Specifications & Performance Parameters
- Input voltage range: 20 Vdc ~ 30 Vdc low‑voltage DC
- Form factor: Half‑height rack‑module
- Operating temperature: 0 ℃ ~ +60 ℃
- Storage temperature: ‑40 ℃ ~ +85 ℃
- Weight: 0.81 kg
- Material Composition: FR‑4 multilayer power‑supply printed‑circuit board; DC‑DC conversion power‑supply components; input surge‑suppression and reverse‑polarity protection devices; multi‑rail output monitoring circuit chips; gold‑plated back‑plane edge connector; metal front‑panel fitted with OK status LED indicator; reinforced plastic mechanical locking latch assembly.
- Structural Features: Half‑height plug‑in rack‑module mechanical structure; front‑panel green OK LED shows power‑supply normal‑working status; rear‑side gold‑plated edge connector mates with rack back‑plane bus; field 24 Vdc power‑input wiring connects to matched rear‑side power‑input termination assembly; mechanical locking latch secures module in rack far‑left dedicated power‑supply slot.
- Working Principle: 24 Vdc industrial DC power input passes through surge‑suppression and reverse‑polarity protection circuit, enters high‑efficiency DC‑DC conversion circuit. Power‑supply converts raw DC input into multiple stable regulated DC voltage rails required by all 3500 monitor, communication‑gateway and relay modules. Two power‑supply modules installed in left‑side two slots operate in parallel redundant mode. Lower‑slot unit serves as primary power‑supply, upper‑slot unit works as automatic backup power‑supply. If primary power‑supply fails, backup unit takes over full rack‑load power‑supply instantly without system power‑interruption. Internal self‑diagnosis circuit continuously monitors each output‑voltage rail and triggers fault indication when output deviates from tolerance range.
- Application Scenarios: Redundant power‑supply for 3500 TSI racks powered by plant‑24 Vdc UPS battery‑backup power system; industrial sites without reliable AC mains power supply; petrochemical and power‑plant safety‑critical machinery‑protection systems requiring DC‑input redundant power‑supply; spare‑part replacement for existing low‑voltage‑DC‑input 3500 rack installations.
- Installation Requirements: Insert two half‑height power‑supply modules into rack far‑left dedicated dual power‑supply slots; lower‑slot unit works as primary power‑supply, upper‑slot unit serves as backup power‑supply; fully engage mechanical locking latch for each power‑supply module; complete 24 Vdc field‑power‑input wiring to matched power‑input termination assembly, strictly observe DC wiring polarity; verify front‑panel OK LED steady illumination after power‑on; perform power‑supply redundant‑switch‑over test to confirm backup‑power‑supply function performance.
- Usage Notes: Take ESD static‑electric‑protection measures during module handling and replacement; hot‑swap operation is permitted only when redundant partner power‑supply keeps normal working state; strictly respect DC input polarity requirement, reverse‑polarity input will trigger protection action; inspect front‑panel OK LED indicator status during daily equipment‑inspection rounds; avoid exposing power‑supply module to oil‑mist, dust and corrosive‑gas environment.
