SEW 8141649

Technical Specifications

• Main DC‑Bus Input Range: 300 VDC … 800 VDC from drive‑rectifier‑section
• Auxiliary‑Output Supplies: Multiple regulated isolated 24 V, 15 V, 5 VDC logic‑rail outputs for drive‑internal‑electronics
• Maximum Auxiliary‑Output Power: 80 W total auxiliary‑power‑delivery capacity
• Operating‑Temperature: ‑10 °C … +55 °C inside ventilated‑drive‑cabinet
• Storage‑Temperature: ‑25 °C … +70 °C
• Isolation Rating: Reinforced‑isolation between DC‑bus‑potential and auxiliary‑logic‑supply domain
• Physical Format: Plug‑in internal‑drive‑card assembly

Functional Features

• Switched‑mode power‑supply generating multiple stabilized isolated auxiliary‑voltage‑rails for drive‑CPU, encoder‑interface‑cards and logic‑circuits
• DC‑bus‑voltage‑measurement‑and‑feedback‑signal generation for main‑drive‑control‑board
• Hardware‑under‑voltage‑lock‑out protection; inhibits drive‑operation when auxiliary‑supply‑voltages fall below valid‑operating‑threshold
• On‑board pre‑charge‑monitoring‑circuit for DC‑bus‑capacitor‑pre‑charge‑sequence supervision
• Over‑current‑and‑over‑temperature‑self‑protection for internal‑power‑converter‑circuits

Application Scenarios

• SEW‑MOVIDRIVE‑inverter‑drive maintenance‑and‑spare‑part‑replacement
• Motion‑control‑equipment: packaging‑machinery, material‑handling‑systems, machine‑tool‑axis‑drives
• Drive‑retrofit‑and‑repair‑workshops for industrial‑automation‑assets

Performance Parameters

• Auxiliary‑output‑voltage‑regulation accuracy ±2 % across full‑load‑range
• Reinforced‑galvanic‑isolation blocks ground‑loop‑noise‑coupling between high‑voltage‑bus and low‑voltage‑logic‑circuits
• Over‑temperature‑fault‑shutdown‑trigger‑point at board hot‑spot temperature +85 °C

Material Composition

• Base‑material: FR‑4 high‑Tg‑grade multilayer‑printed‑circuit‑board
• Power‑semiconductors: High‑voltage‑MOSFET power‑switching‑devices, high‑speed‑rectifier‑diodes
• Magnetic‑components: High‑frequency‑isolation‑transformer for auxiliary‑power‑generation
• Passive‑components: High‑voltage‑film‑capacitors, power‑resistors, surge‑suppression‑components

Structural Characteristics

• Plug‑in‑card‑form‑factor, mechanically fixed inside‑drive‑chassis
• Edge‑connector‑interface mating to drive‑main‑back‑plane‑bus
• High‑voltage‑DC‑bus‑connection‑terminal blocks and low‑voltage‑signal‑terminals arranged on‑board
• Thermal‑layout‑optimized copper‑area for power‑component‑heat‑dissipation

Working Principle Energy is drawn from drive‑main‑DC‑bus; high‑frequency‑switched‑mode‑converter transfers energy across isolation‑transformer barrier; secondary‑side‑rectification‑and‑regulation‑circuits produce multiple‑stable‑isolated‑auxiliary‑DC‑voltage‑rails supplying all low‑voltage‑drive‑electronics; measurement‑circuits sample DC‑bus‑potential and auxiliary‑output‑voltages, delivering fault‑status‑signals to drive‑main‑CPU.

Installation Requirements

• Execute replacement‑operation only when drive‑unit is fully‑de‑energized and DC‑bus‑capacitors have completed full discharge cycle
• Ensure edge‑connector is fully seated; tighten mechanical‑retaining‑fasteners
• Maintain drive‑unit‑cooling‑air‑flow‑path unobstructed to support power‑component‑heat‑dissipation
• Torque‑specifications must be strictly followed for DC‑bus‑high‑potential‑terminal‑connections

Usage Notes

• Electrostatic‑discharge‑sensitive‑component‑assembly; anti‑static‑handling‑procedure mandatory
• Do not energize drive‑unit without all‑original‑mating‑drive‑board‑assemblies installed
• After‑board‑swap‑completion execute full‑drive‑self‑diagnostic‑test before restoring‑production‑operation
• Visually inspect for bulging‑capacitor‑damage signs when fault‑conditions occur on‑auxiliary‑power‑rail