Description
Kollmorgen PRDRHP720SNZ‑65
Technical Specifications: Three‑phase 208‑240 VAC input, 50‑60 Hz; DC‑bus output voltage 310 VDC; maximum output power 7.2 kW; integrated brake‑chopper circuit; external regeneration‑resistor connection terminals; fault‑relay output contact; operating temperature 0‑50 °C; storage temperature‑20‑85 °C; humidity 5‑95 % RH non‑condensing; eurocard standard rack‑plug‑in module; weight 2.8 kg.
Functional Features: Multi‑axis shared DC‑bus power supply; built‑in brake‑chopper for regenerative‑energy dissipation; input phase‑loss detection function; DC‑bus over‑voltage protection; hardware over‑current and over‑temperature protection; fault‑signal‑relay output to upper‑level system.
Application Scenarios: Vintage multi‑axis servo‑rack systems, old‑style machine‑tool multi‑axis motion‑platforms, imported complete automation‑equipment spare‑part replacement.
Performance Parameters: I²T thermal overload protection; hardware detection for input phase‑loss, bus over‑voltage, bus under‑voltage and internal over‑temperature; realize energy exchange among multiple servo axes under shared‑bus working‑mode.
Material Composition: Metal eurocard rack‑plug‑in housing; high‑power rectifier‑bridge module; IGBT brake‑chopper component; high‑voltage flame‑retardant PCB circuit board; metal heat‑sink fins; gold‑plated back‑plane‑connector pins.
Structural Features: Eurocard standard rack‑plug‑in module; front‑panel status‑LED indicators; rear‑side gold‑plated back‑plane‑connector mating with system‑rack back‑plane; metal heat‑sink fins on side‑surface; convection‑cooling without built‑in fan.
Working Principle: Three‑phase AC power passes through high‑power rectifier‑bridge and outputs stable DC‑bus voltage to system‑rack back‑plane, supplying DC power for multiple servo‑amplifier modules. When motor‑regenerative‑energy raises DC‑bus voltage, internal brake‑chopper component turns‑on to release surplus energy to external regeneration‑resistor. Hardware circuits continuously monitor input‑power status, bus‑voltage and module‑internal temperature, output fault‑alarm‑signal upon abnormality.
Installation Requirements: Insert fully into standard eurocard‑rack slot to guarantee good contact of gold‑plated pins; maintain good ventilation inside rack cabinet; select external regeneration‑resistor with correct resistance‑value and power‑rating; connect rack protective‑earth terminal to cabinet grounding‑bar reliably.
Usage Notes: Live plug‑in and pull‑out of power‑supply module is strictly prohibited; DC‑bus carries high‑voltage energy after power‑off, wait for full discharge before maintenance; total load of connected servo‑amplifiers cannot exceed module rated‑power‑capacity; spare‑part replacement shall verify hardware‑revision‑version.
