HVE03.2-W030N

What are the implications of using the HVE03.2-W030N by Bosch Rexroth Indramat in drive systems requiring frequent deceleration (regeneration)?

The unit has a 100 kW regenerated (bleeder) peak power capability so it can absorb large energy influxes during braking, but since it's an unregulated DC bus (HVE type), all regenerated energy is dissipated via its bleeder resistor rather than fed back to the mains. This means for systems with very frequent or very large regen events, you’ll need good cabinet cooling and possibly external bleeder devices or design adjustments to avoid overheating.

At what ambient temperature or operating elevation does the HVE03.2-W030N require derating?

The unit is rated for 5 °C to 45 °C ambient and up to 1000 meters elevation without derating; outside those ranges, the manufacturer advises applying “load factors”—i.e. reducing its output capability to maintain safety and reliability.

How does internal air cooling with a built-in blower influence cabinet design and maintenance?

Forced‐air cooling helps keep the heatsinks and internal components within spec under load, but requires sufficient airflow inlet/outlet in the cabinet; the blower itself must be accessible or replaceable and may require periodic cleaning. Also, since regenerated heat is dumped internally (especially via the bleeder), ensure thermal management so cabinet ambient temperature doesn't exceed limits.

Can multiple drive controllers (e.g. HDD / HDS) be powered by one HVE03.2-W030N unit, and what are the wiring/communication considerations?

Yes; Bosch Indramat HVE PSUs are designed to power multiple HDD/HDS drive controllers off a common unregulated DC bus and share the control voltage via dedicated bus terminals (X1 etc.). Wiring must ensure low voltage drop, proper grounding, and that the control voltage bus is kept intact; distances and layout affect voltage drop and response

What are the safety implications of the internal contactor and mains separation in the HVE line units?

These units include an internal mains contactor that isolates the drive controllers from the AC supply once control voltage conditions or safety interlocks require shutdown, offering a safety separation; but for full safety compliance, external safety circuits, emergency stops, and proper protective devices must supplement this. Also because unit surfaces and heatsinks can become hot under load/regeneration, adequate guarding is needed

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HVE3.2-W030N

The Bosch Rexroth Indramat HVE03.2-W030N is a power supply unit with a 30 kW rated power, designed for industrial applications. It operates with an input voltage of 380-480V AC and a DC bus voltage range of 531-670V DC. Featuring internal air cooling, it efficiently supports automation systems in environments with temperatures ranging from 5°C to 45°C.