Bently Nevada 3500/15 Power Supply: Detailed Specifications and Operational Insights
Understanding Input Voltage Options
The Bently Nevada 3500/15 Power Supply offers diverse input voltage options, accommodating various industrial power sources. Engineers need to select the correct input module:
- Legacy High Voltage AC: Supports 220 Vac nominal, with a range of 175 to 264 Vac rms.
- Legacy Low Voltage AC: Handles 110 Vac nominal, with a range of 85 to 132 Vac rms.
- Universal Voltage AC: Provides the widest range, 85 to 264 Vac rms, ideal for global installations.
DC Input Characteristics and Protection
For DC applications, the 3500/15 supports:
- High Voltage DC: 88 to 140 Vdc.
- Low Voltage DC: 20 to 30 Vdc.
The system integrates out-of-range protection:
- Under-voltage: Conditions do not harm the power supply.
- Over-voltage: Triggers the Power Input Module's (PIM) fuse, protecting the system.
Analyzing Full Rack Current Draw
The full rack current draw varies based on input voltage type:
- High Voltage AC: Up to 2.3 A rms.
- Low Voltage AC: Up to 4.5 A rms.
- Universal Voltage AC: Up to 2.8 A rms.
- High Voltage DC: Up to 2.5 A.
- Low Voltage DC: Up to 10.0 A, the highest draw.
Careful consideration ensures proper power distribution and circuit sizing.
Output Indicators and Operational Status
The front panel features a "Supply OK" LED indicator, providing immediate visual feedback on operational status. This simplifies troubleshooting and minimizes downtime.
Legacy vs. Universal Compatibility Considerations
Compatibility varies between legacy and universal modules:
- Legacy High Voltage AC: Requires 175 to 250 Vac rms.
- Legacy Low Voltage AC: Operates on 85 to 125 Vac rms.
- Universal AC Power Supply: Not compatible with legacy units.
Critical factors must be considered during upgrades or replacements.
Practical Implications for System Design
During 3500 system design, engineers must:
- Select appropriate power supply and PIM: Based on available power source and current draw requirements.
- Plan carefully: Ensures system stability and reliability.
Redundant power supplies are recommended for critical applications to maximize system uptime and prevent costly errors.
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