3500/15 Bently Nevada AC and DC Power Supply Module

Configured for power conversion and rack power distribution in the Bently Nevada 3500 Series Machinery Protection System, the Bently Nevada 3500/15 (3500/15 AC and DC Power Supply Module) provides direct electrical power input processing for installed 3500 rack modules. The module operates with a corresponding Power Input Module (PIM) and supports single or redundant power supply configurations. Depending on the configuration, it accepts universal AC, high voltage DC, or low voltage DC input power.

Hardware Specifications

Machinery Protection Power Architecture

The 3500/15 supports the electrical infrastructure required by Bently Nevada machinery monitoring systems. The power supply module distributes regulated operating power to the installed rack electronics while the associated PIM provides the external power input interface.

In redundant configurations, the lower supply operates as the primary source and the upper supply provides backup capacity. Consequently, either module can support complete rack operation independently. This arrangement allows maintenance activities without interrupting rack operation when the second supply remains energized.

The power supply architecture supports machinery protection functions associated with eddy-current probe scaling, gap voltage validation, rotor dynamics monitoring, and other installed monitoring modules. For proximity measurement applications, the monitoring system can process gap voltage values associated with -10 VDC target conditions according to the configured transducer system.

Frequently Asked Questions (FAQ)

Q: Can two Bently Nevada 3500/15 power supplies operate in the same rack?
A: Yes. The 3500 rack can accommodate two power supplies in any combination of supported AC or DC configurations. The lower slot operates as the primary supply, while the upper slot provides redundant backup operation.

Q: Does removing one power supply interrupt rack operation?
A: No, provided that a second redundant power supply remains active and capable of powering the complete rack. The 3500/15 supports power supply insertion and removal without interrupting rack operation under this redundant condition.

Q: What does the Supply OK LED indicate?
A: The front panel Supply OK LED indicates that the power supply is operating normally and delivering the required output voltages.

Field Installation Guidelines

Install the 3500/15 Power Supply Module only in the designated power supply slots located at the extreme left side of the 3500 rack.

Verify that the Power Input Module matches the installed power supply configuration before connecting external AC or DC power.

Disconnect or isolate the external input source before servicing the PIM wiring or replacing a non-redundant power supply.

When redundant operation is required, install and energize the second supply before removing the active module. This procedure maintains continuous rack power during module replacement.

Route AC and DC input wiring separately from low-level transducer and signal wiring where practical. In addition, follow the applicable rack grounding and shielding requirements to reduce electrical interference.

Confirm the input voltage range against the installed configuration before energizing the rack. Hazardous area installations must also use the configuration and approval option specified for the installation environment.