Bently Nevada 3500/01-01 Rack Configuration Software

Bently Nevada 3500/01-01 Rack Configuration Software

The 3500 System provides continuous, online monitoring suitable for machinery protection applications, and is designed to meet the requirements of the American Petroleum Institute's API 670 standard for such systems. The system's modular rack-based design includes the following components:

l 3500/05 Instrument Rack (required)
l One or two 3500/15 Power Supplies (required)
l 3500/22M Transient Data Interface (TDI) Module (required)
l One or more 3500/XX Monitor Modules (required)
l One or more 3500/32M (4-channel) or 3500/33 (16-channel)
Relay Modules (optional)
l One or two 3500/25 Keyphasor* Modules (optional)
l One or more 3500/92 Communication Gateway Modules
(optional)
l Input/Output (I/O) Modules (required)
l 3500/94M VGA Display (optional)
l Internal or external intrinsic safety barriers, or galvanic isolators
for hazardous area installations (optional)
l 3500 System Configuration Software (required)

System components are described in more detail in the following section and in their individual datasheets.

 

The standard 3500 Rack is available in 19" EIA rail-mount, panel-cutout-mount, and bulkhead-mount versions.

Figure 1: 19" EIA Rail or Panel Mount Version

The rack provides slots for two Power Supplies and a TDI in the left-most rack positions that are reserved exclusively
for these modules. The remaining 14 slots in the rack can accommodate any combination of monitor, display, relay,
Keyphasor module, and communication gateway modules.

All modules plug into the rack's backplane and consist of a main module and an associated I/O module. The I/O module
installs at the rear of the rack for panel-mount systems, and above the main module for bulkhead-mount systems.

Standard rack depth is 349 mm (13.75 inches), while bulkhead mount rack depth is 267 mm (10.5 inches). NEMA 4 and
4X weatherproof housings are available when required for environmental protection or when purge air is used.
 

Figure 2: Bulkhead Mount Version

Mini Rack

A mini rack (12" wide instead of 19") is also available and features 7 available monitor slots instead of 14. Like its larger counterpart, the left-most slots are reserved for the Power Supply or Supplies and TDI Module.

The mini rack may be mounted in a panel cutout or, using an optional adapter plate, on 19" EIA mounting rails. Bulkhead mounting is not available.

 

The TDI is the 3500 Rack's primary interface to the configuration, display, and condition monitoring
software. Each rack requires one TDI, located in the rack slot immediately adjacent to the power supply
slot.
The TDI supports a proprietary protocol used by the 3500 Configuration Software to configure the rack and
the 3500 Operator Display Software to retrieve rack data and statuses.
The TDI also provides a direct interface with System 1* Condition Monitoring and Diagnostic software
without the need for an external communications processor.
The Rack OK relay is located within the TDI's I/O module. It is driven by NOT OK conditions within the
TDI itself and within other modules in the rack.

 

The TDI supports self-monitoring functions both for itself and for the rack, in addition to those provided by the individual monitor, relay, communications, and other modules. While the TDI provides certain functions common to the entire rack, it is not part of the critical monitoring path and its machinery protection functions.

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Monitor Module Footnotes

1. Only standard differential expansion capabilities provided. For ramp differential expansion and complementary
input differential expansion, use the 3500/45 Position Monitor, instead.
2. The 3500/42M provides individual 4 to 20 mA proportional outputs for each channel. The 3500/40M does NOT
provide 4 to 20 mA outputs.
3. The monitor channels are programmed in pairs and can perform up to two of these functions at a time. Channels
1 and 2 can perform one function, while channels 3 and 4 perform another (or the same) function.
4. Channels configured for velocity or acceleration provide only direct amplitude. Channels configured for Velocity
II or Acceleration II provide 1X amplitude/phase and 2X amplitude/phase and bias voltage in addition to direct
amplitude.
5. Any vibration channel can be configured for conventional "pie-shaped" acceptance region alarms. When
configured for circular acceptance regions, circular (rather than pie-shaped) acceptance region alarms can be
enabled. Refer to the 3500/42M Operations/Maintenance Manual for additional information, or contact your
nearest sales professional.
6. Only channels 3 and 4 can be used for Case Expansion measurements.
7. The 3500/46M provides frequency response characteristics suitable for use on machines with very slow
rotational speeds, such as hydraulic turbine/generator sets, which often operate at speeds of 100 RPM or lower.
Also, special signal conditioning and tracking filtering is provided, allowing detection of rough load zone
operation, shear pin failure, and other hydro-specific conditions.
8. The 3500/50M is not intended for use in overspeed protection applications. Use the 3701/55 Emergency
Shutdown (ESD) system, instead.
9. Both Zero Speed and Reverse Rotation channel types require both channels of the 3500/50 module, making it a
single-channel monitor when used in these configurations.
10. The 3500/60 and 3500/61 provide identical functions except the 3500/60 does not provide 4 to 20 mA
proportional outputs. When these outputs are required, use the 3500/61.
11. The 3500/62 is designed to accept static proportional signals such as 4 to 20 mA, 1 to 5 Vdc, or any static
proportional voltage signal between –10 and +10 Vdc. When dynamic signals (i.e., those where waveform
information is required) are used, a 3500/40M or 3500/42M can often be programmed as a custom channel type,
making the 3500 system compatible with virtually any static or dynamic signal from pressure, level,
temperature, vibration, flow, position, speed, or other transducers. Consult the factory or your local Bently
Nevada sales professional for more information.
12. The 3500/64M is primarily intended for monitoring combustor pressure pulsation instabilities ("humming") in gas
turbines.

Every module (Monitor, Keyphasor, Power Supply, Communication Processor, etc.) requires a corresponding I/O module. Main modules connect to the backplane inside the rack, and I/O modules connect with the other side of the backplane, behind their associated main modules. For bulkhead-mounted racks, only, each I/O module connects to the face of the backplane above its associated main module.

Figure 3: Mini Rack Front View – Main Modules

Figure 4: Mini Rack Back View – I/O Modules

For applications where the transducers are installed in a hazardous area, the 3500 System can be used with internal or
external intrinsic safety barriers.
Internal safety barriers are generally preferred to external barriers because this option saves cost, requires no extra
cabinet space, and needs no additional wiring. Internal barriers also improve safety because the connections are prewired, reducing the possibility for errors introduced by wiring external connections between monitors and barriers.
Internal barriers also improve quality because, unlike external barriers, they require no special monitor scale factor
calibration to compensate for voltage drop across the barrier. For additional information, refer to the 3500 Internal
Barriers Datasheet, 141495-01.
If galvanic isolators are required to address your specific intrinsic safety requirements, pre-engineered external galvanic
isolators and an appropriate housing are available. For additional information, refer to the 3500 Galvanic_Isolator
Interface Datasheet, 141714-01.

Simplifies 3500 system configuration and commissioning

Reduces setup and maintenance time

Supports customized alarm and protection strategies

Enables easy configuration backup and restoration

Improves machinery monitoring efficiency

Enhances operational reliability and system management

Essential for 3500 rack deployment and maintenance

Complete Rack Configuration Capability

The software allows users to configure all major components within a 3500 rack, including monitoring modules, power supplies, communication interfaces, and relay modules.

Flexible Alarm Management

Users can define alarm setpoints, danger levels, delays, voting logic, and notification settings according to machine protection requirements.

Easy System Commissioning

The intuitive software interface streamlines startup procedures, reducing engineering effort during installation and commissioning.

Configuration Backup and Recovery

The software supports configuration storage and restoration, helping users quickly recover system settings after maintenance or hardware replacement.

Enhanced System Reliability

By enabling precise system setup and validation, the software helps ensure consistent monitoring performance and equipment protection.

Avoid excessive bending or twisting of cables.

Keep connectors clean and dry during installation.

Ensure proper grounding practices.

Do not exceed specified operating temperature limits.

Inspect cables and connectors regularly during maintenance intervals.

Verify compatibility before replacing existing components.

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