3500 Monitoring System Rack Bently Nevada

3500 Monitoring System Rack Bently Nevada

Installation and Maintenance Manual Bently Nevada™ Asset Condition Monitoring

3500 Monitoring System Rack Configuration and Utilities Guide (129777-01) 

 • guidelines for using the 3500 Rack Configuration software for setting the operating parameters of the module 

 • guidelines for using the 3500 test utilities to verify that the input and output terminals on the module are operating properly 3500 Monitoring System Computer Hardware and Software Manual (128158-01) 

 • instructions for connecting the rack to 3500 host computer 

 • procedures for verifying communication 

 • procedures for installing software 

 • guidelines for using Data Acquisition / DDE Server and Operator Display Software 

 • procedures and diagrams for setting up network and remote communications 3500 Field Wiring Diagram Package (130432-01) 

 • diagrams that show how to hook up a particular transducer 

 • lists of recommended wiring Operation and Maintenance Manuals for all the modules installed in the rack

3500 Monitoring System Rack Installation and Maintenance Manual 

 • Triplicate alarm voting logic and circuitry • Triplicate relay voting logic and control circuitry • Duplicate processing of alarm information from monitors in the rack 2.4.3.3 2.4.3.4 1. 2. TMR Relay Module A 3500/34 TMR Relay Module consists of 2 half-height monitors and 1 full size I/O module. The 2 monitors have identical configurations and perform the same monitoring function redundantly. The I/O module contains triplicate relays and control logic. Inside a TMR Rack Refer to Figure 2-7 for the organization of a TMR rack.

TMR Relay Module 

A 3500/34 TMR Relay Module consists of 2 half-height monitors and 1 full size I/O 

module. The 2 monitors have identical configurations and perform the same 

monitoring function redundantly. The I/O module contains triplicate relays and 

control logic. 

Inside a TMR Rack 

Refer to Figure 2-7 for the organization of a TMR rack. 

Dual 3500 power supplies Independently supply redundant power to each component in the system 

TMR Monitor group. Each Channel's status is determined independently in each monitor 

Triplicate transducers monitor a single point.  Typical for 4 channels. (Discrete transducer inputs 

shown) 

2 3500/34 half-height cards process alarm events from the other monitor cards in duplicate. 

TMR Relay I/O module has triplicate relay logic 

TMR Relay I/O module features 2 out of 3 relay voting 

3500/34 TMR relay module.

Intrinsic Safety — The 3500 Internal Barrier System To provide Intrinsically Safe (IS) vibration and process variable monitoring, the 3500 system has a range of I/O modules with internal zener barriers. When you install these modules in a 3500 rack with a 3500/04-01 Earthing Module, they provide an integrated solution for explosion protection for approved Bently Nevada transducer systems that are located within all classifications of hazardous areas (surface industries other than mining). 2.5.1 3500 Internal Barrier System Restrictions   • You must install 1 earthing module in each rack in the internal barrier system. The earthing module occupies 1 slot position in the rack when it uses Internal Barrier I/O modules. • You must change the grounding configuration of the 3500/15 Power Supplies from the default factory setting. See the 3500/15 Operation and Maintenance Manual (PN 129767-01) for instructions. • You must isolate any RS-232 connection to any 3500 module.  Monitors that support RS232 connections include Rack Interface Modules, Communication Gateways, and the 3500/95 PC Display. See the 3500/20 Operation and Maintenance Manual  (PN 129768-01) for instructions. This restriction does not apply to RS422 and RS485 connections to the rack.   Monitors that support RS422 and/or RS485 connections include the 3500/20, 3500/90, 3500/92, 3500/93, and 3500/95. • You must not use the 3500/94 VGA Display in internal barrier systems. • You must not use bussed transducers, as internal barrier systems do not allow bussed transducers.  See the TMR section of this manual for more information. 2.5.2 3500 Internal Barrier System Features • The earthing module supports dual IS Earth connections for cables with cross-sectional areas up to 10 mm2. This module lets you test IS Earth continuity online. • The design of the internal barrier I/O modules provides the 2 inches (50 mm) of separation required between safe and hazardous area field wiring. • The connectors for safe areas and hazardous areas have different field wiring colors (green for safe and blue for hazardous) and connector pitches. This helps to avoid incorrect field wiring installation.   • Quick connect/disconnect connectors simplify field wiring installation and removal.