Bently Nevada 126632-01 3500/45 Bussed TMR Position I/O Module

Description

The Bently Nevada 126632-01 is a Bussed Triple Modular Redundant (TMR) Position Input/Output Module designed for rear-slot installation in a 3500 Series machinery protection rack. Operating in conjunction with the 3500/45 Position Monitor, the 126632-01 conditions signal inputs from proximity transducers to provide continuous machinery protection, axial thrust measurement, differential expansion, and vibration monitoring for critical rotating assets. The module connects to External Termination Blocks to route signal inputs and recorder outputs, ensuring high availability and fault-tolerant operation in fault-critical applications.

Features

• Bussed TMR Support: Enables Triple Modular Redundant processing across three monitor channels for fault-tolerant operation.
• External Termination Design: Utilizes external termination blocks and cabling to simplify field wiring and maintain rack modularity.
• Proximitor Compatibility: Specialized interface dedicated for use with Proximitor transducer inputs.
• Full-Height Form Factor: Designed for direct insertion into a single full-height rear rack slot of a 3500 system.

Applications

• Turbine axial (thrust) position monitoring
• Single and dual ramp differential expansion measurement
• Complementary Input Differential Expansion (CIDE)
• Industrial rotating equipment protection in power generation, oil & gas, and petrochemical plants

Technical Specifications

Installation Guidelines

• Rack Mounting: Install the module into a single full-height rear slot corresponding to the associated 3500/45 Position Monitor front card.
• Cabling: Use dedicated 3500 transducer signal cables (129525-AXXXX-BXX series) to connect the module to the external termination block.
• External Terminations: Required external termination blocks (such as 132242-01 or 132234-01) and cables must be ordered separately.
• System Requirements: Ensure the 3500 Rack Interface Module (RIM) firmware is revision G or later and 3500 Configuration Software version 2.41 or higher is installed.

Compliance and Certifications

• CSA/NRTL/C: Class 1, Div 2, Groups A, B, C, D; T4 @ Ta = -20 degC to +65 degC (-4 degF to +150 degF); Certification CSA 150268-1002151 (LR 26744)
• CE Mark Directives: EMC Directives EN 61000-6-4, EN 55011 Class A, EN 61000-6-2, EN 61010-1