Bently Nevada 149986-01 3500/33 Spare 16-Channel Relay Control Module

Description

The 149986-01 is a spare full-height front module component designed for the 3500/33 16-Channel Relay Module within the 3500 Series Machinery Protection System. This module provides the core control logic and driving functions necessary to manage 16 independent relay outputs used for critical machinery alarms and voting logic configurations. It slots directly into any front chassis location to the right of the Transient Data Interface (TDI) Module and works in combination with a rear-mounted I/O module to interface with external field wiring. The 149986-01 processes inputs from monitor channels within the rack and utilizes programmable Alarm Drive Logic, supporting both AND and OR operations based on individual measured variables, alert or danger statuses, and Not-OK conditions.

Features

• Processes individual or combined monitor channel variables to drive complex alarm logic.
• Fully programmable voting logic configurations manageable via the 3500 Rack Configuration Software.
• Front panel status indicators including a dedicated OK LED for system health and a TX/RX LED for rack communication monitoring.
• Provides high-density alarm capability within a single full-height front slot of the 3500 rack chassis.
• Seamless integration into functional safety systems requiring restricted voltage outputs.

Applications

• High-density alarm and voting logic processing in industrial turbomachinery protection systems.
• Critical refinery asset protection requiring automated shutdown or alert notification control.
• Power generation gas and steam turbine safety voting networks.
• Functional safety (SIL) automated monitoring environments.

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Chassis Slot Placement: Install the 149986-01 control module strictly in a front full-height slot located to the right of the rack's Transient Data Interface (TDI) module.
• No Hot Insertion: Do not hot insert the module under any circumstances. Ensure rack power is isolated or disconnected prior to servicing to prevent module damage.
• Software Version Control: Verify that the 3500 Rack Configuration Software is updated to version 3.3 or later, and Data Acquisition Software is at version 2.40 or later before provisioning.
• Electrostatic Discharge (ESD): Always utilize a grounding wrist strap when handling the control module to prevent static discharge from damaging sensitive internal microelectronics.

Compliance and Certifications

• FCC: Complies with part 15 of the FCC Rules.
• EMC Directives: 2014/30/EU (Standards: EN 61000-6-2, EN 61000-6-4).
• Electrical Safety: Low Voltage Directive 2014/35/EU (Standard: EN 61010-1).
• RoHS: ROHS Directive 2011/65/EU.
• Maritime: DNV GL rules for classification (Ships, offshore units, high speed and light craft); ABS Rules for Condition of Classification Part 1 (Steel Vessels, Offshore Units and Structures).
• Hazardous Area Approvals: Class I, Zone 2 (AEx/Ex nA nC ic IIC T4 Gc / AEx/Ex ec nC ic IIC T4 Gc); Class I, Division 2, Groups A, B, C, and D.
• ATEX/IECEx: Ex II 3 G (Ex nA nC ic IIC T4 Gc / Ex ec nC ic IIC T4 Gc).