149992-02 16-Channel Failsafe Relay Output Module

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	149992-02
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 149992-02 16-Channel Failsafe Relay Output Module is a full-height module designed for industrial automation within the Bently Nevada 3500 Series. The module provides 16 SPDT relay outputs with epoxy-sealed construction and 250 Vrms arc suppression, each rated for 10,000 cycles. The 149992-02 consumes 5.8 W typical and fits in a single full-height rear slot. Each relay can switch up to 5 A, 125 Vdc (70 W @ 24 Vdc, 10 W @ 48 Vdc, 9 W @ 60 Vdc) or 5 A, 250 Vac (1200 VA). Front panel LEDs indicate OK, TX/RX communication, and channel alarm status. Relays are organized in four groups of four channels and are selectable for Normally De-energized (ND) or Normally Energized (NE) operation. Each output is independently programmable for alarm drive logic using AND/OR configurations with monitored variables. The 149992-02 integrates seamlessly with 3500 racks, enabling reliable alarm signaling, machinery shutdown, and voting logic implementation while providing clear visual feedback via LEDs. Programming and configuration are done using the 3500 Rack Configuration Software, supporting up to 16 monitored channels per module.

Applications

Signal Relay for Alarm Outputs
The 149992-02 converts monitored channel statuses into relay outputs, handling up to 5 A current per channel. Each of its 16 SPDT relays can switch 70 W @ 24 Vdc or 1200 VA @ 250 Vac, allowing operators to trigger alarms or automated shutdowns precisely when monitored variables exceed alert or danger thresholds.

Voting Logic for Machinery Protection
Using the programmable alarm drive logic in 149992-02, operators can implement AND/OR voting for multiple channels. For example, a shutdown can be programmed to trigger only when at least 2 out of 16 monitored channels surpass danger setpoints, ensuring accurate protection without false trips.

Direct Control of External Devices
Each relay in the 149992-02 supports Normally De-energized (ND) or Normally Energized (NE) configurations, enabling direct activation of external actuators, solenoids, or alarm circuits. With a 10,000-cycle rating, the module maintains high operational performance over extended use.

Integration with 3500 Racks
The 149992-02 occupies a single full-height rear slot and communicates via TX/RX LEDs with other 3500 modules. This allows centralized control of multiple machine parameters, reducing cabling complexity and streamlining automation.

Specifications

Competitive Advantage

High-Power Switching Capability
The 149992-02 supports 5 A maximum current and up to 1200 VA AC power per relay, providing enough capacity for heavy industrial loads without additional relays.

Programmable Alarm Drive Logic
Each of the 16 relays in 149992-02 can be configured using AND/OR logic with inputs from any monitor channel, enabling complex automated alarm sequences without extra PLC programming.

Visual Channel Status Indicators
Front panel OK, TX/RX, and CH Alarm LEDs on 149992-02 deliver real-time operational feedback. Operators can instantly verify module function and channel alarm status, reducing troubleshooting time.

Configurable Failsafe Operation
Relays in 149992-02 can be set as Normally De-energized or Normally Energized. Combined with 10,000-cycle lifetime, this ensures safe operation and controlled shutdowns in critical automation systems.

Compact Rack Integration
With a single full-height rear slot requirement, the 149992-02 allows deployment of multiple modules in a 3500 rack. Its epoxy-sealed construction and 250 Vrms arc suppression ensure reliable operation in harsh industrial environments.