描述
产品概述
Bently Nevada 125720-01是一款4通道继电器输入/输出模块，专为工业自动化和机械保护系统设计，属于3500系列监测系统的核心组件。其核心功能包括信号转换、逻辑控制、报警驱动及设备保护，适用于电力、石化、冶金、机械制造等领域的高可靠性工业场景。
技术参数
基础参数
通道数量：4个独立继电器输出通道（SPDT类型）
工作电压：24 V DC（部分型号支持扩展至125 V DC）
负载能力：支持数安培电流，适配工业设备控制需求
通信接口：支持RS-232/485、以太网等，兼容3500系列其他模块
防护等级：IP65（部分型号）
环境适应性：
工作温度：-30°C至+65°C（标准型），部分型号支持-40°C至+85°C
湿度范围：5%至95%（非冷凝）
物理特性
尺寸：35 cm×3 cm×10 cm（标准模块）或300 mm×200 mm×100 mm（扩展型号）
重量：0.25 kg至2 kg（依型号而定）
核心功能特点
继电器控制与逻辑编程
独立通道配置：每个继电器输出可独立编程，支持AND/OR逻辑组合，适配复杂控制需求。
报警驱动：基于警报输入（如设备异常状态、危险信号）触发继电器动作，实现联锁保护。
表决逻辑：支持多通道信号组合表决，增强系统可靠性。
工业级设计
抗干扰能力：环氧树脂密封封装，抗振动、冲击及电磁干扰。
冗余支持：可配置冗余系统，确保主模块故障时备用通道接管功能。
集成与扩展
模块化兼容性：与Bently 3500系列其他模块（如瞬态数据接口模块、监测器模块）无缝集成，支持灵活扩展。
软件配置：通过3500机架配置软件编程，适配不同应用场景需求。
诊断与维护
实时监控：内置诊断功能，可检测继电器状态并生成报警信息。
热插拔维护：支持在线更换，减少系统停机时间。
典型应用场景
工业自动化
控制生产线设备启停、联锁操作及信号中继。
机械保护
监测涡轮机、压缩机、泵等旋转设备的振动、位移参数，触发保护停机。
电力系统
实现过载保护、短路保护及电网设备状态监控。
安全系统
集成火灾报警、安全门控制等安全相关功能。
技术优势
高可靠性：通过API 670标准认证，适用于严苛工业环境。
灵活配置：支持自定义逻辑和触发条件，适配多样化需求。
低维护成本：模块化设计简化故障排查与更换流程。
167699-02
167699-02
Product Overview
Bently Nevada 125720-01 is a 4-channel relay input/output module designed for industrial automation and mechanical protection systems and is a core component of the 3500 series monitoring system.Its core functions include signal conversion,logic control,alarm drive and equipment protection,and are suitable for high-reliability industrial scenarios in the fields of electricity,petrochemical,metallurgy,mechanical manufacturing,etc.
Technical parameters
Basic parameters
Number of channels:4 independent relay output channels(SPDT type)
Operating voltage:24 V DC(some models support expansion to 125 V DC)
Load capacity:supports several ampere current,adapts to industrial equipment control requirements
Communication interface:Supports RS-232/485,Ethernet,etc.,compatible with other modules of 3500 series
Protection level:IP65(some models)
Environmental adaptability:
Operating temperature:-30°C to+65°C(standard model),some models support-40°C to+85°C
Humidity range:5%to 95%(non-condensing)
Physical characteristics
Dimensions:35 cm×3 cm×10 cm(standard module)or 300 mm×200 mm×100 mm(extended model)
Weight:0.25 kg to 2 kg(depending on model)
Core functional features
Relay control and logic programming
Independent channel configuration:Each relay output can be independently programmed,supports AND/OR logic combination,and adapts to complex control needs.
Alarm driver:triggers the relay action based on alarm input(such as equipment abnormal status,dangerous signals)to achieve interlock protection.
Voting logic:Support multi-channel signal combination voting to enhance system reliability.
Industrial design
Anti-interference ability:Epoxy resin sealed packaging,anti-vibration,impact and electromagnetic interference.
Redundancy support:The redundant system can be configured to ensure the backup channel takeover function in the event of a main module failure.
Integration and Extension
Modular compatibility:seamlessly integrates with other Bently 3500 series modules(such as transient data interface modules,monitor modules)and supports flexible expansion.
Software configuration:It is programmed through 3500 rack configuration software to adapt to the needs of different application scenarios.
Diagnosis and maintenance
Real-time monitoring:built-in diagnostic function,can detect the status of the relay and generate alarm information.
Hot-swap maintenance:supports online replacement to reduce system downtime.
Typical application scenarios
Industrial automation
Controls start-stop,interlocking operation and signal relay of production line equipment.
Mechanical protection
Monitor the vibration and displacement parameters of rotating equipment such as turbines,compressors,pumps,etc.,and trigger protective shutdown.
Power system
Implement overload protection,short circuit protection and grid equipment status monitoring.
Safety system
Integrate safety-related functions such as fire alarm,safety door control,etc.
Technical Advantages
High reliability:passed the API 670 standard certification,suitable for harsh industrial environments.
Flexible configuration:supports custom logic and trigger conditions,adapt to diverse needs.
Low maintenance cost:Modular design simplifies troubleshooting and replacement processes.
