描述
BENTLY 3500/50 286566-02是一款高性能的转速测量模块，专为工业自动化和机械保护系统设计，广泛应用于发电、石化、冶金等领域。以下是其核心功能与技术特点的综合解析：
一、核心功能
转速与加速度测量
支持两通道输入，可接收涡流传感器（如3300系列、7200系列）或磁传感器信号，测量轴转速、转子加速度及方向。
测量范围广，支持低至0.0039 Hz（1 rpm）的低速和高达25 kHz的高速信号。
报警与保护逻辑
可组态为以下三种模式：
速度监测：设置单点或速度带报警。
零转速指示：检测机器停机状态。
转子加速度报警：监测转速变化率异常。
支持延迟报警（1-60秒或0.1-60秒）和峰值保持功能（记录最高转速或反转次数）。
系统集成与冗余
可向3500框架背板提供键相位信号，替代独立键相位模块。
支持三重模块冗余（TMR）组态，输入阻抗可配置为20 kΩ（标准）、40 kΩ（TMR）或7.15 kΩ（内部安全栅）。
二、技术规格
输入信号：+10.0 V至-24.0 V，超出范围时内部受限。
功耗：5.8 W（典型值）。
传感器兼容性：Bently Nevada 3300/7200系列涡流传感器、3300RAM及磁传感器。
防护能力：符合API 670标准，支持本质安全设计（内部安全栅选项）。
三、组态与配置
使用3500框架组态软件进行编程，可灵活设置报警阈值、继电器输出逻辑及数据记录参数。
支持数字与模拟输出（4-20 mA），适用于数据采集、趋势分析或显示。
四、应用场景
发电领域：汽轮机、燃气轮机转速监控。
石油化工：压缩机、泵等旋转设备保护。
冶金行业：风机、轧机运行状态监测。
BENTLY 3500/50 286566-02 is a high-performance speed measurement module designed for industrial automation and mechanical protection systems.It is widely used in power generation,petrochemical,metallurgy and other fields.The following is a comprehensive analysis of its core functions and technical features:
I.Core functions
Speedand acceleration measurement
Supports two-channel input,can receive eddy current sensor(such as 3300 series,7200 series)or magnetic sensor signals,and measure shaft speed,rotor acceleration and direction.
The measurement range is wide,supporting low speeds as low as 0.0039 Hz(1 rpm)and high-speed signals up to 25 kHz.
Alarm and protection logic
Can be configured into the following three modes:
Speedmonitoring:set single point or speed band alarm.
Zero speed indication:detect machine shutdown status.
Rotor acceleration alarm:monitor abnormal speed change rate.
Supports delayed alarm(1-60 seconds or 0.1-60 seconds)and peak hold function(record the highest speed or number of reversals).
System Integration and Redundancy
Provides keyphase signals to the 3500 frame backplane,replacing standalone keyphase modules.
Supports triple module redundancy(TMR)configuration,with input impedance configurable to 20 kΩ(standard),40 kΩ(TMR),or 7.15 kΩ(internal safety barrier).
II.Technical Specifications
Input signal:+10.0 V to-24.0 V,internally limited when out of range.
Power consumption:5.8 W(typical).
Sensor compatibility:Bently Nevada 3300/7200 series eddy current sensors,3300RAM,and magnetic sensors.
Protection capability:API 670 compliant,intrinsically safe design supported(internal safety barrier option).
III.Configuration and Configuration
Programming with the 3500 frame configuration software allows flexible setting of alarm thresholds,relay output logic,and data logging parameters.
Supports digital and analog outputs(4-20 mA)for data acquisition,trend analysis,or display.
IV.Application scenarios
Power generation:steam turbine and gas turbine speed monitoring.
Petrochemical:compressor,pump and other rotating equipment protection.
Metallurgical industry:fan and rolling mill operation status monitoring.
