描述
产品概述
ALSTOM VIIB16-C是一款铁路信号联锁系统输入模块,属于ALSTOM ViViD系列,专为轨道交通安全控制设计。其核心功能是采集轨道电路、信号机、道岔等设备的状态信号,并将其传输至联锁控制系统进行逻辑处理。该模块以高安全性、高可靠性为核心特点,符合铁路行业标准(如EN 50126/50128/50129)。
核心参数与技术特点
1.物理特性
模块类型:安全输入模块(VIIB),支持16路独立安全输入通道。
接口形式:
输入类型:干接点或安全继电器触点(如SPST/SPDT)。
电压范围:24V DC(±10%),兼容铁路信号系统标准。
尺寸与安装:
标准19英寸机架安装,模块高度约1U。
防护等级:IP20(室内安装)。
2.功能特性
安全逻辑处理:
采用双通道冗余设计,支持故障安全(Fail-Safe)机制,确保单点故障不影响系统安全。
符合SIL4安全完整性等级(根据IEC 61508标准)。
信号采集:
支持脉冲计数、电平检测等功能,适用于轨道电路空闲检测、信号机状态监控等场景。
输入通道隔离电压:≥2500V AC(1分钟)。
通信与诊断:
通过Profibus DP或EtherCAT协议与联锁控制器通信,传输速率最高10Mbps。
内置自检功能,实时监测模块状态(如电源、通道故障),并支持远程报警。
3.性能优势
工业级防护:
耐受宽温环境(-25°C至+70°C)及高湿度(95%RH)。
抗电磁干扰(EMC等级:EN 50121-3-2)。
低功耗设计:
工作电流≤3A(24V DC)。
可扩展性:
支持多模块级联,适配复杂联锁系统需求。
Product Overview
ALSTOM VIIB16-C is an input module for railway signal interlocking system,belonging to the ALSTOM ViViD series,designed for rail transit safety control.Its core function is to collect the status signals of track circuits,signal machines,switches and other equipment,and transmit them to the interlock control system for logical processing.The module is characterized by high safety and high reliability and complies with railway industry standards(such as EN 50126/50128/50129).
Core parameters and technical characteristics
1.Physical characteristics
Module type:Safe input module(VIIB),supports 16 independent safety input channels.
Interface form:
Input type:Dry contact or safety relay contact(such as SPST/SPDT).
Voltage range:24V DC(±10%),compatible with railway signal system standards.
Size and Installation:
Standard 19-inch rack mount,module height approximately 1U.
Protection level:IP20(indoor installation).
2.Functional characteristics
Security logic processing:
It adopts a dual-channel redundant design and supports fail-safe(Fail-Safe)mechanism to ensure that a single point of failure does not affect system safety.
Comply with SIL4 safety integrity level(according to IEC 61508 standard).
Signal acquisition:
Supports pulse counting,level detection and other functions,and is suitable for track circuit idle detection,signal condition monitoring and other scenarios.
Input channel isolation voltage:≥2500V AC(1 minute).
Communication and Diagnosis:
Communication with the interlock controller via Profibus DP or EtherCAT protocols,with transmission rates up to 10Mbps.
Built-in self-test function,real-time monitoring of module status(such as power supply and channel failure),and supports remote alarms.
3.Performance Advantages
Industrial protection:
Tolerate wide temperature environments(-25°C to+70°C)and high humidity(95%RH).
Anti-electromagnetic interference(EMC level:EN 50121-3-2).
Low power design:
Operating current≤3A(24V DC).
Scalability:
Supports multi-module cascade and adapts to the needs of complex interlocking systems.