RELIANCE S-D4012是瑞恩Reliance S-D系列机架式转速控制计时模块，搭配磁电探头MPU采集原动机脉冲转速信号。

RELIANCE S-D4012 is a rack-mounted speed control timer module of Reliance S-D series, acquiring prime mover pulse speed signals with MPU magnetic pickup.

内置频压转换、转速给定比较与调速输出回路，可联动执行机构调节燃料/蒸汽阀，该型号已停产，多用于机组调速系统备件替换。

It integrates frequency-to-voltage conversion, speed reference comparison and regulation output to drive fuel or steam actuators. It is discontinued for legacy prime mover control spare replacement.

Main Specifications 技术参数

• 1. Product Series / 产品系列：RELIANCE S-D Series

• 2. Part Numbers / 型号编码：S-D4012

• 3. Function Type / 类型：Speed Control / Timer Module 转速控制计时模块

• 4. Key Features / 特性：MPU speed input, frequency-voltage conversion, speed regulation output

• 5. Compatibility / 配套：S-D机架、S-D4006 / S-D4007 / S-D4008模块、磁电转速探头

Core Functions 核心功能

• 1. MPU磁电探头脉冲采集，将频率信号转为转速测量值。
  MPU pulse signal acquisition, converting frequency signal into measured speed value.

• 2. 转速给定对比，输出偏差调节信号控制执行机构。
  Speed reference comparison, output deviation signal to control actuators.

• 3. 怠速、额定转速模式切换，适配机组不同工况。
  Idle and rated speed mode switch for different operating conditions.

• 4. 背板总线通讯，同机架主控、I/O卡件交互转速数据。
  Backplane communication for speed data exchange with controller and I/O boards.

• 5. 转速异常监测，可输出超速、低速告警信号。
  Speed fault monitoring, support overspeed and low-speed alarm output.

Application Scenarios 应用场景

• 1. 燃气轮机、柴油机原动机调速控制系统。
  Speed control system for gas turbine and diesel prime movers.

• 2. 电厂辅机、发电机组转速监测与调节回路。
  Speed monitoring and regulation loops for power plant auxiliary and generator sets.

• 3. 冶金、造纸生产线大型驱动机组转速控制。
  Large drive unit speed control for metallurgy and paper production lines.

• 4. 存量瑞恩S-D调速系统故障板卡更换备件。
  Replacement spare for faulty speed control cards in existing Reliance S-D systems.

• 5. 海外工业EPC项目老旧机组控制系统备件供货。
  Spare supply for legacy prime mover control systems in overseas EPC projects.

FAQ 常见问答

Similar Models 相似型号

S-D4006

S-D4007

S-D4008

S-D4011

S-D4030