ALSTOM

Product Background

N897164624A is rack‑mount pulse‑output DCS module for ALSTOM 800‑series controller platform. Metal‑cased slot‑in unit, mounted inside system sub‑rack, communicates with CPU controller via back‑plane bus. It generates high‑speed pulse control signals for turbine valve servo‑actuator control.

OEM production discontinued (EOL). Available stocks are mainly used/refurbished spare parts for legacy thermal & gas‑fired power‑plant system maintenance replacement. It cannot operate standalone and must work with matched 800‑series controller hardware.

ALSTOM N897164624A Pulse‑Output DCS Module

Model Breakdown

1. ALSTOM: Brand, France
2. N897164624A: Complete hardware ordering part number
3. Pulse output module: Product designation, pulse‑output module
4. DCS Module: Distributed control‑system module

Main Functions

1. High‑precision pulse‑signal generation & output Receive control commands from CPU, generate adjustable high‑speed pulse train with configurable frequency and duty cycle. Output pulse signals drive servo valves and servo‑actuators to realize precise turbine‑valve opening adjustment and position closed‑loop control.More products: www.plcva.com
2. Back‑plane bus data interaction Communicate with main CPU board over system back‑plane bus, receive control set‑points, upload module operating status, pulse‑output status and fault information.
3. Pulse‑channel status supervision Real‑time monitoring for pulse‑output loops, detect short‑circuit and wire‑break faults. On‑board LED indicators show power, running and channel‑fault status for convenient on‑site troubleshooting.
4. Galvanic isolation protection Output channels are electrically isolated; field‑side faults will not damage internal controller circuits. High EMI‑resistance for harsh power‑plant cabinet environment.
5. Power‑on hardware self‑diagnosis Automatic internal‑circuit self‑test upon power‑on, detect channel hardware faults, upload fault status to controller and trigger system alarm.

Note: This module is dedicated for ALSTOM 800‑series platform only, not directly compatible with GEM80, ALSPA CE2000 / P320 platforms. It cannot run independently and must be installed in matched sub‑rack with CPU module.

ALSTOM N897164624A Pulse‑Output DCS Module

Applications

1. Thermal / gas‑fired power‑generation unit control system (primary application) Mounted inside power‑plant control‑cabinet sub‑rack. It outputs pulse signals to drive turbine servo‑valve actuators for precise turbine‑governing‑valve regulation, participates in unit speed and load closed‑loop control. Classified as critical field‑replaceable spare part for power‑plant DCS system.
2. Applied exclusively for spare‑part replacement of legacy power‑plant units; not specified for new‑project design.More products: www.plcva.com
3. Only compatible with ALSTOM 800‑series controller hardware platform, incompatible with third‑party DCS systems.

Understand the lowest price, please contact via email: plcvarious@foxmail.com

More products: www.plcva.com

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