Woodward AtlasPC Control Platform (8701-758 + 5601-1126 Matching Set)

Series Official Definition

• 8701-758: AtlasPC core main control CPU module (main governing unit, all control algorithm, I/O processing, communication logic integrated)

• 5601-1126: Dedicated AtlasPC matching operator HMI panel (front keypad + LCD display, local parameter tuning, real-time monitoring, fault inquiry)

• Official supporting documents: AtlasPC Hardware Installation Manual, AtlasPC Configuration & Operation Manual, listed in Woodward Industrial Turbine Catalog Manual 25182.

Model Separate Core Introduction

1. Woodward 8701-758 AtlasPC Main Control Module

Product Positioning

Core Hardware & Functional Parameters

1. Power Supply: Standard 24VDC wide input range, compatible with UPS backup power cabinet

2. Complete I/O Resource

• Dual MPU/proximity speed sensor input channels

• Multi-channel configurable 4–20mA analog inputs (inlet pressure, exhaust backpressure, unit load, auxiliary process signals)

• Multiple analog outputs for valve actuator drive and DCS meter signal transmission

• Mass discrete contact inputs (trip, permissive, remote raise/lower, breaker status)

• Form-C relay alarm & shutdown outputs

1. Multi-Loop Independent PID Control

• Primary speed/load PID governor

• Cascade pressure PID (inlet/exhaust pressure regulation)

• Auxiliary PID for load & pressure limiting

• Built-in valve limiter, idle/rated ramp, hot & cold auto startup logic

1. Turbine Safety Logic

• Dual speed detection, zero-speed stall protection

• Two-stage critical speed avoidance band

• Overspeed test function, first-out trip fault recording with timestamp

• Emergency shutdown interlock logic

1. Communication Interfaces

• RS485 Modbus RTU for DCS/SCADA remote monitoring

• Dedicated communication port matched with 5601-1126 HMI panel for local operation data exchange

1. Environment & Certification

• Operating temperature: -40℃ ~ +70℃

• Conformal coated PCB optional for chemical plant & offshore corrosive environments

• CE EMC, Class I Division 2 hazardous location certified

Main Application

2. Woodward 5601-1126 Atlas Dedicated Operator HMI Panel

Product Positioning

Core HMI Functions

1. Two-line multi-character LCD backlight display, plain English real-time parameter display (speed, load, valve position, setpoint, alarm status)

2. Full-function integrated keypad: Run/Stop/Reset, speed adjust, cascade/aux switching, dynamic PID tuning key, fault query shortcut

3. Two operating access modes: Run mode (online monitoring & fine tuning) / Program mode (offline turbine parameter configuration, password protected)

4. Real-time fault alarm screen, historical trip record lookup, overspeed test local trigger

5. Bidirectional serial communication with 8701-758 main unit, real-time data synchronization without signal delay

6. Compact panel cutout size, IP54 front protection, anti-glare industrial display screen

Matching Rules

Universal Platform Core Advantages (8701-758 + 5601-1126 Full Set)

1. All-In-One Compact Cabinet Solution

2. Unlike large rack-type MicroNet systems, AtlasPC adopts independent main module + front HMI split layout, occupies small cabinet space, suitable for small turbine skid-mounted control cabinets with limited installation area.

3. Complete Turbine Standard Control Algorithms

4. Retains all core steam turbine control functions of high-end 505XT governors, including auto hot/cold startup, critical speed avoidance, cascade pressure closed-loop, load droop control, fully field-programmable via HMI without external programming computer.

5. Simple Wiring & Easy Commissioning

6. Integrated I/O terminals on 8701-758 main unit, no additional FTM field terminal modules required; HMI direct plug-and-play communication wiring reduces site construction workload.

7. Stable Industrial Anti-Interference Design

8. Multi-stage EMI filtering circuit built into main controller, shielded communication cable matching requirement, stable operation in high-vibration boiler room and refinery control rooms.

9. Flexible Dual Operation Modes

• Local operation: Complete parameter viewing & adjustment via 5601-1126 front panel

• Remote operation: Modbus RTU connected to plant DCS for remote setpoint control, fault upload, real-time data monitoring

1. Low Maintenance Cost

2. Hot-replaceable HMI panel; main module supports online fault diagnosis via front screen, rapid positioning of speed sensor, actuator and wiring faults.

Standard System Matching Combination

1. Core Control Unit: Woodward 8701-758 Main CPU Governor Module

2. Local Operator Interface: Woodward 5601-1126 HMI Display Keypad Panel

3. Supporting Accessories: MPU speed sensors, electro-hydraulic actuators, shielded communication cables, cabinet mounting brackets

4. Optional Spare Parts: Replacement LCD screen, terminal blocks, conformal coated upgraded main module

Typical Application Scenarios

1. Waste heat recovery steam turbine generator units (small thermal power, steel plant surplus steam power generation)

2. Single-valve industrial process steam turbines (sugar, paper, chemical factory drive equipment)

3. Small split-range steam turbine skid-mounted control systems

4. Offshore platform auxiliary small steam prime mover control

5. Cogeneration CHP small steam turbine power equipment

Official Supporting Documentation

1. Woodward Industrial Turbine Catalog Manual 25182 (AtlasPC platform catalog chapter)

2. AtlasPC 8701-758 Hardware Installation Manual

3. 8701-758 & 5601-1126 Matching Commissioning Guide

4. AtlasPC Program & Operation Manual (HMI parameter setting tutorial)

Global Aftermarket Support

Woodward global service network provides factory repair, remanufactured spare 8701-758 main modules and 5601-1126 HMI panels, Last Time Buy inventory reservation, on-site commissioning and parameter programming technical service for all AtlasPC turbine control systems.