Woodward 9907-077 |CPU Module, Origin: United States
1.9907-077 Product Overview
The Woodward 9907-077 belongs to the 505/505E series digital turbine controllers. It is a microprocessor-based control module designed for single-valve steam turbines,
including single extraction/admission systems or split-range actuator configurations.
The controller features a front panel Operator Control Panel (OCP) with a two-line, 24-character display and multi-function keypad, allowing easy on-site configuration and monitoring.
contacts： Mike
+86 18350224834 （WeChat/WhatsApp）
Email：Mike18350224834@gmail.com
2. 9907-077 Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Power Supply | +24 VDC, approx. 1 A |
| I/O Outputs | Discrete Outputs: 8 Analog Outputs: 6 Actuator Outputs: 2 |
| Display / HMI | Two-line, 24-character LCD, with multi-function keypad |
| Dimensions | Approx. 14 × 11 × 4 in (35.6 × 27.9 × 10.2 cm) |
| Weight | Approx. 9.11 lbs (4.13 kg) |
| Operating Temperature | –4 to +140 °F (–20 to +60 °C) |
| Storage Temperature | –40 to +185 °F (–40 to +85 °C) |
| Humidity Standard | 95% RH at 20-55 °C for 48 hours without damage |
| Protection Class | Typically meets industrial dust and water protection standards |
| Communication Protocol | Supports Modbus, RS-232 / RS-422 serial interfaces |
3. Brand History
Woodward, Inc., founded in 1870 and headquartered in Fort Collins, Colorado, USA, is a global leader in energy control systems. The company has a long history of innovation in turbine control, engine management,
and power generation systems.
Woodward products are widely recognized for their reliability and precision in demanding industrial and power generation applications.
4. Applications in Industrial Automation
The 9907-077 plays a critical role in industrial automation and power generation environments:
- Steam Turbine Control: Manages startup, speed regulation, and extraction/admission control of steam turbines.
- Power Generation Systems: Used in power plants to regulate turbine-driven generators for stable frequency and load management.
- Compressor and Pump Drive Control: Ensures precise speed control for turbine-driven compressors and pumps.
- Process Industry Applications: Applied in chemical plants, refineries, and other industries requiring precise turbine operation.
- Safety and Protection Functions: Includes overspeed protection, critical speed avoidance, actuator travel limits, and event logging for operational safety.
The enhancement of noise resistance is another advantage of PWM over analog control, and this is also the main reason why PWM is
used for communication in some cases. Switching from analog signals to PWM can greatly extend communication distance. At the
receiving end, modulated high-frequency square waves can be filtered out and the signal can be restored to analog form through appropriate
RC or LC networks. PWM is widely used in various systems.
In short, PWM is not only economical, space saving, and has strong noise resistance, but also an effective technology worth using by
engineers in many design applications.
The commonly used linear series stabilized power supply chips are: 78XX series (positive voltage type), 79XX series (negative voltage type)
(in actual products, XX is represented by a number, and the output voltage is what XX is. For example, 7805 with an output voltage of 5V; LM317
(adjustable positive voltage type), LM337 (adjustable negative voltage type); 1117 (low voltage difference type, there are multiple models,
and the voltage value is represented by the last digit. For example, 1117-3.3 is 3.3V, and 1117-ADJ is adjustable).
Click to learn more about Woodward”s products
ASML NXT WS DOUBLE NETZER Y RIGHT Surplus 4022.637.38097 SEM-I-500=6B46
ASML 4022.638.19432 4022.638.19562 Wafer Loader
ASML 4022.430.05300 P. Chuck Drive PCB Card 4022.430.0530 PAS 50002500
ASML RS XTIV X-AIRBEARING for parts 4022.666.42241 SEM-I-980=9G22
Philips PG 2024 CPU PCB Card ASML PAS 50002500 Wafer Stepper System
4022.476.01371 PSU 270V 1.9A 3HE 12TE
ASML 4022.430.0090.
ASML 4022.455.9428 Control Module With Phase Modulator for ASML Red Laser
ASML Load Port 4022.667.58681
13814 ASML SVG LEVEL SLAVE 4022.436.1848
Asml 4022.480.6766 Optique Article Svg GLP 7123 3-0078
1PCS ASML 4022 268 00750 PCB 90days warranty via DHL or FedEx
NEW ASML 4022.640.59951
Philips 7122 714 14001 Processor PCB Card MCDM 60 1,6 ASML PAS 50002500
ASML LENS Z MANIP SENSOR 2 PREAMP
ASML 4022.428.10970 Voltage Current PCB Card 4022.428.1097 PAS 50002500
1PCS ASML 4022.456.04391 RT-X6 124427876 90days warranty via DHL or FedEx
1PCS ASML 4022 192 91202 90days warranty via DHL or FedEx
ASML 4022.955.1663 LASERHEAD INSIDE RED,
1PCS ASML 4022.456.04391 RT-X6 124427876 (3-month warrantySHIP FedEx)
Asml 4022.481.15351 Limms Assemblaggio Ls-X Atwt
ASML 4022.428.1449 Reticle Handling Control PCB Card PAS 50002500 Working
There are no reviews yet.