Description
The WOODWARD 9907-1200 is a high-performance current-to-pressure converter (CPC-II) from the WOODWARD CPC-II family. It is primarily used to convert 4-20mA current signals into proportional pressure outputs and is widely applied in steam turbine, gas turbine, and other equipment inlet valve or servo system controls. As part of Woodward’s 505/505E series, it integrates advanced microprocessor technology and a user-friendly interface to optimize energy efficiency and system reliability. Below is a detailed product description:
Product Overview
The WOODWARD 9907-1200 is a high-performance digital governor controller designed for steam, gas, and hydro turbines, offering precise speed regulation, load control, and protection functions. It converts electrical current signals into proportional hydraulic pressure outputs, which then actuate valves. The device features enhanced dynamics, offering improved response time and accuracy for precise valve positioning. With a compact design, it is easy to install and integrate into existing systems. Its robust construction allows it to withstand harsh industrial environments and minimize downtime caused by oil contamination. The WOODWARD 9907-1200 supports single or dual split-stage actuators, making it suitable for power generation, oil and gas, and industrial automation applications.
Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 9907-1200 |
| Manufacturer | WOODWARD |
| Product Type | Current-to-Pressure Converter (CPC-II) |
| Input Voltage | 18–36 VDC (low voltage) or 88–150 VDC (high voltage) |
| Input Signal Range | 4-20 mA |
| Output Pressure Range | 0-10 bar (0-145 psi) |
| Operating Temperature Range | -40°C to +70°C |
| Response Time | ≤2ms |
| Accuracy | ±0.1% |
| Maximum Output Current | 10A |
| Weight | Approximately 2.5kg |
| Communication Protocols | RS-232/RS-422 (Modbus RTU), Ethernet (Modbus TCP) |
| Control Modes | Speed, load, and synchronization |
| Pressure Range Options | 10 bar, 25 bar |
| Zones | Zone 1, simplex |
| Applications | Positioning single-acting steam turbine valve servos |
9907-1200
Main Features and Advantages
Precision Control: The WOODWARD 9907-1200 achieves ±0.1% speed accuracy and responds to dynamic load changes within <100ms. Its adaptive PID tuning reduces overshoot by 30% compared to legacy systems.
Fault Detection: Equipped with self-diagnostics and first-out shutdown indicators to minimize downtime. Built-in surge protection and EMI shielding enhance reliability.
Flexibility: Configurable for single/multi-unit operations via front-panel LCD or Woodward’s OP View™ software. Supports critical speed avoidance for up to 3 resonant frequencies.
Reliability: Compliant with ISO/SH 20/16 standards, it operates reliably in harsh environments. The average time to failure (MTBF) reaches up to 100,000 hours.
Compact Design: Its compact size allows for easy installation and integration into existing systems.
Enhanced Dynamics: Offers improved response time and accuracy for precise valve positioning.
Pollution Resistance: Meets ISO20/16 standard oil pollution resistance, addressing the industry’s top reliability issue of equipment uptime and performance affected by oil contamination.
Redundant Input/Sensor: Suitable for critical applications and accepts signals from redundant controllers.
Status and Health Indicators: Provides indications of pressure sensor health, input demand signal health, internal device health, and input power quality.
9907-1200
Application Areas
Power Generation: Used in thermal power plants to optimize steam turbine performance. In power plants, it ensures generator frequency stability and controls turbine speed and load.
Oil and Gas Industry: Applied in refineries to control compressor trains. For example, it monitors and controls mechanical and electronic systems.
Industrial Automation: Regulates rotating equipment in manufacturing. Widely used in machine tools, robotics, textile machinery, and more.
Aeroengine: Used for precise control of engine operating parameters.
Marine Control: Ensures precise control of power systems on ships.
Related Products
-
WOODWARD 9907-014: A CPC-II current-to-pressure converter with similar functions to the WOODWARD 9907-1200, but differing in pressure range and other specifications.
-
WOODWARD 9907-018: Another CPC-II current-to-pressure converter. Compared to the WOODWARD 9907-1200, it may have variations in input voltage and other parameters.
-
WOODWARD 9907-019: A CPC-II current-to-pressure converter with features comparable to the WOODWARD 9907-1200, but tailored for specific application scenarios.
-
WOODWARD 9907-1100: A CPC-II current-to-pressure converter. While sharing the same core technology as the WOODWARD 9907-1200, it may differ in performance parameters and application fields.
-
WOODWARD 9907-055: A CPC-II current-to-pressure converter. It has some similarities to the WOODWARD 9907-1200, but may vary in design and functionality.
-
WOODWARD 9907-072: A CPC-II current-to-pressure converter. Compared to the WOODWARD 9907-1200, it may have differences in pressure output range and other technical specifications.
-
WOODWARD 9907-076: A CPC-II current-to-pressure converter. It shares the same application domain as the WOODWARD 9907-1200, but may differ in specific technical parameters and performance.
-
WOODWARD 9907-077: A CPC-II current-to-pressure converter. While similar to the WOODWARD 9907-1200, it may have variations in input signal range and other aspects.
-
WOODWARD 9907-105: A CPC-II current-to-pressure converter. It has some functional overlap with the WOODWARD 9907-1200, but may differ in design and application.
9907-1200
Installation and Maintenance
Installation Preparation for the WOODWARD 9907-1200:
Before installing the WOODWARD 9907-1200, ensure the installation site meets the specified environmental conditions, including temperature, humidity, and electromagnetic compatibility. Prepare the necessary tools and thoroughly review the installation manual to familiarize yourself with the procedure and safety guidelines.
Maintenance Suggestions for the WOODWARD 9907-1200:
Regular maintenance is crucial to ensure the longevity and optimal performance of the WOODWARD 9907-1200. This includes routine cleaning of the module to prevent dust accumulation, inspecting connections for tightness, and monitoring operational parameters. In case of any anomalies, promptly contact WOODWARD technical support.
9907-1200
Product Warranty
Our company provides a one-year quality warranty for the WOODWARD 9907-1200, covering hardware failures not caused by external factors such as improper use or physical damage. During the warranty period, we are committed to replacing faulty units to minimize operational disruption. For discontinued models or urgent spare part requirements, our global supply chain ensures timely procurement and delivery, supporting the uninterrupted operation of your industrial systems.
ABB 1MRK002133-ABr02 DC/DC
ABB 3BHB004661R0101 KUC711AE101 Analog output module
ABB 3BHE003604R0102 UFC765AE102 DO module
ABB 3BHE004573R0145 UFC760BE145 Control processor
ABB 1MRK002133-ABr02 DC/DC
ABB 3BHB004661R0101 KUC711AE101 Analog output module
ABB 3BHE003604R0102 UFC765AE102 DO module
ABB 3BHE004573R0145 UFC760BE145 Control processor
Reviews
There are no reviews yet.