Woodward 8236-144D from SAUL ELECTRIC | In Stock
1.8236-144D Product Overview
The Woodward 8236-144D 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.
2. 8236-144D 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 8236-144D 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.
4. Feedback compensation type semi closed loop control
This servo drive control compensation principle is the same as the open-loop compensation system, consisting of two independent
measurement systems consisting of a rotary transformer and an
induction synchronizer, both of which work in amplitude discrimination mode. The disadvantage of this system is high cost, requiring
two sets of detection systems. The advantage is that it is easier to adjust than a fully closed-loop system, has good stability, and is suitable
for use as a feed drive for high-precision large CNC machine tools.
Servo drive maintenance
1. When checking the current monitoring output terminal of the driver with an oscilloscope, it was found that it was all noise and could not be read out.
Fault cause: The current monitoring output terminal is not isolated from the AC power supply (transformer).
Solution: You can use a DC voltmeter to detect and observe.
2. The motor runs faster in one direction than in another.
Reason for malfunction: The phase of the brushless motor is incorrect.
Solution: Check or identify the correct phase.
Reason for malfunction: When not in use for testing, the test/deviation switch is turned to the testing position.
Solution: Turn the test/deviation switch to the deviation position.
Reason for malfunction: The position of the deviation potentiometer is incorrect.
Solution: Reset.
3. Motor stall.
Reason for malfunction: The polarity of the speed feedback is incorrect.
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