SPECIFICATIONS
Part No.: IS200WSVOH1ACD
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Size: 8.26 cm x 4.19 cm x 12.1 cm
Technology: Surface-mount
Temperature Operating: -30 to 65oC
Product Type: Servo Driver Module
Availability: In Stock
Series: Mark VIe
Functional Description
IS200WSVOH1ACD is a servo driver module developed by GE. It is a part of the Mark VIe control system. The servo driver assembly plays a critical role in controlling the servo mechanisms within the system. The servo driver assembly incorporates a dedicated power supply unit responsible for converting the P28 voltage input into positive and negative 15 V outputs. These voltage outputs are essential for powering the servo current regulator circuits, ensuring stable and regulated power delivery for optimal servo performance.
Module Features
- Servo Current Regulators: Within the assembly, two servo current regulators operate based on the current references provided by the servo pack. These regulators play a crucial role in maintaining precise control over the servo mechanisms, ensuring accurate and responsive operation in various operating conditions.
- Configurable Gains: The servo driver circuit offers a selection of five configurable gains, providing flexibility in fine-tuning the control parameters based on specific system requirements. This adjustable gain feature allows for optimization of servo performance across different operational scenarios, enhancing overall system efficiency and responsiveness.
- Servo Suicide Relays and Excitation Output Drivers: In addition to current regulation, the assembly houses servo suicide relays and excitation output driver circuits. These components are integral to the safety and functionality of the servo system, providing mechanisms for emergency shutdowns and facilitating the generation of excitation signals for precise servo control.
- Power Supply Voltage: The power supply voltage is nominally set at 28 V DC, providing stable and reliable power to the system components.
LVDT Accuracy: The accuracy of the Linear Variable Differential Transformer (LVDT) is maintained at 1%, with a resolution of 14 bits. This ensures precise and consistent position sensing.
- LVDT Input Filter: A low pass filter is employed for LVDT input signals, featuring three down breaks at 50 rad/sec ±15%. This filter effectively removes high-frequency noise, ensuring clean and accurate signal processing.
- LVDT Common Mode Rejection (CMR): The LVDT system offers excellent common mode rejection, with a CMR of 1 V and 60 dB at 50/60 Hz. This capability minimizes interference from common-mode signals, enhancing signal integrity.
- LVDT Excitation Output: The LVDT excitation output operates at a frequency of 3.2 ±0.2 kHz, delivering a voltage of 7.00 ±0.14 V RMS. This ensures consistent and stable excitation for LVDT sensors, crucial for accurate position measurement.
- Pulse Rate Accuracy: Pulse rate accuracy is maintained at 0.05% of reading with 16-bit resolution at a 50 Hz frame rate. This high level of accuracy ensures precise measurement and control of pulse rates within the system.
- Acceleration Measurement Noise: The system boasts minimal acceleration measurement noise, with a tolerance of less than ± 50 Hz/sec for a 10,000 Hz signal being read at 10 ms. This ensures accurate and reliable acceleration sensing in dynamic environments.
- Pulse Rate Input: The minimum signal required for proper pulse rate measurement is 33 mVpk at 2 Hz and 827 mVpk at 12 kHz. This ensures reliable detection and measurement of pulse rates across a wide range of frequencies.
- Magnetic PR Pickup Signal: The magnetic Pulse Rate (PR) pickup signal generates 150 V peak-to-peak into 60 k ohm, providing a robust and reliable signal for pulse rate sensing applications.
- Active PR Pickup Signal: The active PR pickup signal generates a voltage range of 5 to 27 V peak-to-peak into 60 k ohm;. This signal range accommodates various pulse rate sensing requirements with flexibility and precision.
- Servo Valve Output Accuracy: The accuracy of the servo valve output is maintained at 2 percent, with a resolution of 12 bits. This ensures precise control of servo valve operations, contributing to stable and accurate system performance.
- Dither Amplitude and Frequency: The dither amplitude and frequency are adjustable, allowing for precise control and optimization of system dynamics and performance.
Key Hardware Elements
- Metal Backplane: The PCB includes a robust metal backplane, indicating its likely classification as a standard-mounted board that does not require a DIN-rail for installation.
- Voltage-Regulating Components: The board features standard voltage-regulating components such as resistors, transistors, diodes, and integrated circuits.
- Conformal Coating: Protected by a conformal coating, which safeguards its components and enhances durability.
Fault Detection
- Servo Current Out of Limits or Not Responding: The system monitors servo current levels, triggering a fault if they exceed predefined limits or fail to respond appropriately. This safeguard ensures that the servo mechanisms operate within safe and optimal ranges.
- Regulator Feedback Signal Out of Limits: Fault detection occurs if the feedback signals from the regulators deviate beyond acceptable limits. This feature helps identify issues with the control loop, ensuring accurate regulation of servo mechanisms.
- Servo Suicide: Detection of a servo suicide event triggers a fault, indicating a critical failure in the servo system. This prompt detection enables swift intervention to prevent further damage or malfunction.
- Calibration Voltage Range Fault: Fault detection occurs if the calibration voltage falls outside the specified range. This ensures the accuracy and reliability of calibration procedures, vital for precise servo control.
- LVDT Excitation Out of Range: The system monitors the LVDT (Linear Variable Differential Transformer) excitation voltage, triggering a fault if it falls outside the acceptable range. This ensures optimal performance of LVDT sensors, critical for accurate position sensing.
- Input Signal Variance Beyond TMR Differential Limit: Detection occurs if the input signal varies significantly from the voted value by more than the TMR (Triple Modular Redundancy) differential limit. This ensures consistency and reliability in input signal processing.
- Failed ID Chip: Fault detection is triggered if the ID chip, which contains essential board information, fails or mismatches. This ensures proper board identification and compatibility, crucial for system operation.
The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS200WSVOH1ACD?
It is a servo driver module developed by GE under the Mark VIe series.
What does the power supply in the servo driver assembly do?
The power supply converts the P28 voltage input to positive 15 V and negative 15 V outputs, essential for the servo current regulator circuits.
How many servo current regulators are there, and what are their references?
There are two servo current regulators working off the current references from the servo pack.
Are there configurable options in the servo driver circuit?
Yes, the servo driver circuit offers five configurable gains, allowing for fine-tuning of control parameters to meet specific system requirements.
What components are included in the servo driver assembly?
The assembly includes servo suicide relays and excitation output driver circuits, crucial for safety and precise servo control.
