What to do if my Woodward VariStroke-I shows 'Shut down (Remote Servo Only)'?
If the Woodward Controller shows a 'Shut down (Remote Servo Only)' error related to Position Sensor Loop Power overload, check the sensor's current draw and ensure the position sensor wiring and power supply are connected correctly.
What does 'Position 1 / 2 Feedback Low Detection' mean on a Woodward VariStroke-I?
If the Woodward Controller displays a 'Position 1 / 2 Feedback Low Detection' error, it means the power cylinder feedback 1 is less than 4 mA. This is often due to a feedback sensor wiring fault or a failed sensor channel. Check all connections to the final cylinder and inspect for any impediment to motion. If the problem persists, service will be required.
Why is my Woodward VariStroke-I Controller showing 'Both Position Feedbacks Failed Detection'?
If the Woodward Controller shows a 'Both Position Feedbacks Failed Detection' error, it indicates that both power cylinder feedback signals are out of the usable range. This could be due to a feedback sensor wiring fault, failed sensor channel(s), or the sensor temperature being too high. Check all connections to the final cylinder for any impediments to motion. Also, ensure that the environment and mounting location meet the environmental specifications. If the problem continues, service will be required.
What does 'Temperature Derating Active' mean on my Woodward VariStroke-I?
If the Woodward Controller indicates that 'Temperature Derating' is active, it means current limits have been reduced due to high temperature. These limits will automatically reset once the temperature is within the specified limits. To resolve this, reduce the ambient temperature to within the specified limits.
What causes a 'Temperature Sensor High Detection' error on a Woodward VariStroke-I Controller?
If the Woodward Controller displays a 'Temperature Sensor High Detection' error, it indicates that the control board temperature sensor is reading a temperature above operational limits. This could be due to the ambient temperature of the electronics module being too high. If the ambient temperature is within specification and the problem persists, contact Woodward Technical Support, as the temperature sensor may be defective.
What to do if my Woodward VariStroke-I Controller shows 'Electric Servo Temp High Detection'?
If the Woodward Controller displays an 'Electric Servo Temp High Detection' error, it means that the servo electric motor temperature sensor indicates a temperature above operational limits. This can be caused by the ambient temperature of the electronics module being higher than allowed. Reduce the ambient temperature to within specification limits. If the problem persists, the temperature sensor may be defective; contact Woodward Technical Support for further assistance.
General| Brand | Woodward |
|---|---|
| Model | VariStroke-I |
| Category | Controller |
| Language | English |
Detailed description of the VariStroke-I electro-hydraulic actuator and its capabilities.
Overview of the major components and configurations of the VS-I actuator.
Key advantages including dirt tolerance, linearization, and side load capability.
Details on bore/rod diameters, stall force, slew rates, accuracy, and failsafe operation.
Operating limits for ambient temperature, vibration, shock, and corrosion resistance.
Input/output signals, voltage, current, connections, and feedback device details.
Procedures for handling and unpacking the VS-I actuator upon delivery.
Guidance on mounting, orientation, heat shields, and general setup considerations.
Details on supply, drain, and control port connections and tightening torques.
Requirements for PC service tool software, hardware, and port connections.
Step-by-step guide to establish communication between the service tool and the actuator.
Overview of the service tool's system status and information pages.
Interface for setting operating parameters and initiating calibration procedures.
Process to set the actuator's minimum position and scale it to the demand range.
Settings for analog demand and feedback signals, including scaling and fault detection.
Configuration options for discrete and analog outputs, including alarm and shutdown indications.
Adjustments for bandwidth, dither, and silt buster functions for fine-tuning performance.
General guide for diagnosing and resolving system problems with the VS-I actuator.
Specific troubleshooting steps for faults related to demand input signals.
Guidance for diagnosing issues related to actuator performance and stability.
Resources and contacts for installation assistance and unsatisfactory performance.
Instructions for packing and returning the VS-I unit for service.
Detailed outline drawings and installation features for the V25TD-10XX model.
Detailed outline drawings and installation features for the V45TD-15XX model.
Outline drawings and installation details for the V25RD-10XX remote servo-cylinder.
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