Product Details
Configured for high-bandwidth position control in all-electric actuation systems, the Woodward 8200-177 (8200-177 EM and LQ Digital Driver) provides direct electrical execution of proportional valve positioning for prime mover applications.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8200-177 |
| Brand | Woodward |
| Origin | USA |
| Weight | 24.0 lbs |
| Dimensions | 461 mm x 265 mm x 59 mm |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | 18 to 32 VDC |
| Output Rating | 24 VDC, 16 A |
| Speed Sensing | 1 to 30 VAC |
V/Hz and Field-Oriented Vector Control
The 8200-177 driver employs model-based control algorithms to manage actuator load inertias and variable friction profiles inherent in steam and gas valve systems. The unit features harmonic distortion suppression to maintain position signal accuracy across long cable runs, with a maximum stub length constraint of 300 mm at elevated temperatures (+40 deg C to +85 deg C). The driver's actuator loop feedback response is optimized through high-speed position demand processing, ensuring proportional control integrity. Users must ensure that the thermal heat sink dissipation profiles are respected by maintaining adequate air circulation around the 461 mm height profile to prevent internal component degradation during high-current output events.
Frequently Asked Questions
Q: Can the RS-485 interface be used for real-time valve control?
A: Yes. The RS-485 interface supports control, setup, and configuration functions when integrated with a NetCon or MicroNet control system utilizing a Real Time Serial I/O module.
Q: What are the primary isolation specifications for the network interface?
A: The network isolation is rated at 1000 Vrms at 60 Hz to protect the internal logic from common-mode transients and ground potential differences found in industrial environments.
Field Installation Guidelines
- Mounting: Secure the driver vertically to ensure optimal convective cooling along the thermal heat sink path. Ensure the 461 mm x 265 mm x 59 mm envelope is clear of heat-generating industrial equipment.
- Wiring: Terminate all 4-20 mA demand and feedback signals using shielded, twisted-pair cabling. Ground the shield at the control system end only to minimize noise injection.
- Stub Length: Adhere strictly to the 300 mm maximum stub length for all wiring branches when operating in the +40 deg C to +85 deg C range to prevent signal reflections.
- Interface Configuration: Use the Driver Interface Program (DIP) via RS-232 for initial commissioning and tuning. Ensure the Servlink protocol communication parameters are matched between the PC and the driver prior to enabling the position demand signal.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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