9907-1681 woodward Control Unit in stock

The 9907-1681 is a high-performance digital governor belonging to Woodward’s 505E Series, engineered for precise speed, load, and process control of gas turbines, steam turbines, and industrial prime movers.

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E-mail:geabbdcs@gmail.com
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Contacts:KEN HE

Description

Woodward 9907-1681 Basic Introduction & Technical Specifications
Core Specifications

  1. Power Input

Supply Voltage: 18–36 Vdc (LVDC), isolated

Power Consumption: Maximum 60 W (typical 45 W under normal operation)

Input Protection: Reverse polarity protection, overvoltage clamping

  1. Operating & Storage Conditions

Operating Temperature: –30 °C to +70 °C (with display module)

Storage Temperature: –40 °C to +85 °C (recommended 0 °C to 40 °C for long-term storage)

Humidity: 5%–95%, non-condensing (per IEC 60068-2-3)

Vibration Resistance: 7.5 Grms, 10–2000 Hz (industrial skid mount, per Woodward RV1 standard)

Shock Resistance: 15 G, 11 ms duration, 3 axes (per IEC 60068-2-27)

Ingress Protection: IP20 (when installed with proper panel cutout)

Pollution Degree: 2; Overvoltage Category: 3

  1. I/O Configurations

Speed Sensor Inputs: 2 channels (MPU/proximity sensor compatible), with integrated Prox Power (12 Vdc)

Analog Inputs: 8 channels (4–20 mA, differential), with Loop Power (24 Vdc, 20 mA max per channel)

Analog Outputs: 6 channels (4–20 mA, sinking/sourcing configurable), 0.1% full-scale accuracy

Actuator Outputs: 2 channels (configurable 4–20 mA / 20–200 mA), for servo valve or actuator control

Discrete Inputs: 16 channels (dry contact/NPN, with Contact Power 24 Vdc)

Relay Outputs: 8 channels (Form-C, 5 A @ 250 Vac / 30 Vdc), for alarm and interlock functions

Update Rate: Configurable 10 ms–200 ms (GAP logic cycle)

Control Functions

Advanced PID Control: OptiTune adaptive algorithm for dynamic load/speed regulation

Operating Modes: Local/Remote control, Manual/Auto mode, Speed/Load control (switchable via HMI or communication)

Critical Speed Avoidance: 3 programmable skip bands to prevent resonance damage

Startup & Shutdown Control: Configurable ramp rates, warm-up timers, and sequence logic

Protection Features: Overspeed trip (2 independent setpoints), under/overload alarm, loss-of-signal detection

Process Integration: Supports cascade control (e.g., pressure/temperature as master loop, speed as slave loop)

Fault Diagnostics: Built-in self-test (BIST), real-time fault logging, and alarm prioritization

Communication Capabilities

Ethernet Ports: 2 x 10/100 Base-T ports (isolated), supports Modbus TCP/IP, Ethernet/IP, and Woodward NetCon

CAN Ports: 2 x CANopen/CAN 2.0B ports (1 Mbit/s max), isolated, for distributed I/O (RTCnet/LINKnet HT compatible)

Serial Ports: 1 x RS-232/RS-485 port (isolated), supports Modbus RTU (ASCII configurable)

Service Port: 1 x RS-232 (isolated), for configuration and firmware updates via Woodward Toolkit software

Safety Certifications

Compliance Standards: EN 61010-1 (IEC 61010-1), UL 61010-1, CSA C22.2 No. 61010-1

Hazardous Area Approval: Class I, Division 2, Groups A/B/C/D (UL 1203); Zone 2, Group II (ATEX/IECEx)

EMC Compliance: EN 61000-6-2 (immunity), EN 61000-6-4 (emissions) – Heavy Industrial category

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Shipping:
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2. We will ship the product to you on the same day or within 1-2 working days after receiving your payment. The shipping time depends on the country/region where you reside, the customs and habits of your country/region, and especially during peak hours.
3. Assuming (assuming) that the item requires payment of tariffs from your country, the buyer is obligated. We are not responsible for any taxes or customs fees in your country/region.

Return Policy:
1. Please contact us before returning the item.
2. The buyer should inform the seller of all returned items within 7 days after receiving the package. We reserve the right to reject any request to inform the seller for more than 7 days.
3. Returned products must have all original packaging and be in good condition.

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