Description
Woodward 9907-1681 Basic Introduction & Technical Specifications
Core Specifications
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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
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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
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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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