Description
Woodward SPM-D2-1040B/X8440-2171
Technical Specifications
- Part Number: 8440-2171
- Model: SPM-D2-1040B/X
- Outputs: Discrete raise/lower + Configurable Analog (Voltage, Current, PWM)
- Measurement: Single-phase / 2-wire
Functional Features
- Analog Control: Provides smooth analog bias signals for precise speed and voltage control.
- PWM Output: Pulse Width Modulation output for specific actuator or valve control.
- Password Protection: Multi-level security for operational and configuration parameters.
Application Scenarios
Ideal for applications using electronic speed controls and digital voltage regulators that require analog setpoint inputs rather than discrete raise/lower pulses.
Performance Parameters
- Analog Output Resolution: High-resolution DAC for smooth control transitions.
- Power Supply: 90-250 Vac or 120-375 Vdc.
- Accuracy: Class I True RMS measurement.
Material Composition
Premium industrial components with extended temperature ratings for reliable operation in hot control panels.
Structural Characteristics
- Display: Two-line LCD with backlight for easy viewing.
- Oscilloscope: Front-panel visual aid for manual synchronization verification.
Working Principle
Generates precise analog voltage or current signals proportional to the required speed or voltage correction. This allows the connected governor or AVR to make fine, continuous adjustments rather than stepped discrete changes.
Installation Requirements
Use shielded cables for all analog output connections. Ground the shield at the controller end only to prevent ground loops.
Precautions for Use
Verify the analog output scaling (e.g., 4-20mA or 0-10V) matches the input requirements of the governor/AVR before commissioning.
