Description
Woodward 3522-1004
Technical Specifications: Working power supply: 24 VDC Signal type adaptation: Analog 4–20 mA, switching signal Isolation withstand voltage: 2500 VAC high-strength isolation Operating temperature: -40 ℃ to +70 ℃ Response speed: Microsecond-level fast signal response Protection grade: IP20
Functional Features: Complete electrical isolation between field side and system side Industrial high-frequency clutter filtering and signal purification Transient surge and overvoltage absorption protection Signal level stable conversion and matching Ground loop interference elimination Loop open circuit and short circuit preliminary detection
Application Scenarios: Power plant governor signal isolation cabinet Field instrument signal access terminal box Industrial automatic control signal conditioning system DCS and field sensor signal transition equipment
Performance Parameters: Zero signal transmission attenuation No signal distortion under long-distance wiring Strong industrial electromagnetic interference resistance Long-term stable working performance
Material Composition: High-insulation epoxy substrate High-precision isolation optocoupler components Surge absorption and filtering components Flame-retardant engineering plastic shell Copper alloy high-precision wiring terminals
Structural Features: Compact DIN rail installation structure Front terminal wiring area clear and standardized Internal full isolation circuit layout Miniature integrated modular design Anti-aging and anti-corrosion shell structure
Working Principle: Field original signals enter the module isolation circuit, filter out industrial interference clutter through internal filtering components, and complete electrical isolation between field equipment and control system. The purified standard signals are transmitted to the rear-end control I/O module. The internal protection components absorb instantaneous overvoltage surge to avoid damage to precision control equipment.
Installation Requirements: Fixed installation on standard DIN rail inside cabinet Signal wiring strictly follows positive and negative polarity Shielded cables are used for field signal transmission Single-point grounding of all shielding layers Separate weak current signal and strong current wiring
Precautions for Use: Prohibit overvoltage signal access Regularly check terminal wiring firmness Keep the module dry and dust-free Avoid corrosive gas environment placement
