Description
ABB AI02
Technical Specifications:
- Channels: 8 isolated analog input channels.
- Signal Types: Voltage (0-10V) or Current (4-20mA, 0-20mA).
- Resolution: 12-bit or higher.
- Isolation: Channel-to-channel and channel-to-bus galvanic isolation.
Functional Features:
- Configurable Inputs: Software-selectable voltage or current per channel.
- Diagnostics: Wire break detection and over-range/under-range alarming.
- High Accuracy: Low temperature drift and high common-mode rejection.
Application Scenarios:
- Temperature, pressure, and flow measurement.
- Level monitoring in tanks and silos.
- Process variable feedback for closed-loop control.
Performance Parameters:
- Conversion Time: Fast scan rate for real-time control.
- Input Impedance: > 1 MΩ for voltage inputs.
Material Composition & Structural Characteristics:
- Terminals: Spring-clamp or screw terminals for fast wiring.
- LED Indicators: Per-channel status and fault LEDs.
Working Principle:
Field signals are conditioned, filtered, and multiplexed before being digitized by a high-resolution ADC. The digital values are scaled according to configuration and transmitted over the fieldbus to the controller.
Field signals are conditioned, filtered, and multiplexed before being digitized by a high-resolution ADC. The digital values are scaled according to configuration and transmitted over the fieldbus to the controller.
Installation Requirements:
- Wiring: Use shielded twisted-pair cables; ground the shield at the module end only.
- Base Module: Must be mounted on a compatible TB800-series terminal base.
Usage Precautions:
- Loop Power: Verify if external 24VDC loop power is required for 2-wire transmitters.
- Signal Limits: Do not exceed maximum input ratings to prevent permanent damage.
