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Engineered for ABB Bailey INFI 90 Signal Conversion
This module converts and isolates analog signals for the control system. It provides accurate signal conditioning for the ABB Bailey IIDST04 unit. You will find this conditioner in INFI 90 distributed control systems. Unlike basic converters, this version supports four independent channels. It handles both voltage and current input signals.
Technical Specifications & Physical Dimensions
We designed this signal conditioner for industrial measurement accuracy. The table below presents all verified technical specifications.
| Parameter | Specification |
|---|---|
| Physical Dimensions (W x H x D) | 140mm x 110mm x 45mm |
| Total Weight | 0.42 kg (420 grams) |
| Input Channels | 4 independent channels |
| Input Voltage Range | 0-10V, ±10V, 0-5V (selectable) |
| Input Current Range | 0-20mA, 4-20mA (selectable) |
| Output Signal | 0-10V or 4-20mA (configurable) |
| Accuracy | ±0.1% of full scale |
| Operating Voltage | 24V DC (18V – 32V) |
Functional Architecture and Channel Isolation
This conditioner connects to field transmitters and sensors. It uses four independent channels with full galvanic isolation. You can configure each channel for a different input type. Moreover, the module includes programmable zero and span adjustments. These components calibrate the output to match specific measurement ranges. Consequently, the board delivers precise scaled signals to the INFI 90 I/O system.
Installation and Operational Guidelines
The ABB Bailey IIDST04 updates all four channels every 50 milliseconds. It provides 1500V isolation between input, output, and power. You must set the DIP switches for each channel’s configuration. Always use shielded cables for input signals longer than 30 meters. This practice reduces noise pickup on sensitive analog circuits. Furthermore, the module supports loop power for 2-wire transmitters. This feature eliminates external power supplies for field devices.
Physical Characteristics and Environmental Limits
This signal conditioner has a rugged, industrial-grade plastic housing. Its moderate 0.42 kg weight allows for easy DIN rail mounting. The layout follows ABB Bailey standard INFI 90 specifications. Therefore, it fits securely into any INFI 90 termination assembly. The module requires 50mm clearance for ventilation. In addition, it maintains stable operation between -10°C and 55°C ambient temperature. You can store this unit safely between -25°C and 70°C.