MeloAuto-Trusted PLC & DCS Parts Supplier
Engineered for ABB Bailey INFI 90 Voltage Signal Acquisition
This module captures high-level analog voltage signals from field devices. It provides accurate measurement for the ABB Bailey SPFEC12 unit. You will find this analog input card in INFI 90 control racks. Unlike universal input modules, this version focuses on voltage signals only. It handles up to eight independent channels for standard 0-10V transmitters.
Technical Specifications & Physical Dimensions
We designed this analog input module for voltage-based measurements. The table below presents all verified technical specifications.
| Parameter | Specification |
|---|---|
| Physical Dimensions (W x H x D) | 160mm x 120mm x 50mm |
| Total Weight | 0.54 kg (540 grams) |
| Analog Input Channels | 8 single-ended inputs |
| Input Voltage Range | 0V to 10V DC (0-5V optional) |
| Resolution | 12 bits (4096 counts) |
| Input Impedance | 100 kΩ minimum |
| Scan Time | 160 milliseconds for all channels |
| Operating Voltage | 24V DC (18V – 32V) |
Functional Architecture and Signal Processing
This module connects to voltage-output transmitters and sensors. It uses eight single-ended inputs for standard industrial signals. You can set each channel for either 0-5V or 0-10V range. Moreover, the module includes input filtering for noise rejection. These components remove high-frequency interference from measurements. Consequently, the board delivers stable readings in electrically noisy environments.
Installation and Operational Guidelines
The ABB Bailey SPFEC12 provides 500V isolation between inputs and backplane. It consumes 110 mA at 24V DC during normal operation. You must configure the voltage range using the onboard jumpers. Always use twisted-pair cables for all analog input connections. This practice reduces common-mode noise pickup. Furthermore, the module includes open-wire detection for each channel. This feature alerts operators to disconnected sensor wiring immediately.
Physical Characteristics and Environmental Limits
This analog input module has a rugged, industrial-grade plastic housing. Its moderate 0.54 kg weight allows for easy rack installation. The layout follows ABB Bailey standard INFI 90 specifications. Therefore, it fits securely into any INFI 90 I/O rack. The module includes LED indicators for power and channel status. In addition, it maintains stable operation between 0°C and 60°C ambient temperature. You can store this unit safely between -25°C and 85°C.