Excellent PLC
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Product Description
The ABB Bailey NIAI02 is an analog input termination module designed for use in the Infi 90 distributed control system. It facilitates the connection between process field devices and the analog slave modules, serving as a termination interface for low-level analog signals such as millivolt and thermocouple inputs.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | NIAI02 |
| Function | Analog Input Termination |
| Input Type | Thermocouple / Millivolt (0–100 mV / ±100 mV) |
| Channel Count | 8 input channels |
| Input Isolation | Isolated per channel |
| Cold Junction Compensation | Supported via RTD |
| Operating Voltage | Typically passive (connected via IMASM02) |
| Compatible Modules | IMASM02 Analog Slave Module |
| Operating Temperature | 0 to 70 °C (32 to 158 °F) |
| Humidity | 0%–95% non-condensing |
| Mounting | Panel mount or via mounting unit (MMU) |
| Dimensions (W x H x D) | 120 x 150 x 50 mm |
| Weight | 0.5 kg |
Applications
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Industrial process control
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Thermocouple and millivolt sensor termination
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Power plant and utility control systems
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Chemical, refinery, and manufacturing process I/O interfacing
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Integration with ABB Infi 90 control networks
Product Advantages
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Reliable Signal Termination: Supports precise interfacing of low-level analog signals to IMASM02 modules.
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Thermocouple Compatibility: Accommodates a wide range of thermocouple types.
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Cold Junction Compensation: Enables high accuracy for temperature input measurements.
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System Compatibility: Seamless integration with ABB Infi 90 systems and slave modules.
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Modular Design: Easy replacement and installation during maintenance or upgrades.
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Industrial Grade: Designed to operate in demanding industrial environments.
Frequently Asked Questions (FAQ)
Q1: What types of inputs does the NIAI02 accept?
A1: It accepts thermocouple and millivolt signals up to ±100 mV.
Q2: Is cold junction compensation supported?
A2: Yes, it supports local cold junction compensation via integrated RTDs.
Q3: How many input channels does the NIAI02 support?
A3: The module supports 8 input channels.
Q4: Which slave module is compatible with the NIAI02?
A4: It works with the IMASM02 analog slave module.
Q5: Does the module provide input isolation?
A5: Yes, each channel is electrically isolated.
Q6: Can the NIAI02 be used for redundant system configurations?
A6: Yes, it is compatible with redundant Infi 90 architectures.
Q7: What are the mounting options?
A7: It can be mounted using a standard panel or via a mounting unit (MMU).
Q8: Is it hot-swappable?
A8: No, power should be disconnected before replacement to avoid process upsets.
Q9: What environmental conditions can it withstand?
A9: Temperature range from 0–70°C and up to 95% non-condensing humidity.
Q10: Is the NIAI02 still supported for newer ABB systems?
A10: While still widely used, it is primarily intended for legacy Infi 90 systems.
Related ABB Bailey Models
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| NIAI03 | Analog Input Termination Module | 120 x 150 x 50 | 0.5 |
| NIAI04 | Analog Input Termination Module | 120 x 150 x 50 | 0.5 |
| NIAM02 | Analog Master Termination Module | 120 x 150 x 50 | 0.5 |
| NTTA01 | RTD Termination Unit | 120 x 150 x 50 | 0.5 |
| NTAI02 | Analog Input Termination Unit | 120 x 150 x 50 | 0.5 |
| NTAI03 | Analog Input Termination Unit | 120 x 150 x 50 | 0.5 |
Popular ABB Models
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| IMAMM03 | Analog Master Module | 120 x 150 x 50 | 0.5 |
| IMASM02 | Thermocouple Analog Slave Module | 120 x 150 x 50 | 0.5 |
| IMASM03 | RTD Analog Slave Module | 120 x 150 x 50 | 0.5 |
| INNIS01 | Network Interface Slave Module | 120 x 150 x 50 | 0.5 |
| INNPM12 | Network Processing Module | 120 x 150 x 50 | 0.5 |
| NTDI01 | Digital Input Termination Unit | 120 x 150 x 50 | 0.5 |
