ABB IMASI13 Analog Input Module – 16-Channel, 24-Bit A/D, Harmony Rack I/O
16-Channel Analog Input Cold-Junction Compensation
24-Bit A/D Conversion Thermocouple / RTD / 4–20 mA
Independent Channel Configuration Isolated Analog Inputs
Place of Origin:
SWEDEN
Brand Name:
ABB
Model Number:
IMASI13
Document:
16-Channel Analog Input Cold-Junction Compensation
,24-Bit A/D Conversion Thermocouple / RTD / 4–20 mA
,Independent Channel Configuration Isolated Analog Inputs
ABB Bailey IMASI13 is a Harmony rack I/O analog input module for the Symphony Enterprise Management and Control System. It interfaces analog field signals with the control system.
- Independent channel configuration
- Isolated A/D conversion
- Automatic and field calibration
- Cold-junction compensation
- Engineering-unit conversion
- Open-input detection
- Built-in diagnostics
- I/O expander bus interface
| Module Specifications | Details |
|---|---|
| Product Type | Analog Input Module |
| System | Harmony Rack I/O |
| Channels | 16 |
| A/D Resolution | 24-bit |
| A/D Converter | Delta-sigma type |
| Conversion Time | 180 ms for all 16 channels |
| Mounting | One slot in a standard module mounting unit |
| Logic Supply | 5 VDC |
| Typical Current | 500 mA |
| Maximum Current | 750 mA |
| Input Types | Supported Configurations |
|---|---|
| Thermocouple: E, J, K, L, N, R, S, T and U Millivolt: -100 to +100 mV and 0 to 100 mV High-level voltage: 0-5 VDC, 1-5 VDC, 0-10 VDC and -10 to +10 VDC 4-20 mA Three-wire RTD User-specified high-level voltage range within documented limits |
|
| Input Performance | Specifications |
|---|---|
| Minimum input impedance (millivolt/thermocouple) | 10 MΩ |
| Minimum input impedance (voltage/current) | 100 kΩ |
| Current accuracy (0-70°C) | 0.02% of full scale |
| High-level voltage accuracy | 0.04% of full scale |
| Low-level voltage accuracy | 0.03% of full scale |
| Resistance accuracy | 0.05% of full scale |
| Maximum temperature effect | ±0.003% of full scale/°C |
| Cold-junction reference accuracy | ±0.5°C |
| Software temperature linearization accuracy | ±0.1°C |
| Isolation & Rejection | Specifications |
|---|---|
| Channel-to-channel and channel-to-logic isolation | 250 VDC/VRMS at 60 Hz |
| Normal-mode rejection | -80 dB minimum |
| Common-mode rejection | -120 dB minimum |
| Insulation resistance | 100 MΩ |
| Dielectric withstand | 1.4 kV rms/1 minute |
| Impulse voltage | ±2.55 kVp common mode / ±1 kVp normal mode |
| Environmental | Specifications |
|---|---|
| Operating temperature | 0°C to 70°C |
| Relative humidity | 5-95% up to 55°C, noncondensing |
| Relative humidity at 70°C | 5-45%, noncondensing |
| Pollution degree | 1 |
| Altitude | Sea level to 3 km |
| Air quality | Noncorrosive |
| Shipping weight | 1.146 kg |
| Shipping container | 27.94 × 35.56 × 5.54 cm |
Each analog input is processed independently through signal conditioning, A/D conversion, filtering, correction, and engineering-unit conversion. Thermocouple inputs use a cold-junction reference, while applicable channels support open-input detection.
The documented architecture includes a microcontroller, memory, isolated A/D converters, digital input multiplexer, cold-junction reference, diagnostic circuits, and an I/O expander bus interface.
Configuration involves Function Codes 215 and 216, the module address, input jumpers, and termination-unit settings.
NTAI06 is the documented analog input termination unit. It supports the applicable voltage, current, and RTD input arrangements.
Original-System Compatibility: The manufacturer states that IMASI13 is "fully compatible with existing INFI 90 OPEN Strategic Enterprise Management Systems."
Historical Replacement: IMASI13 is documented as a direct replacement for IMASI03 with only minor modifications. Function Code 216, specification S11, requires adjustment during this replacement.
- NTAI06 -- Analog Input Termination Unit
- IEMMU11 / IEMMU12 / IEMMU21 / IEMMU22 -- Module Mounting Units
- NFTP01 -- Field Termination Panel
- I/O Expander Bus
- Termination cable
Typical maintenance situations include:
- Loss of analog input data
- Open-input conditions
- Module diagnostic faults
- I/O expander bus communication problems
- Configuration errors
1. What should be checked before installing an IMASI13?
Check the module address, jumper settings, termination-unit configuration, and field wiring before installation.
2. What do the IMASI13 front-panel LEDs indicate?
The LEDs indicate operating status, configure mode, I/O expander bus communication loss, and module failure.
3. What calibration functions are available for IMASI13?
The documentation covers automatic calibration, field calibration, individual channel calibration, and gain/offset adjustment.
4. What preventive maintenance is recommended for IMASI13?
Maintenance includes PCB inspection and cleaning, edge-connector cleaning, and checking signal, power, and ground connections.
5. How should a failed IMASI13 be replaced?
The manufacturer recommends module replacement rather than component-level repair. The replacement should use the applicable switch and jumper settings of the original installation.
6. What information should I provide for an IMASI13 RFQ?
Please provide Part Number, Quantity, Destination, Required Date, and Machine/System Model.
Amikon supports industrial automation spare-part requirements with:
- Pre-shipment testing
- Protective packaging
- DOA support
- Return and replacement handling
- Warranty support
- After-sales assistance
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