ABB AI893 3BSC690141R1 Analog Input Module The ABB AI893 3BSC690141R1, also cataloged as the AI893 Analog Input Module, operates as...
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ABB AI893 3BSC690141R1 Analog Input Module
The ABB AI893 3BSC690141R1, also cataloged as the AI893 Analog Input Module, operates as a dedicated hardware component for RTD and thermocouple signal acquisition within ABB S800 I/O systems. The module provides 8 input channels with intrinsic safety interface support for temperature measurement applications.
Hardware Specifications
Parameter
Specification
Model
AI893 3BSC690141R1
Brand
ABB
Product Type
Analog Input Module
Origin
Sweden
Weight
0.2 kg
Dimensions
4.4 x 12.1 x 10.8 cm
Operating Temp
0 to +55 deg C
Storage Temp
-40 to +70 deg C
Power Consumption
Not specified
Input Type
RTD or TC
Number of Channels
8
Resolution
15 bit + sign
Input Impedance
>10 Mohm
Common Mode Voltage Input
+/- 5 V
CMRR at 50 Hz, 60 Hz
>100 dB
NMRR at 50 Hz, 60 Hz
>80 dB
Signal Interface
Intrinsic safety interface
Product Function
Temperature signal input processing
ABB S800 I/O Backplane Integration and Signal Processing
The AI893 module connects to ABB S800 I/O architecture through the standard I/O communication structure and processes field temperature signals from RTD and thermocouple sensors. In addition, the module supports I/O density scaling with 8 measurement channels in a compact hardware format.
The module performs analog signal conversion using 15 bit plus sign resolution. Furthermore, the input stage provides high impedance measurement characteristics and noise rejection performance through common mode and normal mode rejection specifications.
ABB industrial control modules use defined backplane bus communication methods for deterministic data exchange between I/O hardware and controller platforms. The AI893 supports temperature measurement configurations where signal integrity, channel separation, and correct sensor wiring are required.
Frequently Asked Questions
Q: What sensor types can the ABB AI893 3BSC690141R1 accept? A: The AI893 accepts RTD and thermocouple (TC) input signals through its 8 analog input channels with intrinsic safety interface support.
Q: What is the resolution of the AI893 analog measurement input? A: The module provides 15 bit plus sign resolution for analog temperature signal conversion.
Q: Does the AI893 support intrinsic safety field connections? A: Yes. The module includes an intrinsic safety interface for compatible field measurement applications.
Field Installation Guidelines
Install the AI893 module according to ABB S800 I/O system installation procedures and verify the correct module position before power application.
Connect RTD and thermocouple field wiring using suitable industrial instrumentation cables. Maintain proper cable routing separation between analog signal lines and high-voltage power conductors to reduce electrical interference.
For thermocouple applications, verify correct polarity and compensation requirements before commissioning. Ensure shielding practices follow the plant grounding standard and avoid multiple grounding points that may introduce measurement noise.
Check terminal connections, module addressing, and controller configuration before placing the analog input channel into service.
