ABB AI561 AC500-eCo 4-Channel Analog Input Module
Four differential voltage/current inputs extend compact AC500-eCo controllers with configurable analog measurement.
Overview
ABB AI561 is a compact AC500-eCo analog input module with four individually configurable differential voltage or current channels. It supports unipolar voltage and current ranges plus bipolar voltage ranges, uses a 24 V DC process supply and connects through removable 9-pin and 11-pin terminal blocks ordered separately. The module is not galvanically isolated from the I/O bus, so sensor grounding and common-mode voltage must follow ABB wiring guidance. Hardware version E0 or later extends bipolar resolution to 13 bits including sign.
Specs
| Manufacturer | ABB |
|---|---|
| Article Number | 1TNE968902R1101 |
| Product Family | AC500-eCo |
| Module Type | Analog input module |
| Analog Inputs | 4 individually configurable differential channels |
| Voltage Ranges | 0 to 5 V; 0 to 10 V; -2.5 to +2.5 V; -5 to +5 V |
| Current Ranges | 0 to 20 mA; 4 to 20 mA |
| Resolution | 12 bits; bipolar 13 bits including sign from hardware version E0 |
| Typical Conversion Time | 500 µs per channel |
| Process Supply | 24 V DC |
| Current Consumption via L+ | 0.1 A |
| Galvanic Isolation | No isolation between inputs and I/O bus |
| Maximum Power Dissipation | 2.7 W |
| Terminal System | Separate removable 9-pin and 11-pin blocks |
| Lifecycle | Active |
Features
Core Functions
- Measures four differential voltage or current signals.
- Configures every channel independently across the supported ranges.
- Protects current inputs by switching to high impedance when the measurement range is exceeded.
- Provides a 300 µs input-filter time constant for voltage and current.
- Supports horizontal or vertical mounting with natural-convection cooling.
- Uses a green supply LED and red error LED rather than one signal LED per channel.
Product Identity
- Manufacturer: ABB
- Model: AI561
- Product Type: AC500-eCo analog input module
- Status: Active product
Applications
- Compact AC500-eCo machines requiring four analog transmitter inputs.
- Voltage and 4 to 20 mA acquisition in small control panels.
- Expansion of local or communication-interface I/O where an AI561 is explicitly supported.
- Differential measurement installations with controlled common-mode voltage.
- Service replacement where the removable terminal-block type and hardware revision are recorded.
Lifecycle
- ABB lists AI561 article 1TNE968902R1101 as Active.
- The required 9-pin and 11-pin terminal blocks are separate ordering items.
- AI561 is not a safety module and is not approved for every decentralized interface combination.
- Maintain sensor isolation, grounding and common-mode limits from the original design.
- Confirm the hardware revision before relying on the higher bipolar-resolution value.
FAQ
How many inputs does AI561 provide?
It provides four individually configurable voltage or current inputs.
Are AI561 inputs galvanically isolated from the I/O bus?
No. ABB explicitly states that galvanic isolation is not provided.
Which terminal blocks are included with the module?
The removable 9-pin and 11-pin terminal blocks are ordered separately.
What changes with hardware version E0?
For bipolar voltage ranges, version E0 or later provides 13 bits including sign.
What is the typical conversion time?
ABB specifies approximately 500 µs per channel.
Can AI561 replace AI531 in the same measurement task?
Not automatically. AI561 has four voltage/current inputs and lacks the RTD, resistance and thermocouple functions of AI531.
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