CB410-EE1 T150/T155 SWL base station

The AM 28x/x series is a hybrid module and enables the connection of four analog inputs and four analog outputs with

voltage or current signals. The analog inputs of the AM 28x/A process both single-ended as well as differential voltage

signals. The AM 280/B is equipped with current inputs and outputs.

A sensor failure, should it occur, is reported to the higher-level CPU module and can be evaluated accordingly in the

application. These modules are attached directly to a CPU module or can be operated with all KEBA controls by means

of bus couplers.

Analog inputs

AM 280/A AM 282/A AM 280/B

Number of inputs 4 4 4

Type Voltage input Voltage input Current input

Resolution 14 bit 16 bit 14 bit

Signal range ±10 V or 0 – Uref (10 V) ±10 V or 0 – Uref (10 V) 0 – 20 mA or 4 – 20 mA

Max. measurement signal ±10.4 V ±10.4 V-0.8 mA … 20.8 mA

Input type Differential or single-ended Differential or single-ended Differential

Galvanic isolation No No No

Reference voltage output 10 V ±2.5 %; max. 20 mA 10 V ±2.5 %; max. 20 mA

Scan repeat cycle 1 ms 1 ms 1 ms

Input impedance in signal range 10 MΩ 10 MΩ < 200 Ω

Input filter characteristic First order First order First order

Limiting frequency of the input filter 250 Hz 250 Hz 250 Hz

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