07KT97 GJR5253000R0278 ABB Procontic Basic Unit For Industrial Automation

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The technical specifications of the inputs are the same with the other digital inputs, but with the following exception: Caused by the direct electrical connection with the output, the varistor for demagnetization of inductive loads (see figure above) is also in effect at the input. Therefore, the voltage difference between UP5 and the input signal must not be greater than the limit voltage of the varistor. The limit voltage of the varistor is ca. 36 V. This means, that if UP5 = 24 V, the input signal voltage must be between -12 V and +30 V. If UP5 = 30 V, the input voltage has to be within -6 V and +30 V.

If all of the 8 channels of the group are used as inputs, and if in addition the UP5 terminal is left unconnected, no restrictions exist for the inputs. The input signal voltages then may be within -30 V and +30 V. There is no restriction for the input/output group concerning its safety against reversed polarity.

Resolution in the PLC system: The measured values are converted with a resolution of 12 bits, i.e. 11 bits plus sign for voltage and 12 bits without sign for currents. The ranges 0...5 V and ±5 V are converted with 10 bits plus sign.

The analog inputs can be used individually in a lot of different operating modes (even as digital inputs). The operationg modes are configurable.

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