ABB Module YXO126 4890024-UN YXO 126 ABB YXO126 superior quality product water, water treatment / environmental protecti

ABB Module YXO126 4890024-UN YXO 126 ABB YXO126 superior quality product water, water treatment / environmental protection

Product Description:

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.
of the varistor.If the counter is used in the operating modes 1 or 2 (up-counter), the output A 62,00 is only available for the counter. If the output is to use as a normal digital output, it has to
be made sure, that the high-speed counter is not configured to the operating modes 1 or 2 (see also the chapter "High-speed counter").Features of the analog inputs:The 8 analog inputs are not electrically isolated.The resolution of the A/D converter is 12 bits. Analog signals are conducted in shielded cables (seeThe analog inputs can be configured individually in a lot of different operating modes (even as digital inputs). The configuration is performed by setting certain bits in the system constants KW 86,00 to KW 86,07 as follows

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If the open-circuit or short-circuit monitoring is configured, the detected error is displayed by the red LED Ovl as long as it is present. In the PLC system an error message is stored (FK4, error number 9).
In order to avoid error messages with unused analog inputs, it is useful, not to configure this channels for Pt100. Connection of Pt100 temperature sensors in 3-wire configuration If the sensors are located close together, only one core is needed as
the return wire AGND1. In the operating mode "Pt100 in 3-wire configuration" two adjacent analog inputs belong together (e.g. EW 6,00 and EW 6,01). For configuration, both inputs must be configured to the
desired operating mode, see configuration table Fig. The constant current of the one channel flows through the Pt100 resistance sensor, the constant current of the other channel through one of the wires.
The basic unit 07 KT 94 calculates the measuring value from the two voltage drops and stores it under the odd address

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