ABB Module DSQC352A 3HNE00009-1 3HAC1462-1 ABB DSQC352A 3HNE000091 3HAC14621 Profibus I/O Unit High reliability

ABB Module DSQC352A 3HNE00009-1 3HAC1462-1 ABB DSQC352A 3HNE000091 3HAC14621 Profibus I/O Unit High reliability

Product Description:

The input impedance is ca. 330 Ω. The current input has a self-protecting mechanism. If the input current gets too high, the shunt is switched off and the value for range overflow is generated. About every second, the unit tries to switch on the shunt again. In this way the correct measurement
will succeed after the current has reached a normal value again. The trigger of the self-protecting mechanism is displayed by the red LED Ovl as long as the overload is present. Inthe PLC system an error message is then stored (FK4, error number 4). The following figure shows the connection of a 3-wire sensor powered by 24 V DC and of a 2-pole sensor powered electrically isolated. Both sensors work as active current sources 0...20 mA.

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Product's Character:

nput voltages that exceed the measuring range cause the overflow numerical value of +32767. If the measured value is below the range, the underflow numerical value Input currents that exceed the measuring range cause the overflow numerical value of +32767. If the measuredvalue is below the range, the underflow numerical value of -32767 is set. The input impedance is ca. 330 Ω. The current input has a self-protecting mechanism. If the input current gets too high, the shunt is switched off and the value for range overflow is generated. About every second, the unit tries to switch on the shunt again. In this way the correct measurement will succeed after the current has reached a normal value again.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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