X20DC11A6
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The X20DC11A6 module from B & R Automation includes 2 digital inputs with a nominal voltage of 24 VDC, an input current of approximately 3.3 mA, and a bus power consumption of 0.01 W. Part of the X20 Series, this module features status indicators for I/O functions and a 500 VEff isolation voltage between the channel and bus.
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Product Description:
The X20DC11A6 is an X20 digital counter module that is intended for processing digital signals from other devices or modules. The X20DC11A6 contains a special ABR incremental encoder, which requires a symmetrical supply voltage of 5 volts. During operation, the incremental encoder's maximum frequency is 5 MHz using a counter size of either 16 or 32 bits. The slew rate, expressed in V/microsecond, describes how quickly a signal changes over time. For the X20DC11A6's incremental encoder, the minimum differential slew rate is 1 V/microsecond. At most, the encoder needs a current supply capable of providing a maximum current of 300 mA.
Aside from its ABR incremental encoder, the X20DC11A6 offers two extra digital inputs that may be used for processing output digital signals from other X20 units. The nominal voltage for these channels is 24 VDC, allowing a maximum deviation of -15% or 20%. The expected behavior of the digital input channels is to serve as sinks in the system. Approximately, each channel tolerates a maximum input current of 3.3 mA at 24 VDC. The input resistance for this module is 7.03 kOhms, which is close to the estimated value of 7.27 kOhms, obtained by getting the quotient of 24 V and 3.3 mA.
Like other digital counter modules under the X20 series, the X20DC11A6's channels are not isolated from one another but are isolated from the main bus. The X20DC11A6 supports horizontal and vertical installations, resulting in the following permissible temperature ranges: -25 to 60 degrees Celsius (horizontal orientation) and -25 to 50 degrees Celsius (vertical orientation). During transport, operation, and storage, the recommended relative humidity must always be non-condensing between 5 and 95 percent.
Frequently Asked Questions about X20DC11A6:
Q: What is the X20DC11A6's estimated power consumption?
A: The X20DC11A6's bus requires at least 0.01 watt, while the internal I/O needs an additional 1 watt.
Q: What are the switching thresholds for the X20DC11A6's digital inputs?
A: The X20DC11A6's digital inputs have the following threshold voltages: low threshold (<5V) and high threshold (>15V).
Q: What protection mechanisms does the X20DC11A6's encoder supply have?
A: The X20DC11A6's encoder power supply is both short-circuit proof and overload-proof.
Q: What degree of protection does the X20DC11A6 have?
A: The X20DC11A6 has a rated device protection of IP20.
Q: What installation distance would suffice for the X20DC11A6?
A: The recommended installation distance of the X20DC11A6 from adjacent modules is at least 12.5 millimeters.
