X20DC1396
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The B & R Automation X20DC1396, part of the X20 Series, features a nominal input voltage of 24 VDC. It has status indicators for I/O function per channel, operating state, and module status, plus diagnostics like module run/error using LEDs and software. The module's input current at 24 VDC is approximately 3.3 mA.
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Product Description:
The X20DC1396 provides an input for an ABR incremental encoder and an additional input channel, primarily for an enable switch. It is designed to work with other X20 modules and acts as a digital signal processor. As a robust digital counter module, the X20DC1396 provides a set of status indicators for notifying the user of the module's current states, errors, and the functions that occur in the I/O channels. For most automation environments, 24 VDC is the standard supply voltage. For this module, the same terminal voltage applies, although some deviation from this terminal voltage is acceptable. Particularly, the X20DC1396's ABR incremental encoder and digital input support a supply voltage of 24 VDC.
During normal operation, the incremental encoder draws a maximum current of 600 mA at an asymmetrical voltage of 24 V. The maximum frequency for the ABR incremental encoder is 100 kHz. The encoder performs evaluation four times and uses a 16/32-bit counter. On the other hand, the X20DC1396's digital input draws approximately 3.3 mA at an input voltage of 24 V. The input channel uses a 3-wire connection, has a resistance of 7.19 kOhms, and offers an additional function for a home enable switch.
The X20DC1396's reference enable switch is isolated from the bus but not from the encoder. Only the ABR incremental encoder includes protection devices for its supply voltage. Like other standard modules, the X20DC1396 has a protection class of IP 20 and supports an installation level up to 2000 meters without performance consequences. Finally, the X20DC1396 both supports horizontal and vertical installations and operates well at either installation orientation. Careful consideration must be given, however, to the X20DC1396's spacing from adjacent modules.
Frequently Asked Questions about X20DC1396:
Q: What is the input resistance of the X20DC1396's ABR incremental encoder?
A: The X20DC1396's ABR incremental encoder has an estimated input resistance of 18.4 kilo ohms.
Q: What is the X20DC1396's switching threshold?
A: For both the X20DC1396's digital input and ABR incremental encoder, the low switching threshold is 5 volts, while the high switching threshold is 15 volts.
Q: What are the capabilities of the ABR incremental encoder's protection system?
A: The X20DC1396's incremental encoder integrates a protection system for its power supply that protects the device from short circuit faults and overloading.
Q: What is the insulation voltage between the X20DC1396's bus and encoder?
A: The measured insulation voltage between the X20DC1396's encoder and bus is 500 V.
Q: What should be the X20DC1396's spacing from adjacent modules?
A: B&R Automation recommends a minimum pitch or distance of 12.5 mm when installing the X20DC1396 with other adjacent modules.
