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Allen Bradley | PLC-5 | 1771-NOC | Image

Allen Bradley | PLC-5 | 1771-NOC | Image Allen Bradley | PLC-5 | 1771-NOC | Image

SKU 2174360  UPC 0799705797499

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The 1771-NOC is a high-resolution isolated output analog module from Allen-Bradley and it is part of the 1771 Series N high-resolution modules. The module supports current outputs only. The outputs operate within a current range of between 0 and 25 milliamperes. The 1771-NOC has an output resolution of 3.2µA per bit with 13 bits unipolar. The module has an output impedance that is greater than 1MΩ and an output maximum drive capability of 20 milliamps at 0 to 1 kilo ohm and 25 milliamps at 0 to 700 ohms.

Additionally, the module has an overvoltage protection (output) of 140 Volts AC RMS (continuous), an offset drift rating of +/-1.0µA per degree Celsius, and its gain drift rating is +/-50ppm per degree Celsius. The 1771-NOC has a maximum module update time of about 25 milliseconds and a 500-microsecond settling time for the digital-analog converter. The module has a calibration accuracy (full range) of 0.01% at 25 degrees Celsius and 0.08% at 25 degrees Celsius.

At a minimum of 1% FSR (full-scale range), the 1771-NOC has a ramping value of 0.16 milliamps per second and 32 milliamps per second at a maximum of 200% FSR. Also, the 1771-NOC has a calibration values set 0.5 milliamps per 22 milliamps. The module exerts a current load of 2.8 amps at 20 milliamps and 3.2 amperes at 25 milliamps on the backplane and it dissipates 5 watts of heat at 5 Volts. Ensure proper grounding is implemented when handling the 1771-NOC since the module is sensitive to electrostatic charges.

AB High Res. Iso. Anlg. Mod. 1771N 1771NO 1771NOC

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