DC Input Module 1771-IB [Allen Bradley ]
DC Input Module 1771-IB [Allen-Bradley]
The 1771–IB module is compatible with the following 2 and 3–wire devices:
DC proximity switches photoelectric sensors pushbuttons limit switches float switches selector switches The off–state leakage current of your 3–wire devices should not exceed 3mA. This module contains input filtering to limit the effect of voltage transients caused by contact bounce and/or radiated electrical noise. The delay due to input filtering is nominally 12+7ms for turning inputs on, and 20+7ms for turning inputs off.
Your module receives its power through the 1771 I/O chassis backplane from the chassis power supply. The module requires 74mA from the output of this supply. Add this to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply.
Condition: Used
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