Allen-Bradley 1771-ID16-A

This module must be used in a series B I/O chassis. The 1771-ID16 is not compatible with the 1771-AL local I/O adapter. This module contains customer-selectable input filtering to limit the effects of voltage transients caused by contact bounce and/or radiated electrical noise. The delay due to filtering is 9.0 or 18.0ms for turning ac inputs on to off, and 1.0ms for turning ac inputs off to on; 9.0ms for turning dc inputs on to off, and 1.2ms for turning dc inputs off to on. The filter time is factory set to 9.0ms. This module is designed to operate with limit switches, float switches, selector switches, and push button switches.

Use the plastic keying bands, shipped with each I/O chassis, to key the I/O slots to accept only this type of module. The module circuit board is slotted in two places on the rear edge. The position of the keying bands on the backplane connector must correspond to these slots to allow insertion of the module. You can key any connector in an I/O chassis to receive this module except for the left-most connector reserved for adapter or processor modules. Place keying bands between the following numbers labeled on the backplane connector: Between 22 and 24 Between 26 and 28

Inputs per Module: 16
Module Location: 1771-A1B thru -A4B I/O chassis
Input Voltage Range: 74-138V ac, 47-63Hz; 105-138V dc
Nominal Input Voltage: 120V ac/dc
Input ON Voltage (minimum): 74V ac; 105V dc
Input Signal Delay: ac only; Selectable: 9ms or 18.0ms, on to off ; dc: 9.0ms on to off
Input ON Current (minimum): 6.0mA @ 74V ac, 47-63Hz; 12.0mA @ 105V dc
Input OFF Current (minimum): 4mA @ 45V ac, 47-63Hz; 0.8mA @ 63V dc
Input OFF Voltage (maximum): 45V ac; 66V dc