Allen-Bradley |1771-ID16|AC/DC (120V) Isolated Input Module
Description
The 1771-ID16 is an AC/DC (120V) isolated input module designed for industrial control systems. It handles inputs from devices like limit switches, float switches, selector switches, and pushbutton switches. This module must be installed in a Series B I/O chassis and is not compatible with the 1771-AL local I/O adapter.
Features
- Customer-selectable input filtering: To limit voltage transients caused by contact bounce and electrical noise.
-
Delay times:
- AC: 9.0ms or 18.0ms (on-to-off), 1.0ms (off-to-on)
- DC: 9.0ms (on-to-off), 1.2ms (off-to-on)
- Factory default filter time: Set to 9.0ms.
- Power requirements: Requires 75mA from the I/O chassis backplane power supply.
Technical Specifications
- Number of inputs: 16 independent inputs divided into two groups of 8.
-
Voltage range:
- AC: 74-138V RMS, 47-63Hz
- DC: 105-138V
-
Minimum input voltage:
- AC: 74V
- DC: 105V
-
Input signal delay:
- AC: Selectable 9ms or 18ms (on-to-off), 1.0ms (off-to-on)
- DC: 9.0ms (on-to-off), 1.2ms (off-to-on)
-
Input impedance:
- AC: Minimum 9.3KΩ at 47Hz, 6.9KΩ at 63Hz
- DC: 75KΩ off, 48KΩ on
- Power dissipation: Maximum 7.0W, minimum 0.3W
- Thermal dissipation: Maximum 23.8 BTU/hr, minimum 1.0 BTU/hr
- Backplane current: Maximum 75mA
- Isolation voltage: 1500V AC RMS channel-to-channel, 1500V AC RMS channel-to-backplane
- Maximum cable length: 1000 feet (304.8 meters)
-
Environmental conditions:
- Operating temperature: 0°C to 60°C (32°F to 140°F)
- Storage temperature: -40°C to 85°C (-40°F to 185°F)
- Relative humidity: 5% to 95% non-condensing
Allen-Bradley |1771-ID16|AC/DC (120V) Isolated Input Module


Allen-Bradley |1771-ID16|AC/DC (120V) Isolated Input Module
Description
The 1771-ID16 is an AC/DC (120V) isolated input module designed for industrial control systems. It handles inputs from devices like limit switches, float switches, selector switches, and pushbutton switches. This module must be installed in a Series B I/O chassis and is not compatible with the 1771-AL local I/O adapter.
Features
- Customer-selectable input filtering: To limit voltage transients caused by contact bounce and electrical noise.
-
Delay times:
- AC: 9.0ms or 18.0ms (on-to-off), 1.0ms (off-to-on)
- DC: 9.0ms (on-to-off), 1.2ms (off-to-on)
- Factory default filter time: Set to 9.0ms.
- Power requirements: Requires 75mA from the I/O chassis backplane power supply.
Technical Specifications
- Number of inputs: 16 independent inputs divided into two groups of 8.
-
Voltage range:
- AC: 74-138V RMS, 47-63Hz
- DC: 105-138V
-
Minimum input voltage:
- AC: 74V
- DC: 105V
-
Input signal delay:
- AC: Selectable 9ms or 18ms (on-to-off), 1.0ms (off-to-on)
- DC: 9.0ms (on-to-off), 1.2ms (off-to-on)
-
Input impedance:
- AC: Minimum 9.3KΩ at 47Hz, 6.9KΩ at 63Hz
- DC: 75KΩ off, 48KΩ on
- Power dissipation: Maximum 7.0W, minimum 0.3W
- Thermal dissipation: Maximum 23.8 BTU/hr, minimum 1.0 BTU/hr
- Backplane current: Maximum 75mA
- Isolation voltage: 1500V AC RMS channel-to-channel, 1500V AC RMS channel-to-backplane
- Maximum cable length: 1000 feet (304.8 meters)
-
Environmental conditions:
- Operating temperature: 0°C to 60°C (32°F to 140°F)
- Storage temperature: -40°C to 85°C (-40°F to 185°F)
- Relative humidity: 5% to 95% non-condensing