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OVERVIEW
Official designation: Allen-Bradley 1746-IH16 (SLC 500, Digital Input Module)
The 1746-IH16 is a 16-point sinking DC input module for the SLC 500 system. It reliably acquires signals in a 10–30 VDC range, offering low-power consumption and suitability for Class I, Division 2 hazardous locations.
KEY SPECS SUMMARY
Power: 5V DC @ 517 mA
Interfaces / Ports: 20-pin terminal block
Indicators: 16 Channel Status LEDs
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: SLC 500 Modular
Limit: 10–30 VDC operating range
Lifecycle: Active
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the backplane current draw of the 1746-IH16 module from the 5V DC power source?
A: The current draw from the 5V DC backplane is 517 mA.
Wiring & Installation:
Q: What input configuration (sinking or sourcing) does the 1746-IH16 module support for field devices?
A: The 1746-IH16 module supports sinking input configuration.
Troubleshooting & Compatibility:
Q: What kind of hazardous location rating does the 1746-IH16 possess?
A: This module is approved for Class 1, Division 2 hazardous locations.
Replacement & Upgrades:
Q: What is the recommended method for replacing the 1746-IH16 module in a SLC 500 system?
A: The module is hot-swappable, allowing replacement without powering down the chassis.
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