What types of signals does this module accept?
Differential 4–20 mA analog inputs across 16 channels
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Schneider Electric
140-ACI-040-00
Analog Input Module, 16‑Channel Differential, 4–20 mA
Schneider Electric
From $990In stockDiscontinued
Product Description
This analog input module delivers 16 differential channels for 4–20 mA signal acquisition, suited for distributed I/O in industrial automation systems. It employs a single‑pole low‑pass filter with a 3 dB cutoff around 34 Hz to reduce noise while maintaining signal fidelity. The module provides 12‑bit resolution (0 to 4095 counts) for current inputs and includes broken‑wire detection for 4–20 mA loops to improve diagnostics. Isolation between channels and the backplane bus is rated to withstand 1780 VAC for 60 seconds, enhancing safety and noise immunity. Local signaling is provided via per‑channel LEDs to indicate fault status for rapid troubleshooting. Power consumption is optimized with a 5 W dissipation and a 360 mA bus current requirement. Typical applications include process instrumentation, manufacturing cells, and monitoring systems where reliable analog data capture and robust EMC performance are required. The module follows standard format for easy integration and addressing requires 17 input words.
Key Features
- •16 differential analog input channels
- •4–20 mA inputs, 12‑bit resolution
- •Single‑pole low‑pass filter around 34 Hz
- •Broken wire detection on 4–20 mA loops
- •1780 VAC isolation channel to bus
- •Per‑channel LED fault indication
- •5 W power dissipation, 360 mA bus current
Specifications
- Model number
- 140-ACI-040-00
- Input channels
- 16 differential
- Input signal
- 4–20 mA
- Resolution
- 0–4095 counts
- Filter
- Single pole low pass, 3 dB at 34 Hz ±25%
- Isolation (channel to bus)
- 1780 VAC for 60 s
- Bus current requirement
- 360 mA
- Power dissipation
- 5 W
- Input impedance
- 250 Ω
- Absolute maximum input
- 30 mA
- Common mode rejection
- > −90 dB at 60 Hz
- Addressing
- 17 input words
- Fault detection
- Broken wire 4–20 mA
- Local signaling
- 16 red LEDs channel fault
- Marking
- CE
- Module format
- Standard
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Power-on or function test status is stated when available, with clear condition grading.
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FAQ
What is the input resolution?
12‑bit resolution providing 0–4095 counts for 4–20 mA
Is there isolation between I/O and the bus?
Yes, 1780 VAC isolation for 60 seconds channel to bus
Does it detect loop faults?
Yes, broken wire detection for 4–20 mA loops with LED indication
What are the power requirements?
360 mA bus current with 5 W power dissipation