140ACI03000
Schneider Electric
Overview
The Schneider Electric 140ACI03000 is an analogue input module built for the Modicon Quantum automation platform. It provides eight differential input channels that accept either 1–5 V or 4–20 mA signals, making it suitable for connecting a wide range of field transmitters, sensors and process instruments to a Quantum PLC. Each channel is resolved at 12 bits, and a single-pole low-pass input filter (3 dB at 15 Hz, ±20%) limits high-frequency noise before conversion.
The module occupies a single Quantum slot, requires nine input words of addressing and draws 240 mA from the backplane at 2 W typical dissipation. Channel health is shown by dedicated LEDs: a green bus-active indicator, a red external-fault indicator, eight green channel-on LEDs and eight red channel-fault LEDs. With 1000 V DC channel-to-bus isolation (tested to 3000 V DC for 60 s) and 30 V DC between channels, the 140ACI03000 is engineered for electrically noisy industrial environments, and it carries CE, cUL and FM Class 1 Division 2 certifications for hazardous-location deployment.
Application & Technical Notes
From an integration standpoint, the 140ACI03000 is a multirange analogue input module that suits mixed voltage and current loops within one rack. The differential input topology rejects common-mode noise, which is valuable when transmitters are referenced to different grounds. Linearity error is held to ±0.04 % of full scale, absolute accuracy to ±0.05 % (±0.1 % maximum), and accuracy drift to ±0.0025 %/°C, so the module is dependable for monitoring rather than high-precision calibration.
Common-mode rejection exceeds −72 dB at 60 Hz and update time is 5 ms across all channels. Broken-wire detection on 4–20 mA loops and undervoltage detection on 1–5 V ranges flag wiring faults to the controller without extra hardware. With input impedance above 20 MΩ on voltage ranges and 250 Ω on current ranges, the module loads source instruments negligibly. Absolute maximum inputs are 50 V DC and 25 mA, so external over-range protection is advisable on exposed field wiring.
Maintenance & Diagnostics
The 140ACI03000 is largely maintenance-free, but a few practices keep it reliable. During commissioning, inspect the channel LEDs: a red channel-fault LED or a red external-fault LED points to open-loop wiring, an out-of-range signal or a supply issue rather than a module defect. Because the module is convection-cooled within the Quantum rack, verify that adjacent slots and rack ventilation are not blocked and that ambient temperature stays within 0–60 °C.
The conformal-coated construction resists humidity and contaminants, but keep relative humidity within 5–95 % non-condensing. Before inserting or removing the module, de-energise the rack to avoid backplane damage. For safety- or quality-critical loops, verify calibration periodically against a known source, and store spares between −40 and 85 °C in original packaging.
Sourcing & Procurement
When sourcing the 140ACI03000, confirm whether you need the standard version or the conformal-coated 140ACI03000C for harsher environments. Genuine Schneider Electric modules are recommended for new builds and safety-related loops because they carry the original CE, cUL and FM certifications and full warranty support. Compatible or third-party equivalents may cost less, but verify that isolation ratings, accuracy and certifications match your application before substitution, since mismatches can void approvals.
For long-lead or discontinued parts, refurbished genuine units from a reputable industrial supplier are often a lower-risk alternative than unknown clones. Buy from authorised distributors where possible, validate the supplier, and retain the manufacturer part number and serial traceability for warranty and audit purposes.
Frequently Asked Questions
What signal types does the 140ACI03000 accept?
It accepts 1–5 V voltage signals and 4–20 mA current-loop signals across its eight differential input channels, selected per the module configuration.
How many channels and what resolution?
Eight differential analogue input channels, each resolved at 12 bits.
What isolation is provided?
1000 V DC isolation between channels and the bus, tested to 3000 V DC for 60 seconds, with 30 V DC isolation between individual channels.
What does the red channel-fault LED indicate?
It flags a per-channel fault such as a broken 4–20 mA wire, an out-of-range 1–5 V signal, or a detected undervoltage condition on that channel.
Is the 140ACI03000 the same as the 140ACI03000C?
The 140ACI03000C is the conformal-coated variant for humid or contaminated environments; the electrical specifications are otherwise equivalent.
Specifications
analog input module Modicon Quantum - 8 I multirange
Main
| Range of Product | Modicon Quantum automation platform Product or Component Type Analogue input module Type of filter Single pole low pass - 3 dB at 15 Hz +/- 20 % |
|---|
Complementary
| Analogue input number | 8 |
|---|---|
| Input type | Differential |
| Addressing requirement | 9 input words |
| Analogue input resolution | 12 bits Linear measuring range 1...5 V 4...20 mA |
| Absolute maximum input | 50 V DC 25 mA |
| Input impedance | 250 Ohm current +/- 0.01 % > 20 MOhm voltage |
| Absolute accuracy error | +/- 0.05 % of full scale +/- 0.1 % of full scale maximum |
| Linearity error | +/- 0.04 % |
| Accuracy drift according to temperature | +/- 0.0025 % of full scale/°C <= 0.005 % of full scale/°C |
| Common mode rejection | > - 72 dB 60 Hz |
| Isolation between channels and bus | 1000 V DC 3000 V DC 60 s |
| Isolation between channels | 30 V DC |
| Update time | 5 ms |
| Fault type | Broken wire 4...20 mA Undervoltage range 1...5 V |
| Marking | CE |
| Local signalling | 1 LED (green) for bus communication is present (Active) 1 LED (red) for external fault 8 LEDs (green) for channel is turned on 8 LEDs (red) for channel fault |
| Bus current requirement | 240 mA |
| Power dissipation in W | 2 W |
| Module format | Standard |
| Net Weight | 0.7 lb(US) (0.3 kg) |
Environment
| Standards | UL 508 |
|---|---|
| CSA C22.2 No 142 | N/A |
| Product Certifications | FM Class 1 Division 2 cUL |
| Resistance to electrostatic discharge | 4 kV contact IEC 801-2 8 kV on air IEC 801-2 |
| Resistance to electromagnetic fields | 9.1 V/m (10 V/m) 80…1000 MHz IEC 801-3 |
| Ambient air temperature for operation | 32…140 °F (0…60 °C) |
| Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
| Relative Humidity | 95 % without condensation |
| Operating altitude | <= 16404.2 ft (5000 m) |
Ordering and shipping details
| Category | US1PC2118155 |
|---|---|
| Discount Schedule | PC21 GTIN 3595861126565 |
| Returnability | Yes |
| Country of origin | US |
Packing Units
| Unit Type of Package 1 | PCE |
|---|---|
| Nbr. of units in pkg. | 1 |
| Package 1 Height | 1.89 in (4.8 cm) |
| Package 1 Width | 6.50 in (16.5 cm) |
| Package 1 Length | 12.20 in (31.0 cm) |
| Package weight(Lbs) | 15.9 oz (450.0 g) |
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.