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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Schneider Electric / Modicon |
| Part Number | 140ACO02000 |
| Product Series | Modicon Quantum |
| Output Channels | 4 isolated channels |
| Signal Ranges | 4–20 mA, 0–20 mA (Configurable via software) |
| Resolution | 12-bit (0 to 4,095 counts) |
| Backplane Current Load | 300 mA at 5.1 V DC |
| External Field Power | 24 V DC nominal (20.4 V to 28.8 V DC) |
| Isolation Voltage | 1,000 V rms channel-to-bus, 500 V DC channel-to-channel |
| Maximum Load Resistance | 750 Ω at 20 mA |
| Power Dissipation | 4.8 W maximum |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
Product Introduction & Supply Chain Strategy
The Modicon 140ACO02000 is a 4-channel analog output module engineered for the Schneider Electric Quantum backplane. It delivers isolated 4–20 mA or 0–20 mA current signals to control variable frequency drives, control valves, and field actuators in continuous process control applications.
Because Schneider Electric has designated the Quantum series as End-of-Life (EOL), securing this unit as New Surplus protects your plant against unscheduled downtime. Maintaining 1–2 factory-sealed units on-site eliminates lead time variability, avoids the failure risks of worn capacitors in used cards, and reduces Total Cost of Ownership (TCO).
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
Execute full Lock-Out/Tag-Out (LOTO) procedures on the PLC rack and the 24 V DC field supply. Put on a grounded ESD wrist strap before opening the protective anti-static bag. Photograph the existing module’s terminal block wiring and backplane keying parameters to maintain an accurate installation record.
Stage 2: Removal
Unlatch the field connector arm by pressing the top and bottom release tabs. Depress the module retention clips located at the top and bottom of the Quantum slot. Slide the old module straight out of the rack to prevent bending backplane bus pins.
Stage 3: Installation (Clone & Seat)
Inspect the rear connector pins on the new 140ACO02000 for transport damage. Align the card edge with the backplane guide slots and push firmly until both locking latches click into place. Reattach the pre-wired terminal block to the front interface.
Stage 4: Power-On & Testing
Check the 24 V DC supply rails with a digital multimeter to confirm input voltage is between 20.4 V and 28.8 V DC before energizing the rack. Apply power and verify that the front RUN LED illuminates solid green while the ERR LED remains unlit. Use EcoStruxure Control Expert (Unity Pro) to verify output channel values against a calibrated loop meter.
Firmware/Software Versions & Upgrade Notes
- Recommended Firmware: Firmware revision V1.05 or higher ensures full register compatibility across Quantum CPUs (including 140CPU11302 and 140CPU65160).
- Software Support: Fully supported in EcoStruxure Control Expert (formerly Unity Pro), Concept V2.6+, and ProWORX 32. Legacy software builds require the updated module hardware definition file (
140ACO02000.dem). - Compatibility Warning: Do not upgrade CPU firmware during an active hardware replacement. Altering controller firmware while swapping I/O modules introduces bus timing mismatches and channel mapping errors. Keep controller software environments stable during physical module replacement.
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Frequently Asked Questions (FAQ)
Why is this New Surplus unit priced higher than repaired options, but lower than original OEM list?
Our New Surplus inventory consists of original, unused factory modules sourced from verified supply chains. Unlike repaired or salvaged cards with degraded internal components, these units carry zero runtime hours and full operating life expectancies. The price reflects genuine OEM reliability at a lower cost than official factory list pricing.
Is the Modicon 140ACO02000 module officially obsolete?
Yes, Schneider Electric retired the Quantum PLC series. Because new production from the manufacturer has ceased, acquiring factory-sealed New Surplus stock is the primary method to maintain running control systems without expensive system retrofits.
Can I hot-swap the 140ACO02000 card while the Quantum rack is powered?
While Quantum backplanes technically support Hot Swap under strict conditions, changing an analog output card on an active rack risks tripping process interlocks or causing field actuator surges. Always isolate field power and pause output logic before removing or inserting an analog card.
Does the 140ACO02000 module store its logic configuration during power loss?
No, the module receives channel configuration data (such as 4–20 mA vs 0–20 mA scale parameters) directly from the Quantum CPU during controller startup. No onboard battery or persistent non-volatile memory setup is required on the I/O card itself.
What warranty coverage is provided with this New Surplus unit?
Every New Surplus 140ACO02000 module includes a full 1-year replacement warranty. Units undergo physical pin inspection and power-on validation prior to shipping in ESD-safe packaging.
