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Keterangan
Schneider Electric 140DAO84000 Modicon Quantum AC Discrete Output Module
TheSchneider Electric 140DAO84000，also cataloged as the140DAO84000AC discrete output module, operates as a dedicated hardware component for direct AC load switching within Modicon Quantum backplane I/O execution framework.
Suffix Breakdown & Model Matrix
140: Modicon Quantum platform I/O family identifier
DAO: Discrete AC Output
84000: 16-channel output variant, 20..253 V AC range class
Hardware Specifications
Parameter
Specification
ModelBrand
Schneider Electric 140DAO84000
Origin
France
Weight
0.485 kg
PowerConsumption
1.85 + (1.1 V x total module load current)
Output Channels
16 isolated AC outputs
Output Voltage Range
20..253 V AC
Frequency Range
47..63 Hz
Off-state Leakage
1 mA to 2.5 mA rms depending on voltage level
Surge Current
up to 30 A (1 cycle per point)
Response Time
<= 0.5 ms ON/OFF
Schneider Electric Backplane Communication and Output Determinism
Within the Modicon Quantum architecture, the 140DAO84000 interfaces through the rack backplane bus, where deterministic I/O refresh cycles synchronize output word mapping to CPU scan execution. The module consumes 350 mA backplane current and maps 16 output points into a single output word addressing structure. Channel isolation is implemented in 16 independent groups of 1 channel, reducing cross-load coupling on mixed AC switching profiles. Internal RC filtering is applied to suppress dv/dt transients up to 400 V/ms, maintaining controlled switching behavior under inductive load conditions.
Frequently Asked Questions
Q: Can the module outputs be hot-swapped under load conditions? A: Hot-swap capability depends on rack configuration. Output terminals must be de-energized before module insertion or removal to avoid backplane transient stress.
Q: What is the impact of surge current on backplane loading? A: Surge current up to 30 A per point is isolated at output stage; backplane current draw remains fixed at 350 mA and is not affected by load-side inrush.
Q: Is firmware required for operation of this module? A: No local firmware is stored in the module. Operation is controlled by Modicon Quantum CPU firmware and I/O configuration database.
Field Installation Guidelines
Ensure rack power is removed before insertion or removal of the module
Verify output wiring insulation rating compatible with 253 V AC maximum
Maintain separation between AC output wiring and low-voltage signal cabling
Use appropriate fusing (5 A recommended per channel protection)
Confirm proper backplane seating to avoid intermittent I/O word mapping faults
Observe leakage current characteristics when interfacing with sensitive load inputs
