16-point 24V AC input slice
The Schneider Modicon 140DAI34000 is a 16-point 24V AC discrete input module for the Quantum automation platform, addressing as one input word and drawing 180 mA from the backplane bus. It accepts line frequencies from 47 to 63 Hz; at nominal 60 Hz each channel draws 12 mA, or 10.7 mA at 50 Hz. The input impedance of 2600 Ω capacitive at 60 Hz (3100 Ω at 50 Hz) presents a light load to the source transformer, suitable for long AC runs in cold storage or freezer areas where signal transformers may be undersized.
Noise margins and isolation
Channel-to-bus and channel-to-channel isolation rated 1780 Vrms for one minute. Maximum leakage current is 1.9 mA.
Response timing and diagnostics
Response time is line-cycle-dependent: Off-On ranges from 4.9 ms (60 Hz) to 0.75 ms (50 Hz); On-Off from 7.3 ms to 12.3 ms. The module adapts timing to the detected line frequency, so a 50/60 Hz system swap does not require reconfiguration. Sixteen green LEDs per input and a green bus-active LED give immediate visual feedback for on-site troubleshooting. A red LED signals an external fault.
Sourcing posture
Available to order against an RFQ. Since it is an active Quantum family module, lead times are standard factory build cycles.
