The Schneider Electric 140DDI85300 is a high-density, 32-channel discrete input module engineered for the Modicon Quantum automation series. This unit is designed to interface directly with 230 VAC field devices, providing reliable signal acquisition for complex industrial control systems. By converting high-voltage field signals into stable logic levels, it ensures seamless communication with the central processor, making it a standard choice for applications in power generation, chemical processing, and water treatment facilities.
| Model | 140DDI85300 |
| Input Channels | 32 (4 groups of 8) |
| Voltage Category | 230 VAC |
| Input Voltage Range | 170 to 276 VAC |
| Network Frequency | 47 to 63 Hz |
| Internal Bus Consumption | 300 mA at 5 VDC |
| Response Time | 12 to 24 ms (On/Off) |
| Isolation Voltage | 1780 Vrms (1 minute) |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -40 to 85 deg C |
| Relative Humidity | 0 to 95% (non-condensing) |
Can this module handle 120 VAC signals?
No, the 140DDI85300 is specifically rated for 230 VAC (170-276 VAC range). Using it with 120 VAC may result in unreliable signal detection.
Does this module support hot-swapping?
Yes, the 140DDI85300 supports hot-swapping when installed in a compatible Quantum backplane/rack configuration, allowing for replacement without stopping the entire control process.
How are the inputs grouped?
The 32 inputs are divided into 4 isolated groups, with 8 channels per group. This allows you to connect different AC phases or power supplies to different sections of the module.
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