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Schneider Electric 170ADI74050 Discrete Input Module
Configured for discrete AC signal acquisition in Modicon Momentum automation platform networks, the Schneider Electric 170ADI74050 (170ADI74050 discrete input module) provides direct electrical execution for 200...240 V AC field input monitoring through isolated input groups and backplane bus interfacing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 170ADI74050 |
| Brand | Schneider Electric |
| Product Series | Modicon Momentum |
| Product Type | Discrete inputs base AC |
| Discrete Input Channels | 16 |
| Input Grouping | 2 groups of 8 inputs |
| Rated Input Voltage | 200...240 V AC |
| Voltage Range | 163...253 V |
| Input Logic | Positive |
| Isolation Between Groups | 1780 V AC |
| Isolation Between Channels and Bus | 1780 V AC |
| Local Indication | 16 LEDs for channel status |
| Dimensions | 141.5 x 125 x 47.5 mm |
| Weight | 0.284 kg |
| Protective Treatment | TC |
| Marking | CE |
| Operating Temp | Not specified in supplied documentation |
| Power Consumption | Not specified in supplied documentation |
| Terminal Interface | Screw terminal block |
| Platform Compatibility | Modicon Momentum automation platform |
Deterministic Backplane Communication Characteristics
The module exchanges discrete state information through the Modicon Momentum backplane bus using grouped AC input scanning architecture. Input transitions are processed through isolated channel groups to minimize electrical propagation between adjacent field circuits. The 16-channel structure permits I/O density scaling without additional external signal conditioning for standard 230 V AC field devices.
Isolation barriers rated at 1780 V AC separate both channel groups and bus communication sections. This arrangement limits transient propagation from field-side disturbances into the automation rack backplane during inductive load switching or distributed panel installations.
Frequently Asked Questions
Q: Does the 170ADI74050 support hot replacement while energized? A: The supplied documentation does not explicitly define hot-swap capability. Standard industrial practice requires removal of field-side AC power and controller bus power before module insertion or extraction.
Q: Can input channels from different voltage sources be mixed on the same module? A: Channels are arranged in 2 isolated groups of 8 inputs. Separate AC sources may be connected between groups if installation grounding and voltage range limits remain within specified isolation ratings.
Q: What field wiring precautions apply to 230 V AC input channels? A: AC input wiring should be physically separated from analog and communication cables. Shield continuity and cabinet protective earth bonding should follow plant electrical grounding standards to reduce conducted noise into the input commons.
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