Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | Allen‑Bradley 1762‑IQ32T |
| Manufacturer | Rockwell Automation / Allen‑Bradley |
| Product Type | Discrete DC Input Module |
| Series | MicroLogix 1200 Expansion I/O |
| Number of Inputs | 32 (point‑to‑point) |
| Input Voltage Range | 10‑30V DC (24V DC nominal) |
| Input Groups | 4 isolated groups, 8 channels per group |
| Off‑state Voltage (Max) | 5V DC |
| On‑state Voltage (Min) | 10V DC |
| On‑state Current (Min) | 1.6 mA @ 10V DC; 2 mA @ 15V DC |
| On‑state Current (Max) | 6.5 mA @ 30V DC |
| Off‑state Current (Max) | 1.0 mA |
| Nominal Impedance | 4.7 kΩ |
| Signal Delay (ON/OFF) | 8 ms |
| Backplane Current Draw | 170 mA @ 5V DC; 0 mA @ 24V DC |
| Heat Dissipation | 5.4 ‑ 6.8 W @ 30V DC |
| Isolation Rating | 1200V AC for 2s / 1697V DC for 2s; 75V DC working voltage (IEC Class 2) |
| Power Supply Distance Rating | 6 (max modules from system power supply) |
| Operating Temperature | ‑20°C to +65°C |
| Storage Temperature | ‑40°C to +85°C |
| Operating Humidity | 5‑95% non‑condensing |
| Dimensions (W x H x D) | 40.4 x 90 x 87 mm |
| Weight | 200 g (0.44 lbs) |
| Mounting | DIN Rail or Panel Mount |
| Enclosure Rating | IP20 |
| Hazardous Location Class | Class I, Division 2 Groups A, B, C, D |
| Standards Compliance | CE, C‑Tick, KCC, c‑UL‑us |
Main Features and Advantages
High‑Density 32‑Point Input Architecture with Group Isolation
The Allen‑Bradley 1762‑IQ32T delivers exceptional channel density with 32 discrete input points in a remarkably compact 40.4 mm wide housing, maximizing I/O capacity while conserving valuable panel space . The module’s four isolated groups of eight channels offer significant advantages in real‑world industrial applications—each group can be powered from a separate DC supply, enabling the mixing of devices with different operating voltages or the isolation of noisy circuits from sensitive measurement channels . This group isolation architecture, verified by rigorous dielectric testing at 1200V AC, ensures that electrical disturbances on one input group do not compromise the performance or integrity of other inputs, a critical requirement in environments with variable frequency drives, heavy motors, or frequent switching transients .
Flexible Sink/Source Wiring and Robust Electrical Specifications
The 1762‑IQ32T supports both sink and source wiring configurations, providing installation flexibility that simplifies integration with diverse field devices. Whether connecting sourcing sensors to a sinking input, or sinking devices to a sourcing input, the Allen‑Bradley 1762‑IQ32T adapts seamlessly to existing wiring practices, reducing engineering effort and minimizing the need for interposing relays . With a wide operating voltage range of 10‑30V DC and deterministic 8 ms signal delay, the 1762‑IQ32T ensures reliable operation even when supply voltages fluctuate and provides predictable input response for high‑speed counting and time‑critical logic routines . The module’s Type 1 IEC input compatibility further validates its performance against international standards, confirming its suitability for demanding control applications .
Enhanced Diagnostics and Environmental Resilience
Comprehensive LED status indication provides immediate visual confirmation of module power and input status, enabling rapid troubleshooting and reducing mean time to repair . The Allen‑Bradley 1762‑IQ32T is built to withstand challenging industrial environments, with an operating temperature range of ‑20°C to +65°C, immunity to conducted and radiated RF interference (IEC 61000‑4‑3 and ‑4‑6), resistance to electrostatic discharge up to 8 kV, and the ability to function reliably in Class I, Division 2 hazardous locations—ensuring that the 1762‑IQ32T delivers dependable performance in applications ranging from cold storage facilities to high‑temperature industrial ovens .
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