Technical Specifications Breakdown
Key parameters for the 1790D-T0B32 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Output Type | Sourcing, nonisolated |
| Number of Outputs | 32 points |
| On-State Voltage | 10V DC min, 24V DC nom, 28.8V DC max |
| On-State Voltage Drop | 0.5V DC max |
| On-State Current | 1 mA min per channel |
| Off-State Voltage | 28.8V DC max |
| Off-State Leakage | 0.5 mA max |
| Output Signal Delay (Off to On) | 0.5 ms max |
| Output Signal Delay (On to Off) | 1.0 ms max |
| Output Current Rating | 0.5 A max per output, 4.0 A max per common |
| Common Type | 16 points/2 COM |
| Isolation (I/O to Logic) | Photocoupler isolation, 1250V AC rms |
| Field Power Supply Voltage | 24V DC nom, range 10…28.8V DC |
| DeviceNet Power Supply Voltage | 24V DC nom, range 11…28.8V DC |
| Power Dissipation (Base Module) | 1.2 W max @ 28.8V DC |
| Field Power Dissipation | 6 mA @ 28.8V DC per point |
| Indicators | 32 green status LEDs |
| Wiring Terminal Block | M3.0, screw torque 7 lb-in max (use copper or copper-clad aluminum conductors) |
Industry Applications
For example, in automotive assembly lines, it can drive multiple solenoid valves or indicator lights simultaneously, leveraging its 0.5 A per output and 4.0 A per common rating. In packaging machinery, the fast output signal delay (0.5 ms off-to-on) ensures precise timing for actuators. The photocoupler isolation (1250V AC rms) protects logic circuits from field-side transients, reducing downtime in harsh industrial environments.
Installation & Setup Guidance
Mount the 1790D-T0B32 securely on a DIN rail within the DeviceNet node. Use copper or copper-clad aluminum conductors for wiring. Tighten the M3.0 terminal block screws to a maximum of 7 lb-in to ensure reliable connections. Apply 24V DC nominal field power (range 10…28.8V DC) and DeviceNet power (range 11…28.8V DC). Verify the 32 green status LEDs illuminate correctly during power-up. Ensure the common wiring supports up to 4.0 A per common (16 points per COM).
Maintenance & Reliability
Inspect the terminal block connections periodically for tightness. Keep the module free from dust and moisture. The photocoupler isolation provides robust protection, but avoid exceeding the 1250V AC rms isolation voltage. Monitor the green status LEDs for any unlit outputs, which may indicate a fault. No internal user-serviceable parts are present; replace the module if necessary.
Are Your Discrete Output Modules Reliable Enough for High-Density Control?
In modern manufacturing, every output point must deliver consistent performance under demanding conditions. The Allen-Bradley 1790D-T0B32 is a 24V DC 32-point sourcing output base module designed to provide reliable, high-density discrete control for your automation systems.
Compatibility & Integration
This base module is designed for Allen-Bradley DeviceNet systems. It integrates as a 32-point sourcing output node, communicating via the DeviceNet network. Ensure the scanner configuration matches the 16 points/2 COM common arrangement. The module operates with 24V DC nominal supply from both DeviceNet and field power sources.
Selection Guide & Purchasing Advice
When selecting the 1790D-T0B32, verify your system requires 32 sourcing outputs with 0.5 A per channel and 4.0 A per common. AutoDCSTech offers this module for your automation needs. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 1790D-T0B32 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
