The Allen-Bradley 1771-OBD is a sixteen-channel, non-isolated output module engineered for seamless integration with the PLC5 product family, making it ideal for energizing DC-powered loads such as pilot lamps, relay coils, and solenoid-actuated devices. With an output voltage range of 10-60 VDC and a nominal output voltage of 48 VDC, this module supports output channels rated at 2 A resistive, capped per module at 8 A, and accommodates pilot duty output carrying 0.2 A. Featuring impressive voltage and current specifications with a minimal load current of 2.5 mA and a maximum on-state voltage drop of 1.5 VDC, it operates efficiently with an off-state leakage current peak of 0.5 mA. Every output channel offers a surge current rating of 4 A for 10 milliseconds, repeatable every 2 seconds, and the module runs with maximum power dissipation of 15.6 W. Designed for optimal performance in a range of environmental conditions from 0 °C to 60 °C, with shock resistance and ESD immunity, the 1771-OBD is versatile and robust, ensuring reliable performance in diverse applications.
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Technical specifications for 1771-OBD
| Manufacturer | Rockwell Automation |
|---|---|
| Module Type | Discrete output module |
| Part Number/Catalog No. | 1771-OBD |
| Brand | Allen-Bradley |
| Series | 1771 Product Bulletin |
| No. of outputs | Sixteen (16) outputs |
| Operating Voltage Range | 10-60VDC |
| Nominal output voltage | 48 VDC |
| Output current rating per channel | 2 A per output resistive, not to exceed 8 A per module; 0.2 A per output pilot duty |
| Maximum Surge current | 4 A per output for 10 ms, repeatable every 2 s; 25 A per output for 10 ms, repeatable every 2 s |
| Minimum load current | 2.5 mA |
| Power Dissipation | 15.6 Watts |
| Thermal Dissipation | 53.3 BTU/hr |
| Compatible chassis | 1771 I/O chassis |
| Keying | Between 10 and 12; Between 22 and 24 |
| Field Wiring Arm | 1771-WH; 1771-WHF; 1771-WHFB |
| Wiring Arm Screw Torque | 7-9 inch-pounds |
| Number of Outputs | 16 Outputs |
| Voltage Category | 10 to 60 Volts DC, Source |
| DC Operating Voltage | 10 to 60 Volts |
| Backplane Current | 400 Miliamps |
| Max Continuous Current Per Output | 2 Amps |
| Max Continuous Current Per Module | 8 Amps |
| Wiring Arm | 1771-WH |
| Coating | Conformal Coat |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 (+/- 15) milliseconds |
| Typical DC Signal Delay (Off) | 50 milliseconds |
| Mounting | Rack Mountable |
| UPC | 10612598128485 |
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