Description
Description
The Allen-Bradley 1769-PB2 is a dedicated power supply module designed for the CompactLogix system. It provides the necessary DC power to the I/O bus, ensuring stable operation for various modules within the CompactLogix rack. This unit is engineered to handle industrial power requirements, converting 24V DC input into regulated 5V DC and 24V DC outputs for backplane distribution.
Features
- Input voltage range: 19.2-31.2V DC
- Output current capacity: 2.0A at 5V DC and 0.8A at 24V DC
- Supports CompactLogix system backplane power requirements
- Compatible with Series A and B modules
- Maximum inrush current of 30A at 31.2V DC
- Designed for DIN-rail or panel mounting
Technical Specifications
| Model |
1769-PB2 |
| Input Voltage |
19.2-31.2V DC |
| Power Consumption |
7.5W at 60 degC |
| Output Current (5V DC) |
2.0A |
| Output Current (24V DC) |
0.8A |
| Max Inrush Current |
30A at 31.2V DC |
| Wire Size (Solid) |
22 to 14 AWG |
| Wire Size (Stranded) |
22 to 16 AWG |
Installation Guidelines
- Ensure the power supply is installed in a clean, dry environment within the specified temperature ratings.
- Always disconnect the main power source before installing or removing the module from the backplane to prevent electrical damage.
- Use appropriate wire gauges (22-14 AWG solid or 22-16 AWG stranded) for secure terminal connections.
- Ensure proper grounding of the DIN-rail or mounting panel to minimize EMI interference.
- Maintain adequate clearance around the module to allow for proper ventilation and heat dissipation.
FAQ
Is the 1769-PB2 compatible with all CompactLogix controllers?
The 1769-PB2 is designed for the CompactLogix 1769 I/O platform. Please verify your specific controller and backplane power requirements to ensure the 2.0A/0.8A capacity is sufficient for your total system load.
What is the primary function of this module?
This module acts as a power supply for the CompactLogix I/O bus, providing regulated DC power to the modules connected to the same backplane.
