Description
Description
The Allen-Bradley 1769-PB4 is a dedicated power supply module designed for the CompactLogix system. It provides the necessary DC power to support the operation of CompactLogix I/O modules and controllers within a local expansion bank. This unit is engineered to convert a 24V DC input into the regulated power required for the backplane, ensuring stable performance for industrial automation control tasks.
Features
- Designed specifically for CompactLogix system backplane power distribution.
- Wide input voltage range of 19.2 to 31.2 VDC.
- Robust power dissipation rating of 14.5 W at 60 degC.
- Compact form factor for efficient panel space utilization.
- Reliable operation in demanding industrial environments.
Technical Specifications
| Product Model |
1769-PB4 |
| Input Voltage Range |
19.2 - 31.2 VDC |
| Nominal Input Voltage |
24 VDC |
| Power Consumption |
100 VA @ 24 VDC |
| Power Dissipation |
14.5 W @ 60 degC |
| Product Line |
CompactLogix |
| Manufacturer |
Allen-Bradley |
Installation Guidelines
- Ensure the system power is disconnected before installing or removing the power supply module.
- Mount the module securely to the DIN rail or panel as per the CompactLogix system configuration.
- Maintain adequate clearance around the module to allow for proper heat dissipation and airflow.
- Use appropriate shielded cabling for DC input connections to minimize electromagnetic interference (EMI).
- Verify that the input voltage source is within the specified 19.2-31.2 VDC range before energizing.
- Handle the module using standard ESD (Electrostatic Discharge) protection practices to prevent damage to internal components.
FAQ
What is the primary function of the 1769-PB4?
The 1769-PB4 is a power supply module used to provide 24V DC power to the CompactLogix backplane, enabling the operation of connected I/O modules.
Can this power supply be used in high-temperature environments?
The module is rated for operation with a power dissipation of 14.5 W at 60 degC (140 degF). Always ensure the enclosure ventilation is sufficient to keep the ambient temperature within the manufacturer's specified limits.
