ControlLogix Power Supply | 1756 – PA75
Product Overview
The 1756 – PA75 is a high – performance power supply module that belongs to the Allen Bradley ControlLogix family. This power supply is a cornerstone for ensuring stable and reliable operation of ControlLogix systems across diverse industrial settings. With its advanced design, the 1756 – PA75 provides the necessary power to drive various modules within the ControlLogix chassis, enabling seamless operation of industrial control processes. Whether it’s powering complex automation systems in a manufacturing plant or supporting critical control functions in a power generation facility, the 1756 – PA75 is engineered to meet the demanding requirements of industrial environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 1756 – PA75 |
| Manufacturer | Allen Bradley |
| Product Type | ControlLogix Power Supply |
| Input Voltage Range | 85 – 265 VAC |
| Nominal Input Voltage | 120 VAC / 240 VAC |
| Input Frequency Range | 47 – 63 Hz |
| Input Power (Max) | 100 VA / 100 W |
| Output Power (Max) | 75 W @ 0 – 60 °C |
| Current Capacity at 1.2V DC | 1.5 A |
| Current Capacity at 3.3V DC | 4 A |
| Current Capacity at 5.1V DC | 13 A |
| Current Capacity at 24V DC | 2.8 A |
| Hold – up Time | 5 cycles @ 85 VAC 50/60Hz; 6 cycles @ 120 VAC 50/60Hz; 6 cycles @ 200 VAC 50/60Hz; 6 cycles @ 240 VAC 50/60Hz |
| Isolation Voltage | 250V (continuous), reinforced insulation type, power input to backplane |
| Operating Temperature | 0 °C – 60 °C (32 °F – 140 °F) |
| Mounting | Left side of 1756 chassis |
Key Features and Benefits
The 1756 – PA75 offers several distinct features that set it apart in the industrial power supply landscape. Firstly, its wide input voltage range from 85 to 265 VAC makes it highly adaptable to different power sources. This means it can be used in regions with varying electrical grid standards without the need for complex voltage conversion setups. Additionally, the power supply can handle input frequencies from 47 to 63 Hz, further enhancing its versatility across different industrial applications.
In terms of power output, the 1756 – PA75 is designed to provide stable and reliable power to the ControlLogix modules. With a maximum output power of 75 W at 0 – 60 °C, it can support the energy demands of multiple modules simultaneously. The different current capacities at various voltage levels (such as 1.5 A at 1.2V DC, 4 A at 3.3V DC, 13 A at 5.1V DC, and 2.8 A at 24V DC) ensure that each module within the system receives the appropriate amount of power for optimal performance.
The hold – up time feature is another advantage. In case of sudden power interruptions in the input supply, the 1756 – PA75 can maintain power for a short duration, with hold – up times varying depending on the input voltage (e.g., 5 cycles at 85 VAC 50/60Hz). This gives the system time to perform orderly shutdown procedures, preventing data loss and potential damage to the connected equipment.
The power supply also comes with a non – replaceable fuse that is soldered in place. This acts as a safeguard against fire hazards caused by short circuits, adding an extra layer of safety to the overall system.
In terms of power output, the 1756 – PA75 is designed to provide stable and reliable power to the ControlLogix modules. With a maximum output power of 75 W at 0 – 60 °C, it can support the energy demands of multiple modules simultaneously. The different current capacities at various voltage levels (such as 1.5 A at 1.2V DC, 4 A at 3.3V DC, 13 A at 5.1V DC, and 2.8 A at 24V DC) ensure that each module within the system receives the appropriate amount of power for optimal performance.
The hold – up time feature is another advantage. In case of sudden power interruptions in the input supply, the 1756 – PA75 can maintain power for a short duration, with hold – up times varying depending on the input voltage (e.g., 5 cycles at 85 VAC 50/60Hz). This gives the system time to perform orderly shutdown procedures, preventing data loss and potential damage to the connected equipment.
The power supply also comes with a non – replaceable fuse that is soldered in place. This acts as a safeguard against fire hazards caused by short circuits, adding an extra layer of safety to the overall system.
Related Models
- 1756
- – PA75K – This model may have additional features or enhanced performance compared to the standard 1756 – PA75. It could be a more ruggedized version suitable for harsher industrial environments or have improved power efficiency.
- 1756 – PSCA – A different power supply model within the ControlLogix family. It may offer different power output ratings or voltage options, making it suitable for applications with specific power requirements that the 1756 – PA75 may not fully meet.
- 1756 – L61 (controller module) – While not a power supply, it is a key component in the ControlLogix system that works in tandem with the 1756 – PA75. The power supply provides the necessary power for the controller to function and manage the overall industrial control process.
- 1756 – IB16D (input module) – This input module is designed to be used within a ControlLogix system powered by the 1756 – PA75. It allows the system to receive digital input signals, and the power supply ensures its proper operation.
- 1756 – OB16E (output module) – An output module that pairs with the 1756 – PA75 – powered ControlLogix system. It can be used to control various actuators, and the stable power from the 1756 – PA75 enables accurate and reliable output control.
The 1756 – PA75 is applicable in a wide range of typical application areas. In process industries like petrochemical plants, it powers the control systems that manage complex chemical reactions and fluid flow processes. In discrete manufacturing, it can be found in automotive assembly lines, providing power to the PLC – based control systems that ensure smooth operation of the assembly process. In infrastructure, it may be used in building automation systems, powering the control modules that manage lighting, heating, and ventilation systems.
We offer a one – year warranty on the 1756 – PA75. Our pre – sales service includes in – depth technical consultations to help you select the most suitable product for your specific industrial needs. Our after – sales service is committed to promptly addressing any issues that may arise. If you cannot find the exact model or configuration you require, please contact us immediately.
