Description
Product Name: 1755-PB720 Allen Braley Controller module
Product details:
The 1755-PB720 is a Power Supply Module designed specifically for the Allen-Bradley 1755 GuardPLC 2000 System. It is responsible for converting incoming AC or DC line voltage into the necessary DC voltages required to power the GuardPLC processor (like the 1755-L1) and the I/O modules in the chassis.
It typically occupies a dedicated slot in the GuardPLC chassis (e.g., the 1755-A6 chassis).
⚙️ Product Specifications (Parameters)
While specific detailed electrical specifications (like efficiency and exact current ratings) should always be verified in the official Rockwell Automation documentation, here are the typical high-level parameters associated with this type of power supply in the GuardPLC system:
| Parameter | Typical Details |
| Product Type | Power Supply Module |
| Series | GuardPLC 2000 System (1755 Series) |
| Input Voltage | Typically 24V DC (Though other models might support AC) |
| Output Voltages | Supplies necessary DC voltages to the backplane, such as $5.1\text{V DC}$ and $24\text{V DC}$ for the modules. |
| Compatibility | Used with 1755 GuardPLC Chassis (e.g., 1755-A6) and Controller Modules (e.g., 1755-L1). |
| Backplane Current | Provides a specified total current capacity to the backplane for powering modules. |
| Mounting | Slots into a designated power supply slot in the 1755 chassis. |
✨ Product Advantages (Key Features)
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Dedicated Safety System Power: It is integral to the certified GuardPLC safety system, ensuring reliable power delivery to critical safety components.
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Rugged Industrial Design: Built to withstand the harsh environments common in industrial settings, including temperature variations and electrical noise.
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System Integration: Designed for seamless integration into the 1755 GuardPLC chassis, ensuring compatibility and stable operation with the processor and I/O.
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Diagnostic Capabilities: Often includes indicator LEDs to quickly assess the status of the power supply and system power, aiding in troubleshooting.
⚠️ Important Considerations (Notes/Precautions)
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Safety Compliance: As part of a safety system, all installation, wiring, and maintenance must strictly adhere to local electrical codes, company safety standards, and the manufacturer’s documentation to maintain the safety integrity level (SIL).
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Proper Ventilation: Ensure adequate space around the module for proper ventilation to prevent overheating, which can reduce its lifespan and reliability.
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Correct Wiring: The input power wiring must be correctly sized and fused according to the specifications to protect the module and the system.
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Battery Replacement: The GuardPLC controller often uses a battery (like the CR1/2AA) to retain memory/program data, and while the power supply provides operating power, users must periodically check and replace this battery as per the system manual.
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Environmental Limits: Do not operate the module outside of the specified temperature, humidity, and vibration limits.
🏭 Product Applications (Product Application)
The 1755-PB720 is used wherever the Allen-Bradley GuardPLC 2000 system is deployed, which is primarily in industrial safety applications where reliable control and monitoring of potentially hazardous processes are required.
Common applications include:
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Emergency Shutdown (ESD) Systems: Providing reliable power to PLCs that monitor and initiate emergency stops on machinery or processes.
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Process Safety: In oil and gas, chemical, and power generation industries for protecting critical assets and personnel.
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Machine Safety: Interlocking physical guards, light curtains, emergency stops, and safety mats on manufacturing lines (e.g., robotics, stamping presses, packaging).
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Burner Management Systems (BMS): Controlling the safe startup, operation, and shutdown of industrial burners and furnaces.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
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