Description
Product Name: 1785-O5C Allen Bradley Power module
Product details:
The Allen-Bradley 1785-O5C would typically be an Output Module designed for use within the Allen-Bradley PLC-5 Programmable Logic Controller (PLC) system. These modules serve as the interface between the PLC’s control logic (the CPU) and the external, real-world devices it controls, such as relays, contactors, pilot lights, and solenoids.
2. ⚙️ Product Parameters (Typical of 1785 Output Modules)
| Parameter | Typical Value/Description |
| Series/Family | PLC-5 |
| Module Type | Digital Output Module (potentially AC, DC, or Relay) |
| Output Type | Could be Solid-State (e.g., TTL, sinking/sourcing DC, triac AC) or Electromechanical (Relay) |
| Number of Outputs | Varies (e.g., 8, 16, 32 points) |
| Voltage Range | Varies (e.g., 10-60V DC, 85-132V AC, 170-265V AC) |
| Current Rating (per point) | Varies (e.g., 0.5A, 1A, 2A) |
| Backplane Current Draw | Specific to the module (needed for power calculations) |
| Isolation | Channel-to-channel or group-to-backplane isolation is common |
| Terminal Block | Removable or fixed (e.g., 1771-P7) |
3. ✨ Product Advantages (General PLC-5 Advantages)
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Robustness and Reliability: Built for demanding industrial environments, known for long operational life.
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High Power Capacity (Relay Modules): Relay output modules allow for switching higher current loads directly.
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Industrial Standard: Part of the legacy PLC-5 platform, which is widely understood and supported in many existing installations.
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Group Isolation: Often features electrical isolation between output groups, protecting the controller from external electrical noise and faults.
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Ease of Maintenance: Designed for hot-swapping (if the chassis supports it) and features diagnostic indicators (LEDs) for quick troubleshooting.
4. ⚠️ Important Notes (Precautions)
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Part Number Verification: Crucial to verify the exact part number (1785-O5C), as specifications (voltage, current, number of points) depend entirely on the final letter code.
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Load Matching: The connected load must not exceed the module’s maximum voltage and current rating per point and per group.
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Power Requirements: Ensure the chassis power supply can handle the module’s backplane current draw.
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Wiring Standards: Use proper wiring techniques, including appropriate wire gauges and ferrules, and follow local electrical codes.
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End-of-Life Status: The PLC-5 platform is a legacy system. While still functional, users should be aware that Allen-Bradley’s focus is on newer platforms like the ControlLogix series.
5. 🛠️ Product Applications
The 1785-O5C (or a similar PLC-5 output module) is primarily used in applications that require robust control of discrete devices in a factory setting:
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Manufacturing and Assembly Lines: Controlling solenoids for pneumatic/hydraulic actuators, motor starters, and indicating lights.
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Process Control: Operating valves, pumps, and alarms in chemical, water, or power generation facilities.
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Material Handling: Actuating conveyor systems, indexing tables, and packaging machinery.
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Machine Control: Providing outputs to control mechanisms in dedicated industrial machines.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
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Colour：new Warranty: 12 months
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