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Industrial Communication Cable Technical Report
Model: 1756-CPR2 ControlLogix Redundant Power Supply Cable
1. Product Overview
The 1756-CPR2 is a redundant power supply connection cable used in ControlLogix-based industrial automation systems. It is designed to link a redundant power supply module with a chassis adapter, ensuring continuous power delivery to PLC systems in case of primary supply failure.
This cable is part of the ControlLogix hardware ecosystem and plays a supporting but critical role in maintaining system uptime and power stability in industrial control environments.
Unlike communication modules, this product is a specialized power interconnect cable, not a signal-processing device.
2. Brand and Series Information
- Brand: Industrial automation control platform
- Series: ControlLogix 1756 Series Accessories
- Product Family: Redundant Power Supply Cables
- Module Type: Chassis power connection cable
The 1756 series includes controllers, I/O modules, communication modules, and essential system accessories such as power and programming cables.
3. Product Description
The 1756-CPR2 is designed to connect a redundant power supply system to a ControlLogix chassis adapter module. It ensures that if the primary power source fails, the redundant power supply can immediately take over without interrupting controller operation.
It is typically used in systems requiring high availability, such as continuous production lines and critical infrastructure automation.
The cable length is approximately 0.91 meters (3 feet) and it is designed with industrial-grade shielding and connectors to ensure stable performance in electrically noisy environments.
4. Technical Parameters
| Parameter | Specification |
|---|---|
| Product Type | Redundant power supply cable |
| System Compatibility | ControlLogix chassis system |
| Cable Length | 0.91 m (3 ft) |
| Total Length (packaged) | ~3 m (10 ft) |
| Connector Type | Chassis adapter connectors |
| Shielding | Industrial EMI shielding |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Voltage Rating | 24 VDC system interface |
| Current Rating | up to 10 A (system dependent) |
| Power Dissipation | ~5.1 W (system context) |
| Thermal Dissipation | ~17.4 BTU/hr |
| Weight | ~0.293 kg |
| Dimensions (packaged) | approx. 32 × 15 × 14 cm |
5. Product Applications
The 1756-CPR2 is used in automation systems where redundant power architecture is required:
- Continuous production manufacturing systems
- Oil and gas processing facilities
- Power generation control systems
- Chemical and refinery plants
- Industrial automation control cabinets
- High-availability PLC systems
- Critical infrastructure monitoring systems
It is especially important in environments where power interruption is not acceptable.
6. Product Advantages
- Ensures redundant power supply continuity
- Prevents PLC system shutdown during power failure
- Industrial-grade shielding for noise resistance
- Stable connection under vibration conditions
- Simple integration into ControlLogix chassis systems
- Designed for 24/7 continuous operation
- High durability in harsh industrial environments
- Low maintenance requirement
- Compact and flexible installation design
- Proven reliability in mission-critical systems
7. Same Series / Related Models (ControlLogix Accessories & Power System Family)
| Model | Function | Key Parameters |
|---|---|---|
| 1756-CPR2 | Redundant power supply cable | 0.91 m length, ~0.293 kg |
| 1756-CPR3 | Enhanced power cable variant | Improved shielding design |
| 1756-CPR | Basic chassis power cable | Standard redundancy connection |
| 1756-PCSA2 | Chassis adapter module | Power interface module |
| 1756-PSCA | Power supply chassis adapter | Redundant power interface support |
8. Other Popular Modules in Same Ecosystem
| Model | Function | Key Parameters |
|---|---|---|
| 1756-L71 | PLC controller module | High-performance CPU, large memory |
| 1756-L72 | Advanced PLC controller | Faster processing and expanded capacity |
| 1756-EN2TR | Ethernet communication module | Dual-port redundancy support |
| 1756-IF8 | Analog input module | 8-channel signal acquisition |
| 1756-OB16E | Digital output module | 16-point output control module |
9. Engineering Summary
The 1756-CPR2 is a critical supporting component in redundant ControlLogix power architectures. While it does not process signals or control logic, it ensures uninterrupted power delivery between redundant power supplies and chassis systems.
Its role is essential in high-availability industrial automation environments where system downtime must be avoided at all costs.
With robust construction, stable electrical performance, and compatibility with ControlLogix systems, it is a standard component in reliable industrial power design.