وصف
The Allen-Bradley 1746-P6 is a dedicated system power supply module engineered for the SLC 500 programmable controller platform. It is specifically designed to accept a 48V DC nominal input, making it an essential component for industrial applications where standard AC mains are unavailable, such as telecommunications infrastructure, remote solar installations, or battery-backed facility power systems.
Features
- Designed for SLC 500 chassis-based systems.
- Supports a wide input voltage range of 30–60V DC.
- Provides 5.0 Amps at 5V DC and 0.96 Amps at 24V DC to the backplane.
- Includes a dedicated 24V DC user power output (200 mA) for external field sensors or small auxiliary loads.
- High electrical isolation of 1800V AC RMS protects internal processor logic from external surges and noise.
- Integrated hold-up time capabilities for stable operation during brief input power fluctuations.
Applications
This power supply is intended for use in environments requiring DC-to-DC power conversion for control systems. It is commonly deployed in remote monitoring stations, mobile platforms, and critical infrastructure sites where 48V DC battery banks serve as the primary power source.
Technical Specifications
| Brand |
Allen-Bradley |
| Product Line |
SLC 500 |
| Input Voltage |
48V DC (Range: 30–60V DC) |
| Backplane Output (5V) |
5.0 A |
| Backplane Output (24V) |
0.96 A |
| User Power Output |
200 mA (18–30V DC) |
| Inrush Current |
20.0 A (max) |
| Isolation |
1800V AC RMS |
| Operating Temperature |
0 to 60 degC |
Installation Guidelines
- Ensure the PLC chassis is powered down before installing or removing the 1746-P6 module.
- Verify input voltage polarity before connecting to the terminal block to prevent damage to the unit.
- Maintain adequate spacing around the power supply in the chassis to ensure proper airflow and heat dissipation.
- Use shielded cabling for input power to minimize electromagnetic interference (EMI) in high-noise environments.
- Confirm the chassis backplane is properly grounded to the system earth to maintain safety and signal integrity.
FAQ
What is the primary input voltage for the 1746-P6?
The module is designed for a nominal 48V DC input, with an operational range between 30V and 60V DC.
Can this module power external sensors?
Yes, the 1746-P6 features a dedicated 24V DC user power output rated at 200 mA, which can be used to supply field sensors or other low-power external devices.
Is this power supply compatible with all SLC 500 chassis?
The 1746-P6 is designed to fit standard SLC 500 modular chassis; always verify your specific chassis power budget requirements before installation.
