The Allen Bradley 1771-P6S is a PLC-5 series industrial rack-mounted power supply module designed for the 1771 I/O chassis platform. It provides regulated 5V DC backplane power and is engineered for medium-to-large PLC-5 systems requiring stable and continuous power distribution.
This module is widely used in industrial automation environments where consistent system voltage, reliable load handling, and chassis-wide power stability are essential.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Catalog Number | 1771-P6S |
| Module Type | PLC-5 Power Supply Module |
| System Family | 1771 I/O / PLC-5 |
| Input Voltage | 194–264V AC |
| Nominal Input | 220V AC |
| Frequency | 47–63 Hz |
| Output Voltage | 5V DC (backplane supply) |
| Output Current | up to 8 A |
| Power Output | ~56 W |
| Max Apparent Power | ~89 VA |
| Fuse Rating | 1.5 A slow-blow, 250V |
| Backplane Load Support | PLC-5 1771 chassis systems |
| Parallel Operation | Supported (with 1771-CT cable) |
| Sensing Mode | Local / remote sensing selectable |
| Status Indicators | Power active / fault status LEDs |
| Cable Requirement | 1771-CT paralleling cable (for dual supply setup) |
| Mounting Type | 1-slot 1771 chassis module |
| Cooling Method | Natural convection |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Weight | ~0.85 kg |
| Dimensions (L×W×H) | 355 mm × 276 mm × 111 mm |
System Role Overview
The 1771-P6S serves as a core power distribution module for PLC-5 automation systems. It ensures that all installed I/O and processor modules receive stable 5V DC power from the chassis backplane.
Core functions include:
- Providing regulated 5V DC backplane power
- Supporting PLC-5 I/O and processor operation
- Enabling stable system-wide voltage distribution
- Supporting parallel redundancy configurations
- Monitoring power status and system stability
It is typically deployed in medium-to-large industrial PLC-5 control racks.
Recommended Related Modules
| Model | Function |
|---|---|
| 1771-P4S | Standard PLC-5 power supply module |
| 1771-A4B | 16-slot I/O chassis |
| 1771-ALX | Local I/O adapter module |
| 1771-SN | Remote I/O scanner module |
| 1771-DMC | Data Highway communication module |
| 1771-OBD | DC output module |
Popular Allen Bradley PLC-5 Modules
| Model | Function |
|---|---|
| 1785-L40B | PLC-5 processor module |
| 1771-A1B | Compact I/O chassis |
| 1771-A4B | Standard I/O chassis |
| 1771-SN | Remote I/O scanner |
| 1771-DMC | Communication module |
