Allen-Bradley 1794-PS1 FLEX I/O Power Supply Module
Configured for AC-to-DC power conversion and system power distribution in FLEX I/O platforms, the Allen-Bradley 1794-PS1 (1794-PS1 Power Supply Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-PS1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.40 lbs (0.18 kg) |
| Dimensions | Standard FLEX I/O power supply module profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Supply | 120-230 VAC input (50/60 Hz) |
| Power Consumption | Standard FLEX I/O power supply backplane load |
| Input Current | 0.7 A max at 120 VAC / 0.4 A max at 230 VAC |
| Output Voltage | 24 VDC |
| Mounting | DIN rail mountable |
Backplane Bus Communication Velocity and Deterministic Power Stability
The Allen-Bradley 1794-PS1 provides regulated 24 VDC field and bus power necessary to sustain high-velocity backplane bus communication across local I/O expansion racks. By stabilizing line voltage variations and filtering AC utility transients, the module maintains power integrity for attached FLEX I/O communication adapters and discrete/analog modules operating on EtherNet/IP deterministic networks, preventing logic drops during firmware flash execution or full-density I/O switching.
Frequently Asked Questions
Q: What AC input voltage range does the 1794-PS1 accept?
A: The 1794-PS1 operates on a nominal input range of 120-230 VAC at 50/60 Hz, with a maximum current draw of 0.7 A at 120 VAC and 0.4 A at 230 VAC.
Q: How does the 1794-PS1 deliver power to adjacent FLEX I/O modules?
A: The module mounts directly on the DIN rail alongside the FLEX I/O adapter and distributes 24 VDC output power through internal wiring connections to the terminal bases.
Field Installation Guidelines
- Mount the 1794-PS1 module onto a standard 35 mm DIN rail adjacent to the FLEX I/O communication adapter before applying line power.
- Establish a low-impedance ground connection between the enclosure main grounding bar and the DIN rail assembly.
- Terminate incoming 120-230 VAC power conductors at the designated terminal block, ensuring adequate branch circuit protection is installed upstream.
- Keep AC power supply input lines physically separated from low-voltage 24 VDC wiring and communication trunks inside the enclosure.
Allen-Bradley 1794-PS1 FLEX I/O Power Supply Module
Allen-Bradley 1794-PS1 FLEX I/O Power Supply Module
Configured for AC-to-DC power conversion and system power distribution in FLEX I/O platforms, the Allen-Bradley 1794-PS1 (1794-PS1 Power Supply Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-PS1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.40 lbs (0.18 kg) |
| Dimensions | Standard FLEX I/O power supply module profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Supply | 120-230 VAC input (50/60 Hz) |
| Power Consumption | Standard FLEX I/O power supply backplane load |
| Input Current | 0.7 A max at 120 VAC / 0.4 A max at 230 VAC |
| Output Voltage | 24 VDC |
| Mounting | DIN rail mountable |
Backplane Bus Communication Velocity and Deterministic Power Stability
The Allen-Bradley 1794-PS1 provides regulated 24 VDC field and bus power necessary to sustain high-velocity backplane bus communication across local I/O expansion racks. By stabilizing line voltage variations and filtering AC utility transients, the module maintains power integrity for attached FLEX I/O communication adapters and discrete/analog modules operating on EtherNet/IP deterministic networks, preventing logic drops during firmware flash execution or full-density I/O switching.
Frequently Asked Questions
Q: What AC input voltage range does the 1794-PS1 accept?
A: The 1794-PS1 operates on a nominal input range of 120-230 VAC at 50/60 Hz, with a maximum current draw of 0.7 A at 120 VAC and 0.4 A at 230 VAC.
Q: How does the 1794-PS1 deliver power to adjacent FLEX I/O modules?
A: The module mounts directly on the DIN rail alongside the FLEX I/O adapter and distributes 24 VDC output power through internal wiring connections to the terminal bases.
Field Installation Guidelines
- Mount the 1794-PS1 module onto a standard 35 mm DIN rail adjacent to the FLEX I/O communication adapter before applying line power.
- Establish a low-impedance ground connection between the enclosure main grounding bar and the DIN rail assembly.
- Terminate incoming 120-230 VAC power conductors at the designated terminal block, ensuring adequate branch circuit protection is installed upstream.
- Keep AC power supply input lines physically separated from low-voltage 24 VDC wiring and communication trunks inside the enclosure.
