The 1794-PS3 power supply module provides essential DC power for Flex I/O assemblies. This module accepts a wide AC input voltage range from 85 to 264VAC. It operates efficiently at both 120VAC and 230VAC nominal supply voltages. The module delivers a stable 24VDC output for connected devices.
Expert Installation Guide for the 1794-PS3
Before installation, verify that your facility voltage matches the module requirements. The 1794-PS3 accepts 85-264VAC with a frequency of 47-63 Hz. Ensure proper isolation between AC input and DC output terminals for safety. Mount the module on a standard DIN rail or panel using the open-style enclosure. The module measures 3.7 x 2.7 x 3.4 inches for a compact fit. For horizontal mounting, the output current is 3 Amperes maximum. For all other mounting orientations, the output current is 2.8 Amperes maximum. This variation depends on your specific installation direction. Connect the AC input wires to the designated terminals securely. The module requires a minimum load of 50mA for correct voltage regulation.
Technical Performance Evaluation
The 1794-PS3 exhibits excellent output regulation with a voltage range of 20.4 to 27.6VDC. This range includes noise and 5% AC ripple for stable performance. Output ripple is 1200mV peak-to-peak for demanding industrial loads. The module handles inrush current of 40A typical for one AC cycle. It also features hold-up time maintaining output during half-cycle dropouts. These characteristics ensure reliable operation under transient conditions. The module provides overcurrent protection up to 3.2 Amperes for system safety. Overvoltage protection is set at 35V DC to prevent damage. Thermal dissipation is 41.0 BTU/hr with power dissipation of 12 Watts maximum. The module operates from 0 °C to +55 °C for harsh environments. It withstands 30g operating shock and 5g vibration at 10-500 Hz. This power supply energizes up to ten Flex I/O adapters effectively.
Logistics & Standard Packaging Details
