Description

The multi-purpose power supply module operates as a dedicated chassis power distribution source designed for high-availability industrial systems. The IC695PSD140 converts an unregulated input voltage range from 18 to 30 VDC into three stable output rails to drive internal backplane logic and field-side components. Engineered for structural compatibility with the PACSystems RX3i hardware platform, this component interfaces directly inside a universal backplane assembly, providing power delivery for process logic controllers and expansion rack nodes. The unit supports advanced configuration arrangements including load-sharing networks and active redundancy deployments, making it suitable for critical infrastructure applications such as power plant distribution, automotive assembly rows, and continuous wastewater processing plants.

Features

• Provides three internal voltage outputs: a +5.1 VDC rail, a +3.3 VDC rail, and a +24 VDC output dedicated to powering external relay module circuits.
• Supports dual-redundant or load-sharing multi-module installation with up to four identical supplies operating in a single backplane assembly.
• Equipped with front-facing diagnostics including dedicated status LEDs for power indication, generic hardware faults, internal overtemperature, and load circuit exceptions.
• Features an integrated hardware latching design that switches the module completely off during overload conditions to protect adjacent processing units.
• Contains a physical front-panel toggle switch situated behind a protection door to toggle supply outputs without interrupting incoming line utility feeds.

Applications

• Redundant Power Distribution Enclosures
• PACSystems RX3i Main and Expansion Chassis Platforms
• Load-Sharing Control System Nodes
• High-Density Field Output Relay Driver Arrays

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Module Backplane Seating: Align the supply module rails directly into the dedicated slot guides of a PACSystems RX3i Universal Backplane. Slide the module firmly backward until the rear connector is entirely mated with the backplane connectors.
• Terminal Wiring and Torque: Strip incoming 14 to 22 AWG copper field wires rated for 75 degC environments. Insert a single conductor into each block cage and tighten the integrated screw terminals to a standard torque specification of 0.5 N-m (4.4 in-lb).
• Redundancy Polarity Alignment: When grouping multiple modules onto a single external DC source, maintain identical connection polarity across every active supply. Any difference in ground or input line potential will cause machine damage or immediate fault trips.
• Overvoltage Protection Disconnect: For system Hi-pot testing routines, remove the user-installed jumper strap that bridges the lower terminal path to frame ground. Reinstall this grounding strap immediately after testing to restore internal surge protection loops.