When a Packaging Line Lost Its Power Supply, the IC695PSD140 Restored Control
A food packaging plant faced a sudden shutdown when the power supply in its RX3i control cabinet failed. The line depended on a stable 24 VDC source for relays and a regulated 5.1 VDC rail for I/O modules. With no spare on site, every hour of downtime cost thousands. The maintenance team needed a drop-in module that could handle a wide DC input range and support future redundancy. The GE IC695PSD140 solved the problem by delivering three independent outputs from a single slot in the universal backplane.
What Is the GE IC695PSD140?
The IC695PSD140 is a DC power supply module for the PACSystems RX3i platform, originally manufactured by GE Fanuc and now under Emerson Automation. It accepts an 18 to 30 VDC input and provides a total output power of 40 Watts. Three outputs serve different needs: 5.1 VDC at up to 6 Amps, 3.3 VDC at up to 9 Amps, and 24 VDC at up to 1.6 Amps for relay and power circuits. This module supports load sharing and redundancy, making it a versatile choice for critical processes.
Technical Specifications That Matter
Input Flexibility
The 18 to 30 VDC input range tolerates voltage sag common in industrial DC systems. Maximum input power is 60 Watts at full load, so you can size upstream supplies accurately. An On/Off switch on the front panel simplifies maintenance.
Triple Outputs for Mixed Loads
The 5.1 VDC output delivers up to 6 Amps for logic and I/O modules. The 3.3 VDC output provides up to 9 Amps for internal circuitry. The 24 VDC output supplies up to 1.6 Amps for relays and field power. Each output has its own current limit, protecting connected devices.
Redundancy and Load Sharing
You can install up to four IC695PSD140 modules in a universal backplane. In load-sharing mode, they share the load evenly. In redundant mode, one module backs up the other. This flexibility reduces single points of failure.
Diagnostics and Protection
Four LED indicators show Power, P/S Fault, Overtemperature, and Overload. Ripple and noise are both 150 mV, ensuring clean power for sensitive electronics. The module provides 20 ms ride-through, bridging brief input interruptions.
Where the IC695PSD140 Excels
Case Study: Redundant Power for a Water Treatment Plant
A municipal water treatment facility used a single power supply for its RX3i control system. After a lightning strike caused a shutdown, engineers installed two IC695PSD140 modules in a redundant configuration. The plant now survives a single module failure without process interruption. The 24 VDC output powers relay panels, while the 5.1 VDC rail feeds analog and digital I/O.
Manufacturing Cells with Mixed Voltage Needs
A automotive assembly cell required 5.1 VDC for distributed I/O and 24 VDC for solenoid valves. The IC695PSD140 provided both from one slot, saving panel space. The 3.3 VDC output powered communication modules without an extra supply.
Upgrading Legacy Systems
Plants replacing older GE power supplies can use the IC695PSD140 as a direct replacement in RX3i racks. It occupies two slots and requires no jumper or DIP switch settings. The module works with any RX3i CPU.
Installation and Setup
Mount the IC695PSD140 in an RX3i universal backplane. Connect input power using wire sizes from #14 to 22 AWG. Each input terminal accepts up to 6 Amps. For redundant or load-sharing configurations, ensure all modules connect to the same power source. Do not turn off the On/Off switch on any module in a load-sharing group. Keep the switch accessible for maintenance.
Maintenance and Reliability
Check the LED indicators monthly. A red P/S Fault or Overload LED signals a problem. Amber Overtemperature means the module needs better ventilation. Inspect terminals for tightness every six months. The 20 ms ride-through reduces nuisance trips during brief power dips. For maximum uptime, consider a spare module on the shelf.
Compatibility and Integration
The IC695PSD140 works with any RX3i CPU and I/O module. It cannot be used in redundant or increased-capacity mode with the IC695PSD040 or IC695PSA040. Attempting to mix these models may damage equipment. Always verify compatibility before combining power supplies.
Selection Guide
Before ordering, confirm your backplane has two free slots and your input voltage is within 18 to 30 VDC. Decide whether you need redundancy or load sharing. SpareTechPLC stocks the IC695PSD140 and can help you choose the right configuration. Contact us for current availability and lead times.
Frequently Asked Questions
Can I use the IC695PSD140 with an AC input?
No. This module requires a DC input between 18 and 30 VDC. For AC input, choose a different RX3i power supply model.
How many IC695PSD140 modules can I install in one backplane?
You can install up to four modules in a universal backplane for redundancy or increased capacity.
What do the LED indicators mean?
Power (green or amber), P/S Fault (red), Overtemperature (amber), and Overload (red) show module status. Red or amber fault LEDs require attention.
Is the IC695PSD140 compatible with the IC695PSD040?
No. Do not use them together in redundant or increased-capacity mode. Doing so may damage both modules.
What is the output power rating?
The total output power is 40 Watts maximum, with 30 Watts available at 5.1 VDC and 30 Watts at 3.3 VDC.
