Imagine you have a control panel set up just how you need it. Your field sensors are connected and calibrated, your PLC is programmed, and the resulting values and metrics appear on the HMI. However, the entire panel requires clean, regulated 24VDC, while the facility…
Read More Single-Phase vs. Three-Phase DIN-Rail Power Supplies
Imagine you’ve just deployed a full control panel. It’s a prototype for a new machine your company will be manufacturing. You plug in the power supply, and the cabinet jumps to life. Indicator lights flash as the PLC runs through your test program, while the…
Read More DC OK Relay Contacts for Industrial Power Supply Monitoring
Industrial automation systems can use several DC voltage levels. Three common options are 12V, 24V, and 48V DC. Each voltage affects how much current the system requires to deliver a given amount of power. Choosing between a 12V, 24V, and 48V power supply starts with…
Read More 12V vs. 24V vs. 48V Power Supplies for Industrial Automation
DIN-rail power supplies are usually found in crowded industrial enclosures where other components such as PLCs, HMIs, relays, drives, and various heat-generating devices are also located. Even when a power supply has a rated capacity that is sufficient for the load connected to it, temperature…
Read More DIN-Rail Power Supply Derating and Thermal Management
Power supplies provide the DC power required by PLCs, HMIs, sensors, relays, communication devices, and other industrial equipment. When a single power supply cannot meet an application’s requirements, designers may use multiple supplies. Two common approaches are parallel power supplies and redundant power supplies. Although…
Read More Parallel vs. Redundant Power Supplies for Industrial Control Systems
Industrial control systems always rely on stable DC power to keep connected equipment operating efficiently. Wiring faults, excessive loads, equipment failures, or high temperatures can cause abnormal conditions. Industrial power supplies use built-in protection modes to respond to these conditions. The type of protection matters…
Read More Industrial Power Supply Protection Modes Explained
A 24V DC power supply provides operating power for many devices inside an industrial control panel. PLCs, HMIs, sensors, relays, communication devices, and other control components often depend on the same 24VDC power source. Choosing a power supply requires more than adding the wattage printed…
Read More 24V DC Power Supply Sizing for Industrial Control Panels
Imagine a control cabinet in which a single power supply runs a PLC, HMI, and industrial PC without difficulty during normal operation. During testing, however, the output voltage begins to drop when the IPC processes multiple images from a machine vision system. Although the connected…
Read More How to Select a DIN-Rail Power Supply for an Industrial Control Panel