Power Supply Unit for VME
The EKE-Trainnet® Power Supply Unit for VME (PSV) is a highly reliable switching mode power supply module.
The EKE-Trainnet® PSV, specifically designed for VME Bus systems, works only together with the EKE-Trainnet® Power Input Unit (PIU) module, which takes power from the train batteries and transfers it to the EKE-Trainnet® PSV module.
Key Features
The EKE-Trainnet® PSV has built-in circuitry to detect and control the input current in the event of a power-up. Controlling the in-rush current prevents component damage.
The ACFAIL and SYSRESET signals are activated to ensure proper shutdown of the systems. This feature allows the system to record subsystem and module states during the shutdown, thus enabling event diagnostics.
The EKE-Trainnet® PSV grace supply function enables the module to continue working for a short period of time when the power is cut off. The PSV module withstands 10 ms input power breaks without disrupting any of the normal operations (Voltage Supply Interruption as per EN50155 Class S2 and Supply change over as per EN50155 Class C1). If the break lasts longer, the power supply is capable of supplying a +5 V DC output during a minimum of 100 ms after the input power is lost, 80 ms for PSV1133C.
When the input supply voltage is below the set minimum value, EKE-Trainnet® PSV minimises current consumption to prevent the deep discharge of train batteries.
