Power Supply¶
AC500 System Power Supply
As soon as the power supply of the Processor Module (CPU) is higher than the minimum Process and supply voltage (see Environmental Conditions), the power supply detection is activated and the Processor Module is started. Power supply of Processor Module and I/O modules should be powered on the same time, otherwise the Processor Module will not switch to run after startup.
When during operation the power supply is going down lower than the minimum Process and supply voltage (see Environmental Conditions) for more than 10 ms, the Processor Module is switched to safety mode (display shows “AC500”). A restart of the Processor Module only occurs by switching the power supply off and on again.
If an I/O module is disconnected during normal operation from power supply while Processor Module is still powered, the Processor Module will continue its normal operation on all other powered peripherals (I/O modules, communication modules and communication interfaces), but freezes the input image. After recovery of I/O Module power supply it will continue normal operation and inputs and outputs were updated.
Logic Controller Supply: AC500 logic controller power supply is provided through terminals L+ / M.
Process Power Supply: S500 process power supply is provided through terminals UP / ZP.
Logic Controller Supply is galvanic isolated from Process Power Supply.
As system power supply for AC500/S500, the ABB CP power supply series can be used.