GTUnit
Member
Can someone recommend a Power Loss relay to detect loss of 480V primary power to the panel.
Im using this to command HMI to stop writing datalogs to SD card in order to prevent data corruption on power loss.
What is the fastest way to sense the power loss? Voltage, current of phase loss relays?
(in case anyone is wondering the 480V to 24V power supplies have enough residual charge for a few seconds of PLC and HMI power)
Im using this to command HMI to stop writing datalogs to SD card in order to prevent data corruption on power loss.
What is the fastest way to sense the power loss? Voltage, current of phase loss relays?
(in case anyone is wondering the 480V to 24V power supplies have enough residual charge for a few seconds of PLC and HMI power)