Dear Sirs,
We have different PLC panels with input of single phase for control circuits but derived from 3 phase to single phase inside panel using eithe transformer or Neutral.
I would like change this 1 phase control circuit power supply with external UPS connection to avoid breakdown of PLCs IOs HMIs due to 3 phase power failure.
I would like to know whether this can be done or not ? if can be done what precaution I need to take ?
Bedavyas Rao
We have different PLC panels with input of single phase for control circuits but derived from 3 phase to single phase inside panel using eithe transformer or Neutral.
I would like change this 1 phase control circuit power supply with external UPS connection to avoid breakdown of PLCs IOs HMIs due to 3 phase power failure.
I would like to know whether this can be done or not ? if can be done what precaution I need to take ?
Bedavyas Rao
