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Questions

  • No : 21974
  • Release Date : 2018/08/22 16:30
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Relationship between undervoltage warning and instantaneous power failure

While using the U100, an instantaneous power failure occurs frequently and the inverter issues the undervoltage warning for each time.
What is the relationship between undervoltage and instantaneous power failure, that is, how the inverter operates against an instantaneous power failure, and in which condition the under voltage warning is issued?
Category : 

Answer

When an instantaneous power failure occurs and the inverter's bus voltage drops below the standard value, it outputs an undervoltage warning and stops its output. If the instantaneous power failure is very short and the inverter's bus voltage does not drop below the standard value, the inverter continues operating.
Even when the inverter issues the undervoltage warning due to an instantaneous power failure, the inverter restarts (if the start signal is alive) from 0 Hz when the power restores.
Product Name
Inverter, magnet motor drive
Product Category
Three-phase 200 V input the inverter
Series
FR-U100
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