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Fault contact when connecting separate power supply for each control circuit
I understand the sequence after powering on the device as follows:
Control power supply on -> Initialization -> Main circuit power supply on
In this sequence, does the error display and fault warning relay NC contact open during initialization?
The technical material describes the fault warning relay operation as "The NC contact closes normally and while the inverter is powered off". Does this "inverter power supply" mean the control power supply?
Control power supply on -> Initialization -> Main circuit power supply on
In this sequence, does the error display and fault warning relay NC contact open during initialization?
The technical material describes the fault warning relay operation as "The NC contact closes normally and while the inverter is powered off". Does this "inverter power supply" mean the control power supply?
- Category :
Answer
Since the inverter's fault contact is an NC contact, it does not open unless a fault occurs.
Therefore, when the control power supply (and main circuit power supply) is off or the inverter is being initialized after control power supply on, no error is output and the fault contact remains closed.
Therefore, when the control power supply (and main circuit power supply) is off or the inverter is being initialized after control power supply on, no error is output and the fault contact remains closed.
- Product Name
- Inverter, magnet motor drive
- Series
- Others
