Frequency converter
AssigneeVacon Oyj
InventorsOsmo Miettinen, Jukka Jaskari
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Abstract
The present invention relates to a frequency converter comprising a power part and a control and adjustment part. The frequency converter is characterized in that the control and adjustment part is arranged to be a separate control and adjustment unit separated from the power part and in that the control and adjustment unit forming the control and adjustment part is arranged to be connected to the power part by a telecommunication unit. The telecommunication unit is a wired optic connection or a wireless connection, the control and adjustment part and the power part then being galvanically separated.
Claims12
A frequency converter comprising:
- a power part comprising means for converting alternating current into direct current and again to alternating current having adjustable voltage and frequency,
- a control and adjustment part comprising means for controlling and adjusting the operation of the power part,
- characterized in that
- the power and adjustment part is arranged to be a separate control and adjustment unit separated from the power part.
A frequency converter as claimed in any one of the preceding claims, characterized in that the telecommunication connection is a field bus connection.
A frequency converter as claimed in any one of the preceding claims, characterized in that the telecommunication connection is a serial traffic connection.
A frequency converter as claimed in any one of the preceding claims, characterized in that the control and adjustment unit is galvanically separated from the power part.
Dependencies are inferred from the claim text.