INVT Goodrive300-19 Series Operation Manual page 36

Goodrive300-19 series open loop vector inverter special for hosit
4.4.4 Implementing a bypass connection
It is necessary to set power frequency and variable frequency conversion circuits for the assurance of
continuous normal work of the inverter if faults occur in some significant situations.
In some special situations, for example, if it is only used in soft start, the inverter can be converted
into power frequency running after starting and some corresponding bypass should be added.
 Never connect the power supply to the inverter output terminals U, V and W.
Voltage applied to the motor cable may result in permanent damage to the
inverter.
If frequent shifting is required, employ mechanically connected switches or contactors to ensure that
the motor terminals are not connected to the input power cable and inverter output terminals
simultaneously.
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Installation guidelines