inverters. Sometimes, it may cause malfunction of the leakage protection circuit.
In the above cases, not only the carrier frequency should be reduced appropriately, the lead wire should be shortened
and the output reactor should be installed, but also the leakage protector should be installed. When the protector is
installed, attention should be paid to the following points:
The leakage protector should be installed at the input side of frequency inverter and had better behind the breaker.
The leakage protector functioning current should be 10 times larger than the leakage current of this circuit under
the fundamental frequency power supply and with the frequency inverter unused (total leakage current of circuits,
EMI filter and motor, etc).
7.2.5 Capacitor Box
The optional element is applied specially on occasions where continuous operation is required as there is a large
moment (over 20ms) of power off. It can be ordered in our company. In the order, please specify the actual load
and the continuous operation time required after power off, so we can manufacture the appropriate.
As the capacitance box may influence some parameters in your machine after it is assembled, the
preparation by the user is not recommended.
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