Capacitor Box - Alpha AS600M Series Manual

Chapter 7 Peripheral Equipments
of the driver is large, which is more obvious for the large capacity drivers. Sometimes,
it may cause mistaken action 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 as well as 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 driver 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
driver unused (total leakage current of circuits, EMI filter and motor, etc).

7.2.4 Capacitor Box

This optional device is applied specially on occasions where continuous operation is
required as there is relative long momentary power off over 20ms. It can be purchased
from our company. In the purchase order, please specify the actual load and the
continuous operation time required after power off, so we can manufacture it
appropriately.
As the capacitance box may influence some parameters in driver after it is assembled,
the purchasing without our instruction is not recommended.
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