BONFIGLIOLI Vectron AEC 401 Series, Руководство по эксплуатации

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11/17 Operating Instructions AEC 63
Connection of sine filter, size 8
Figure 8-5: Connection of mains unit sine unit, size 8
For information on how to connect the device, refer to Chapter “Conductor cross-
section” and Chapter “Fuses”.
NOTE
 The cables of the AEC feed-back unit connected to the inverter DC-link must be
fused using appropriate DC fuses.
 When dimensioning the DC-fuses, the derating factors specified by the fuse
manufacturer must be considered in addition to the expected current and
voltage values. If an AEC feed-back unit with a power corresponding to the
drive inverter is used, no DC-fuses are required.
8.3.3.3 Precharging circuit
Relay X10 is controlled by the mains unit through the DC-link voltage. Once a constant DC voltage
corresponding to the rectified mains voltage is reached, precharging is considered as complete.
The discharging operation of the DC link capacitors delays the switching operation of relay X10. The mains
unit control ensures that the precharging circuit will be switched on first before connection to mains supply.

The mains unit may only be connected to mains via the precharging circuit.
 Jog operation of the mains contactor is not permissible.
 When disconnected from mains supply, the mains unit may only be reconnected to mains supply
after a defined waiting time.
 If precharging is not controlled via control terminal X10, the waiting time, e.g. by time links, must be
considered.
 The mains power circuit (mains fuses, contactor K2) must be designed for the power of the AEC
mains unit.
 Use the following table when designing the precharging circuit (precharge fuse, contactor K1):
L1 L2 L3