BONFIGLIOLI Vectron AEC 401 Series, Operating Instructions Manual

Page: 70 / 90

70 Operating Instructions AEC 11/17
Connection of line choke
Figure 8-9: Connection of feed-back unit line choke, size 8
8.3.4.3
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The AEC feed-back unit requires separate wiring for mains connection.
The mains contactor K2 must be controlled by relay output X10. When the mains contactor K2 was switched
off, it must be ensured that the DC link is discharged before the mains contactor K2 can be switched on
again.
Relay output X10 will be active once the pre-charging operation in the DC-link has been completed. If the
DC-link voltage does not reach a certain level, relay output X10 will remain in idle state.
Mains contactor K2 must be designed for the maximum expected braking power of the drive.
L1 L2 L3
AEC
X10
K3
K2
K3 K3
13
14
23
24
1
2
3
13
14
A1
A2
A1
A2
ZK+
X/Y/Z
K1
23
24