Operating Instructions Part 1 VCB - Bonfiglioli USA
Operating Instructions Part 1 VCB - Bonfiglioli USA
Operating Instructions Part 1 VCB - Bonfiglioli USA
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P1 06/05 5-8<br />
DC – link connection with supply via a<br />
a central DC – link circuit<br />
Terminal strip X1 L1 L2 L3 + - U V W<br />
L1 L2 L3 + - U V W<br />
PE<br />
L1<br />
L2<br />
L3<br />
~<br />
Central intermediate<br />
DC circuit<br />
DC - link circuit connection<br />
+<br />
-<br />
To further<br />
frequency<br />
inverters<br />
The central DC - link circuit can be fed via the VER power unit. Further information<br />
can be found in the corresponding documentation.<br />
Note: Linking with a central DC – link circuit is possible with the present frequency<br />
inverters of all output classes.<br />
It must be observed that a 3-phase fan is included in the units of construction<br />
size 3, <strong>VCB</strong> 400-570 and <strong>VCB</strong> 400-670. This must be supplied<br />
with voltage with the correct phase sequence at the optional terminals.<br />
The connecting terminals for the 3-phase fan are not part of the<br />
basic equipment of the frequency inverters and must be given separately<br />
in the order for the named application.
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