Danfoss VLT FC 300 Operating Instructions Manual page 28

How to Install
3 3
A
B
Illustration 3.22
A) Modified 6-Pulse Connection
B) 12-Pulse Connection
Notes:
1) 6-pulse connection eliminates the harmonics reduction
benefits of the 12-pulse rectifier.
2) Suitable for IT and TN mains connection.
3) In the unlikely event that one of the 6-pulse modular
rectifiers becomes inoperable, it is possible to operate the
frequency converter at reduced load with a single 6-pulse
rectifier. Contact factory for reconnection details.
4) No paralleling of mains cabling is shown here.
28
VLT ® Automation Drive FC 300 12-Pulse
Operating Instructions High Power
R1
91-1
S1 92-1
T1
93-1
R2 91-2
92-2
S2
T2 93-2
95
R1
91-1
S1 92-1
T1
93-1
R2 91-2
92-2
S2
T2 93-2
95
1), 2), 3)
2), 4)
MG34Q202 - VLT
Rectifier 1
Rectifier 2
Rectifier 1
Rectifier 2
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is a registered Danfoss trademark