Danfoss VLT AQUA Drive FC 200 Instruction Manual page 33

How to Install
4 4
A
B
C
Figure 4.1
A) 6-Pulse Connection
B) Modified 6-Pulse Connection
C) 12-Pulse Connection
Notes:
1) Parallel connection shown. A single 3-phase cable may be used with sufficient carrying capability. Shorting busbars must
be installed.
2) 6-pulse connection eliminates the harmonics reduction benefits of the 12-pulse rectifier.
3) Suitable for IT and TN AC line input connections.
4) In the unlikely event that one of the 6-pulse modular rectifiers becomes inoperable, it is possible to operate the drive at
reduced load with a single 6-pulse rectifier. Contact factory for reconnection details.
5) No paralleling of line power cabling is shown here.
4-2
VLT AQUA 12-Pulse High Power Instruction Manual
91-1
92-1
93-1
91-2
92-2
93-2
95
* F10/F11/F12/F13 Only
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), 3), 4)
3), 5)
MG.20.Y1.22 - VLT
Rectifier 1
Rectifier 2
Rectifier 1
Rectifier 2
Rectifier 1
Rectifier 2
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is a registered Danfoss trademark