Lenze 8200 Frequency inverters - Manual (Page 256)

Network of several drives
8200SHB0199 10-13
10.3.2.2 Supply by means of 934X supply and feedback module
The same drive is to be additionally equipped with 934X.
Drive data
Drive Controller type Motor P
M
Efficiency
Drive 1 9328 22 kW
Drive 2 9325 5.5 kW
h = 0.9
Drive 3 8214 3.0 kW
h = 0.9
Drive 4 8212 1.5 kW
1. Determine DC-power requirements:
- Power loss P
loss
from TAB 1.
3
'&
L
Æ
3
0L
®
3
9L
É
3
'&
N:
N:
N:
N:
N: N:
3
'&
N:
2. Determine the required supply module:
Powers 9341 9342 9343
P
DC
P
V934X
P
DCtotal
34.575 kW
0.1 kW
34.675 kW 34.575 kW
0.2 kW
34.775 kW 34.575 kW
0.4 kW
34.975 kW
Input P
DC100%934X
8.3 kW 16.6 kW 31.2 kW
Input (s) P
DC2100%9328
P
12.9 kW
2.6 kW 19.0 kW
3.8 kW 22.3 kW
4.5 kW Input (s) P
DC2100%9328
P
DC2100%9325
P
12.9 kW
2.6 kW
1.6 kW 19.0 kW
3.8 kW
2.3 kW 22.3 kW
4.5 kW
2.7 kW
P
DC2100%9325
P
DC2100%8214
P
2.6 kW
1.6 kW
0.9 kW 3.8 kW
2.3 kW
1.3 kW 4.5 kW
2.7 kW
1.5 kW
P
DC2100%8214
P
DC2100%8212
1.6 kW
0.9 kW 2.3 kW
1.3 kW 2.7 kW
1.5 kW
Max. possible input
power 26.3 kW 43.0 kW 62.2 kW
- Network operation is possible with 9342 or 9343. Since P
DCtotal
is higher
than P
DC100%934X
, the network requires a second supply. The selection of
the regenerative power supply module is now only dependent on the
regenerative power.
3. Determine the second input:
- Network with 9342: Second input at 9328
- Network with 9343: Second input at 9328 or 9325
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