Lenze E82xVxxxKxxxxx - Manual (Page 477)

DC−bus operation
Basic dimensioning
Supply powers 230 V controllers
12
l
477 EDS82EV903−3.0
12.6.2 Supply powers 230 V controllers
The table below serves to determine the required supply power:
Supply powers in DC−bus operation, 230 V controller, three−phase
Feeding point 1 402K2C 752K2C 9365 9364 152K2C,
222K2C
551K2C,
751K2C
552K2C 302K2C
P
DC [kW] 6.5 10.1 57.5 28.8 3.7 1.4 9.0 5.1
P
loss
[kW] 0.2 0.3 0.4 0.2 0.1 0.1 0.3 0.2
Feeding point
2...n
402K2C 5.3
752K2C 7.2 8.3
9365 39.5 45.1 47.0
9364 17.2 19.6 20.4 23.5
152K2C, 222K2C 2.1 2.4 2.5 2.9 3.0
551K2C, 751K2C 0.7 0.8 0.8 1.0 1.0 1.1
552K2C 4.3 4.8 5.1 5.8 6.1 6.9 7.4
302K2C 2.1 2.4 2.5 2.9 3.1 3.5 3.7 4.2
Empty fields: A combination of feeding points is not possible
How to work with the table:
1. Draw a table with two columns, "P
DC
" and "P
loss
", on a sheet of paper.
2. Under "Feeding point 1", search from left to right until you find the first device of
the drive system and write down the corresponding powers, P
DC
and P
loss
, in the
table.
3. Search for the corresponding powers P
DC
of all other feeding points 2 ... n in the
same column and write them down in the table, too.
4. In the third line, search for the power losses (P
loss
) of all devices of the drive system
(including the devices which do not act as feeding points) and write them down.
5. Add all powers P
DC
of the table.
6. Add all powers Ploss of the table.
7. The powers at terminals U, V, W can be calculated by subtracting the sums
(P
DC
−Ploss).
8. Check whether the powers are sufficient to solve the drive task. If this is not the
case, connect further inverters to the mains and recalculate the powers.
12.6.3 Supply powers 400 V controllers
Your Lenze contact person will inform you about the required supply power for 400 V
controllers.
The addresses of your Lenze contact persons all over the world can be found on the back
cover pages of every Lenze publication.