Bosch Rexroth BT356 Manual De Instrucciones página 32

32/124 Bosch Rexroth AG
The cable power needed for a BT356 card
rack depends on the number and sizes of the
tightening channels to be operated. As,
however, a card rack must always be
considered as fully equipped, we
recommend configuring the connected load
for a fully equipped BT356. Set the power
switches preceding the BT356 in
compliance with the nominal connected load.
Example
3-phase connection of one BT356 with an
overall connected network load of 2500 VA:
2500VA
≈ ,
6 3 A
------------------------- -
⋅
230V 3
Select the mains transformers using the
information in Tables 3 and 4. The uk value
must be below 3%.
We recommend the use of one-coil
transformers, insofar as this is not excluded
by other regulations.
BT356 | 3 609 929 B68/2008-11
Connection of several BT356s to the
mains supply
Several BT356s can be used in a single
tightening system. If this is the case, the
individual connected loads must be totaled
and the required mains transformers selected
accordingly.
Example
L1
L2
L3
PE
10 mm
1 3 5
-Q2
2 4 6
Prim L1, L2, L3
Sec 3x230V
-T1
1 3 5
-Q3
2 4 6
L1 L2 L3 PE
-BT356
Fig. 9: Example
L1
L2
L3
PE
2 10 mm
2
2.5 mm
1 3 5
-Q4
2 4 6
L1 L2 L3 PE
-BT356
2