Bosch Rexroth LT303 Manual Del Usuario página 12

12/40 Bosch Rexroth AG | Electric Drives and Controls
4 Assembly Instructions
Number of LT303
channels with
in BT300 EC302
1 -3 all combinations admissible
4 4*
3*
1*
2*
0
1
2
5 5*
4
3
2
1
0
0
0
3
2
1
Table 2:
* within this line all combinations are
admissible
0 not assembled
Formula for determining the number n
n , n of tightening channels:
4 5
× 7 A (EC302)
n
2
×14 A (EC303)
+ n
3
×28 A (EC304)
+ n
4
×45 A (EC305)
+ n
5
≤ 145 A
: Number of tightening channels
n
2
of size 2 (EC302)
: Number of tightening channels
n
3
of size 3 (EC303)
: Number of tightening channels
n
4
of size 4 (EC304)
: Number of tightening channels
n
5
of size 5 (EC305)
LT303 LT304 LT305
with with with
EC303 EC304 EC305
4* 0
3* 0 1
1* 2 1
2* 1 1
0 3 1
0 1 2
0 0 2
5* 5* 0
0 0 1
1* 1* 1
2* 2* 1
3* 3* 1
4 0 1
3 1 1
2 2 1
0 0 2
1* 1* 2
2 0 2
, n ,
2 3
LT30x | 3 609 929 719/1.2
In addition, it is also possible to use a free
SE/LT-Slot for a KE300.
For safety reasons, unoccupied card-slots
must be closed off with BP 301 dummy pa-
nels, order no. 3 608 871 391. Slots, which
are not closed off, can cause electromagne-
tic disruptions in the system.
When the system is switched on, the servo
amplifier recognizes the size of the spindle. If
the combination is not permitted, a respecti-
ve error message is sent to the tightening
control unit. In such cases, it is not possible
to start the tightening process.