Manual

DC-bus operation
Basic dimensioning
Filters
8

333
EDS94SPP101 EN 7.1
Motor cable lengths in the interconnection
The assigned filters are designed for Σ l
mot
for 6 axis modules
(E94AZRP...: 60 m (= 6 x 10 m), E94AZMP...: 600 m (= 6 x 100 m)).
For a different number o f axis modules, Σ l
mot
can be determined from the following
diagrams.
25
30 35
40
45
50
55
60 65 70
75
0
2
4
6
8
10
12
14
16
18
20
l
[m]
n
Fig. 8-2 Filter E94AZRP...: Sum total of motor cable lengths as a function of the number of axis modules
2
4
6
8
10
12
14
16
18
20
0
n
250
300 350
400
450
500
550
600 650 700
750
l
[m]
Fig. 8-3 Filter E94AZMP...: Sum total of motor cable lengths as a function of the number of axis modules
Other interference factors
Compliance of EMC class C2 may also be interfered with by other factors:
ƒ Distribution of axis modules over several control cabinets
ƒ No use of Lenze system cables or cables with the same specifications
ƒ Poor connection of motor cable shields
ƒ Motor cable interruptions
ƒ Other interference sources (e.g. switched-mode power supplies)
ƒ Synchronous switching of limit switches