Dc-bus operation, Basic dimensioning filters, Can be determined from the following diagrams – Lenze 9400 Manual User Manual
Page 333: Poor connection of motor cable shields, Motor cable interruptions, Synchronous switching of limit switches
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 of 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