Lenze E82ZAFCC200 Instructions De Montage page 53

3. Compare both values.
If the value given in Tab. 2 is smaller than the required total cable length given in Tab. 1,
repeaters must be used. Repeaters divide the total cable length into segments.
)
Note!
Please note the reduction of the total cable length due to the signal delay
ƒ
of the repeater (see example
There is mixed operation if
ƒ
– different node devices are connected to the same mains.
– the total cable lengths of the nodes are different at the same baud rate,
the smaller value must be used to determine the max. cable length.
Example: Selection help
Given:
l
Cable cross−section:
l
Number of nodes:
l
Repeater:
At maximum number of nodes (63) the following cable lengths/number of repeaters must
be complied with:
Baud rate [kbps]
Max. cable length [m]
Segment cable length [m]
Number of repeaters
Check repeater application
Given:
l
Baud rate:
l
Cable cross−section:
l
Number of nodes:
l
Cable length:
EDK82ZAFCC−200 DE/EN/FR 5.0
^ 53
(according to cable specification ^ 48)
2
0.5 mm
63
Lenze repeater, type 2176 (cable reduction: 30 m)
20 50
3900 1500
310 310
13 5
125 kbps
2
0.5 mm
28
450 m
l
Electrical installation
).
125
590
310
1
Bus cable length
250 500
250 80
250 80
− −
6
53