Lenze E82ZAFCC100 - Manual (Page 55)

Electrical installation
Bus cable length
6
EDK82ZAFCC-100 DE/EN/FR 5.0
55
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H2 BusLeitgsLaenge-Leitungslaenge_3
3. Please compare the detected values.
If the value in Tab. 2 is smaller than the total cable length in Tab. 1, repeaters must be used.
Repeaters divide the total cable length into segments.

Note!
ƒ Please note the reduction of the total cable length due to the signal delay
of the repeater (see example (56).
ƒ Mixed operation
– With mixed operation, different devices are connected to the same
mains.
– If the total cable lengths of the devices are different at the same baud
rate, the smaller value must be used to determine the max. cable
length.
Example: Selection help
Given:
Cable cross-section: 0.5 mm 2 (according to cable specification 49)
Number of devices
connected: 63
Repeater: Lenze repeater, type 2176 (cable reduction: 30 m)
With maximum number of bus devices (63) the following cable lengths/number of
repeaters must be complied with:
Baud rate [kbits/s] 20 50 125 250 500 1000
Max. cable length [m] 3900 1500 610 270 100 9
Segment cable length [m] 310 310 310 270 100 9
Number of repeaters 13 5 1 - - -