Lenze CANopen Controller-based Automation Manual de usuario descargar pdf (Pagina 24)

Lenze · Controller-based Automation · CANopen® Communication Manual · DMS 6.3 EN · 04/2014 · TD17 24

5Technical data

5.4 Bus cable length

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Example: Check use of repeater

Conclusion:

• It is not possible to use a cable length of 450 m without using a repeater.

• After 360 m (test step 2) a repeater has to be used.

Result:

• The Lenze repeater, type 2176 (cable reduction: 30 m), is used

•Calculation of the maximum cable length:

• First segment: 360 m

• Second segment: 360 m (see table Segment cable length

( 22)) minus 30 m (cable reduction

for a repeater)

• Max. achievable cable length with a repeater: 690 m

• The selected cable length can be implemented.

Given:

Baud rate 125 kbps

Cable cross-section 0.5 mm

Number of nodes 28

Cable length 450 m

Test step Cable length See table ...

1 Total cable length at 125 kbps: 630 m Total cable length

( 22)

2 Segment cable length for 28 nodes and a cable cross-

section of 0.5 mm

360 m Segment cable length

( 22)

3 Comparison: The detected segment cable length is

smaller than the total cable length of 450 m to be

achieved.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 109 110

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Lenze CANopen Controller-based Automation Manual de usuario Pagina 24