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Electrical installation

Wiring of system bus (CAN)

5



122

EDKCSEX064 DE/EN/FR 6.0

Bus cable length

 Note!

The permissible cable lengths must be observed.

1. Check the compliance with the total cable length in Tab. 5−1.

The baud rate determines the total cable length.

CAN baud rate [kbit/s] Max. bus length [m]

50 1500

125 630

250 290

500 120

1000 25

Tab. 5−1 Total cable length

2. Check the compliance with the segment cable length in Tab. 5−2.

The segment cable length is determined by the cable cross−section used and the

number of nodes. Without a repeater, the segment cable length corresponds to

the total cable length.

Number of nodes

Cable cross−section

0.25 mm

2

0.5 mm

2

0.75 mm

2

1.0 mm

2

2 240 m 430 m 650 m 940 m

5 230 m 420 m 640 m 920 m

10 230 m 410 m 620 m 900 m

20 210 m 390 m 580 m 850 m

32 200 m 360 m 550 m 800 m

63 170 m 310 m 470 m 690 m

Tab. 5−2 Segment cable length

3. Compare the two values detected.

If the value detected from Tab. 5−2 is smaller than the total cable length to be

provided from Tab. 5−1 , repeaters must be used. Repeaters divide the total cable

length into segments.

 Operating instructions for ECS axis module

Here you can find detailed information on how to use repeaters.

1 2 ... 117 118 119 120 121 122 123 124 125 126 127 ... 199 200

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