Wiring of system bus (can), Important notes, Electrical installation – Lenze EPM−H606 User Manual
Page 79
Electrical installation
Wiring of system bus (CAN)
Important notes
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79
EDBPM−H605 DE/EN/FR 7.2
5.4
Wiring of system bus (CAN)
5.4.1
Important notes
)
Note!
ƒ
The operating unit features an internal, hard−wired bus
terminating resistor. Therefore it has to be first or last node.
ƒ
The setting of the baud rate is described in the documentation
"HMI designer − First steps .
ƒ
Detailed information on the system bus (CAN) can be found in
the Communication Manual (CAN).
We recommend the use of CAN cables in accordance with ISO 11898−2:
CAN cable in accordance with ISO 11898−2
Cable type
Paired with shielding
Impedance
120
W (95 ... 140 W)
Cable resistance/cross−section
Cable length
£ 300 m £ 70 mW/m / 0.25 0.34 mm
2
(AWG22)
Cable length 301 1000 m
£ 40 mW/m / 0.5 mm
2
(AWG20)
Signal propagation delay
£ 5 ns/m