Lenze EMF2180IB EthernetCAN - Manual (Page 48)

6 Electrical installation
Connection of system bus (CAN)
EDKMF2180 DE/EN/FR/ES/IT 3.0
48

H1_E_INST-SteckerFederkraftAnschluss FKCT
Between CAN_LOW and CAN-HIGH the CAN bus has to be terminated by resistors (120 Ω ).
The Sub-D plug with an integrated terminating resistor (order no. EWZ0046, not included
in the scope of supply) complies with the recommendation DS 102-1 of CiA.
L
EWZ0046
OFF
ON
OFF
ON
ON
OFF
р
р р р
OUT IN IN IN
On Off On 120 120 120
L
EWZ0046
L
EWZ0046
L
EWZ0046
2181FEW004
Specification of the transmission cable
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 Ω (95 ... 140 Ω )
Cable resistance/cross-section
Cable length
≤
300 m
≤
70 m
Ω
/m / 0.25 … 0.34 mm 2 (AWG22)
Cable length 301 … 1000 m ≤
40 m
Ω
/m / 0.5 mm 2 (AWG20)
Signal propagation delay ≤
5 ns/m
Observe the information on the bus cable length(49)!