Lenze E94AYCIB - Manual (Page 43)

Electrical installation
Cable specification
6
EDK94AYCIB DE/EN/FR/ES/IT 1.0
43
l
H2 Kabelspezifikation−busltgslaenge
Cable specification
General characteristics
Cable type Sold by the meter,
(e.g. PHOENIX CONTACT: IBS RBC Meter−T, Order No.
28 06 28 6)
Number of conductors 3 × 2, twisted pairs, with shared shield
Conductor cross−section > 0.2 mm 2
DC cable resistance < 96 W /km
Impedance (characteristic) l 120
W ±
20 % (f = 64 kHz)
l 100
W ±
15
W
(f > 1 MHz)
Capacitance per unit length < 60 nF/km (f = 800 Hz)
Bus cable length
Adapt the baud rate to the length of the bus cable:
Baud rate Length of cable between the individual INTERBUS nodes
500 kBit/s 400 m
2 Mbits/s 150 m
)
Note!
Select a baud rate that matches the data volume, cycle time and number of
nodes and that is as high as is necessary for the application.