Lenze E84AYCIB - Manual (Page 30)

E84AYCIB communication manual (INTERBUS)
Installation
Electrical installation
30
L
EDS84AYCIB EN 4.0 - 11/2010
5.2.4 Specification of the bus cable
5.2.5 Bus cable length
Adapt the baud rate according to the bus cable length:

Note!
Only use cables that meet the listed specifications.
Specification of the INTERBUS cable
Cable type
Sold by the meter
(e.g. PHOENIX CONTACT: IBS RBC meter-T, order no. 28 06 28 6)
No. of conductors 3 x 2, twisted in pairs, with joint shielding
Conductor cross-section > 0.2 mm 2
DC-cable resistance < 96 Ω/km
Impedance (characteristic) • 120 Ω ± 20 % (f = 64 kHz)
• 100 Ω ± 15 Ω (f > 1 MHz)
Capacitance per unit length < 60 nF/km (f = 800 Hz)
Baud rate Cable length between the individual INTERBUS nodes
500 kbps Max. 400 m
2 Mbps Max. 150 m

Note!
Select the baud rate which depends on the data volume, cycle time, and number
of nodes only as high as required for the application.