Honeywell LonWorks, Инструкция по установке и эксплуатации

Страница: 15 / 30

Layout, connections and installation
Honeywell
• 13
6
Using the cable clamp included in the delivery of the drive, ground the shield of
the LonWorks cable to the frame of the AC drive.
7
If drive is the last device on the bus , the bus termination must be set. To
assure a proper data transmission, termination of the network segments is
required. Depending on the type of network, either one or two terminations are
necessary. Free topology network segment requires only one termination
whereas a doubly terminated bus topology requires two.
The jumper X5 on the Honeywell LonWorks board must be set accordingly.
• Use 94-ohm termination resistance when only one termination is needed
• 47-ohm termination resistance for two terminations
See also step 10 on page 14.
Cable clamp
21
22
23
H3
H2
H1
X5
47

94 
no termination
X5