4 If the drive is the last device on the fieldbus line, set
the bus termination.
a)
Find the DIP switches on the left side of the
control unit of the drive.
b)
Set the DIP switch of the RS485 bus
termination to the ON position.
c)
Biasing is built in the bus termination resistor.
The termination resistance is 220 Ω.
5 Set the bus termination for the first and the last
device of the fieldbus line. We recommend that the
first device on the fieldbus is the master device.
A. The termination is activated
B. The termination is deactivated
C. The termination is activated with a DIP
switch
D. The bus termination. The resistance is
220 Ω.
E. The fieldbus
CONTROL UNIT VACON · 83
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