Goodrive35 Series Closed-loop Vector Control VFD Communication protocol
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Figure 10-2 Chrysanthemum connection
1# 2# 3# 31 #Master
A+
B-
A+ B-
Figure 10-3 Chrysanthemum connection
INVT
VFD
Address 1
INVT
VFD
INVT
VFD
Address n
Earth
485 +
485-
Earth
485 +
485 -
Earth
485+
485-
Computer
Converter
GND
RS232-485
Max. length of
RS232 cable: 15m
Shielded twist pairs
120Ωterminal
resistor
Address 2
Figure 10-4 Chrysanthemum connection applications
Figure 10-5 is the star connection. Terminal resistor should be connected to the two devices which
have the longest distance. (1# and 15#device)
1#
15#
32#
6
#
Main
control
device
Figure 10-5 Star connection
It is recommended to use shield cables in multiple connection. The basic parameter of the devices,
such as baud rate and digital check bit in RS485 should be the same and there should be no repeated
address.