INVT Goodrive350-19 Series User Manual

Goodrive350-19 series VFD Communication protocols
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According to the requirements of the RS485 industrial bus standards, all the devices need to be
connected in chrysanthemum mode with one 120 Ω terminal resistor on each end, as shown in Figure
10.2. Figure 10.3 simplified wiring diagram, and Figure 10.4 is the practical application diagram.
1# 2
#
3 # 4 # 32 #
120Ω
120Ω
Figure 10.2 Onsite chrysanthemum connection diagram
1# 2# 3# 31 #Master
A+
B-
A+ B-
Figure 10.3 Simplified chrysanthemum connection diagram
INVT
VFD
Address 1
Ground
485+
485-
Ground
485+
485-
Ground
485+
485-
120Ω
Terminal
resistor
PC
Converter
GND
RS232- 485
RS cable max.
length: 15m
Shielded twisted pair
Address 2
Address n
INVT
VFD
INVT
VFD
Figure 10.4 Practical application diagram of chrysanthemum connection
Figure 10.5 shows the start connection diagram. When this connection mode is adopted, the two
devices that are farthest away from each other on the line must be connected with a terminal resistor
(in this figure, the two devices are devices 1# and 15#).

INVT Goodrive350-19 Series Specifications

General

Brand	INVT
Model	Goodrive350-19 Series
Category	DC Drives
Language	English