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Chapter 1
1-4
Communications Methods
●
Applicable Line Wire Size, Terminal Screws, and Torque
Note For details on solderless terminal sizes and wiring methods, refer to the User's Manual.
●
Wiring Diagram
Note For information on wiring between the USB/RS-485 or RS-232C/RS-485 Converter and the
host computer, refer to the manual for the Converter.
■
Communications Parameters
With 3G3JE Communications Models (RS-485), communications parameters (communications unit
number, baud rate, data length, stop bits, and parity) can be set. The following table shows the com-
munications parameters and their setting ranges.
Terminal
screw size
Torque
Wire type
Wire size
Recommended
wire size
Cable
M3
0.5 to 0.6 N·m
Stranded wire
0.2 to 1.5 mm
2
(AWG24 to
AWG16)
0.75 mm
2
(AWG18)
Shielded twisted-pair
cable
Item
Parameter No.
Settings
Default
Communications unit number
P15
0 to 99
1
Communications baud rate
P16
2.4, 4.8, 9.6, or 19.2 kbps
9.6 kbps
Communications data length
P17
7 or 8 bits
7 bits
Communications stop bits
P18
1 or 2 bits
2 bits
Communications parity
P19
None, even, or odd
Even
FG
+
−
SG
RS-485
RS-485
Terminal No.
Signal
RS-485 (+)
RS-485 (
−
)
RS-485 (+)
RS-485 (
−
)
A
B
Host computer
RS-232C/USB
Inverter 3G3JE
-A2001-FLK
-A2002B-FLK
-A2004B-FLK
3G3JE node
at end of line
RS-485
Shield
Shield
120
Ω
(1/2 W)
Terminator
Use a 120
Ω
(1/2 W) terminator.
Terminal No.
Signal
A
B
USB/RS-485 or
RS-232C/RS-485
Converter
Signal
Communi-
cations
terminals
Communi-
cations
terminals
Summary of Contents for SYSDRIVE 3G3JV
Page 1: ...Cat No I548 E1 01 COMMUNICATIONS MANUAL 3G3JE Compact Simplified Inverters...
Page 14: ...Chapter 1 Communications Methods 1 1 Overview of Communications Methods...
Page 38: ...Chapter 3 Communications Data 3 1 Variable Area Setting Range List 3 2 Status...